diff --git a/docs/ENGINE_INTEGRATION_GUIDE.md b/docs/ENGINE_INTEGRATION_GUIDE.md
index 90233a4..8a8d658 100644
--- a/docs/ENGINE_INTEGRATION_GUIDE.md
+++ b/docs/ENGINE_INTEGRATION_GUIDE.md
@@ -84,8 +84,9 @@ class MyEnginePlugin(EngineValidationPlugin):
         return {
             "qos_features_supported": ["*"],
             "composition_nodes_supported": ["TASK", "SEQ"],
-            "objective_types_supported": ["weighted_sum"],
+            "objective_types_supported": ["MONO"],
             "constraints_supported": ["attribute_bound"],
+            "type": "HEURISTIC", # or "EXACT" depending on your engine's nature
             "schema_version": "v1",
         }
 
diff --git a/engines/many-heuristic/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java b/engines/many-heuristic/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java
index adaf380..43fbd31 100644
--- a/engines/many-heuristic/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java
+++ b/engines/many-heuristic/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java
@@ -15,18 +15,30 @@
 import es.us.isa.qosawarewsbinding.solution.QoSAwareWSCompositionSolution;
 
 import java.io.IOException;
-import java.io.InputStreamReader;
+import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.nio.charset.StandardCharsets;
+import java.io.ByteArrayOutputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
 public class Controller implements HttpHandler {
+    private static final long MAX_BODY_BYTES = 512L * 1024L * 1024L;
+    private static final String PAYLOAD_TOO_LARGE_MESSAGE =
+            "Request body is too large. Maximum allowed size is " + MAX_BODY_BYTES + " bytes.";
+
     private final Gson gson = new Gson();
 
+    private static class PayloadTooLargeException extends RuntimeException {
+        PayloadTooLargeException(String message) {
+            super(message);
+        }
+    }
+
     @Override
     public void handle(HttpExchange exchange) throws IOException {
         if (!"POST".equalsIgnoreCase(exchange.getRequestMethod())) {
@@ -35,7 +47,18 @@ public void handle(HttpExchange exchange) throws IOException {
         }
 
         try {
-            SolveRequest req = gson.fromJson(new InputStreamReader(exchange.getRequestBody()), SolveRequest.class);
+            String contentLength = exchange.getRequestHeaders().getFirst("Content-Length");
+            if (contentLength != null) {
+                try {
+                    if (Long.parseLong(contentLength) > MAX_BODY_BYTES) {
+                        throw new PayloadTooLargeException(PAYLOAD_TOO_LARGE_MESSAGE);
+                    }
+                } catch (NumberFormatException ignored) {
+                }
+            }
+
+            String requestBody = readBodyWithLimit(exchange.getRequestBody(), MAX_BODY_BYTES);
+            SolveRequest req = gson.fromJson(requestBody, SolveRequest.class);
             SolveResponse resp = process(req);
 
             String jsonResp = gson.toJson(resp);
@@ -50,6 +73,12 @@ public void handle(HttpExchange exchange) throws IOException {
             OutputStream os = exchange.getResponseBody();
             os.write(error.getBytes());
             os.close();
+        } catch (PayloadTooLargeException e) {
+            String error = "{\"error\": \"" + e.getMessage() + "\"}";
+            exchange.sendResponseHeaders(413, error.length());
+            OutputStream os = exchange.getResponseBody();
+            os.write(error.getBytes());
+            os.close();
         } catch (Exception e) {
             StringWriter sw = new StringWriter();
             PrintWriter pw = new PrintWriter(sw);
@@ -64,6 +93,23 @@ public void handle(HttpExchange exchange) throws IOException {
         }
     }
 
+    private String readBodyWithLimit(InputStream inputStream, long maxBytes) throws IOException {
+        ByteArrayOutputStream output = new ByteArrayOutputStream();
+        byte[] buffer = new byte[8192];
+        long total = 0;
+
+        int bytesRead;
+        while ((bytesRead = inputStream.read(buffer)) != -1) {
+            total += bytesRead;
+            if (total > maxBytes) {
+                throw new PayloadTooLargeException(PAYLOAD_TOO_LARGE_MESSAGE);
+            }
+            output.write(buffer, 0, bytesRead);
+        }
+
+        return new String(output.toByteArray(), StandardCharsets.UTF_8);
+    }
+
     private SolveResponse process(SolveRequest req) {
         ProblemBuilder builder = new ProblemBuilder();
         ProblemBuildResult mapped = builder.build(req);
diff --git a/engines/minizinc-csp/model/composition.mzn b/engines/minizinc-csp/model/composition.mzn
index 51d1810..d3282b9 100644
--- a/engines/minizinc-csp/model/composition.mzn
+++ b/engines/minizinc-csp/model/composition.mzn
@@ -26,6 +26,7 @@ int: KIND_SEQ = 2;
 int: KIND_AND = 3;
 int: KIND_XOR = 4;
 int: KIND_LOOP = 5;
+int: KIND_ELEMENT = 6;
 
 array[1..n_nodes] of int: node_kind;
 array[1..n_nodes] of int: node_task_id; % 0 if not TASK
@@ -48,6 +49,8 @@ array[1..n_qos, 1..5] of int: agg_policy;
 
 % 5. Objective Weights and Bounds
 array[1..n_qos] of float: qos_weights;
+array[1..n_qos] of float: neutral_qos;
+array[1..n_qos] of float: qos_lb;
 array[1..n_qos] of float: qos_ub;
 
 % --- VARIABLES ---
@@ -100,7 +103,7 @@ array[1..n_nodes, 1..n_qos] of var float: node_qos;
 
 % Bound Constraint (Optional but helps solver)
 constraint forall(i in 1..n_nodes, q in 1..n_qos)(
-    node_qos[i,q] >= 0.0 /\ node_qos[i,q] <= qos_ub[q]
+    node_qos[i,q] >= qos_lb[q] /\ node_qos[i,q] <= qos_ub[q]
 );
 
 constraint forall(i in 1..n_nodes)(
@@ -109,6 +112,10 @@ constraint forall(i in 1..n_nodes)(
         forall(q in 1..n_qos)(
             node_qos[i,q] == cand_qos[c, q]
         )
+    elseif node_kind[i] == KIND_ELEMENT then
+        forall(q in 1..n_qos)(
+            node_qos[i,q] == neutral_qos[q]
+        )
     elseif node_kind[i] == KIND_LOOP then
         % Loop Aggregation
         % Child is node_children[i,1]
diff --git a/engines/minizinc-csp/src/dzn_builder.ts b/engines/minizinc-csp/src/dzn_builder.ts
index ea4587b..2c85415 100644
--- a/engines/minizinc-csp/src/dzn_builder.ts
+++ b/engines/minizinc-csp/src/dzn_builder.ts
@@ -57,13 +57,12 @@ export class DznBuilder {
 
     const scaleValue = (val: number, featId: string): number => {
       const range = featureRanges[featId] || { min: 0.0, max: 1.0 };
-      const denom = range.max - range.min;
-      if (Math.abs(denom) < 1e-12 || !Number.isFinite(val)) return 0.0;
-      let scaled = (val - range.min) / denom;
-      if (scaled < 0.0) scaled = 0.0;
-      if (scaled > 1.0) scaled = 1.0;
-      if (!Number.isFinite(scaled)) return 0.0;
-      return scaled;
+      if (!Number.isFinite(val)) return 0.0;
+      let bounded = val;
+      if (Number.isFinite(range.min) && bounded < range.min) bounded = range.min;
+      if (Number.isFinite(range.max) && bounded > range.max) bounded = range.max;
+      if (!Number.isFinite(bounded)) return 0.0;
+      return bounded;
     };
 
     const FN_MAP: Record<string, number> = {
@@ -78,18 +77,47 @@ export class DznBuilder {
     };
     const DEFAULT_FN = 1;
 
+    const usesProductSpace = (featId: string): boolean => {
+      const compose = (instance.aggregation_policies?.[featId]?.compose || {}) as Record<string, any>;
+      const fns = [compose.seq?.fn, compose.and?.fn, compose.xor?.fn, compose.loop?.fn]
+        .map((v: any) => String(v || '').toLowerCase());
+      return fns.includes('product') || fns.includes('scaled_product');
+    };
+
+    const featureUsesProductSpace: Record<string, boolean> = {};
+    for (const feat of features) {
+      featureUsesProductSpace[feat] = usesProductSpace(feat);
+    }
+
+    const toModelValue = (scaledVal: number, featId: string): number => {
+      if (!featureUsesProductSpace[featId]) {
+        return scaledVal;
+      }
+      const safe = Math.max(1e-12, scaledVal);
+      return Math.log(safe);
+    };
+
     const agg_policy: number[][] = [];
 
     for (const feat of features) {
       const pol = (instance.aggregation_policies || {})[feat] || {};
       const compose = pol.compose || {};
+      const productSpace = featureUsesProductSpace[feat];
+
+      const mapFnForFeature = (fnRaw: any): number => {
+        const fn = String(fnRaw || '').toLowerCase();
+        if (productSpace && (fn === 'product' || fn === 'scaled_product')) {
+          return 1;
+        }
+        return FN_MAP[fn] || DEFAULT_FN;
+      };
 
       const row: number[] = [];
       row.push(DEFAULT_FN);
-      row.push(FN_MAP[compose.seq?.fn?.toLowerCase()] || DEFAULT_FN);
-      row.push(FN_MAP[compose.and?.fn?.toLowerCase()] || FN_MAP.max);
-      row.push(FN_MAP[compose.xor?.fn?.toLowerCase()] || 5);
-      row.push(FN_MAP[compose.loop?.fn?.toLowerCase()] || DEFAULT_FN);
+      row.push(mapFnForFeature(compose.seq?.fn));
+      row.push(mapFnForFeature(compose.and?.fn) || FN_MAP.max);
+      row.push(mapFnForFeature(compose.xor?.fn) || 5);
+      row.push(mapFnForFeature(compose.loop?.fn));
       agg_policy.push(row);
     }
 
@@ -123,7 +151,7 @@ export class DznBuilder {
         let val = qosData[feat];
         if (val === undefined || val === null) val = 0.0;
         const scaled = scaleValue(Number(val), feat);
-        row.push(scaled);
+        row.push(toModelValue(scaled, feat));
       }
       cand_qos.push(row);
     });
@@ -149,9 +177,25 @@ export class DznBuilder {
 
     const constraints = instance.constraints || [];
 
+    const neutral_qos: number[] = [];
+    for (const featId of features) {
+      const featDef = featureDefinitions.find((feat: any) => feat.id === featId) || {};
+      const featDir = (featDef.direction || 'MINIMIZE').toUpperCase();
+      const neutralRaw =
+        (instance.aggregation_policies?.[featId]?.neutral as number | undefined) ??
+        (featDir === 'MAXIMIZE' ? featDef.valid_range?.min : featDef.valid_range?.max);
+      const neutralValue =
+        neutralRaw !== undefined && neutralRaw !== null
+          ? toModelValue(scaleValue(Number(neutralRaw), featId), featId)
+          : 0.0;
+      neutral_qos.push(neutralValue);
+    }
+
+    const qos_lb: number[] = [];
     const qos_ub: number[] = [];
     for (let f = 0; f < n_qos; f++) {
       const featId = features[f];
+      const productSpace = featureUsesProductSpace[featId];
       const isAvailability =
         featId.toLowerCase().includes('availability') || featId.toLowerCase().includes('success');
 
@@ -162,7 +206,7 @@ export class DznBuilder {
         (featDir === 'MAXIMIZE' ? featDef.valid_range?.min : featDef.valid_range?.max);
       const neutralScaled =
         neutralRaw !== undefined && neutralRaw !== null
-          ? scaleValue(Number(neutralRaw), featId)
+          ? toModelValue(scaleValue(Number(neutralRaw), featId), featId)
           : 0.0;
 
       let constraintMax = 0.0;
@@ -171,15 +215,15 @@ export class DznBuilder {
         if (c.attribute_id !== featId) continue;
 
         if (typeof c.value === 'number') {
-          constraintMax = Math.max(constraintMax, scaleValue(Number(c.value), featId));
+          constraintMax = Math.max(constraintMax, Math.abs(toModelValue(scaleValue(Number(c.value), featId), featId)));
         } else if (c.value && typeof c.value === 'object') {
           const minVal = c.value.min;
           const maxVal = c.value.max;
           if (minVal !== undefined && minVal !== null) {
-            constraintMax = Math.max(constraintMax, scaleValue(Number(minVal), featId));
+            constraintMax = Math.max(constraintMax, Math.abs(toModelValue(scaleValue(Number(minVal), featId), featId)));
           }
           if (maxVal !== undefined && maxVal !== null) {
-            constraintMax = Math.max(constraintMax, scaleValue(Number(maxVal), featId));
+            constraintMax = Math.max(constraintMax, Math.abs(toModelValue(scaleValue(Number(maxVal), featId), featId)));
           }
         }
       }
@@ -189,12 +233,17 @@ export class DznBuilder {
         maxVal = Math.max(1.0, ...cand_qos.map((row) => Math.abs(row[f])));
       }
 
-      maxVal = Math.max(maxVal, neutralScaled, constraintMax);
+      maxVal = Math.max(maxVal, Math.abs(neutralScaled), constraintMax);
 
       const seqPol = agg_policy[f]?.[1] || 1;
       const loopPol = agg_policy[f]?.[4] || 1;
 
-      if (isAvailability || seqPol === 2 || loopPol === 2) {
+      if (productSpace) {
+        const absBound = Math.max(1.0, maxVal * Math.max(1, n_tasks) * 10);
+        qos_lb.push(-absBound);
+        qos_ub.push(absBound);
+      } else if (isAvailability || seqPol === 2 || loopPol === 2) {
+        qos_lb.push(0.0);
         qos_ub.push(1.0);
       } else if (seqPol === 1 || loopPol === 1) {
         let taskSum = 0;
@@ -205,8 +254,10 @@ export class DznBuilder {
           }
         }
         const loopFactor = 10;
+        qos_lb.push(0.0);
         qos_ub.push(Math.max(1.0, taskSum * loopFactor));
       } else {
+        qos_lb.push(0.0);
         qos_ub.push(maxVal * 1.5);
       }
     }
@@ -284,7 +335,7 @@ export class DznBuilder {
     const qos_weights: number[] = [];
     for (const feat of features) {
       let w = Number(weightsObj[feat] || 0.0);
-      if (featureDirection[feat] === 'MAXIMIZE') {
+      if (featureDirection[feat] === 'MAXIMIZE' && !featureUsesProductSpace[feat]) {
         w = -w;
       }
       qos_weights.push(w);
@@ -324,7 +375,7 @@ export class DznBuilder {
         if (scope === 'global') {
           gc_attr.push(attrIdx);
           gc_op.push(validOp);
-          gc_val.push(scaleValue(c.value, featId));
+          gc_val.push(toModelValue(scaleValue(c.value, featId), featId));
         } else if (scope === 'local') {
           const taskId = c.task_id || (c.tasks && c.tasks[0]);
           const tIdx = taskId ? taskIdx[taskId] : undefined;
@@ -332,7 +383,7 @@ export class DznBuilder {
             lc_task.push(tIdx);
             lc_attr.push(attrIdx);
             lc_op.push(validOp);
-            lc_val.push(scaleValue(c.value, featId));
+            lc_val.push(toModelValue(scaleValue(c.value, featId), featId));
           }
         }
       } else if (kind === 'dependency') {
@@ -387,6 +438,8 @@ export class DznBuilder {
         agg_policy = ${fmt2d(agg_policy)};
         
         qos_weights = ${fmt(qos_weights)};
+        neutral_qos = ${fmt(neutral_qos)};
+        qos_lb = ${fmt(qos_lb)};
         qos_ub = ${fmt(qos_ub)};
 
         n_global_constraints = ${gc_attr.length};
@@ -413,7 +466,7 @@ export class DznBuilder {
     if (k === 'AND') return 3;
     if (k === 'XOR') return 4;
     if (k === 'LOOP') return 5;
-    if (k === 'ELEMENT') return 2;
+    if (k === 'ELEMENT') return 6;
     return 0;
   }
 }
diff --git a/engines/minizinc-csp/src/index.ts b/engines/minizinc-csp/src/index.ts
index 6d089d1..12aea7d 100644
--- a/engines/minizinc-csp/src/index.ts
+++ b/engines/minizinc-csp/src/index.ts
@@ -2,7 +2,9 @@ import Fastify from 'fastify';
 import { Solver } from './solver';
 import { JobManager } from './jobs';
 
-const fastify = Fastify({ logger: true });
+const MAX_BODY_BYTES = 512 * 1024 * 1024;
+
+const fastify = Fastify({ logger: true, bodyLimit: MAX_BODY_BYTES });
 const solver = new Solver();
 const jobManager = new JobManager();
 
diff --git a/engines/minizinc-csp/src/solver.ts b/engines/minizinc-csp/src/solver.ts
index 9e193ed..7dfaf6d 100644
--- a/engines/minizinc-csp/src/solver.ts
+++ b/engines/minizinc-csp/src/solver.ts
@@ -3,12 +3,15 @@ import { DznBuilder } from './dzn_builder';
 import { MiniZincRunner } from './minizinc_runner';
 
 export class Solver {
-    private readonly SOLVER_NAME = 'gecode';
+    private readonly DEFAULT_SOLVER_NAME = 'gecode';
     private readonly tmpDir = path.resolve(__dirname, '../tmp_minizinc');
     private readonly builder = new DznBuilder();
     private readonly runner = new MiniZincRunner();
 
     async solve(instance: any, options: any): Promise<any> {
+        const debug = Boolean(options?.debug);
+        const solverName = String(options?.solver || this.DEFAULT_SOLVER_NAME);
+
         // 0. Best Practices Validation
         const violations = this.validateBestPractices(instance);
         if (violations.length > 0) {
@@ -18,7 +21,12 @@ export class Solver {
                     selection: null,
                     objective_value: null,
                     violations: violations
-                }
+                },
+                diagnostics: {
+                    stage: 'pre_validation',
+                    reason: 'best_practices_violations',
+                    violations_count: violations.length,
+                },
             });
         }
 
@@ -30,9 +38,20 @@ export class Solver {
         // The '-' argument tells minizinc to read data from stdin
         const modelPath = path.resolve(__dirname, '../model/composition.mzn');
 
-        const runResult = await this.runner.run(this.SOLVER_NAME, modelPath, dznContent, this.tmpDir);
+        const runResult = await this.runner.run(solverName, modelPath, dznContent, this.tmpDir);
         const timeSec = runResult.durationMs / 1000;
 
+        const diagnosticsBase = {
+            solver: solverName,
+            requested_solver: solverName,
+            model_path: modelPath,
+            duration_ms: runResult.durationMs,
+            exit_code: runResult.code,
+            stderr: this.truncateText(runResult.stderr),
+            stdout_tail: this.truncateText(runResult.stdout, 4000),
+            ...(debug ? { dzn: dznContent } : {}),
+        };
+
         if (runResult.code !== 0) {
             return {
                 solution: {
@@ -41,6 +60,11 @@ export class Solver {
                     objective_value: null,
                 },
                 violations: [{ message: `MiniZinc Error: ${runResult.stderr}`, code: 'solver_error' }],
+                diagnostics: {
+                    stage: 'solver_execution',
+                    reason: 'non_zero_exit',
+                    ...diagnosticsBase,
+                },
             };
         }
 
@@ -56,9 +80,14 @@ export class Solver {
                         objective_value: null,
                     },
                     provenance: {
-                        solver: this.SOLVER_NAME,
+                        solver: solverName,
                         time_sec: timeSec,
                     },
+                    diagnostics: {
+                        stage: 'solver_execution',
+                        reason: 'unsat_or_inconsistent',
+                        ...diagnosticsBase,
+                    },
                 };
             }
 
@@ -72,9 +101,14 @@ export class Solver {
                         objective_value: null,
                     },
                     provenance: {
-                        solver: this.SOLVER_NAME,
+                        solver: solverName,
                         time_sec: timeSec,
                     },
+                    diagnostics: {
+                        stage: 'parse_output',
+                        reason: 'json_not_found_in_stdout',
+                        ...diagnosticsBase,
+                    },
                 };
             }
 
@@ -131,9 +165,13 @@ export class Solver {
                     aggregated_features: aggregated_features,
                 },
                 provenance: {
-                    solver: this.SOLVER_NAME,
+                    solver: solverName,
                     time_sec: timeSec,
                 },
+                diagnostics: {
+                    stage: 'completed',
+                    ...diagnosticsBase,
+                },
             };
         } catch (e) {
             return {
@@ -143,10 +181,22 @@ export class Solver {
                     objective_value: null,
                 },
                 violations: [{ message: `Parse Error: ${e} \nOut: ${runResult.stdout}`, code: 'parser_error' }],
+                diagnostics: {
+                    stage: 'parse_output',
+                    reason: 'json_parse_error',
+                    error: String(e),
+                    ...diagnosticsBase,
+                },
             };
         }
     }
 
+    private truncateText(text: string, max = 12000): string {
+        if (!text) return '';
+        if (text.length <= max) return text;
+        return `${text.slice(0, max)}\n...[truncated ${text.length - max} chars]`;
+    }
+
     private computeRawAggregatedValues(instance: any, selection: Record<string, string>, features: string[]): Record<string, number> {
         // 1. Build a map of candidates for quick lookup
         const candidateMap: Record<string, any> = {};
@@ -269,7 +319,9 @@ export class Solver {
             });
         }
         return result;
-    } private validateBestPractices(instance: any): Array<Record<string, unknown>> {
+    }
+
+    private validateBestPractices(instance: any): Array<Record<string, unknown>> {
         const violations: Array<Record<string, unknown>> = [];
         const tasks = Array.isArray(instance.tasks) ? instance.tasks : [];
         const definedTaskIds = new Set<string>(
diff --git a/engines/random-search/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java b/engines/random-search/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java
index aa2df32..58ad882 100644
--- a/engines/random-search/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java
+++ b/engines/random-search/src/main/java/es/us/isa/qosawarewsbinding/api/Controller.java
@@ -15,16 +15,28 @@
 import es.us.isa.qosawarewsbinding.solution.QoSAwareWSCompositionSolution;
 
 import java.io.IOException;
-import java.io.InputStreamReader;
+import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.nio.charset.StandardCharsets;
+import java.io.ByteArrayOutputStream;
 import java.util.HashMap;
 import java.util.Map;
 
 public class Controller implements HttpHandler {
+    private static final long MAX_BODY_BYTES = 512L * 1024L * 1024L;
+    private static final String PAYLOAD_TOO_LARGE_MESSAGE =
+            "Request body is too large. Maximum allowed size is " + MAX_BODY_BYTES + " bytes.";
+
     private final Gson gson = new Gson();
 
+    private static class PayloadTooLargeException extends RuntimeException {
+        PayloadTooLargeException(String message) {
+            super(message);
+        }
+    }
+
     @Override
     public void handle(HttpExchange exchange) throws IOException {
         if (!"POST".equalsIgnoreCase(exchange.getRequestMethod())) {
@@ -33,7 +45,18 @@ public void handle(HttpExchange exchange) throws IOException {
         }
 
         try {
-            SolveRequest req = gson.fromJson(new InputStreamReader(exchange.getRequestBody()), SolveRequest.class);
+            String contentLength = exchange.getRequestHeaders().getFirst("Content-Length");
+            if (contentLength != null) {
+                try {
+                    if (Long.parseLong(contentLength) > MAX_BODY_BYTES) {
+                        throw new PayloadTooLargeException(PAYLOAD_TOO_LARGE_MESSAGE);
+                    }
+                } catch (NumberFormatException ignored) {
+                }
+            }
+
+            String requestBody = readBodyWithLimit(exchange.getRequestBody(), MAX_BODY_BYTES);
+            SolveRequest req = gson.fromJson(requestBody, SolveRequest.class);
             SolveResponse resp = process(req);
 
             String jsonResp = gson.toJson(resp);
@@ -48,6 +71,12 @@ public void handle(HttpExchange exchange) throws IOException {
             OutputStream os = exchange.getResponseBody();
             os.write(error.getBytes());
             os.close();
+        } catch (PayloadTooLargeException e) {
+            String error = "{\"error\": \"" + e.getMessage() + "\"}";
+            exchange.sendResponseHeaders(413, error.length());
+            OutputStream os = exchange.getResponseBody();
+            os.write(error.getBytes());
+            os.close();
         } catch (Exception e) {
             StringWriter sw = new StringWriter();
             PrintWriter pw = new PrintWriter(sw);
@@ -62,6 +91,23 @@ public void handle(HttpExchange exchange) throws IOException {
         }
     }
 
+    private String readBodyWithLimit(InputStream inputStream, long maxBytes) throws IOException {
+        ByteArrayOutputStream output = new ByteArrayOutputStream();
+        byte[] buffer = new byte[8192];
+        long total = 0;
+
+        int bytesRead;
+        while ((bytesRead = inputStream.read(buffer)) != -1) {
+            total += bytesRead;
+            if (total > maxBytes) {
+                throw new PayloadTooLargeException(PAYLOAD_TOO_LARGE_MESSAGE);
+            }
+            output.write(buffer, 0, bytesRead);
+        }
+
+        return new String(output.toByteArray(), StandardCharsets.UTF_8);
+    }
+
     private SolveResponse process(SolveRequest req) {
         ProblemBuilder builder = new ProblemBuilder();
         ProblemBuildResult mapped = builder.build(req);
diff --git a/experimentation/generator.py b/experimentation/generator.py
index c3ea6a5..358b982 100644
--- a/experimentation/generator.py
+++ b/experimentation/generator.py
@@ -5,7 +5,7 @@
 import random
 from datetime import datetime, timezone
 from pathlib import Path
-from typing import Any, Dict, Iterable, List, Sequence, Set, Tuple
+from typing import Any, Dict, Iterable, List, Optional, Sequence, Set, Tuple
 
 # Configuration (no CLI args; deterministic generation)
 ROOT_DIR = Path(__file__).resolve().parents[1]
@@ -21,9 +21,12 @@
     "zhang.json",
 ]
 
-TARGET_BINDING_SPACE = 1_000_000
+TARGET_BINDING_SPACE = 100_000_000
 EXTRA_FEATURES_PER_SCENARIO = 3
 EXTRA_PROVIDERS_PER_SCENARIO = 5
+MAX_HARD_ATTRIBUTE_BOUNDS_PER_INSTANCE = 2
+MAX_HARD_DEPENDENCIES_PER_INSTANCE = 2
+MAX_HARD_WITNESS_SEARCH_NODES = 20_000
 
 RANDOM_SEED = 12345
 
@@ -343,26 +346,174 @@ def ensure_min_candidates_per_task(
             )
 
 
+def _counts_by_task(instance: Dict[str, Any], tasks: Sequence[str]) -> Dict[str, int]:
+    counts: Dict[str, int] = {tid: 0 for tid in tasks}
+    for candidate in instance.get("candidates", []) or []:
+        tid = candidate.get("task_id")
+        if tid in counts:
+            counts[tid] += 1
+    return counts
+
+
+def _candidate_removal_rank(candidate: Dict[str, Any], task_id: str) -> Tuple[int, str]:
+    candidate_id = str(candidate.get("id", ""))
+    provider_id = str(candidate.get("provider_id", ""))
+    is_generated = candidate_id.startswith(f"{task_id}_gen_")
+    is_shared = provider_id == "p_gen_shared"
+
+    # Remove generated options first to preserve literature candidates when possible.
+    if is_generated and not is_shared:
+        return (3, candidate_id)
+    if is_generated and is_shared:
+        return (2, candidate_id)
+    if not is_generated and not is_shared:
+        return (1, candidate_id)
+    return (0, candidate_id)
+
+
+def _remove_one_candidate_from_task(instance: Dict[str, Any], task_id: str) -> bool:
+    candidates = instance.get("candidates", []) or []
+    task_positions = [
+        idx for idx, candidate in enumerate(candidates) if candidate.get("task_id") == task_id
+    ]
+    if len(task_positions) <= 1:
+        return False
+
+    removable = [
+        (idx, _candidate_removal_rank(candidates[idx], task_id)) for idx in task_positions
+    ]
+    remove_idx = max(removable, key=lambda item: item[1])[0]
+    del candidates[remove_idx]
+    return True
+
+
+def _add_one_candidate_to_task(
+    instance: Dict[str, Any], task_id: str, rng: random.Random
+) -> bool:
+    tasks = [t["id"] for t in instance.get("tasks", [])]
+    if task_id not in tasks:
+        return False
+
+    candidates = instance.setdefault("candidates", [])
+    fmap = _feature_map(instance)
+    used_candidate_ids = _id_set(candidates)
+
+    provider_ids = [p["id"] for p in instance.get("providers", [])]
+    if not provider_ids:
+        expand_providers(instance, EXTRA_PROVIDERS_PER_SCENARIO)
+        provider_ids = [p["id"] for p in instance.get("providers", [])]
+
+    shared_provider_id = "p_gen_shared"
+    providers_cycle = [pid for pid in provider_ids if pid != shared_provider_id]
+    if not providers_cycle:
+        providers_cycle = [shared_provider_id]
+
+    base = _candidate_template_for_task(instance, task_id)
+    provider_id = providers_cycle[len(used_candidate_ids) % len(providers_cycle)]
+    cid = _unique_id(f"{task_id}_gen_", used_candidate_ids)
+    candidates.append(
+        {
+            "id": cid,
+            "task_id": task_id,
+            "provider_id": provider_id,
+            "name": f"{base.get('name', task_id)} (Gen {provider_id})",
+            "features": _generate_feature_values_from_base(base.get("features", {}), fmap, rng),
+        }
+    )
+    return True
+
+
+def _trim_binding_space_to_target(
+    instance: Dict[str, Any], tasks: Sequence[str], target: int
+) -> None:
+    if target <= 0:
+        return
+
+    counts = _counts_by_task(instance, tasks)
+    if any(counts.get(task_id, 0) <= 0 for task_id in tasks):
+        return
+
+    current = 1
+    for task_id in tasks:
+        current *= counts[task_id]
+
+    while current > target:
+        selected_task: Optional[str] = None
+        selected_space: Optional[int] = None
+
+        for task_id in tasks:
+            count = counts.get(task_id, 0)
+            if count <= 1:
+                continue
+            next_space = (current // count) * (count - 1)
+            if next_space < target:
+                continue
+            if selected_space is None or next_space < selected_space:
+                selected_space = next_space
+                selected_task = task_id
+
+        if selected_task is None:
+            return
+        old_count = counts.get(selected_task, 0)
+        if old_count <= 1:
+            return
+        if not _remove_one_candidate_from_task(instance, selected_task):
+            return
+
+        counts[selected_task] = old_count - 1
+        current = (current // old_count) * (old_count - 1)
+
+
+def _grow_binding_space_to_target(
+    instance: Dict[str, Any], tasks: Sequence[str], target: int, rng: random.Random
+) -> None:
+    if target <= 0:
+        return
+
+    counts = _counts_by_task(instance, tasks)
+    if any(counts.get(task_id, 0) <= 0 for task_id in tasks):
+        return
+
+    current = 1
+    for task_id in tasks:
+        current *= counts[task_id]
+
+    while current < target:
+        selected_task: Optional[str] = None
+        selected_count: Optional[int] = None
+
+        for task_id in tasks:
+            count = counts.get(task_id, 0)
+            if count <= 0:
+                continue
+            if selected_count is None or count < selected_count or (
+                count == selected_count and task_id < (selected_task or "")
+            ):
+                selected_count = count
+                selected_task = task_id
+
+        if selected_task is None or selected_count is None or selected_count <= 0:
+            return
+        if not _add_one_candidate_to_task(instance, selected_task, rng):
+            return
+
+        counts[selected_task] = selected_count + 1
+        current = (current // selected_count) * (selected_count + 1)
+
+
 def ensure_binding_space_gt(instance: Dict[str, Any], target: int, rng: random.Random) -> None:
     tasks = [t["id"] for t in instance.get("tasks", [])]
     if not tasks:
         return
 
-    # Uniform lower bound per task keeps instances compact while guaranteeing product.
-    t = len(tasks)
-    min_per_task = int(math.ceil(target ** (1.0 / t)))
-    min_per_task = max(min_per_task, 2)
-    ensure_min_candidates_per_task(instance, min_per_task, rng)
-
-    # If still short due to uneven distributions, top-up deterministically.
-    while calculate_binding_space(instance) < target:
-        counts: Dict[str, int] = {tid: 0 for tid in tasks}
-        for c in instance.get("candidates", []):
-            tid = c.get("task_id")
-            if tid in counts:
-                counts[tid] += 1
-        tid_to_grow = min(counts.items(), key=lambda kv: (kv[1], kv[0]))[0]
-        ensure_min_candidates_per_task(instance, counts[tid_to_grow] + 1, rng)
+    # Keep SAME_PROVIDER constraints feasible while preserving at least one option per task.
+    ensure_min_candidates_per_task(instance, 1, rng)
+
+    # First reduce excessive spaces (when possible) without going below target.
+    _trim_binding_space_to_target(instance, tasks, target)
+
+    # Then grow minimally until the target is reached.
+    _grow_binding_space_to_target(instance, tasks, target, rng)
 
 def _quantile(values: Sequence[float], q: float) -> float:
     if not values:
@@ -589,42 +740,224 @@ def _build_fallback_binding(instance: Dict[str, Any]) -> Dict[str, str]:
         chosen = shared or options[0]
         binding[task_id] = str(chosen["id"])
 
-    if len(tasks) >= 3:
-        pivot = tasks[-1]
-        options = by_task.get(pivot, [])
-        current = binding.get(pivot)
-        current_provider = None
-        if current is not None:
-            current_provider = str(_candidate_lookup(instance).get(current, {}).get("provider_id", ""))
-        alternative = next(
-            (c for c in options if str(c.get("provider_id", "")) != current_provider),
-            None,
-        )
-        if alternative is not None:
-            binding[pivot] = str(alternative["id"])
-
     return binding
 
 
-def _find_hard_feasible_binding(instance: Dict[str, Any], rng: random.Random, attempts: int = 4000) -> Dict[str, str]:
+def _candidate_satisfies_local_hard_bounds(
+    candidate: Dict[str, Any],
+    local_bounds: Sequence[Tuple[str, str, float]],
+) -> bool:
+    feats = candidate.get("features", {}) or {}
+    for attr_id, op, rhs in local_bounds:
+        value = feats.get(attr_id)
+        if not isinstance(value, (int, float)):
+            return False
+        if not _check_bound(float(value), op, rhs):
+            return False
+    return True
+
+
+def _same_provider_group_index(
+    tasks: Sequence[str],
+    constraints: Sequence[Dict[str, Any]],
+) -> Dict[str, str]:
+    parent: Dict[str, str] = {task_id: task_id for task_id in tasks}
+
+    def find(task_id: str) -> str:
+        while parent[task_id] != task_id:
+            parent[task_id] = parent[parent[task_id]]
+            task_id = parent[task_id]
+        return task_id
+
+    def union(a: str, b: str) -> None:
+        ra = find(a)
+        rb = find(b)
+        if ra != rb:
+            parent[rb] = ra
+
+    task_set = set(tasks)
+    for constraint in constraints:
+        kind = str(constraint.get("kind", "")).upper()
+        dep_type = str(constraint.get("type", "")).upper()
+        if kind != "DEPENDENCY" or dep_type != "SAME_PROVIDER":
+            continue
+        dep_tasks = [t for t in (constraint.get("tasks", []) or []) if t in task_set]
+        if len(dep_tasks) < 2:
+            continue
+        first = dep_tasks[0]
+        for task_id in dep_tasks[1:]:
+            union(first, task_id)
+
+    return {task_id: find(task_id) for task_id in tasks}
+
+
+def _different_provider_pairs(
+    tasks: Sequence[str],
+    constraints: Sequence[Dict[str, Any]],
+) -> Set[Tuple[str, str]]:
+    task_set = set(tasks)
+    pairs: Set[Tuple[str, str]] = set()
+
+    for constraint in constraints:
+        kind = str(constraint.get("kind", "")).upper()
+        dep_type = str(constraint.get("type", "")).upper()
+        if kind != "DEPENDENCY" or dep_type != "DIFFERENT_PROVIDER":
+            continue
+        dep_tasks = sorted({t for t in (constraint.get("tasks", []) or []) if t in task_set})
+        if len(dep_tasks) < 2:
+            continue
+        for a, b in itertools.combinations(dep_tasks, 2):
+            pairs.add((a, b) if a < b else (b, a))
+
+    return pairs
+
+
+def _find_hard_feasible_binding(instance: Dict[str, Any]) -> Dict[str, str]:
     tasks = [t["id"] for t in instance.get("tasks", [])]
     by_task = _candidates_by_task(instance)
-    if any(not by_task.get(tid) for tid in tasks):
+    if not tasks or any(not by_task.get(tid) for tid in tasks):
         return {}
 
+    hard_constraints = [c for c in (instance.get("constraints", []) or []) if c.get("hard", True)]
+    local_bounds_by_task: Dict[str, List[Tuple[str, str, float]]] = {task_id: [] for task_id in tasks}
+    for constraint in hard_constraints:
+        if str(constraint.get("kind", "")).upper() != "ATTRIBUTE_BOUND":
+            continue
+        if str(constraint.get("scope", "GLOBAL")).upper() != "LOCAL":
+            continue
+        attr_id = constraint.get("attribute_id")
+        op = constraint.get("op")
+        value = constraint.get("value")
+        if not attr_id or not isinstance(value, (int, float)):
+            continue
+        rhs = float(value)
+        for task_id in (constraint.get("tasks", []) or []):
+            if task_id in local_bounds_by_task:
+                local_bounds_by_task[task_id].append((str(attr_id), str(op), rhs))
+
+    domains: Dict[str, List[Dict[str, Any]]] = {}
+    for task_id in tasks:
+        filtered = [
+            cand
+            for cand in by_task.get(task_id, [])
+            if _candidate_satisfies_local_hard_bounds(cand, local_bounds_by_task[task_id])
+        ]
+        if not filtered:
+            return {}
+        domains[task_id] = filtered
+
+    same_group_by_task = _same_provider_group_index(tasks, hard_constraints)
+    different_pairs = _different_provider_pairs(tasks, hard_constraints)
     fallback = _build_fallback_binding(instance)
     if fallback and _binding_satisfies_hard_constraints(instance, fallback):
         return fallback
 
-    for _ in range(attempts):
-        binding = {
-            task_id: str(rng.choice(by_task[task_id])["id"])
-            for task_id in tasks
-        }
-        if _binding_satisfies_hard_constraints(instance, binding):
-            return binding
+    assigned_provider_by_task: Dict[str, str] = {}
+    assigned_group_provider: Dict[str, str] = {}
+    binding: Dict[str, str] = {}
+
+    def is_provider_compatible(task_id: str, provider_id: str) -> bool:
+        same_group = same_group_by_task[task_id]
+        required_provider = assigned_group_provider.get(same_group)
+        if required_provider is not None and required_provider != provider_id:
+            return False
+
+        for other_task_id, other_provider in assigned_provider_by_task.items():
+            pair = (
+                (task_id, other_task_id)
+                if task_id < other_task_id
+                else (other_task_id, task_id)
+            )
+            if pair in different_pairs and other_provider == provider_id:
+                return False
+        return True
+
+    def has_future_support() -> bool:
+        for task_id in tasks:
+            if task_id in binding:
+                continue
+            feasible = False
+            for cand in domains[task_id]:
+                provider_id = str(cand.get("provider_id", ""))
+                if is_provider_compatible(task_id, provider_id):
+                    feasible = True
+                    break
+            if not feasible:
+                return False
+        return True
+
+    def compatible_candidates(task_id: str) -> List[Dict[str, Any]]:
+        compatible: List[Dict[str, Any]] = []
+        for cand in domains[task_id]:
+            provider_id = str(cand.get("provider_id", ""))
+            if is_provider_compatible(task_id, provider_id):
+                compatible.append(cand)
+        return compatible
+
+    explored_nodes = 0
+
+    def backtrack() -> bool:
+        nonlocal explored_nodes
+        explored_nodes += 1
+        if explored_nodes > MAX_HARD_WITNESS_SEARCH_NODES:
+            return False
+
+        if len(binding) >= len(tasks):
+            return _binding_satisfies_hard_constraints(instance, binding)
+
+        unassigned = [task_id for task_id in tasks if task_id not in binding]
+        best_task: Optional[str] = None
+        best_candidates: Optional[List[Dict[str, Any]]] = None
+
+        for task_id in unassigned:
+            compatible = compatible_candidates(task_id)
+            if not compatible:
+                return False
+            if best_candidates is None:
+                best_task = task_id
+                best_candidates = compatible
+                continue
+
+            if len(compatible) < len(best_candidates):
+                best_task = task_id
+                best_candidates = compatible
+            elif len(compatible) == len(best_candidates):
+                if (len(domains[task_id]), task_id) < (len(domains[best_task]), best_task):
+                    best_task = task_id
+                    best_candidates = compatible
+
+        if best_task is None or best_candidates is None:
+            return False
+
+        task_id = best_task
+        same_group = same_group_by_task[task_id]
+        previous_group_provider = assigned_group_provider.get(same_group)
+
+        for cand in best_candidates:
+            candidate_id = str(cand.get("id", ""))
+            provider_id = str(cand.get("provider_id", ""))
+            if not candidate_id or not provider_id:
+                continue
 
-    return fallback
+            binding[task_id] = candidate_id
+            assigned_provider_by_task[task_id] = provider_id
+            if previous_group_provider is None:
+                assigned_group_provider[same_group] = provider_id
+
+            if has_future_support() and backtrack():
+                return True
+
+            del binding[task_id]
+            del assigned_provider_by_task[task_id]
+            if previous_group_provider is None:
+                assigned_group_provider.pop(same_group, None)
+
+        return False
+
+    if backtrack():
+        return dict(binding)
+
+    return {}
 
 
 def _find_same_provider_tasks(binding: Dict[str, str], instance: Dict[str, Any]) -> List[str]:
@@ -665,9 +998,94 @@ def _pick_attribute_for_constraints(feature_defs: List[Dict[str, Any]]) -> str:
     return feature_defs[0]["id"]
 
 
-def generate_additional_constraints(
-    instance: Dict[str, Any], hard: bool, rng: random.Random
-) -> List[Dict[str, Any]]:
+def _value_precision(mx: float) -> int:
+    return 6 if mx <= 1.0 else 2
+
+
+def _slack_amount(mn: float, mx: float) -> float:
+    span = max(0.0, mx - mn)
+    if span <= 0.0:
+        return 0.0
+    if span <= 1.0:
+        return max(1e-6, 0.02 * span)
+    return max(0.01, 0.005 * span)
+
+
+def _relaxed_bound(value: float, direction: str, mn: float, mx: float) -> float:
+    delta = _slack_amount(mn, mx)
+    if direction == "MAXIMIZE":
+        return _clamp(value - delta, mn, mx)
+    return _clamp(value + delta, mn, mx)
+
+
+def _pick_local_task_and_attribute(
+    binding: Dict[str, str],
+    instance: Dict[str, Any],
+) -> Tuple[str, str]:
+    by_id = _candidate_lookup(instance)
+    by_task = _candidates_by_task(instance)
+    fmap = _feature_map(instance)
+
+    best_choice: Optional[Tuple[float, str, str]] = None
+    fallback_task = sorted(binding.keys())[0]
+    fallback_attr = sorted(fmap.keys())[0]
+
+    for task_id in sorted(binding.keys()):
+        selected = by_id.get(binding[task_id], {})
+        selected_feats = selected.get("features", {}) or {}
+        task_candidates = by_task.get(task_id, [])
+        if not task_candidates:
+            continue
+
+        for attr in sorted(fmap.keys()):
+            if attr not in selected_feats:
+                continue
+            sval = selected_feats.get(attr)
+            if not isinstance(sval, (int, float)):
+                continue
+
+            fdef = fmap[attr]
+            direction = str(fdef.get("direction", "MINIMIZE"))
+            mn, mx = _range_for_feature(fdef)
+            bound = _relaxed_bound(float(sval), direction, mn, mx)
+
+            sat = 0
+            total = 0
+            for cand in task_candidates:
+                cval = (cand.get("features", {}) or {}).get(attr)
+                if not isinstance(cval, (int, float)):
+                    continue
+                total += 1
+                if direction == "MAXIMIZE":
+                    sat += 1 if float(cval) >= bound else 0
+                else:
+                    sat += 1 if float(cval) <= bound else 0
+
+            if total == 0:
+                continue
+
+            ratio = sat / total
+            if 0.2 <= ratio <= 0.8:
+                score = abs(0.5 - ratio)
+                if best_choice is None or score < best_choice[0]:
+                    best_choice = (score, task_id, attr)
+
+            if task_id == fallback_task and attr == fallback_attr:
+                continue
+            if best_choice is None:
+                score = abs(0.5 - ratio)
+                fallback_task = task_id
+                fallback_attr = attr
+                best_choice = (score + 10.0, task_id, attr)
+
+    if best_choice is not None:
+        return best_choice[1], best_choice[2]
+    return fallback_task, fallback_attr
+
+
+def _generate_additional_constraints_with_witness(
+    instance: Dict[str, Any], hard: bool
+) -> Tuple[List[Dict[str, Any]], Dict[str, str]]:
     """Add schema-consistent constraints that are feasible by construction.
 
     We first obtain a witness binding that satisfies all *existing hard* constraints,
@@ -677,16 +1095,16 @@ def generate_additional_constraints(
     tasks = [t["id"] for t in instance.get("tasks", [])]
     feature_defs = instance.get("features", [])
     if not tasks or not feature_defs:
-        return []
+        return [], {}
 
     existing_ids = _id_set(instance.get("constraints", []))
     fmap = _feature_map(instance)
     by_id = _candidate_lookup(instance)
     constraints: List[Dict[str, Any]] = []
 
-    binding = _find_hard_feasible_binding(instance, rng)
+    binding = _find_hard_feasible_binding(instance)
     if not binding:
-        return constraints
+        return constraints, {}
 
     aggregated = _compute_aggregated_qos(instance, binding)
 
@@ -696,6 +1114,7 @@ def generate_additional_constraints(
     gdir = str(gdef.get("direction", "MINIMIZE"))
     gvalue = float(aggregated.get(global_attr, 0.0))
     gmn, gmx = _range_for_feature(gdef)
+    gbound = _relaxed_bound(gvalue, gdir, gmn, gmx)
     constraints.append(
         {
             "id": _unique_id(f"gen_c_global_{global_attr}_", existing_ids),
@@ -703,20 +1122,20 @@ def generate_additional_constraints(
             "scope": "GLOBAL",
             "attribute_id": global_attr,
             "op": "<=" if gdir == "MINIMIZE" else ">=",
-            "value": round(gvalue, 6 if gmx <= 1.0 else 2),
+            "value": round(gbound, _value_precision(gmx)),
             "hard": hard,
         }
     )
 
     # 2) LOCAL ATTRIBUTE_BOUND from witness selected candidate feature.
-    local_task = sorted(binding.keys())[0]
-    local_attr = feature_defs[min(1, len(feature_defs) - 1)]["id"]
+    local_task, local_attr = _pick_local_task_and_attribute(binding, instance)
     ldef = fmap[local_attr]
     ldir = str(ldef.get("direction", "MINIMIZE"))
     selected_cand = by_id.get(binding[local_task], {})
     lraw = float((selected_cand.get("features", {}) or {}).get(local_attr, 0.0))
     lmn, lmx = _range_for_feature(ldef)
     lvalue = _clamp(lraw, lmn, lmx) if lmn <= lmx else lraw
+    lbound = _relaxed_bound(lvalue, ldir, lmn, lmx)
     constraints.append(
         {
             "id": _unique_id(f"gen_c_local_{local_task}_{local_attr}_", existing_ids),
@@ -725,7 +1144,7 @@ def generate_additional_constraints(
             "tasks": [local_task],
             "attribute_id": local_attr,
             "op": "<=" if ldir == "MINIMIZE" else ">=",
-            "value": round(lvalue, 6 if lmx <= 1.0 else 2),
+            "value": round(lbound, _value_precision(lmx)),
             "hard": hard,
         }
     )
@@ -756,8 +1175,67 @@ def generate_additional_constraints(
             }
         )
 
+    return constraints, binding
+
+
+def generate_additional_constraints(
+    instance: Dict[str, Any], hard: bool
+) -> List[Dict[str, Any]]:
+    constraints, _ = _generate_additional_constraints_with_witness(instance, hard)
     return constraints
 
+
+def _constraint_kind_family(constraint: Dict[str, Any]) -> str:
+    kind = str(constraint.get("kind", "")).upper()
+    if kind == "ATTRIBUTE_BOUND":
+        return "attribute_bound"
+    if kind == "DEPENDENCY":
+        return "dependency"
+    return "other"
+
+
+def _count_constraints_by_family(constraints: Sequence[Dict[str, Any]]) -> Dict[str, int]:
+    counts = {"attribute_bound": 0, "dependency": 0, "other": 0}
+    for constraint in constraints:
+        family = _constraint_kind_family(constraint)
+        counts[family] = counts.get(family, 0) + 1
+    return counts
+
+
+def _select_additional_constraints_for_hard_variant(
+    base_constraints: Sequence[Dict[str, Any]],
+    generated_constraints: Sequence[Dict[str, Any]],
+) -> List[Dict[str, Any]]:
+    """Select generated constraints so hard variants stay within configured caps.
+
+    Base constraints are preserved as-is. Caps apply to how many *new* constraints
+    are accepted for each family, based on remaining slots after base constraints.
+    """
+
+    base_counts = _count_constraints_by_family(base_constraints)
+    max_by_family = {
+        "attribute_bound": MAX_HARD_ATTRIBUTE_BOUNDS_PER_INSTANCE,
+        "dependency": MAX_HARD_DEPENDENCIES_PER_INSTANCE,
+    }
+    remaining_slots = {
+        family: max(0, max_allowed - base_counts.get(family, 0))
+        for family, max_allowed in max_by_family.items()
+    }
+
+    selected: List[Dict[str, Any]] = []
+    selected_counts = {"attribute_bound": 0, "dependency": 0}
+
+    for constraint in generated_constraints:
+        family = _constraint_kind_family(constraint)
+        if family not in remaining_slots:
+            continue
+        if selected_counts[family] >= remaining_slots[family]:
+            continue
+        selected.append(copy.deepcopy(constraint))
+        selected_counts[family] += 1
+
+    return selected
+
 def _normalize_weights_2dp_sum1(targets: List[str], raw_weights: Dict[str, float]) -> Dict[str, float]:
     if not targets: return {}
     values = [max(float(raw_weights.get(t, 0.0)), 0.0) for t in targets]
@@ -831,6 +1309,43 @@ def _objective_many(all_features: List[str]) -> Dict[str, Any]:
     }
 
 
+def _expected_behavior_by_engine(objective_type: str, hard_constraints: bool) -> Dict[str, str]:
+    objective = str(objective_type).upper()
+
+    if objective == "MANY":
+        return {
+            "many-heuristic": "ANY_COMPLETED",
+            "minizinc-csp": "VALIDATION_ERROR",
+            "random-search": "VALIDATION_ERROR",
+        }
+
+    if objective == "MONO":
+        if hard_constraints:
+            return {
+                "many-heuristic": "VALIDATION_ERROR",
+                "minizinc-csp": "FEASIBLE",
+                "random-search": "ANY_COMPLETED",
+            }
+        return {
+            "many-heuristic": "VALIDATION_ERROR",
+            "minizinc-csp": "VALIDATION_ERROR",
+            "random-search": "ANY_COMPLETED",
+        }
+
+    if objective == "MULTI":
+        return {
+            "many-heuristic": "VALIDATION_ERROR",
+            "minizinc-csp": "VALIDATION_ERROR",
+            "random-search": "VALIDATION_ERROR",
+        }
+
+    return {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR",
+    }
+
+
 def _now_iso() -> str:
     return datetime.now(timezone.utc).replace(microsecond=0).isoformat().replace("+00:00", "Z")
 
@@ -869,15 +1384,87 @@ def build_variant(
     inst = copy.deepcopy(base_scaled)
     inst["objective"] = objective
 
-    # Add additional constraints (hard first); then soften if needed.
-    rng = random.Random(_seed_for(base_scaled["metadata"]["id"], variant_suffix, "constraints"))
-    additional = generate_additional_constraints(inst, hard=True, rng=rng)
-    inst_constraints = list(inst.get("constraints", [])) + additional
+    base_constraints = list(inst.get("constraints", []))
+    objective_type = str((objective or {}).get("type", "")).upper()
+    used_unconstrained_fallback = False
 
     if hard_constraints:
-        inst["constraints"] = inst_constraints
+        hardened: Optional[List[Dict[str, Any]]] = None
+
+        additional, witness = _generate_additional_constraints_with_witness(inst, hard=True)
+        limited_additional = _select_additional_constraints_for_hard_variant(
+            base_constraints,
+            additional,
+        )
+        inst_constraints = base_constraints + limited_additional
+
+        candidate_hardened: List[Dict[str, Any]] = []
+        for c in inst_constraints:
+            c2 = copy.deepcopy(c)
+            c2["hard"] = True
+            candidate_hardened.append(c2)
+
+        if witness:
+            candidate = copy.deepcopy(inst)
+            candidate["constraints"] = candidate_hardened
+            if _binding_satisfies_hard_constraints(candidate, witness):
+                hardened = candidate_hardened
+
+        if not hardened:
+            candidate = copy.deepcopy(inst)
+            candidate["constraints"] = candidate_hardened
+            certified_witness = _find_hard_feasible_binding(candidate)
+            if certified_witness:
+                hardened = candidate_hardened
+
+        if not hardened:
+            unconstrained_base = copy.deepcopy(inst)
+            unconstrained_base["constraints"] = []
+
+            additional, witness = _generate_additional_constraints_with_witness(
+                unconstrained_base,
+                hard=True,
+            )
+            limited_additional = _select_additional_constraints_for_hard_variant(
+                [],
+                additional,
+            )
+            inst_constraints = list(limited_additional)
+
+            candidate_hardened = []
+            for c in inst_constraints:
+                c2 = copy.deepcopy(c)
+                c2["hard"] = True
+                candidate_hardened.append(c2)
+
+            if witness:
+                candidate = copy.deepcopy(unconstrained_base)
+                candidate["constraints"] = candidate_hardened
+                if _binding_satisfies_hard_constraints(candidate, witness):
+                    hardened = candidate_hardened
+                    used_unconstrained_fallback = True
+
+            if not hardened:
+                candidate = copy.deepcopy(unconstrained_base)
+                candidate["constraints"] = candidate_hardened
+                certified_witness = _find_hard_feasible_binding(candidate)
+                if certified_witness:
+                    hardened = candidate_hardened
+                    used_unconstrained_fallback = True
+
+        if not hardened:
+            raise RuntimeError(
+                "Could not certify hard-feasible variant with deterministic search "
+                f"(primary + unconstrained fallback): {base_scaled['metadata']['id']}::{variant_suffix}"
+            )
+
+        inst["constraints"] = hardened
+        if any(c.get("hard", True) is False for c in inst["constraints"]):
+            raise ValueError("Hard variant contains soft constraints after hardening")
         constraint_mode = "hard"
     else:
+        additional = generate_additional_constraints(inst, hard=True)
+        inst_constraints = base_constraints + additional
         softened: List[Dict[str, Any]] = []
         for c in inst_constraints:
             c2 = copy.deepcopy(c)
@@ -893,8 +1480,18 @@ def build_variant(
     inst["metadata"]["name"] = f"{inst['metadata'].get('name', base_id)} [{variant_suffix}, {constraint_mode}]"
     inst["metadata"]["created_at"] = _now_iso()
 
+    experiments_meta = inst["metadata"].setdefault("experiments", {})
+    experiments_meta["expected_feasibility_by_engine"] = _expected_behavior_by_engine(
+        objective_type=objective_type,
+        hard_constraints=hard_constraints,
+    )
+    if hard_constraints:
+        experiments_meta["hard_feasible_witness_found"] = True
+        experiments_meta["hard_constraints_from_unconstrained_fallback"] = used_unconstrained_fallback
+
     return inst
 
+
 def main():
     output_dir = DEFAULT_OUTPUT_DIR
     output_dir.mkdir(parents=True, exist_ok=True)
@@ -942,5 +1539,6 @@ def main():
             )
             save_instance(inst_soft, output_dir, f"{base_id}_{variant_name}_soft.json")
 
+
 if __name__ == "__main__":
     main()
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json
index b636c62..fcf8031 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json
@@ -3,13 +3,22 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_many_hard",
     "name": "Travel Solution (Benatallah et al. 2002) [many, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -434,21 +443,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +471,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +485,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +513,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +541,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +569,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +583,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +597,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +681,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +709,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +723,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +779,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +793,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +835,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +849,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
-        "latency_ms": 435.3,
-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +877,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
-        "latency_ms": 438.16,
-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +919,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 418.07,
-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +933,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 312.13,
-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +947,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
+      "name": "ABS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 313.91,
-        "cost_usd": 257.49,
-        "availability": 0.98681,
+        "latency_ms": 435.43,
+        "cost_usd": 940.83,
+        "availability": 0.988804,
         "gen_feat_1": 512.87,
         "gen_feat_2": 0.505241,
         "gen_feat_3": 507.29
       }
     },
     {
-      "id": "t_car_rental_booking_gen_4",
-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 302.5,
-        "cost_usd": 253.26,
-        "availability": 0.988174,
+        "latency_ms": 175.64,
+        "cost_usd": 0.0,
+        "availability": 0.993164,
         "gen_feat_1": 486.1,
         "gen_feat_2": 0.485054,
         "gen_feat_3": 503.99
       }
     },
     {
-      "id": "t_car_rental_booking_gen_5",
+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,83 +989,1063 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_6",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_domestic_gen_8",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
-      "name": "CRS.booking (Gen p_ins_a)",
+      "name": "DFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 315.37,
-        "cost_usd": 257.45,
-        "availability": 0.991843,
+        "latency_ms": 661.27,
+        "cost_usd": 415.88,
+        "availability": 0.986834,
         "gen_feat_1": 510.59,
         "gen_feat_2": 0.501464,
         "gen_feat_3": 495.6
       }
     },
     {
-      "id": "t_car_rental_booking_gen_7",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
-      "name": "CRS.booking (Gen p_ins_b)",
+      "name": "IFBS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 311.72,
-        "cost_usd": 255.51,
-        "availability": 0.984838,
+        "latency_ms": 784.34,
+        "cost_usd": 805.83,
+        "availability": 0.97489,
         "gen_feat_1": 498.99,
         "gen_feat_2": 0.505672,
         "gen_feat_3": 506.54
       }
     },
     {
-      "id": "t_car_rental_booking_gen_8",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_8",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_hotel_a",
-      "name": "CRS.booking (Gen p_hotel_a)",
+      "name": "TIS.getInsurance (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 306.59,
-        "cost_usd": 258.27,
+        "latency_ms": 237.36,
+        "cost_usd": 54.63,
         "availability": 1.0,
         "gen_feat_1": 512.19,
         "gen_feat_2": 0.506375,
         "gen_feat_3": 513.91
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_parallel",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_as",
-              "kind": "TASK",
-              "task_id": "t_attractions_search"
-            },
-            {
-              "id": "n_booking_flow",
-              "kind": "SEQ",
-              "children": [
-                {
-                  "id": "n_flight_choice",
-                  "kind": "XOR",
-                  "branches": [
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-                      "p": 0.6,
-                      "child": {
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-                        "kind": "TASK",
-                        "task_id": "t_flight_booking_domestic"
-                      }
-                    },
-                    {
-                      "p": 0.4,
-                      "child": {
-                        "id": "n_intl_seq",
+    },
+    {
+      "id": "t_accommodation_booking_gen_9",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_hotel_b",
+      "name": "ABS.booking (Gen p_hotel_b)",
+      "features": {
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+        "cost_usd": 950.2,
+        "availability": 1.0,
+        "gen_feat_1": 500.26,
+        "gen_feat_2": 0.490031,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_9",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_a",
+      "name": "ASS.getAttractions (Gen p_car_a)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.978629,
+        "gen_feat_1": 513.17,
+        "gen_feat_2": 0.485635,
+        "gen_feat_3": 501.55
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_9",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_car_b",
+      "name": "CRS.booking (Gen p_car_b)",
+      "features": {
+        "latency_ms": 312.7,
+        "cost_usd": 254.45,
+        "availability": 0.983777,
+        "gen_feat_1": 494.52,
+        "gen_feat_2": 0.498931,
+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_9",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_1",
+      "name": "DFBS.booking (Gen p_gen_1)",
+      "features": {
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+        "cost_usd": 408.12,
+        "availability": 0.962641,
+        "gen_feat_1": 488.3,
+        "gen_feat_2": 0.490801,
+        "gen_feat_3": 512.68
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_9",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_2",
+      "name": "IFBS.booking (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 811.18,
+        "availability": 0.964168,
+        "gen_feat_1": 504.72,
+        "gen_feat_2": 0.513448,
+        "gen_feat_3": 486.86
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_9",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_3",
+      "name": "TIS.getInsurance (Gen p_gen_3)",
+      "features": {
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+        "cost_usd": 54.72,
+        "availability": 1.0,
+        "gen_feat_1": 496.15,
+        "gen_feat_2": 0.510147,
+        "gen_feat_3": 496.27
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_10",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_4",
+      "name": "ABS.booking (Gen p_gen_4)",
+      "features": {
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+        "cost_usd": 962.33,
+        "availability": 0.984144,
+        "gen_feat_1": 505.48,
+        "gen_feat_2": 0.506446,
+        "gen_feat_3": 504.14
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_10",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_5",
+      "name": "ASS.getAttractions (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_1": 513.87,
+        "gen_feat_2": 0.508852,
+        "gen_feat_3": 498.33
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_10",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_attractions_a",
+      "name": "CRS.booking (Gen p_attractions_a)",
+      "features": {
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+        "cost_usd": 258.56,
+        "availability": 0.969217,
+        "gen_feat_1": 486.85,
+        "gen_feat_2": 0.486823,
+        "gen_feat_3": 506.8
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_10",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_attractions_b",
+      "name": "DFBS.booking (Gen p_attractions_b)",
+      "features": {
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+        "cost_usd": 410.81,
+        "availability": 0.961011,
+        "gen_feat_1": 511.46,
+        "gen_feat_2": 0.495467,
+        "gen_feat_3": 485.55
+      }
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+        "latency_ms": 244.35,
+        "cost_usd": 54.3,
+        "availability": 1.0,
+        "gen_feat_1": 509.04,
+        "gen_feat_2": 0.491957,
+        "gen_feat_3": 514.08
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_18",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_1",
+      "name": "ABS.booking (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 425.28,
+        "cost_usd": 931.27,
+        "availability": 1.0,
+        "gen_feat_1": 491.34,
+        "gen_feat_2": 0.506838,
+        "gen_feat_3": 503.82
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_18",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_2",
+      "name": "ASS.getAttractions (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 178.98,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 496.47,
+        "gen_feat_2": 0.49141,
+        "gen_feat_3": 504.43
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_18",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_gen_3",
+      "name": "CRS.booking (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 300.88,
+        "cost_usd": 252.33,
+        "availability": 0.997123,
+        "gen_feat_1": 507.95,
+        "gen_feat_2": 0.498887,
+        "gen_feat_3": 510.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_18",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_4",
+      "name": "DFBS.booking (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 664.94,
+        "cost_usd": 410.68,
+        "availability": 0.965359,
+        "gen_feat_1": 496.32,
+        "gen_feat_2": 0.502946,
+        "gen_feat_3": 495.99
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_18",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_5",
+      "name": "IFBS.booking (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 794.12,
+        "cost_usd": 836.67,
+        "availability": 0.985896,
+        "gen_feat_1": 488.16,
+        "gen_feat_2": 0.499944,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_18",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_attractions_a",
+      "name": "TIS.getInsurance (Gen p_attractions_a)",
+      "features": {
+        "latency_ms": 244.5,
+        "cost_usd": 54.49,
+        "availability": 0.987127,
+        "gen_feat_1": 505.73,
+        "gen_feat_2": 0.498489,
+        "gen_feat_3": 496.34
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_19",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_attractions_b",
+      "name": "ABS.booking (Gen p_attractions_b)",
+      "features": {
+        "latency_ms": 438.83,
+        "cost_usd": 921.73,
+        "availability": 0.99889,
+        "gen_feat_1": 497.17,
+        "gen_feat_2": 0.493454,
+        "gen_feat_3": 485.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_19",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_dom_air_a",
+      "name": "ASS.getAttractions (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 179.09,
+        "cost_usd": 0.0,
+        "availability": 0.976492,
+        "gen_feat_1": 497.73,
+        "gen_feat_2": 0.498348,
+        "gen_feat_3": 496.99
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_19",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_b",
+      "name": "CRS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 316.42,
+        "cost_usd": 262.02,
+        "availability": 0.991599,
+        "gen_feat_1": 489.15,
+        "gen_feat_2": 0.498115,
+        "gen_feat_3": 485.99
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_19",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_int_air_a",
+      "name": "DFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 667.0,
+        "cost_usd": 413.25,
+        "availability": 0.962466,
+        "gen_feat_1": 513.82,
+        "gen_feat_2": 0.503379,
+        "gen_feat_3": 509.66
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_19",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_b",
+      "name": "IFBS.booking (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 758.34,
+        "cost_usd": 834.24,
+        "availability": 0.969654,
+        "gen_feat_1": 491.8,
+        "gen_feat_2": 0.508679,
+        "gen_feat_3": 487.73
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_19",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_ins_a",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 237.08,
+        "cost_usd": 56.6,
+        "availability": 1.0,
+        "gen_feat_1": 492.29,
+        "gen_feat_2": 0.511799,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_20",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_b",
+      "name": "ABS.booking (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 420.13,
+        "cost_usd": 956.38,
+        "availability": 0.993592,
+        "gen_feat_1": 495.98,
+        "gen_feat_2": 0.505424,
+        "gen_feat_3": 514.02
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_20",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_hotel_a",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 182.4,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.3,
+        "gen_feat_2": 0.494928,
+        "gen_feat_3": 505.76
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_20",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_b",
+      "name": "CRS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 319.09,
+        "cost_usd": 255.7,
+        "availability": 1.0,
+        "gen_feat_1": 488.78,
+        "gen_feat_2": 0.508927,
+        "gen_feat_3": 505.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 649.56,
+        "cost_usd": 413.08,
+        "availability": 0.98686,
+        "gen_feat_1": 504.29,
+        "gen_feat_2": 0.485327,
+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
+                  "branches": [
+                    {
+                      "p": 0.6,
+                      "child": {
+                        "id": "n_dfb",
+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
+                      }
+                    },
+                    {
+                      "p": 0.4,
+                      "child": {
+                        "id": "n_intl_seq",
                         "kind": "SEQ",
                         "children": [
                           {
@@ -1239,19 +2228,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_accommodation_booking_cost_usd_1",
+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": true
     },
     {
@@ -1263,16 +2252,6 @@
         "t_attractions_search"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json
index 3be7c54..996b8db 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json
@@ -3,13 +3,20 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_many_soft",
     "name": "Travel Solution (Benatallah et al. 2002) [many, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -434,21 +441,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +469,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +483,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +511,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +539,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +567,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +581,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +595,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +679,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +707,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +721,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +777,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +791,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +833,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +847,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
-        "latency_ms": 435.3,
-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +875,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
-        "latency_ms": 438.16,
-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +917,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 418.07,
-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +931,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 312.13,
-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +945,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
+      "name": "ABS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 313.91,
-        "cost_usd": 257.49,
-        "availability": 0.98681,
+        "latency_ms": 435.43,
+        "cost_usd": 940.83,
+        "availability": 0.988804,
         "gen_feat_1": 512.87,
         "gen_feat_2": 0.505241,
         "gen_feat_3": 507.29
       }
     },
     {
-      "id": "t_car_rental_booking_gen_4",
-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 302.5,
-        "cost_usd": 253.26,
-        "availability": 0.988174,
+        "latency_ms": 175.64,
+        "cost_usd": 0.0,
+        "availability": 0.993164,
         "gen_feat_1": 486.1,
         "gen_feat_2": 0.485054,
         "gen_feat_3": 503.99
       }
     },
     {
-      "id": "t_car_rental_booking_gen_5",
+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,82 +987,1062 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_6",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_domestic_gen_8",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
-      "name": "CRS.booking (Gen p_ins_a)",
+      "name": "DFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 315.37,
-        "cost_usd": 257.45,
-        "availability": 0.991843,
+        "latency_ms": 661.27,
+        "cost_usd": 415.88,
+        "availability": 0.986834,
         "gen_feat_1": 510.59,
         "gen_feat_2": 0.501464,
         "gen_feat_3": 495.6
       }
     },
     {
-      "id": "t_car_rental_booking_gen_7",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
-      "name": "CRS.booking (Gen p_ins_b)",
+      "name": "IFBS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 311.72,
-        "cost_usd": 255.51,
-        "availability": 0.984838,
+        "latency_ms": 784.34,
+        "cost_usd": 805.83,
+        "availability": 0.97489,
         "gen_feat_1": 498.99,
         "gen_feat_2": 0.505672,
         "gen_feat_3": 506.54
       }
     },
     {
-      "id": "t_car_rental_booking_gen_8",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_8",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_hotel_a",
-      "name": "CRS.booking (Gen p_hotel_a)",
+      "name": "TIS.getInsurance (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 306.59,
-        "cost_usd": 258.27,
+        "latency_ms": 237.36,
+        "cost_usd": 54.63,
         "availability": 1.0,
         "gen_feat_1": 512.19,
         "gen_feat_2": 0.506375,
         "gen_feat_3": 513.91
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_parallel",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_as",
-              "kind": "TASK",
-              "task_id": "t_attractions_search"
-            },
-            {
-              "id": "n_booking_flow",
-              "kind": "SEQ",
-              "children": [
-                {
-                  "id": "n_flight_choice",
-                  "kind": "XOR",
-                  "branches": [
-                    {
-                      "p": 0.6,
-                      "child": {
-                        "id": "n_dfb",
-                        "kind": "TASK",
-                        "task_id": "t_flight_booking_domestic"
-                      }
-                    },
-                    {
-                      "p": 0.4,
-                      "child": {
+    },
+    {
+      "id": "t_accommodation_booking_gen_9",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_hotel_b",
+      "name": "ABS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 429.53,
+        "cost_usd": 950.2,
+        "availability": 1.0,
+        "gen_feat_1": 500.26,
+        "gen_feat_2": 0.490031,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_9",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_a",
+      "name": "ASS.getAttractions (Gen p_car_a)",
+      "features": {
+        "latency_ms": 176.2,
+        "cost_usd": 0.0,
+        "availability": 0.978629,
+        "gen_feat_1": 513.17,
+        "gen_feat_2": 0.485635,
+        "gen_feat_3": 501.55
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_9",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_car_b",
+      "name": "CRS.booking (Gen p_car_b)",
+      "features": {
+        "latency_ms": 312.7,
+        "cost_usd": 254.45,
+        "availability": 0.983777,
+        "gen_feat_1": 494.52,
+        "gen_feat_2": 0.498931,
+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_9",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_1",
+      "name": "DFBS.booking (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 664.43,
+        "cost_usd": 408.12,
+        "availability": 0.962641,
+        "gen_feat_1": 488.3,
+        "gen_feat_2": 0.490801,
+        "gen_feat_3": 512.68
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_9",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_2",
+      "name": "IFBS.booking (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 769.04,
+        "cost_usd": 811.18,
+        "availability": 0.964168,
+        "gen_feat_1": 504.72,
+        "gen_feat_2": 0.513448,
+        "gen_feat_3": 486.86
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_9",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_3",
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+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_17",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_ins_b",
+      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 177.86,
+        "cost_usd": 0.0,
+        "availability": 0.976247,
+        "gen_feat_1": 486.49,
+        "gen_feat_2": 0.496304,
+        "gen_feat_3": 489.53
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_17",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_a",
+      "name": "CRS.booking (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 305.44,
+        "cost_usd": 255.43,
+        "availability": 0.965194,
+        "gen_feat_1": 508.59,
+        "gen_feat_2": 0.50946,
+        "gen_feat_3": 507.81
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_17",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_hotel_b",
+      "name": "DFBS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 637.61,
+        "cost_usd": 415.16,
+        "availability": 0.979378,
+        "gen_feat_1": 511.93,
+        "gen_feat_2": 0.488433,
+        "gen_feat_3": 495.1
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_17",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_car_a",
+      "name": "IFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 800.37,
+        "cost_usd": 801.71,
+        "availability": 0.974798,
+        "gen_feat_1": 493.16,
+        "gen_feat_2": 0.496834,
+        "gen_feat_3": 489.26
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_17",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_car_b",
+      "name": "TIS.getInsurance (Gen p_car_b)",
+      "features": {
+        "latency_ms": 244.35,
+        "cost_usd": 54.3,
+        "availability": 1.0,
+        "gen_feat_1": 509.04,
+        "gen_feat_2": 0.491957,
+        "gen_feat_3": 514.08
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_18",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_1",
+      "name": "ABS.booking (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 425.28,
+        "cost_usd": 931.27,
+        "availability": 1.0,
+        "gen_feat_1": 491.34,
+        "gen_feat_2": 0.506838,
+        "gen_feat_3": 503.82
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_18",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_2",
+      "name": "ASS.getAttractions (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 178.98,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 496.47,
+        "gen_feat_2": 0.49141,
+        "gen_feat_3": 504.43
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_18",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_gen_3",
+      "name": "CRS.booking (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 300.88,
+        "cost_usd": 252.33,
+        "availability": 0.997123,
+        "gen_feat_1": 507.95,
+        "gen_feat_2": 0.498887,
+        "gen_feat_3": 510.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_18",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_4",
+      "name": "DFBS.booking (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 664.94,
+        "cost_usd": 410.68,
+        "availability": 0.965359,
+        "gen_feat_1": 496.32,
+        "gen_feat_2": 0.502946,
+        "gen_feat_3": 495.99
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_18",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_5",
+      "name": "IFBS.booking (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 794.12,
+        "cost_usd": 836.67,
+        "availability": 0.985896,
+        "gen_feat_1": 488.16,
+        "gen_feat_2": 0.499944,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_18",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_attractions_a",
+      "name": "TIS.getInsurance (Gen p_attractions_a)",
+      "features": {
+        "latency_ms": 244.5,
+        "cost_usd": 54.49,
+        "availability": 0.987127,
+        "gen_feat_1": 505.73,
+        "gen_feat_2": 0.498489,
+        "gen_feat_3": 496.34
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_19",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_attractions_b",
+      "name": "ABS.booking (Gen p_attractions_b)",
+      "features": {
+        "latency_ms": 438.83,
+        "cost_usd": 921.73,
+        "availability": 0.99889,
+        "gen_feat_1": 497.17,
+        "gen_feat_2": 0.493454,
+        "gen_feat_3": 485.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_19",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_dom_air_a",
+      "name": "ASS.getAttractions (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 179.09,
+        "cost_usd": 0.0,
+        "availability": 0.976492,
+        "gen_feat_1": 497.73,
+        "gen_feat_2": 0.498348,
+        "gen_feat_3": 496.99
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_19",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_b",
+      "name": "CRS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 316.42,
+        "cost_usd": 262.02,
+        "availability": 0.991599,
+        "gen_feat_1": 489.15,
+        "gen_feat_2": 0.498115,
+        "gen_feat_3": 485.99
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_19",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_int_air_a",
+      "name": "DFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 667.0,
+        "cost_usd": 413.25,
+        "availability": 0.962466,
+        "gen_feat_1": 513.82,
+        "gen_feat_2": 0.503379,
+        "gen_feat_3": 509.66
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_19",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_b",
+      "name": "IFBS.booking (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 758.34,
+        "cost_usd": 834.24,
+        "availability": 0.969654,
+        "gen_feat_1": 491.8,
+        "gen_feat_2": 0.508679,
+        "gen_feat_3": 487.73
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_19",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_ins_a",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 237.08,
+        "cost_usd": 56.6,
+        "availability": 1.0,
+        "gen_feat_1": 492.29,
+        "gen_feat_2": 0.511799,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_20",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_b",
+      "name": "ABS.booking (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 420.13,
+        "cost_usd": 956.38,
+        "availability": 0.993592,
+        "gen_feat_1": 495.98,
+        "gen_feat_2": 0.505424,
+        "gen_feat_3": 514.02
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_20",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_hotel_a",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 182.4,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.3,
+        "gen_feat_2": 0.494928,
+        "gen_feat_3": 505.76
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_20",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_b",
+      "name": "CRS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 319.09,
+        "cost_usd": 255.7,
+        "availability": 1.0,
+        "gen_feat_1": 488.78,
+        "gen_feat_2": 0.508927,
+        "gen_feat_3": 505.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 649.56,
+        "cost_usd": 413.08,
+        "availability": 0.98686,
+        "gen_feat_1": 504.29,
+        "gen_feat_2": 0.485327,
+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
+                  "branches": [
+                    {
+                      "p": 0.6,
+                      "child": {
+                        "id": "n_dfb",
+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
+                      }
+                    },
+                    {
+                      "p": 0.4,
+                      "child": {
                         "id": "n_intl_seq",
                         "kind": "SEQ",
                         "children": [
@@ -1239,19 +2226,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_accommodation_booking_cost_usd_1",
+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": false
     },
     {
@@ -1263,16 +2250,6 @@
         "t_attractions_search"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json
index c4b8e28..c8d75c8 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json
@@ -3,13 +3,22 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard",
     "name": "Travel Solution (Benatallah et al. 2002) [mono_one, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -434,21 +443,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +471,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +485,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +513,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +541,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +569,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +583,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +597,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +681,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +709,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +723,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +779,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +793,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +835,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +849,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
-        "latency_ms": 435.3,
-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +877,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
-        "latency_ms": 438.16,
-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +919,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 418.07,
-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +933,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 312.13,
-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +947,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
+      "name": "ABS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 313.91,
-        "cost_usd": 257.49,
-        "availability": 0.98681,
+        "latency_ms": 435.43,
+        "cost_usd": 940.83,
+        "availability": 0.988804,
         "gen_feat_1": 512.87,
         "gen_feat_2": 0.505241,
         "gen_feat_3": 507.29
       }
     },
     {
-      "id": "t_car_rental_booking_gen_4",
-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 302.5,
-        "cost_usd": 253.26,
-        "availability": 0.988174,
+        "latency_ms": 175.64,
+        "cost_usd": 0.0,
+        "availability": 0.993164,
         "gen_feat_1": 486.1,
         "gen_feat_2": 0.485054,
         "gen_feat_3": 503.99
       }
     },
     {
-      "id": "t_car_rental_booking_gen_5",
+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,83 +989,1063 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_6",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_domestic_gen_8",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
-      "name": "CRS.booking (Gen p_ins_a)",
+      "name": "DFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 315.37,
-        "cost_usd": 257.45,
-        "availability": 0.991843,
+        "latency_ms": 661.27,
+        "cost_usd": 415.88,
+        "availability": 0.986834,
         "gen_feat_1": 510.59,
         "gen_feat_2": 0.501464,
         "gen_feat_3": 495.6
       }
     },
     {
-      "id": "t_car_rental_booking_gen_7",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
-      "name": "CRS.booking (Gen p_ins_b)",
+      "name": "IFBS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 311.72,
-        "cost_usd": 255.51,
-        "availability": 0.984838,
+        "latency_ms": 784.34,
+        "cost_usd": 805.83,
+        "availability": 0.97489,
         "gen_feat_1": 498.99,
         "gen_feat_2": 0.505672,
         "gen_feat_3": 506.54
       }
     },
     {
-      "id": "t_car_rental_booking_gen_8",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_8",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_hotel_a",
-      "name": "CRS.booking (Gen p_hotel_a)",
+      "name": "TIS.getInsurance (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 306.59,
-        "cost_usd": 258.27,
+        "latency_ms": 237.36,
+        "cost_usd": 54.63,
         "availability": 1.0,
         "gen_feat_1": 512.19,
         "gen_feat_2": 0.506375,
         "gen_feat_3": 513.91
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_parallel",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_as",
-              "kind": "TASK",
-              "task_id": "t_attractions_search"
-            },
-            {
-              "id": "n_booking_flow",
-              "kind": "SEQ",
-              "children": [
-                {
-                  "id": "n_flight_choice",
-                  "kind": "XOR",
-                  "branches": [
-                    {
-                      "p": 0.6,
-                      "child": {
-                        "id": "n_dfb",
-                        "kind": "TASK",
-                        "task_id": "t_flight_booking_domestic"
-                      }
-                    },
-                    {
-                      "p": 0.4,
-                      "child": {
-                        "id": "n_intl_seq",
+    },
+    {
+      "id": "t_accommodation_booking_gen_9",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_hotel_b",
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+    },
+    {
+      "id": "t_car_rental_booking_gen_16",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_a",
+      "name": "CRS.booking (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 308.42,
+        "cost_usd": 260.38,
+        "availability": 1.0,
+        "gen_feat_1": 488.25,
+        "gen_feat_2": 0.511232,
+        "gen_feat_3": 488.47
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_16",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_dom_air_b",
+      "name": "DFBS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 663.65,
+        "cost_usd": 413.81,
+        "availability": 1.0,
+        "gen_feat_1": 507.29,
+        "gen_feat_2": 0.491919,
+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_16",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_a",
+      "name": "IFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 802.09,
+        "cost_usd": 826.76,
+        "availability": 0.97671,
+        "gen_feat_1": 508.44,
+        "gen_feat_2": 0.496971,
+        "gen_feat_3": 507.36
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_16",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_int_air_b",
+      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 233.54,
+        "cost_usd": 54.17,
+        "availability": 1.0,
+        "gen_feat_1": 486.26,
+        "gen_feat_2": 0.511655,
+        "gen_feat_3": 513.16
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_17",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_a",
+      "name": "ABS.booking (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 426.1,
+        "cost_usd": 952.29,
+        "availability": 0.996617,
+        "gen_feat_1": 490.18,
+        "gen_feat_2": 0.51465,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_17",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_ins_b",
+      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 177.86,
+        "cost_usd": 0.0,
+        "availability": 0.976247,
+        "gen_feat_1": 486.49,
+        "gen_feat_2": 0.496304,
+        "gen_feat_3": 489.53
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_17",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_a",
+      "name": "CRS.booking (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 305.44,
+        "cost_usd": 255.43,
+        "availability": 0.965194,
+        "gen_feat_1": 508.59,
+        "gen_feat_2": 0.50946,
+        "gen_feat_3": 507.81
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_17",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_hotel_b",
+      "name": "DFBS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 637.61,
+        "cost_usd": 415.16,
+        "availability": 0.979378,
+        "gen_feat_1": 511.93,
+        "gen_feat_2": 0.488433,
+        "gen_feat_3": 495.1
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_17",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_car_a",
+      "name": "IFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 800.37,
+        "cost_usd": 801.71,
+        "availability": 0.974798,
+        "gen_feat_1": 493.16,
+        "gen_feat_2": 0.496834,
+        "gen_feat_3": 489.26
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_17",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_car_b",
+      "name": "TIS.getInsurance (Gen p_car_b)",
+      "features": {
+        "latency_ms": 244.35,
+        "cost_usd": 54.3,
+        "availability": 1.0,
+        "gen_feat_1": 509.04,
+        "gen_feat_2": 0.491957,
+        "gen_feat_3": 514.08
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_18",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_1",
+      "name": "ABS.booking (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 425.28,
+        "cost_usd": 931.27,
+        "availability": 1.0,
+        "gen_feat_1": 491.34,
+        "gen_feat_2": 0.506838,
+        "gen_feat_3": 503.82
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_18",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_2",
+      "name": "ASS.getAttractions (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 178.98,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 496.47,
+        "gen_feat_2": 0.49141,
+        "gen_feat_3": 504.43
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_18",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_gen_3",
+      "name": "CRS.booking (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 300.88,
+        "cost_usd": 252.33,
+        "availability": 0.997123,
+        "gen_feat_1": 507.95,
+        "gen_feat_2": 0.498887,
+        "gen_feat_3": 510.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_18",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_4",
+      "name": "DFBS.booking (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 664.94,
+        "cost_usd": 410.68,
+        "availability": 0.965359,
+        "gen_feat_1": 496.32,
+        "gen_feat_2": 0.502946,
+        "gen_feat_3": 495.99
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_18",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_5",
+      "name": "IFBS.booking (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 794.12,
+        "cost_usd": 836.67,
+        "availability": 0.985896,
+        "gen_feat_1": 488.16,
+        "gen_feat_2": 0.499944,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_18",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_attractions_a",
+      "name": "TIS.getInsurance (Gen p_attractions_a)",
+      "features": {
+        "latency_ms": 244.5,
+        "cost_usd": 54.49,
+        "availability": 0.987127,
+        "gen_feat_1": 505.73,
+        "gen_feat_2": 0.498489,
+        "gen_feat_3": 496.34
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_19",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_attractions_b",
+      "name": "ABS.booking (Gen p_attractions_b)",
+      "features": {
+        "latency_ms": 438.83,
+        "cost_usd": 921.73,
+        "availability": 0.99889,
+        "gen_feat_1": 497.17,
+        "gen_feat_2": 0.493454,
+        "gen_feat_3": 485.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_19",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_dom_air_a",
+      "name": "ASS.getAttractions (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 179.09,
+        "cost_usd": 0.0,
+        "availability": 0.976492,
+        "gen_feat_1": 497.73,
+        "gen_feat_2": 0.498348,
+        "gen_feat_3": 496.99
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_19",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_b",
+      "name": "CRS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 316.42,
+        "cost_usd": 262.02,
+        "availability": 0.991599,
+        "gen_feat_1": 489.15,
+        "gen_feat_2": 0.498115,
+        "gen_feat_3": 485.99
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_19",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_int_air_a",
+      "name": "DFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 667.0,
+        "cost_usd": 413.25,
+        "availability": 0.962466,
+        "gen_feat_1": 513.82,
+        "gen_feat_2": 0.503379,
+        "gen_feat_3": 509.66
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_19",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_b",
+      "name": "IFBS.booking (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 758.34,
+        "cost_usd": 834.24,
+        "availability": 0.969654,
+        "gen_feat_1": 491.8,
+        "gen_feat_2": 0.508679,
+        "gen_feat_3": 487.73
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_19",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_ins_a",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 237.08,
+        "cost_usd": 56.6,
+        "availability": 1.0,
+        "gen_feat_1": 492.29,
+        "gen_feat_2": 0.511799,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_20",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_b",
+      "name": "ABS.booking (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 420.13,
+        "cost_usd": 956.38,
+        "availability": 0.993592,
+        "gen_feat_1": 495.98,
+        "gen_feat_2": 0.505424,
+        "gen_feat_3": 514.02
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_20",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_hotel_a",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 182.4,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.3,
+        "gen_feat_2": 0.494928,
+        "gen_feat_3": 505.76
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_20",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_b",
+      "name": "CRS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 319.09,
+        "cost_usd": 255.7,
+        "availability": 1.0,
+        "gen_feat_1": 488.78,
+        "gen_feat_2": 0.508927,
+        "gen_feat_3": 505.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 649.56,
+        "cost_usd": 413.08,
+        "availability": 0.98686,
+        "gen_feat_1": 504.29,
+        "gen_feat_2": 0.485327,
+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
+                  "branches": [
+                    {
+                      "p": 0.6,
+                      "child": {
+                        "id": "n_dfb",
+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
+                      }
+                    },
+                    {
+                      "p": 0.4,
+                      "child": {
+                        "id": "n_intl_seq",
                         "kind": "SEQ",
                         "children": [
                           {
@@ -1229,19 +2218,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_accommodation_booking_cost_usd_1",
+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": true
     },
     {
@@ -1253,16 +2242,6 @@
         "t_attractions_search"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft.json
index c8371af..ea2f6b0 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft.json
@@ -3,13 +3,20 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft",
     "name": "Travel Solution (Benatallah et al. 2002) [mono_one, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -434,21 +441,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +469,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +483,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +511,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +539,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +567,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +581,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +595,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +679,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +707,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +721,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +777,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +791,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +833,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +847,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
-        "latency_ms": 435.3,
-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +875,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
-        "latency_ms": 438.16,
-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +917,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 418.07,
-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +931,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 312.13,
-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +945,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
+      "name": "ABS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 313.91,
-        "cost_usd": 257.49,
-        "availability": 0.98681,
+        "latency_ms": 435.43,
+        "cost_usd": 940.83,
+        "availability": 0.988804,
         "gen_feat_1": 512.87,
         "gen_feat_2": 0.505241,
         "gen_feat_3": 507.29
       }
     },
     {
-      "id": "t_car_rental_booking_gen_4",
-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 302.5,
-        "cost_usd": 253.26,
-        "availability": 0.988174,
+        "latency_ms": 175.64,
+        "cost_usd": 0.0,
+        "availability": 0.993164,
         "gen_feat_1": 486.1,
         "gen_feat_2": 0.485054,
         "gen_feat_3": 503.99
       }
     },
     {
-      "id": "t_car_rental_booking_gen_5",
+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,82 +987,1062 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_6",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_domestic_gen_8",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
-      "name": "CRS.booking (Gen p_ins_a)",
+      "name": "DFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 315.37,
-        "cost_usd": 257.45,
-        "availability": 0.991843,
+        "latency_ms": 661.27,
+        "cost_usd": 415.88,
+        "availability": 0.986834,
         "gen_feat_1": 510.59,
         "gen_feat_2": 0.501464,
         "gen_feat_3": 495.6
       }
     },
     {
-      "id": "t_car_rental_booking_gen_7",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
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+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_3",
+      "name": "DFBS.booking (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 666.03,
+        "cost_usd": 423.43,
+        "availability": 0.972729,
+        "gen_feat_1": 485.43,
+        "gen_feat_2": 0.494579,
+        "gen_feat_3": 499.97
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_15",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_4",
+      "name": "IFBS.booking (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 801.74,
+        "cost_usd": 815.64,
+        "availability": 0.984204,
+        "gen_feat_1": 509.57,
+        "gen_feat_2": 0.489701,
+        "gen_feat_3": 505.18
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_15",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_5",
+      "name": "TIS.getInsurance (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 239.76,
+        "cost_usd": 56.02,
+        "availability": 0.977056,
+        "gen_feat_1": 513.49,
+        "gen_feat_2": 0.504511,
+        "gen_feat_3": 506.91
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_16",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_attractions_a",
+      "name": "ABS.booking (Gen p_attractions_a)",
+      "features": {
+        "latency_ms": 432.81,
+        "cost_usd": 934.17,
+        "availability": 0.988295,
+        "gen_feat_1": 498.85,
+        "gen_feat_2": 0.495888,
+        "gen_feat_3": 503.63
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_16",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_attractions_b",
+      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "features": {
+        "latency_ms": 182.74,
+        "cost_usd": 0.0,
+        "availability": 0.969678,
+        "gen_feat_1": 491.47,
+        "gen_feat_2": 0.508508,
+        "gen_feat_3": 509.65
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_16",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_a",
+      "name": "CRS.booking (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 308.42,
+        "cost_usd": 260.38,
+        "availability": 1.0,
+        "gen_feat_1": 488.25,
+        "gen_feat_2": 0.511232,
+        "gen_feat_3": 488.47
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_16",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_dom_air_b",
+      "name": "DFBS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 663.65,
+        "cost_usd": 413.81,
+        "availability": 1.0,
+        "gen_feat_1": 507.29,
+        "gen_feat_2": 0.491919,
+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_16",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_a",
+      "name": "IFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 802.09,
+        "cost_usd": 826.76,
+        "availability": 0.97671,
+        "gen_feat_1": 508.44,
+        "gen_feat_2": 0.496971,
+        "gen_feat_3": 507.36
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_16",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_int_air_b",
+      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 233.54,
+        "cost_usd": 54.17,
+        "availability": 1.0,
+        "gen_feat_1": 486.26,
+        "gen_feat_2": 0.511655,
+        "gen_feat_3": 513.16
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_17",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_a",
+      "name": "ABS.booking (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 426.1,
+        "cost_usd": 952.29,
+        "availability": 0.996617,
+        "gen_feat_1": 490.18,
+        "gen_feat_2": 0.51465,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_17",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_ins_b",
+      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 177.86,
+        "cost_usd": 0.0,
+        "availability": 0.976247,
+        "gen_feat_1": 486.49,
+        "gen_feat_2": 0.496304,
+        "gen_feat_3": 489.53
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_17",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_a",
+      "name": "CRS.booking (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 305.44,
+        "cost_usd": 255.43,
+        "availability": 0.965194,
+        "gen_feat_1": 508.59,
+        "gen_feat_2": 0.50946,
+        "gen_feat_3": 507.81
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_17",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_hotel_b",
+      "name": "DFBS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 637.61,
+        "cost_usd": 415.16,
+        "availability": 0.979378,
+        "gen_feat_1": 511.93,
+        "gen_feat_2": 0.488433,
+        "gen_feat_3": 495.1
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_17",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_car_a",
+      "name": "IFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 800.37,
+        "cost_usd": 801.71,
+        "availability": 0.974798,
+        "gen_feat_1": 493.16,
+        "gen_feat_2": 0.496834,
+        "gen_feat_3": 489.26
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_17",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_car_b",
+      "name": "TIS.getInsurance (Gen p_car_b)",
+      "features": {
+        "latency_ms": 244.35,
+        "cost_usd": 54.3,
+        "availability": 1.0,
+        "gen_feat_1": 509.04,
+        "gen_feat_2": 0.491957,
+        "gen_feat_3": 514.08
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_18",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_1",
+      "name": "ABS.booking (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 425.28,
+        "cost_usd": 931.27,
+        "availability": 1.0,
+        "gen_feat_1": 491.34,
+        "gen_feat_2": 0.506838,
+        "gen_feat_3": 503.82
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_18",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_2",
+      "name": "ASS.getAttractions (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 178.98,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 496.47,
+        "gen_feat_2": 0.49141,
+        "gen_feat_3": 504.43
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_18",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_gen_3",
+      "name": "CRS.booking (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 300.88,
+        "cost_usd": 252.33,
+        "availability": 0.997123,
+        "gen_feat_1": 507.95,
+        "gen_feat_2": 0.498887,
+        "gen_feat_3": 510.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_18",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_4",
+      "name": "DFBS.booking (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 664.94,
+        "cost_usd": 410.68,
+        "availability": 0.965359,
+        "gen_feat_1": 496.32,
+        "gen_feat_2": 0.502946,
+        "gen_feat_3": 495.99
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_18",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_5",
+      "name": "IFBS.booking (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 794.12,
+        "cost_usd": 836.67,
+        "availability": 0.985896,
+        "gen_feat_1": 488.16,
+        "gen_feat_2": 0.499944,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_18",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_attractions_a",
+      "name": "TIS.getInsurance (Gen p_attractions_a)",
+      "features": {
+        "latency_ms": 244.5,
+        "cost_usd": 54.49,
+        "availability": 0.987127,
+        "gen_feat_1": 505.73,
+        "gen_feat_2": 0.498489,
+        "gen_feat_3": 496.34
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_19",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_attractions_b",
+      "name": "ABS.booking (Gen p_attractions_b)",
+      "features": {
+        "latency_ms": 438.83,
+        "cost_usd": 921.73,
+        "availability": 0.99889,
+        "gen_feat_1": 497.17,
+        "gen_feat_2": 0.493454,
+        "gen_feat_3": 485.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_19",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_dom_air_a",
+      "name": "ASS.getAttractions (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 179.09,
+        "cost_usd": 0.0,
+        "availability": 0.976492,
+        "gen_feat_1": 497.73,
+        "gen_feat_2": 0.498348,
+        "gen_feat_3": 496.99
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_19",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_b",
+      "name": "CRS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 316.42,
+        "cost_usd": 262.02,
+        "availability": 0.991599,
+        "gen_feat_1": 489.15,
+        "gen_feat_2": 0.498115,
+        "gen_feat_3": 485.99
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_19",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_int_air_a",
+      "name": "DFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 667.0,
+        "cost_usd": 413.25,
+        "availability": 0.962466,
+        "gen_feat_1": 513.82,
+        "gen_feat_2": 0.503379,
+        "gen_feat_3": 509.66
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_19",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_b",
+      "name": "IFBS.booking (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 758.34,
+        "cost_usd": 834.24,
+        "availability": 0.969654,
+        "gen_feat_1": 491.8,
+        "gen_feat_2": 0.508679,
+        "gen_feat_3": 487.73
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_19",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_ins_a",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 237.08,
+        "cost_usd": 56.6,
+        "availability": 1.0,
+        "gen_feat_1": 492.29,
+        "gen_feat_2": 0.511799,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_20",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_b",
+      "name": "ABS.booking (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 420.13,
+        "cost_usd": 956.38,
+        "availability": 0.993592,
+        "gen_feat_1": 495.98,
+        "gen_feat_2": 0.505424,
+        "gen_feat_3": 514.02
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_20",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_hotel_a",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 182.4,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.3,
+        "gen_feat_2": 0.494928,
+        "gen_feat_3": 505.76
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_20",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_b",
+      "name": "CRS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 319.09,
+        "cost_usd": 255.7,
+        "availability": 1.0,
+        "gen_feat_1": 488.78,
+        "gen_feat_2": 0.508927,
+        "gen_feat_3": 505.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 649.56,
+        "cost_usd": 413.08,
+        "availability": 0.98686,
+        "gen_feat_1": 504.29,
+        "gen_feat_2": 0.485327,
+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
+                  "branches": [
+                    {
+                      "p": 0.6,
+                      "child": {
+                        "id": "n_dfb",
+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
+                      }
+                    },
+                    {
+                      "p": 0.4,
+                      "child": {
                         "id": "n_intl_seq",
                         "kind": "SEQ",
                         "children": [
@@ -1229,19 +2216,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_accommodation_booking_cost_usd_1",
+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": false
     },
     {
@@ -1253,16 +2240,6 @@
         "t_attractions_search"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_hard.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_hard.json
index 80477a7..8cfd118 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_hard.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_hard.json
@@ -3,13 +3,22 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_hard",
     "name": "Travel Solution (Benatallah et al. 2002) [mono_utility, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -434,21 +443,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +471,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +485,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +513,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +541,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +569,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +583,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +597,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +681,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +709,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +723,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +779,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +793,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +835,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +849,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
-        "latency_ms": 435.3,
-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +877,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
-        "latency_ms": 438.16,
-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +919,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 418.07,
-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +933,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 312.13,
-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +947,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
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-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
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-        "cost_usd": 253.26,
-        "availability": 0.988174,
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         "gen_feat_2": 0.485054,
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       }
     },
     {
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+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,83 +989,1063 @@
       }
     },
     {
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-      "task_id": "t_car_rental_booking",
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+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
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-        "cost_usd": 257.45,
-        "availability": 0.991843,
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       }
     },
     {
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-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
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-        "cost_usd": 255.51,
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         "gen_feat_2": 0.505672,
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       }
     },
     {
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-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_8",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_hotel_a",
-      "name": "CRS.booking (Gen p_hotel_a)",
+      "name": "TIS.getInsurance (Gen p_hotel_a)",
       "features": {
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-        "cost_usd": 258.27,
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-          "kind": "AND",
-          "children": [
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-              "kind": "TASK",
-              "task_id": "t_attractions_search"
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-                      "child": {
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+    },
+    {
+      "id": "t_flight_booking_international_gen_14",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_hotel_b",
+      "name": "IFBS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 782.32,
+        "cost_usd": 841.79,
+        "availability": 0.992158,
+        "gen_feat_1": 498.5,
+        "gen_feat_2": 0.486434,
+        "gen_feat_3": 497.53
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_14",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_car_a",
+      "name": "TIS.getInsurance (Gen p_car_a)",
+      "features": {
+        "latency_ms": 235.56,
+        "cost_usd": 54.59,
+        "availability": 0.979113,
+        "gen_feat_1": 500.93,
+        "gen_feat_2": 0.485278,
+        "gen_feat_3": 501.57
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_15",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_car_b",
+      "name": "ABS.booking (Gen p_car_b)",
+      "features": {
+        "latency_ms": 427.59,
+        "cost_usd": 939.47,
+        "availability": 1.0,
+        "gen_feat_1": 486.48,
+        "gen_feat_2": 0.489445,
+        "gen_feat_3": 490.42
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_15",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_1",
+      "name": "ASS.getAttractions (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 179.89,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 496.21,
+        "gen_feat_2": 0.507269,
+        "gen_feat_3": 493.26
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_15",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_gen_2",
+      "name": "CRS.booking (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 305.87,
+        "cost_usd": 257.73,
+        "availability": 0.984414,
+        "gen_feat_1": 496.22,
+        "gen_feat_2": 0.48981,
+        "gen_feat_3": 514.39
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_15",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_3",
+      "name": "DFBS.booking (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 666.03,
+        "cost_usd": 423.43,
+        "availability": 0.972729,
+        "gen_feat_1": 485.43,
+        "gen_feat_2": 0.494579,
+        "gen_feat_3": 499.97
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_15",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_4",
+      "name": "IFBS.booking (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 801.74,
+        "cost_usd": 815.64,
+        "availability": 0.984204,
+        "gen_feat_1": 509.57,
+        "gen_feat_2": 0.489701,
+        "gen_feat_3": 505.18
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_15",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_5",
+      "name": "TIS.getInsurance (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 239.76,
+        "cost_usd": 56.02,
+        "availability": 0.977056,
+        "gen_feat_1": 513.49,
+        "gen_feat_2": 0.504511,
+        "gen_feat_3": 506.91
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_16",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_attractions_a",
+      "name": "ABS.booking (Gen p_attractions_a)",
+      "features": {
+        "latency_ms": 432.81,
+        "cost_usd": 934.17,
+        "availability": 0.988295,
+        "gen_feat_1": 498.85,
+        "gen_feat_2": 0.495888,
+        "gen_feat_3": 503.63
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_16",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_attractions_b",
+      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "features": {
+        "latency_ms": 182.74,
+        "cost_usd": 0.0,
+        "availability": 0.969678,
+        "gen_feat_1": 491.47,
+        "gen_feat_2": 0.508508,
+        "gen_feat_3": 509.65
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_16",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_a",
+      "name": "CRS.booking (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 308.42,
+        "cost_usd": 260.38,
+        "availability": 1.0,
+        "gen_feat_1": 488.25,
+        "gen_feat_2": 0.511232,
+        "gen_feat_3": 488.47
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_16",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_dom_air_b",
+      "name": "DFBS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 663.65,
+        "cost_usd": 413.81,
+        "availability": 1.0,
+        "gen_feat_1": 507.29,
+        "gen_feat_2": 0.491919,
+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_16",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_a",
+      "name": "IFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 802.09,
+        "cost_usd": 826.76,
+        "availability": 0.97671,
+        "gen_feat_1": 508.44,
+        "gen_feat_2": 0.496971,
+        "gen_feat_3": 507.36
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_16",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_int_air_b",
+      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 233.54,
+        "cost_usd": 54.17,
+        "availability": 1.0,
+        "gen_feat_1": 486.26,
+        "gen_feat_2": 0.511655,
+        "gen_feat_3": 513.16
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_17",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_a",
+      "name": "ABS.booking (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 426.1,
+        "cost_usd": 952.29,
+        "availability": 0.996617,
+        "gen_feat_1": 490.18,
+        "gen_feat_2": 0.51465,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_17",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_ins_b",
+      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 177.86,
+        "cost_usd": 0.0,
+        "availability": 0.976247,
+        "gen_feat_1": 486.49,
+        "gen_feat_2": 0.496304,
+        "gen_feat_3": 489.53
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_17",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_a",
+      "name": "CRS.booking (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 305.44,
+        "cost_usd": 255.43,
+        "availability": 0.965194,
+        "gen_feat_1": 508.59,
+        "gen_feat_2": 0.50946,
+        "gen_feat_3": 507.81
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_17",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_hotel_b",
+      "name": "DFBS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 637.61,
+        "cost_usd": 415.16,
+        "availability": 0.979378,
+        "gen_feat_1": 511.93,
+        "gen_feat_2": 0.488433,
+        "gen_feat_3": 495.1
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_17",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_car_a",
+      "name": "IFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 800.37,
+        "cost_usd": 801.71,
+        "availability": 0.974798,
+        "gen_feat_1": 493.16,
+        "gen_feat_2": 0.496834,
+        "gen_feat_3": 489.26
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_17",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_car_b",
+      "name": "TIS.getInsurance (Gen p_car_b)",
+      "features": {
+        "latency_ms": 244.35,
+        "cost_usd": 54.3,
+        "availability": 1.0,
+        "gen_feat_1": 509.04,
+        "gen_feat_2": 0.491957,
+        "gen_feat_3": 514.08
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_18",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_1",
+      "name": "ABS.booking (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 425.28,
+        "cost_usd": 931.27,
+        "availability": 1.0,
+        "gen_feat_1": 491.34,
+        "gen_feat_2": 0.506838,
+        "gen_feat_3": 503.82
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_18",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_2",
+      "name": "ASS.getAttractions (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 178.98,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 496.47,
+        "gen_feat_2": 0.49141,
+        "gen_feat_3": 504.43
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_18",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_gen_3",
+      "name": "CRS.booking (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 300.88,
+        "cost_usd": 252.33,
+        "availability": 0.997123,
+        "gen_feat_1": 507.95,
+        "gen_feat_2": 0.498887,
+        "gen_feat_3": 510.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_18",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_4",
+      "name": "DFBS.booking (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 664.94,
+        "cost_usd": 410.68,
+        "availability": 0.965359,
+        "gen_feat_1": 496.32,
+        "gen_feat_2": 0.502946,
+        "gen_feat_3": 495.99
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_18",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_5",
+      "name": "IFBS.booking (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 794.12,
+        "cost_usd": 836.67,
+        "availability": 0.985896,
+        "gen_feat_1": 488.16,
+        "gen_feat_2": 0.499944,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_18",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_attractions_a",
+      "name": "TIS.getInsurance (Gen p_attractions_a)",
+      "features": {
+        "latency_ms": 244.5,
+        "cost_usd": 54.49,
+        "availability": 0.987127,
+        "gen_feat_1": 505.73,
+        "gen_feat_2": 0.498489,
+        "gen_feat_3": 496.34
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_19",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_attractions_b",
+      "name": "ABS.booking (Gen p_attractions_b)",
+      "features": {
+        "latency_ms": 438.83,
+        "cost_usd": 921.73,
+        "availability": 0.99889,
+        "gen_feat_1": 497.17,
+        "gen_feat_2": 0.493454,
+        "gen_feat_3": 485.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_19",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_dom_air_a",
+      "name": "ASS.getAttractions (Gen p_dom_air_a)",
+      "features": {
+        "latency_ms": 179.09,
+        "cost_usd": 0.0,
+        "availability": 0.976492,
+        "gen_feat_1": 497.73,
+        "gen_feat_2": 0.498348,
+        "gen_feat_3": 496.99
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_19",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_dom_air_b",
+      "name": "CRS.booking (Gen p_dom_air_b)",
+      "features": {
+        "latency_ms": 316.42,
+        "cost_usd": 262.02,
+        "availability": 0.991599,
+        "gen_feat_1": 489.15,
+        "gen_feat_2": 0.498115,
+        "gen_feat_3": 485.99
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_19",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_int_air_a",
+      "name": "DFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 667.0,
+        "cost_usd": 413.25,
+        "availability": 0.962466,
+        "gen_feat_1": 513.82,
+        "gen_feat_2": 0.503379,
+        "gen_feat_3": 509.66
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_19",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_b",
+      "name": "IFBS.booking (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 758.34,
+        "cost_usd": 834.24,
+        "availability": 0.969654,
+        "gen_feat_1": 491.8,
+        "gen_feat_2": 0.508679,
+        "gen_feat_3": 487.73
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_19",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_ins_a",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 237.08,
+        "cost_usd": 56.6,
+        "availability": 1.0,
+        "gen_feat_1": 492.29,
+        "gen_feat_2": 0.511799,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_20",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_b",
+      "name": "ABS.booking (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 420.13,
+        "cost_usd": 956.38,
+        "availability": 0.993592,
+        "gen_feat_1": 495.98,
+        "gen_feat_2": 0.505424,
+        "gen_feat_3": 514.02
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_20",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_hotel_a",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 182.4,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.3,
+        "gen_feat_2": 0.494928,
+        "gen_feat_3": 505.76
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_20",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_b",
+      "name": "CRS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 319.09,
+        "cost_usd": 255.7,
+        "availability": 1.0,
+        "gen_feat_1": 488.78,
+        "gen_feat_2": 0.508927,
+        "gen_feat_3": 505.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 649.56,
+        "cost_usd": 413.08,
+        "availability": 0.98686,
+        "gen_feat_1": 504.29,
+        "gen_feat_2": 0.485327,
+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
+                  "branches": [
+                    {
+                      "p": 0.6,
+                      "child": {
+                        "id": "n_dfb",
+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
+                      }
+                    },
+                    {
+                      "p": 0.4,
+                      "child": {
+                        "id": "n_intl_seq",
                         "kind": "SEQ",
                         "children": [
                           {
@@ -1239,19 +2228,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_accommodation_booking_cost_usd_1",
+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": true
     },
     {
@@ -1263,16 +2252,6 @@
         "t_attractions_search"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_soft.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_soft.json
index d157856..e6dd4a8 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_soft.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_soft.json
@@ -3,13 +3,20 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_soft",
     "name": "Travel Solution (Benatallah et al. 2002) [mono_utility, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -434,21 +441,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +469,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +483,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +511,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +539,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +567,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +581,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +595,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +679,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +707,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +721,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +777,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +791,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +833,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +847,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
-        "latency_ms": 435.3,
-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +875,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
-        "latency_ms": 438.16,
-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +917,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
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-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +931,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 312.13,
-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +945,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
+      "name": "ABS.booking (Gen p_dom_air_b)",
       "features": {
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-        "cost_usd": 257.49,
-        "availability": 0.98681,
+        "latency_ms": 435.43,
+        "cost_usd": 940.83,
+        "availability": 0.988804,
         "gen_feat_1": 512.87,
         "gen_feat_2": 0.505241,
         "gen_feat_3": 507.29
       }
     },
     {
-      "id": "t_car_rental_booking_gen_4",
-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 302.5,
-        "cost_usd": 253.26,
-        "availability": 0.988174,
+        "latency_ms": 175.64,
+        "cost_usd": 0.0,
+        "availability": 0.993164,
         "gen_feat_1": 486.1,
         "gen_feat_2": 0.485054,
         "gen_feat_3": 503.99
       }
     },
     {
-      "id": "t_car_rental_booking_gen_5",
+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,82 +987,1062 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_6",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_domestic_gen_8",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
-      "name": "CRS.booking (Gen p_ins_a)",
+      "name": "DFBS.booking (Gen p_ins_a)",
       "features": {
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-        "cost_usd": 257.45,
-        "availability": 0.991843,
+        "latency_ms": 661.27,
+        "cost_usd": 415.88,
+        "availability": 0.986834,
         "gen_feat_1": 510.59,
         "gen_feat_2": 0.501464,
         "gen_feat_3": 495.6
       }
     },
     {
-      "id": "t_car_rental_booking_gen_7",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
-      "name": "CRS.booking (Gen p_ins_b)",
+      "name": "IFBS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 311.72,
-        "cost_usd": 255.51,
-        "availability": 0.984838,
+        "latency_ms": 784.34,
+        "cost_usd": 805.83,
+        "availability": 0.97489,
         "gen_feat_1": 498.99,
         "gen_feat_2": 0.505672,
         "gen_feat_3": 506.54
       }
     },
     {
-      "id": "t_car_rental_booking_gen_8",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_8",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_hotel_a",
-      "name": "CRS.booking (Gen p_hotel_a)",
+      "name": "TIS.getInsurance (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 306.59,
-        "cost_usd": 258.27,
+        "latency_ms": 237.36,
+        "cost_usd": 54.63,
         "availability": 1.0,
         "gen_feat_1": 512.19,
         "gen_feat_2": 0.506375,
         "gen_feat_3": 513.91
       }
-    }
-  ],
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-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_parallel",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_as",
-              "kind": "TASK",
-              "task_id": "t_attractions_search"
-            },
-            {
-              "id": "n_booking_flow",
-              "kind": "SEQ",
-              "children": [
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-                  "id": "n_flight_choice",
-                  "kind": "XOR",
-                  "branches": [
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-                      "child": {
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-                        "kind": "TASK",
-                        "task_id": "t_flight_booking_domestic"
-                      }
-                    },
-                    {
-                      "p": 0.4,
-                      "child": {
+    },
+    {
+      "id": "t_accommodation_booking_gen_9",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_hotel_b",
+      "name": "ABS.booking (Gen p_hotel_b)",
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+        "gen_feat_1": 500.26,
+        "gen_feat_2": 0.490031,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_9",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_a",
+      "name": "ASS.getAttractions (Gen p_car_a)",
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+        "gen_feat_3": 501.55
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_9",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_car_b",
+      "name": "CRS.booking (Gen p_car_b)",
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+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_9",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_1",
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+        "gen_feat_3": 512.68
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_9",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_2",
+      "name": "IFBS.booking (Gen p_gen_2)",
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+        "gen_feat_1": 504.72,
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+        "gen_feat_3": 486.86
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_9",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_3",
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+      }
+    },
+    {
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+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_4",
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+    },
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+      "task_id": "t_attractions_search",
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+    },
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+      "task_id": "t_car_rental_booking",
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+        "gen_feat_3": 506.8
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+    },
+    {
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+      "task_id": "t_flight_booking_domestic",
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+        "gen_feat_3": 485.55
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+    },
+    {
+      "id": "t_flight_booking_international_gen_10",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_dom_air_a",
+      "name": "IFBS.booking (Gen p_dom_air_a)",
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+    },
+    {
+      "id": "t_travel_insurance_gen_10",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_dom_air_b",
+      "name": "TIS.getInsurance (Gen p_dom_air_b)",
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+      "task_id": "t_accommodation_booking",
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+    {
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+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_ins_b",
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+      }
+    },
+    {
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+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_hotel_a",
+      "name": "IFBS.booking (Gen p_hotel_a)",
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+    },
+    {
+      "id": "t_travel_insurance_gen_11",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_hotel_b",
+      "name": "TIS.getInsurance (Gen p_hotel_b)",
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+    },
+    {
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+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_car_a",
+      "name": "ABS.booking (Gen p_car_a)",
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+    },
+    {
+      "id": "t_attractions_search_gen_12",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_b",
+      "name": "ASS.getAttractions (Gen p_car_b)",
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+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_12",
+      "task_id": "t_car_rental_booking",
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+      }
+    },
+    {
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+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_2",
+      "name": "DFBS.booking (Gen p_gen_2)",
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+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_12",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_3",
+      "name": "IFBS.booking (Gen p_gen_3)",
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+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_12",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_4",
+      "name": "TIS.getInsurance (Gen p_gen_4)",
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+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_13",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_5",
+      "name": "ABS.booking (Gen p_gen_5)",
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+      }
+    },
+    {
+      "id": "t_attractions_search_gen_13",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_attractions_a",
+      "name": "ASS.getAttractions (Gen p_attractions_a)",
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+    },
+    {
+      "id": "t_car_rental_booking_gen_13",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_attractions_b",
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+    },
+    {
+      "id": "t_flight_booking_domestic_gen_13",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_dom_air_a",
+      "name": "DFBS.booking (Gen p_dom_air_a)",
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+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_13",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_dom_air_b",
+      "name": "IFBS.booking (Gen p_dom_air_b)",
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+        "gen_feat_1": 508.25,
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+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_13",
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+      }
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+      "task_id": "t_car_rental_booking",
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+      "name": "CRS.booking (Gen p_hotel_b)",
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+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
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+        "cost_usd": 413.08,
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+        "gen_feat_1": 504.29,
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+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
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+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
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+                      "child": {
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+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
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                         "kind": "SEQ",
                         "children": [
@@ -1239,19 +2226,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": false
     },
     {
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+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": false
     },
     {
@@ -1263,16 +2250,6 @@
         "t_attractions_search"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_hard.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_hard.json
index 2abe232..59e4b00 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_hard.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_hard.json
@@ -3,13 +3,22 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_multi_hard",
     "name": "Travel Solution (Benatallah et al. 2002) [multi, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -434,21 +443,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +471,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +485,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +513,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +541,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +569,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +583,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +597,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +681,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +709,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +723,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +779,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +793,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +835,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +849,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
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-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +877,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
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-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +919,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
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-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +933,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
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-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +947,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
+      "name": "ABS.booking (Gen p_dom_air_b)",
       "features": {
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-        "cost_usd": 257.49,
-        "availability": 0.98681,
+        "latency_ms": 435.43,
+        "cost_usd": 940.83,
+        "availability": 0.988804,
         "gen_feat_1": 512.87,
         "gen_feat_2": 0.505241,
         "gen_feat_3": 507.29
       }
     },
     {
-      "id": "t_car_rental_booking_gen_4",
-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
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-        "cost_usd": 253.26,
-        "availability": 0.988174,
+        "latency_ms": 175.64,
+        "cost_usd": 0.0,
+        "availability": 0.993164,
         "gen_feat_1": 486.1,
         "gen_feat_2": 0.485054,
         "gen_feat_3": 503.99
       }
     },
     {
-      "id": "t_car_rental_booking_gen_5",
+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,83 +989,1063 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_6",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_domestic_gen_8",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
-      "name": "CRS.booking (Gen p_ins_a)",
+      "name": "DFBS.booking (Gen p_ins_a)",
       "features": {
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-        "cost_usd": 257.45,
-        "availability": 0.991843,
+        "latency_ms": 661.27,
+        "cost_usd": 415.88,
+        "availability": 0.986834,
         "gen_feat_1": 510.59,
         "gen_feat_2": 0.501464,
         "gen_feat_3": 495.6
       }
     },
     {
-      "id": "t_car_rental_booking_gen_7",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
-      "name": "CRS.booking (Gen p_ins_b)",
+      "name": "IFBS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 311.72,
-        "cost_usd": 255.51,
-        "availability": 0.984838,
+        "latency_ms": 784.34,
+        "cost_usd": 805.83,
+        "availability": 0.97489,
         "gen_feat_1": 498.99,
         "gen_feat_2": 0.505672,
         "gen_feat_3": 506.54
       }
     },
     {
-      "id": "t_car_rental_booking_gen_8",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_8",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_hotel_a",
-      "name": "CRS.booking (Gen p_hotel_a)",
+      "name": "TIS.getInsurance (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 306.59,
-        "cost_usd": 258.27,
+        "latency_ms": 237.36,
+        "cost_usd": 54.63,
         "availability": 1.0,
         "gen_feat_1": 512.19,
         "gen_feat_2": 0.506375,
         "gen_feat_3": 513.91
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_parallel",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_as",
-              "kind": "TASK",
-              "task_id": "t_attractions_search"
-            },
-            {
-              "id": "n_booking_flow",
-              "kind": "SEQ",
-              "children": [
-                {
-                  "id": "n_flight_choice",
-                  "kind": "XOR",
-                  "branches": [
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-                      "p": 0.6,
-                      "child": {
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-                        "kind": "TASK",
-                        "task_id": "t_flight_booking_domestic"
-                      }
-                    },
-                    {
-                      "p": 0.4,
-                      "child": {
-                        "id": "n_intl_seq",
+    },
+    {
+      "id": "t_accommodation_booking_gen_9",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_hotel_b",
+      "name": "ABS.booking (Gen p_hotel_b)",
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+        "gen_feat_2": 0.490031,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_9",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_a",
+      "name": "ASS.getAttractions (Gen p_car_a)",
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+        "gen_feat_3": 501.55
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_9",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_car_b",
+      "name": "CRS.booking (Gen p_car_b)",
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+        "gen_feat_1": 494.52,
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+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_9",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_1",
+      "name": "DFBS.booking (Gen p_gen_1)",
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+        "gen_feat_2": 0.490801,
+        "gen_feat_3": 512.68
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_9",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_2",
+      "name": "IFBS.booking (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 811.18,
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+        "gen_feat_1": 504.72,
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+        "gen_feat_3": 486.86
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_9",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_3",
+      "name": "TIS.getInsurance (Gen p_gen_3)",
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+    },
+    {
+      "id": "t_accommodation_booking_gen_10",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_4",
+      "name": "ABS.booking (Gen p_gen_4)",
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+      }
+    },
+    {
+      "id": "t_attractions_search_gen_10",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_5",
+      "name": "ASS.getAttractions (Gen p_gen_5)",
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+    },
+    {
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+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_attractions_a",
+      "name": "CRS.booking (Gen p_attractions_a)",
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+        "gen_feat_3": 506.8
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+    },
+    {
+      "id": "t_flight_booking_domestic_gen_10",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_attractions_b",
+      "name": "DFBS.booking (Gen p_attractions_b)",
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+        "gen_feat_3": 485.55
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_10",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_dom_air_a",
+      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "features": {
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+        "cost_usd": 797.8,
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+        "gen_feat_1": 492.52,
+        "gen_feat_2": 0.492049,
+        "gen_feat_3": 500.77
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_10",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_dom_air_b",
+      "name": "TIS.getInsurance (Gen p_dom_air_b)",
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+        "gen_feat_3": 496.98
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_11",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_int_air_a",
+      "name": "ABS.booking (Gen p_int_air_a)",
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+      }
+    },
+    {
+      "id": "t_attractions_search_gen_11",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_int_air_b",
+      "name": "ASS.getAttractions (Gen p_int_air_b)",
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+    },
+    {
+      "id": "t_car_rental_booking_gen_11",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_ins_a",
+      "name": "CRS.booking (Gen p_ins_a)",
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+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_11",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_ins_b",
+      "name": "DFBS.booking (Gen p_ins_b)",
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+        "gen_feat_1": 512.65,
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+        "gen_feat_3": 492.51
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_11",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_hotel_a",
+      "name": "IFBS.booking (Gen p_hotel_a)",
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+        "gen_feat_1": 491.03,
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+        "gen_feat_3": 485.06
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+    },
+    {
+      "id": "t_travel_insurance_gen_11",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_hotel_b",
+      "name": "TIS.getInsurance (Gen p_hotel_b)",
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+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_12",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_car_a",
+      "name": "ABS.booking (Gen p_car_a)",
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+      }
+    },
+    {
+      "id": "t_attractions_search_gen_12",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_b",
+      "name": "ASS.getAttractions (Gen p_car_b)",
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+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_12",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_gen_1",
+      "name": "CRS.booking (Gen p_gen_1)",
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+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_12",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_2",
+      "name": "DFBS.booking (Gen p_gen_2)",
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+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_12",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_3",
+      "name": "IFBS.booking (Gen p_gen_3)",
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+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_12",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_4",
+      "name": "TIS.getInsurance (Gen p_gen_4)",
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+      }
+    },
+    {
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+        "latency_ms": 182.4,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.3,
+        "gen_feat_2": 0.494928,
+        "gen_feat_3": 505.76
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_20",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_b",
+      "name": "CRS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 319.09,
+        "cost_usd": 255.7,
+        "availability": 1.0,
+        "gen_feat_1": 488.78,
+        "gen_feat_2": 0.508927,
+        "gen_feat_3": 505.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 649.56,
+        "cost_usd": 413.08,
+        "availability": 0.98686,
+        "gen_feat_1": 504.29,
+        "gen_feat_2": 0.485327,
+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
+                  "branches": [
+                    {
+                      "p": 0.6,
+                      "child": {
+                        "id": "n_dfb",
+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
+                      }
+                    },
+                    {
+                      "p": 0.4,
+                      "child": {
+                        "id": "n_intl_seq",
                         "kind": "SEQ",
                         "children": [
                           {
@@ -1233,19 +2222,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_accommodation_booking_cost_usd_1",
+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": true
     },
     {
@@ -1257,16 +2246,6 @@
         "t_attractions_search"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_soft.json b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_soft.json
index 874d46e..97a6d15 100644
--- a/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_soft.json
+++ b/experimentation/instances/benatallah2002-selfserv-travel-solution-cts-itas_multi_soft.json
@@ -3,13 +3,20 @@
     "id": "benatallah2002-selfserv-travel-solution-cts-itas_multi_soft",
     "name": "Travel Solution (Benatallah et al. 2002) [multi, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from the SELF-SERV running example (CTS and ITAS statecharts). QoS values and branch probabilities are illustrative because the paper does not provide numeric QoS.",
     "paper": {
       "title": "Declarative Compositionand Peer-to-PeerProvisioning of Dynamic WebServices",
       "authors": "B. Benatallah et al.",
       "year": 2002,
       "doi": "10.5555/876875.878987"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -434,21 +441,21 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_2",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_2",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_attractions_b",
-      "name": "ASS.getAttractions (Gen p_attractions_b)",
+      "name": "ABS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 183.9,
-        "cost_usd": 0.0,
-        "availability": 1.0,
+        "latency_ms": 439.32,
+        "cost_usd": 974.26,
+        "availability": 0.997007,
         "gen_feat_1": 485.11,
         "gen_feat_2": 0.507033,
         "gen_feat_3": 506.35
       }
     },
     {
-      "id": "t_attractions_search_gen_3",
+      "id": "t_attractions_search_gen_2",
       "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_a",
       "name": "ASS.getAttractions (Gen p_dom_air_a)",
@@ -462,13 +469,13 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_4",
-      "task_id": "t_attractions_search",
+      "id": "t_car_rental_booking_gen_2",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_dom_air_b",
-      "name": "ASS.getAttractions (Gen p_dom_air_b)",
+      "name": "CRS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 177.98,
-        "cost_usd": 0.0,
+        "latency_ms": 306.52,
+        "cost_usd": 265.14,
         "availability": 1.0,
         "gen_feat_1": 494.8,
         "gen_feat_2": 0.492691,
@@ -476,27 +483,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_5",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_domestic_gen_2",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_a",
-      "name": "ASS.getAttractions (Gen p_int_air_a)",
+      "name": "DFBS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 180.31,
-        "cost_usd": 0.0,
-        "availability": 0.975329,
+        "latency_ms": 651.12,
+        "cost_usd": 418.28,
+        "availability": 0.965527,
         "gen_feat_1": 511.15,
         "gen_feat_2": 0.485867,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_attractions_search_gen_6",
-      "task_id": "t_attractions_search",
+      "id": "t_flight_booking_international_gen_2",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_int_air_b",
-      "name": "ASS.getAttractions (Gen p_int_air_b)",
+      "name": "IFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 178.35,
-        "cost_usd": 0.0,
+        "latency_ms": 772.85,
+        "cost_usd": 820.64,
         "availability": 1.0,
         "gen_feat_1": 491.67,
         "gen_feat_2": 0.511467,
@@ -504,27 +511,27 @@
       }
     },
     {
-      "id": "t_attractions_search_gen_7",
-      "task_id": "t_attractions_search",
+      "id": "t_travel_insurance_gen_2",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_ins_a",
-      "name": "ASS.getAttractions (Gen p_ins_a)",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
       "features": {
-        "latency_ms": 183.13,
-        "cost_usd": 0.0,
-        "availability": 0.982652,
+        "latency_ms": 244.17,
+        "cost_usd": 54.94,
+        "availability": 0.984627,
         "gen_feat_1": 486.89,
         "gen_feat_2": 0.493076,
         "gen_feat_3": 489.66
       }
     },
     {
-      "id": "t_attractions_search_gen_8",
-      "task_id": "t_attractions_search",
+      "id": "t_accommodation_booking_gen_3",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_ins_b",
-      "name": "ASS.getAttractions (Gen p_ins_b)",
+      "name": "ABS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 176.67,
-        "cost_usd": 0.0,
+        "latency_ms": 422.04,
+        "cost_usd": 925.74,
         "availability": 1.0,
         "gen_feat_1": 509.91,
         "gen_feat_2": 0.510797,
@@ -532,27 +539,27 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_2",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_3",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_a",
-      "name": "DFBS.booking (Gen p_hotel_a)",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 631.95,
-        "cost_usd": 420.96,
-        "availability": 0.993293,
+        "latency_ms": 175.0,
+        "cost_usd": 0.0,
+        "availability": 1.0,
         "gen_feat_1": 509.36,
         "gen_feat_2": 0.48832,
         "gen_feat_3": 493.54
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_3",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_car_rental_booking_gen_3",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_hotel_b",
-      "name": "DFBS.booking (Gen p_hotel_b)",
+      "name": "CRS.booking (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 657.0,
-        "cost_usd": 410.51,
+        "latency_ms": 313.34,
+        "cost_usd": 254.12,
         "availability": 1.0,
         "gen_feat_1": 512.88,
         "gen_feat_2": 0.494914,
@@ -560,7 +567,7 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_4",
+      "id": "t_flight_booking_domestic_gen_3",
       "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_a",
       "name": "DFBS.booking (Gen p_car_a)",
@@ -574,13 +581,13 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_5",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_flight_booking_international_gen_3",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_car_b",
-      "name": "DFBS.booking (Gen p_car_b)",
+      "name": "IFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 660.26,
-        "cost_usd": 422.73,
+        "latency_ms": 792.32,
+        "cost_usd": 825.32,
         "availability": 1.0,
         "gen_feat_1": 511.72,
         "gen_feat_2": 0.496489,
@@ -588,69 +595,69 @@
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_6",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_travel_insurance_gen_3",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_1",
-      "name": "DFBS.booking (Gen p_gen_1)",
+      "name": "TIS.getInsurance (Gen p_gen_1)",
       "features": {
-        "latency_ms": 638.86,
-        "cost_usd": 413.02,
-        "availability": 0.985773,
+        "latency_ms": 235.89,
+        "cost_usd": 54.09,
+        "availability": 0.997782,
         "gen_feat_1": 498.15,
         "gen_feat_2": 0.488561,
         "gen_feat_3": 503.45
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_7",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_accommodation_booking_gen_4",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_2",
-      "name": "DFBS.booking (Gen p_gen_2)",
+      "name": "ABS.booking (Gen p_gen_2)",
       "features": {
-        "latency_ms": 641.08,
-        "cost_usd": 429.65,
-        "availability": 0.978204,
+        "latency_ms": 424.1,
+        "cost_usd": 971.83,
+        "availability": 0.985156,
         "gen_feat_1": 506.04,
         "gen_feat_2": 0.496573,
         "gen_feat_3": 510.36
       }
     },
     {
-      "id": "t_flight_booking_domestic_gen_8",
-      "task_id": "t_flight_booking_domestic",
+      "id": "t_attractions_search_gen_4",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_3",
-      "name": "DFBS.booking (Gen p_gen_3)",
+      "name": "ASS.getAttractions (Gen p_gen_3)",
       "features": {
-        "latency_ms": 664.71,
-        "cost_usd": 414.68,
-        "availability": 0.966781,
+        "latency_ms": 184.07,
+        "cost_usd": 0.0,
+        "availability": 0.976596,
         "gen_feat_1": 489.74,
         "gen_feat_2": 0.487447,
         "gen_feat_3": 486.76
       }
     },
     {
-      "id": "t_flight_booking_international_gen_2",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_4",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_4",
-      "name": "IFBS.booking (Gen p_gen_4)",
+      "name": "CRS.booking (Gen p_gen_4)",
       "features": {
-        "latency_ms": 802.29,
-        "cost_usd": 805.78,
-        "availability": 0.988419,
+        "latency_ms": 318.86,
+        "cost_usd": 255.49,
+        "availability": 0.998504,
         "gen_feat_1": 509.12,
         "gen_feat_2": 0.493932,
         "gen_feat_3": 494.56
       }
     },
     {
-      "id": "t_flight_booking_international_gen_3",
-      "task_id": "t_flight_booking_international",
+      "id": "t_flight_booking_domestic_gen_4",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_gen_5",
-      "name": "IFBS.booking (Gen p_gen_5)",
+      "name": "DFBS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 785.65,
-        "cost_usd": 832.67,
+        "latency_ms": 654.71,
+        "cost_usd": 426.49,
         "availability": 1.0,
         "gen_feat_1": 498.69,
         "gen_feat_2": 0.506699,
@@ -672,27 +679,27 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_5",
-      "task_id": "t_flight_booking_international",
+      "id": "t_travel_insurance_gen_4",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_attractions_b",
-      "name": "IFBS.booking (Gen p_attractions_b)",
+      "name": "TIS.getInsurance (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 763.55,
-        "cost_usd": 806.59,
-        "availability": 0.973216,
+        "latency_ms": 234.94,
+        "cost_usd": 54.1,
+        "availability": 0.990098,
         "gen_feat_1": 490.91,
         "gen_feat_2": 0.504181,
         "gen_feat_3": 493.32
       }
     },
     {
-      "id": "t_flight_booking_international_gen_6",
-      "task_id": "t_flight_booking_international",
+      "id": "t_accommodation_booking_gen_5",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_a",
-      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "name": "ABS.booking (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 775.31,
-        "cost_usd": 813.89,
+        "latency_ms": 427.42,
+        "cost_usd": 942.92,
         "availability": 1.0,
         "gen_feat_1": 514.34,
         "gen_feat_2": 0.490809,
@@ -700,13 +707,13 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_7",
-      "task_id": "t_flight_booking_international",
+      "id": "t_attractions_search_gen_5",
+      "task_id": "t_attractions_search",
       "provider_id": "p_dom_air_b",
-      "name": "IFBS.booking (Gen p_dom_air_b)",
+      "name": "ASS.getAttractions (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 774.09,
-        "cost_usd": 796.86,
+        "latency_ms": 178.64,
+        "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 509.97,
         "gen_feat_2": 0.50639,
@@ -714,49 +721,49 @@
       }
     },
     {
-      "id": "t_flight_booking_international_gen_8",
-      "task_id": "t_flight_booking_international",
+      "id": "t_car_rental_booking_gen_5",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_a",
-      "name": "IFBS.booking (Gen p_int_air_a)",
+      "name": "CRS.booking (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 802.89,
-        "cost_usd": 832.54,
-        "availability": 0.995867,
+        "latency_ms": 319.1,
+        "cost_usd": 263.98,
+        "availability": 1.0,
         "gen_feat_1": 500.61,
         "gen_feat_2": 0.492753,
         "gen_feat_3": 489.35
       }
     },
     {
-      "id": "t_travel_insurance_gen_2",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_5",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_int_air_b",
-      "name": "TIS.getInsurance (Gen p_int_air_b)",
+      "name": "DFBS.booking (Gen p_int_air_b)",
       "features": {
-        "latency_ms": 239.89,
-        "cost_usd": 54.54,
-        "availability": 0.978354,
+        "latency_ms": 649.71,
+        "cost_usd": 416.51,
+        "availability": 0.966579,
         "gen_feat_1": 504.59,
         "gen_feat_2": 0.502031,
         "gen_feat_3": 500.67
       }
     },
     {
-      "id": "t_travel_insurance_gen_3",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_international_gen_5",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_a",
-      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "name": "IFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 235.94,
-        "cost_usd": 55.24,
-        "availability": 1.0,
+        "latency_ms": 766.81,
+        "cost_usd": 823.65,
+        "availability": 0.990985,
         "gen_feat_1": 510.78,
         "gen_feat_2": 0.49515,
         "gen_feat_3": 514.3
       }
     },
     {
-      "id": "t_travel_insurance_gen_4",
+      "id": "t_travel_insurance_gen_5",
       "task_id": "t_travel_insurance",
       "provider_id": "p_ins_b",
       "name": "TIS.getInsurance (Gen p_ins_b)",
@@ -770,13 +777,13 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_5",
-      "task_id": "t_travel_insurance",
+      "id": "t_accommodation_booking_gen_6",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_hotel_a",
-      "name": "TIS.getInsurance (Gen p_hotel_a)",
+      "name": "ABS.booking (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 237.46,
-        "cost_usd": 55.4,
+        "latency_ms": 425.46,
+        "cost_usd": 956.87,
         "availability": 1.0,
         "gen_feat_1": 502.98,
         "gen_feat_2": 0.490074,
@@ -784,41 +791,41 @@
       }
     },
     {
-      "id": "t_travel_insurance_gen_6",
-      "task_id": "t_travel_insurance",
+      "id": "t_attractions_search_gen_6",
+      "task_id": "t_attractions_search",
       "provider_id": "p_hotel_b",
-      "name": "TIS.getInsurance (Gen p_hotel_b)",
+      "name": "ASS.getAttractions (Gen p_hotel_b)",
       "features": {
-        "latency_ms": 246.8,
-        "cost_usd": 55.95,
-        "availability": 0.997177,
+        "latency_ms": 185.1,
+        "cost_usd": 0.0,
+        "availability": 0.995177,
         "gen_feat_1": 498.91,
         "gen_feat_2": 0.494214,
         "gen_feat_3": 502.98
       }
     },
     {
-      "id": "t_travel_insurance_gen_7",
-      "task_id": "t_travel_insurance",
+      "id": "t_car_rental_booking_gen_6",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_car_a",
-      "name": "TIS.getInsurance (Gen p_car_a)",
+      "name": "CRS.booking (Gen p_car_a)",
       "features": {
-        "latency_ms": 246.54,
-        "cost_usd": 54.9,
-        "availability": 0.99944,
+        "latency_ms": 318.44,
+        "cost_usd": 259.53,
+        "availability": 0.992423,
         "gen_feat_1": 492.97,
         "gen_feat_2": 0.512985,
         "gen_feat_3": 497.1
       }
     },
     {
-      "id": "t_travel_insurance_gen_8",
-      "task_id": "t_travel_insurance",
+      "id": "t_flight_booking_domestic_gen_6",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_car_b",
-      "name": "TIS.getInsurance (Gen p_car_b)",
+      "name": "DFBS.booking (Gen p_car_b)",
       "features": {
-        "latency_ms": 245.14,
-        "cost_usd": 53.91,
+        "latency_ms": 663.92,
+        "cost_usd": 411.7,
         "availability": 1.0,
         "gen_feat_1": 507.6,
         "gen_feat_2": 0.491973,
@@ -826,13 +833,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_2",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_6",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_gen_1",
-      "name": "ABS.booking (Gen p_gen_1)",
+      "name": "IFBS.booking (Gen p_gen_1)",
       "features": {
-        "latency_ms": 417.7,
-        "cost_usd": 957.65,
+        "latency_ms": 757.68,
+        "cost_usd": 826.61,
         "availability": 1.0,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.487995,
@@ -840,21 +847,21 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_3",
-      "task_id": "t_accommodation_booking",
+      "id": "t_travel_insurance_gen_6",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_gen_2",
-      "name": "ABS.booking (Gen p_gen_2)",
+      "name": "TIS.getInsurance (Gen p_gen_2)",
       "features": {
-        "latency_ms": 435.3,
-        "cost_usd": 943.55,
-        "availability": 0.98734,
+        "latency_ms": 242.96,
+        "cost_usd": 54.63,
+        "availability": 0.992317,
         "gen_feat_1": 490.66,
         "gen_feat_2": 0.512804,
         "gen_feat_3": 508.59
       }
     },
     {
-      "id": "t_accommodation_booking_gen_4",
+      "id": "t_accommodation_booking_gen_7",
       "task_id": "t_accommodation_booking",
       "provider_id": "p_gen_3",
       "name": "ABS.booking (Gen p_gen_3)",
@@ -868,41 +875,41 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_5",
-      "task_id": "t_accommodation_booking",
+      "id": "t_attractions_search_gen_7",
+      "task_id": "t_attractions_search",
       "provider_id": "p_gen_4",
-      "name": "ABS.booking (Gen p_gen_4)",
+      "name": "ASS.getAttractions (Gen p_gen_4)",
       "features": {
-        "latency_ms": 437.83,
-        "cost_usd": 931.98,
-        "availability": 0.989306,
+        "latency_ms": 183.28,
+        "cost_usd": 0.0,
+        "availability": 0.992297,
         "gen_feat_1": 486.79,
         "gen_feat_2": 0.511194,
         "gen_feat_3": 509.55
       }
     },
     {
-      "id": "t_accommodation_booking_gen_6",
-      "task_id": "t_accommodation_booking",
+      "id": "t_car_rental_booking_gen_7",
+      "task_id": "t_car_rental_booking",
       "provider_id": "p_gen_5",
-      "name": "ABS.booking (Gen p_gen_5)",
+      "name": "CRS.booking (Gen p_gen_5)",
       "features": {
-        "latency_ms": 441.94,
-        "cost_usd": 938.72,
-        "availability": 1.0,
+        "latency_ms": 318.61,
+        "cost_usd": 256.91,
+        "availability": 0.998423,
         "gen_feat_1": 500.85,
         "gen_feat_2": 0.494949,
         "gen_feat_3": 494.14
       }
     },
     {
-      "id": "t_accommodation_booking_gen_7",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_domestic_gen_7",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_attractions_a",
-      "name": "ABS.booking (Gen p_attractions_a)",
+      "name": "DFBS.booking (Gen p_attractions_a)",
       "features": {
-        "latency_ms": 438.16,
-        "cost_usd": 938.79,
+        "latency_ms": 662.33,
+        "cost_usd": 415.05,
         "availability": 1.0,
         "gen_feat_1": 485.27,
         "gen_feat_2": 0.498913,
@@ -910,13 +917,13 @@
       }
     },
     {
-      "id": "t_accommodation_booking_gen_8",
-      "task_id": "t_accommodation_booking",
+      "id": "t_flight_booking_international_gen_7",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_attractions_b",
-      "name": "ABS.booking (Gen p_attractions_b)",
+      "name": "IFBS.booking (Gen p_attractions_b)",
       "features": {
-        "latency_ms": 418.07,
-        "cost_usd": 922.82,
+        "latency_ms": 758.36,
+        "cost_usd": 796.54,
         "availability": 1.0,
         "gen_feat_1": 497.81,
         "gen_feat_2": 0.502515,
@@ -924,13 +931,13 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_2",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_7",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_dom_air_a",
-      "name": "CRS.booking (Gen p_dom_air_a)",
+      "name": "TIS.getInsurance (Gen p_dom_air_a)",
       "features": {
-        "latency_ms": 312.13,
-        "cost_usd": 261.53,
+        "latency_ms": 241.65,
+        "cost_usd": 55.32,
         "availability": 1.0,
         "gen_feat_1": 512.64,
         "gen_feat_2": 0.496089,
@@ -938,35 +945,35 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_3",
-      "task_id": "t_car_rental_booking",
+      "id": "t_accommodation_booking_gen_8",
+      "task_id": "t_accommodation_booking",
       "provider_id": "p_dom_air_b",
-      "name": "CRS.booking (Gen p_dom_air_b)",
+      "name": "ABS.booking (Gen p_dom_air_b)",
       "features": {
-        "latency_ms": 313.91,
-        "cost_usd": 257.49,
-        "availability": 0.98681,
+        "latency_ms": 435.43,
+        "cost_usd": 940.83,
+        "availability": 0.988804,
         "gen_feat_1": 512.87,
         "gen_feat_2": 0.505241,
         "gen_feat_3": 507.29
       }
     },
     {
-      "id": "t_car_rental_booking_gen_4",
-      "task_id": "t_car_rental_booking",
+      "id": "t_attractions_search_gen_8",
+      "task_id": "t_attractions_search",
       "provider_id": "p_int_air_a",
-      "name": "CRS.booking (Gen p_int_air_a)",
+      "name": "ASS.getAttractions (Gen p_int_air_a)",
       "features": {
-        "latency_ms": 302.5,
-        "cost_usd": 253.26,
-        "availability": 0.988174,
+        "latency_ms": 175.64,
+        "cost_usd": 0.0,
+        "availability": 0.993164,
         "gen_feat_1": 486.1,
         "gen_feat_2": 0.485054,
         "gen_feat_3": 503.99
       }
     },
     {
-      "id": "t_car_rental_booking_gen_5",
+      "id": "t_car_rental_booking_gen_8",
       "task_id": "t_car_rental_booking",
       "provider_id": "p_int_air_b",
       "name": "CRS.booking (Gen p_int_air_b)",
@@ -980,82 +987,1062 @@
       }
     },
     {
-      "id": "t_car_rental_booking_gen_6",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_domestic_gen_8",
+      "task_id": "t_flight_booking_domestic",
       "provider_id": "p_ins_a",
-      "name": "CRS.booking (Gen p_ins_a)",
+      "name": "DFBS.booking (Gen p_ins_a)",
       "features": {
-        "latency_ms": 315.37,
-        "cost_usd": 257.45,
-        "availability": 0.991843,
+        "latency_ms": 661.27,
+        "cost_usd": 415.88,
+        "availability": 0.986834,
         "gen_feat_1": 510.59,
         "gen_feat_2": 0.501464,
         "gen_feat_3": 495.6
       }
     },
     {
-      "id": "t_car_rental_booking_gen_7",
-      "task_id": "t_car_rental_booking",
+      "id": "t_flight_booking_international_gen_8",
+      "task_id": "t_flight_booking_international",
       "provider_id": "p_ins_b",
-      "name": "CRS.booking (Gen p_ins_b)",
+      "name": "IFBS.booking (Gen p_ins_b)",
       "features": {
-        "latency_ms": 311.72,
-        "cost_usd": 255.51,
-        "availability": 0.984838,
+        "latency_ms": 784.34,
+        "cost_usd": 805.83,
+        "availability": 0.97489,
         "gen_feat_1": 498.99,
         "gen_feat_2": 0.505672,
         "gen_feat_3": 506.54
       }
     },
     {
-      "id": "t_car_rental_booking_gen_8",
-      "task_id": "t_car_rental_booking",
+      "id": "t_travel_insurance_gen_8",
+      "task_id": "t_travel_insurance",
       "provider_id": "p_hotel_a",
-      "name": "CRS.booking (Gen p_hotel_a)",
+      "name": "TIS.getInsurance (Gen p_hotel_a)",
       "features": {
-        "latency_ms": 306.59,
-        "cost_usd": 258.27,
+        "latency_ms": 237.36,
+        "cost_usd": 54.63,
         "availability": 1.0,
         "gen_feat_1": 512.19,
         "gen_feat_2": 0.506375,
         "gen_feat_3": 513.91
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_parallel",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_as",
-              "kind": "TASK",
-              "task_id": "t_attractions_search"
-            },
-            {
-              "id": "n_booking_flow",
-              "kind": "SEQ",
-              "children": [
-                {
-                  "id": "n_flight_choice",
-                  "kind": "XOR",
-                  "branches": [
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-                      "p": 0.6,
-                      "child": {
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-                        "kind": "TASK",
-                        "task_id": "t_flight_booking_domestic"
-                      }
-                    },
-                    {
-                      "p": 0.4,
-                      "child": {
+    },
+    {
+      "id": "t_accommodation_booking_gen_9",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_hotel_b",
+      "name": "ABS.booking (Gen p_hotel_b)",
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+        "cost_usd": 950.2,
+        "availability": 1.0,
+        "gen_feat_1": 500.26,
+        "gen_feat_2": 0.490031,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_9",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_a",
+      "name": "ASS.getAttractions (Gen p_car_a)",
+      "features": {
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+        "gen_feat_1": 513.17,
+        "gen_feat_2": 0.485635,
+        "gen_feat_3": 501.55
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_9",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_car_b",
+      "name": "CRS.booking (Gen p_car_b)",
+      "features": {
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+        "cost_usd": 254.45,
+        "availability": 0.983777,
+        "gen_feat_1": 494.52,
+        "gen_feat_2": 0.498931,
+        "gen_feat_3": 511.43
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_9",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_gen_1",
+      "name": "DFBS.booking (Gen p_gen_1)",
+      "features": {
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+        "cost_usd": 408.12,
+        "availability": 0.962641,
+        "gen_feat_1": 488.3,
+        "gen_feat_2": 0.490801,
+        "gen_feat_3": 512.68
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_9",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_gen_2",
+      "name": "IFBS.booking (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 811.18,
+        "availability": 0.964168,
+        "gen_feat_1": 504.72,
+        "gen_feat_2": 0.513448,
+        "gen_feat_3": 486.86
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_9",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_gen_3",
+      "name": "TIS.getInsurance (Gen p_gen_3)",
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+        "gen_feat_2": 0.510147,
+        "gen_feat_3": 496.27
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_10",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_gen_4",
+      "name": "ABS.booking (Gen p_gen_4)",
+      "features": {
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+        "cost_usd": 962.33,
+        "availability": 0.984144,
+        "gen_feat_1": 505.48,
+        "gen_feat_2": 0.506446,
+        "gen_feat_3": 504.14
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_10",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_gen_5",
+      "name": "ASS.getAttractions (Gen p_gen_5)",
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+        "gen_feat_2": 0.508852,
+        "gen_feat_3": 498.33
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_10",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_attractions_a",
+      "name": "CRS.booking (Gen p_attractions_a)",
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+        "gen_feat_3": 506.8
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_10",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_attractions_b",
+      "name": "DFBS.booking (Gen p_attractions_b)",
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+        "cost_usd": 410.81,
+        "availability": 0.961011,
+        "gen_feat_1": 511.46,
+        "gen_feat_2": 0.495467,
+        "gen_feat_3": 485.55
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_10",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_dom_air_a",
+      "name": "IFBS.booking (Gen p_dom_air_a)",
+      "features": {
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+        "cost_usd": 797.8,
+        "availability": 0.957171,
+        "gen_feat_1": 492.52,
+        "gen_feat_2": 0.492049,
+        "gen_feat_3": 500.77
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_10",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_dom_air_b",
+      "name": "TIS.getInsurance (Gen p_dom_air_b)",
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+        "cost_usd": 54.56,
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+        "gen_feat_2": 0.500884,
+        "gen_feat_3": 496.98
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_11",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_int_air_a",
+      "name": "ABS.booking (Gen p_int_air_a)",
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+        "cost_usd": 954.2,
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+      }
+    },
+    {
+      "id": "t_attractions_search_gen_11",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_int_air_b",
+      "name": "ASS.getAttractions (Gen p_int_air_b)",
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+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_11",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_ins_a",
+      "name": "CRS.booking (Gen p_ins_a)",
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+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_11",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_ins_b",
+      "name": "DFBS.booking (Gen p_ins_b)",
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+        "cost_usd": 425.63,
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+        "gen_feat_1": 512.65,
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+        "gen_feat_3": 492.51
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_11",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_hotel_a",
+      "name": "IFBS.booking (Gen p_hotel_a)",
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+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_11",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_hotel_b",
+      "name": "TIS.getInsurance (Gen p_hotel_b)",
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+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_12",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_car_a",
+      "name": "ABS.booking (Gen p_car_a)",
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+      }
+    },
+    {
+      "id": "t_attractions_search_gen_12",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_car_b",
+      "name": "ASS.getAttractions (Gen p_car_b)",
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+    },
+    {
+      "id": "t_flight_booking_domestic_gen_19",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_int_air_a",
+      "name": "DFBS.booking (Gen p_int_air_a)",
+      "features": {
+        "latency_ms": 667.0,
+        "cost_usd": 413.25,
+        "availability": 0.962466,
+        "gen_feat_1": 513.82,
+        "gen_feat_2": 0.503379,
+        "gen_feat_3": 509.66
+      }
+    },
+    {
+      "id": "t_flight_booking_international_gen_19",
+      "task_id": "t_flight_booking_international",
+      "provider_id": "p_int_air_b",
+      "name": "IFBS.booking (Gen p_int_air_b)",
+      "features": {
+        "latency_ms": 758.34,
+        "cost_usd": 834.24,
+        "availability": 0.969654,
+        "gen_feat_1": 491.8,
+        "gen_feat_2": 0.508679,
+        "gen_feat_3": 487.73
+      }
+    },
+    {
+      "id": "t_travel_insurance_gen_19",
+      "task_id": "t_travel_insurance",
+      "provider_id": "p_ins_a",
+      "name": "TIS.getInsurance (Gen p_ins_a)",
+      "features": {
+        "latency_ms": 237.08,
+        "cost_usd": 56.6,
+        "availability": 1.0,
+        "gen_feat_1": 492.29,
+        "gen_feat_2": 0.511799,
+        "gen_feat_3": 491.54
+      }
+    },
+    {
+      "id": "t_accommodation_booking_gen_20",
+      "task_id": "t_accommodation_booking",
+      "provider_id": "p_ins_b",
+      "name": "ABS.booking (Gen p_ins_b)",
+      "features": {
+        "latency_ms": 420.13,
+        "cost_usd": 956.38,
+        "availability": 0.993592,
+        "gen_feat_1": 495.98,
+        "gen_feat_2": 0.505424,
+        "gen_feat_3": 514.02
+      }
+    },
+    {
+      "id": "t_attractions_search_gen_20",
+      "task_id": "t_attractions_search",
+      "provider_id": "p_hotel_a",
+      "name": "ASS.getAttractions (Gen p_hotel_a)",
+      "features": {
+        "latency_ms": 182.4,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.3,
+        "gen_feat_2": 0.494928,
+        "gen_feat_3": 505.76
+      }
+    },
+    {
+      "id": "t_car_rental_booking_gen_20",
+      "task_id": "t_car_rental_booking",
+      "provider_id": "p_hotel_b",
+      "name": "CRS.booking (Gen p_hotel_b)",
+      "features": {
+        "latency_ms": 319.09,
+        "cost_usd": 255.7,
+        "availability": 1.0,
+        "gen_feat_1": 488.78,
+        "gen_feat_2": 0.508927,
+        "gen_feat_3": 505.98
+      }
+    },
+    {
+      "id": "t_flight_booking_domestic_gen_20",
+      "task_id": "t_flight_booking_domestic",
+      "provider_id": "p_car_a",
+      "name": "DFBS.booking (Gen p_car_a)",
+      "features": {
+        "latency_ms": 649.56,
+        "cost_usd": 413.08,
+        "availability": 0.98686,
+        "gen_feat_1": 504.29,
+        "gen_feat_2": 0.485327,
+        "gen_feat_3": 497.69
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_parallel",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_as",
+              "kind": "TASK",
+              "task_id": "t_attractions_search"
+            },
+            {
+              "id": "n_booking_flow",
+              "kind": "SEQ",
+              "children": [
+                {
+                  "id": "n_flight_choice",
+                  "kind": "XOR",
+                  "branches": [
+                    {
+                      "p": 0.6,
+                      "child": {
+                        "id": "n_dfb",
+                        "kind": "TASK",
+                        "task_id": "t_flight_booking_domestic"
+                      }
+                    },
+                    {
+                      "p": 0.4,
+                      "child": {
                         "id": "n_intl_seq",
                         "kind": "SEQ",
                         "children": [
@@ -1233,19 +2220,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1301.98,
+      "value": 1349.99,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_accommodation_booking_cost_usd_1",
+      "id": "gen_c_local_t_accommodation_booking_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
         "t_accommodation_booking"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 927.58,
+      "value": 499.62,
       "hard": false
     },
     {
@@ -1257,16 +2244,6 @@
         "t_attractions_search"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_accommodation_booking",
-        "t_car_rental_booking"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_many_hard.json b/experimentation/instances/bultan2003-warehouse-example_many_hard.json
index e397c2b..bf87356 100644
--- a/experimentation/instances/bultan2003-warehouse-example_many_hard.json
+++ b/experimentation/instances/bultan2003-warehouse-example_many_hard.json
@@ -3,13 +3,22 @@
     "id": "bultan2003-warehouse-example_many_hard",
     "name": "Warehouse Composition example (Bultan et al. 2003) [many, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -460,13 +469,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +483,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +497,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +525,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +539,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +553,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +567,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +595,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +609,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +637,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +707,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -956,19 +1301,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": true
     },
     {
@@ -980,16 +1325,6 @@
         "t_bill1"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_many_soft.json b/experimentation/instances/bultan2003-warehouse-example_many_soft.json
index 1b0e66d..b680b89 100644
--- a/experimentation/instances/bultan2003-warehouse-example_many_soft.json
+++ b/experimentation/instances/bultan2003-warehouse-example_many_soft.json
@@ -3,13 +3,20 @@
     "id": "bultan2003-warehouse-example_many_soft",
     "name": "Warehouse Composition example (Bultan et al. 2003) [many, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -460,13 +467,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +481,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +495,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +523,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +537,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +551,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +565,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +593,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +607,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +635,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +705,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -956,19 +1299,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": false
     },
     {
@@ -980,16 +1323,6 @@
         "t_bill1"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_mono_one_hard.json b/experimentation/instances/bultan2003-warehouse-example_mono_one_hard.json
index e6726a8..f0cfb3a 100644
--- a/experimentation/instances/bultan2003-warehouse-example_mono_one_hard.json
+++ b/experimentation/instances/bultan2003-warehouse-example_mono_one_hard.json
@@ -3,13 +3,22 @@
     "id": "bultan2003-warehouse-example_mono_one_hard",
     "name": "Warehouse Composition example (Bultan et al. 2003) [mono_one, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -460,13 +469,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +483,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +497,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +525,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +539,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +553,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +567,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +595,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +609,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +637,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +707,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -946,19 +1291,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": true
     },
     {
@@ -970,16 +1315,6 @@
         "t_bill1"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_mono_one_soft.json b/experimentation/instances/bultan2003-warehouse-example_mono_one_soft.json
index 8792b94..ddd1bf5 100644
--- a/experimentation/instances/bultan2003-warehouse-example_mono_one_soft.json
+++ b/experimentation/instances/bultan2003-warehouse-example_mono_one_soft.json
@@ -3,13 +3,20 @@
     "id": "bultan2003-warehouse-example_mono_one_soft",
     "name": "Warehouse Composition example (Bultan et al. 2003) [mono_one, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -460,13 +467,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +481,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +495,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +523,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +537,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +551,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +565,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +593,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +607,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +635,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +705,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -946,19 +1289,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": false
     },
     {
@@ -970,16 +1313,6 @@
         "t_bill1"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_mono_utility_hard.json b/experimentation/instances/bultan2003-warehouse-example_mono_utility_hard.json
index 0509b44..a986f94 100644
--- a/experimentation/instances/bultan2003-warehouse-example_mono_utility_hard.json
+++ b/experimentation/instances/bultan2003-warehouse-example_mono_utility_hard.json
@@ -3,13 +3,22 @@
     "id": "bultan2003-warehouse-example_mono_utility_hard",
     "name": "Warehouse Composition example (Bultan et al. 2003) [mono_utility, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -460,13 +469,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +483,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +497,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +525,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +539,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +553,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +567,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +595,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +609,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +637,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +707,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -956,19 +1301,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": true
     },
     {
@@ -980,16 +1325,6 @@
         "t_bill1"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_mono_utility_soft.json b/experimentation/instances/bultan2003-warehouse-example_mono_utility_soft.json
index e505794..a6d0b6e 100644
--- a/experimentation/instances/bultan2003-warehouse-example_mono_utility_soft.json
+++ b/experimentation/instances/bultan2003-warehouse-example_mono_utility_soft.json
@@ -3,13 +3,20 @@
     "id": "bultan2003-warehouse-example_mono_utility_soft",
     "name": "Warehouse Composition example (Bultan et al. 2003) [mono_utility, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -460,13 +467,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +481,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +495,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +523,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +537,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +551,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +565,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +593,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +607,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +635,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +705,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -956,19 +1299,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": false
     },
     {
@@ -980,16 +1323,6 @@
         "t_bill1"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_multi_hard.json b/experimentation/instances/bultan2003-warehouse-example_multi_hard.json
index 408f87e..e8b14a5 100644
--- a/experimentation/instances/bultan2003-warehouse-example_multi_hard.json
+++ b/experimentation/instances/bultan2003-warehouse-example_multi_hard.json
@@ -3,13 +3,22 @@
     "id": "bultan2003-warehouse-example_multi_hard",
     "name": "Warehouse Composition example (Bultan et al. 2003) [multi, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -460,13 +469,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +483,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +497,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +525,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +539,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +553,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +567,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +595,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +609,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +637,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +707,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -950,19 +1295,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": true
     },
     {
@@ -974,16 +1319,6 @@
         "t_bill1"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/bultan2003-warehouse-example_multi_soft.json b/experimentation/instances/bultan2003-warehouse-example_multi_soft.json
index 057d45f..084011d 100644
--- a/experimentation/instances/bultan2003-warehouse-example_multi_soft.json
+++ b/experimentation/instances/bultan2003-warehouse-example_multi_soft.json
@@ -3,13 +3,20 @@
     "id": "bultan2003-warehouse-example_multi_soft",
     "name": "Warehouse Composition example (Bultan et al. 2003) [multi, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Problem instance derived from Example 2.1 and Example 3.1 (store-bank-warehouse) in Bultan et al., WWW'03.",
     "paper": {
       "title": "Conversation Specification: A New Approach to Design and Analysis of E-Service Composition",
       "authors": "T. Bultan et al.",
       "year": 2003,
       "doi": "10.1145/775152.775210"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -460,13 +467,13 @@
       }
     },
     {
-      "id": "t_authorize_gen_3",
-      "task_id": "t_authorize",
+      "id": "t_bill1_gen_2",
+      "task_id": "t_bill1",
       "provider_id": "p_wh2",
-      "name": "authorize (Gen p_wh2)",
+      "name": "bill1 (Gen p_wh2)",
       "features": {
-        "latency_ms": 56.53,
-        "cost_usd": 0.01,
+        "latency_ms": 77.09,
+        "cost_usd": 0.02,
         "availability": 1.0,
         "gen_feat_1": 512.13,
         "gen_feat_2": 0.51125,
@@ -474,12 +481,12 @@
       }
     },
     {
-      "id": "t_ok_gen_2",
-      "task_id": "t_ok",
+      "id": "t_bill2_gen_2",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_1",
-      "name": "ok (Gen p_gen_1)",
+      "name": "bill2 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 46.32,
+        "latency_ms": 80.28,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 489.76,
@@ -488,7 +495,7 @@
       }
     },
     {
-      "id": "t_ok_gen_3",
+      "id": "t_ok_gen_2",
       "task_id": "t_ok",
       "provider_id": "p_gen_2",
       "name": "ok (Gen p_gen_2)",
@@ -516,12 +523,12 @@
       }
     },
     {
-      "id": "t_order1_gen_3",
-      "task_id": "t_order1",
+      "id": "t_order2_gen_2",
+      "task_id": "t_order2",
       "provider_id": "p_gen_4",
-      "name": "order1 (Gen p_gen_4)",
+      "name": "order2 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 64.28,
+        "latency_ms": 69.22,
         "cost_usd": 0.02,
         "availability": 0.972736,
         "gen_feat_1": 486.2,
@@ -530,13 +537,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_2",
-      "task_id": "t_receipt1",
+      "id": "t_payment1_gen_2",
+      "task_id": "t_payment1",
       "provider_id": "p_gen_5",
-      "name": "receipt1 (Gen p_gen_5)",
+      "name": "payment1 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 77.78,
-        "cost_usd": 0.01,
+        "latency_ms": 87.5,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 512.08,
         "gen_feat_2": 0.510897,
@@ -544,13 +551,13 @@
       }
     },
     {
-      "id": "t_receipt1_gen_3",
-      "task_id": "t_receipt1",
+      "id": "t_payment2_gen_2",
+      "task_id": "t_payment2",
       "provider_id": "p_store",
-      "name": "receipt1 (Gen p_store)",
+      "name": "payment2 (Gen p_store)",
       "features": {
-        "latency_ms": 80.11,
-        "cost_usd": 0.02,
+        "latency_ms": 95.13,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 508.14,
         "gen_feat_2": 0.486315,
@@ -558,26 +565,26 @@
       }
     },
     {
-      "id": "t_bill1_gen_2",
-      "task_id": "t_bill1",
+      "id": "t_receipt1_gen_2",
+      "task_id": "t_receipt1",
       "provider_id": "p_bank",
-      "name": "bill1 (Gen p_bank)",
+      "name": "receipt1 (Gen p_bank)",
       "features": {
-        "latency_ms": 77.07,
+        "latency_ms": 82.21,
         "cost_usd": 0.02,
-        "availability": 0.989736,
+        "availability": 0.988745,
         "gen_feat_1": 511.49,
         "gen_feat_2": 0.492918,
         "gen_feat_3": 514.68
       }
     },
     {
-      "id": "t_bill1_gen_3",
-      "task_id": "t_bill1",
+      "id": "t_receipt2_gen_2",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh1",
-      "name": "bill1 (Gen p_wh1)",
+      "name": "receipt2 (Gen p_wh1)",
       "features": {
-        "latency_ms": 75.44,
+        "latency_ms": 85.49,
         "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 510.22,
@@ -586,13 +593,13 @@
       }
     },
     {
-      "id": "t_payment1_gen_2",
-      "task_id": "t_payment1",
+      "id": "t_authorize_gen_3",
+      "task_id": "t_authorize",
       "provider_id": "p_wh2",
-      "name": "payment1 (Gen p_wh2)",
+      "name": "authorize (Gen p_wh2)",
       "features": {
-        "latency_ms": 90.7,
-        "cost_usd": 0.03,
+        "latency_ms": 55.43,
+        "cost_usd": 0.01,
         "availability": 1.0,
         "gen_feat_1": 490.92,
         "gen_feat_2": 0.486279,
@@ -600,27 +607,27 @@
       }
     },
     {
-      "id": "t_payment1_gen_3",
-      "task_id": "t_payment1",
+      "id": "t_bill1_gen_3",
+      "task_id": "t_bill1",
       "provider_id": "p_gen_1",
-      "name": "payment1 (Gen p_gen_1)",
+      "name": "bill1 (Gen p_gen_1)",
       "features": {
-        "latency_ms": 89.57,
-        "cost_usd": 0.03,
-        "availability": 0.990323,
+        "latency_ms": 74.64,
+        "cost_usd": 0.01,
+        "availability": 0.989332,
         "gen_feat_1": 509.49,
         "gen_feat_2": 0.510492,
         "gen_feat_3": 494.55
       }
     },
     {
-      "id": "t_order2_gen_2",
-      "task_id": "t_order2",
+      "id": "t_bill2_gen_3",
+      "task_id": "t_bill2",
       "provider_id": "p_gen_2",
-      "name": "order2 (Gen p_gen_2)",
+      "name": "bill2 (Gen p_gen_2)",
       "features": {
-        "latency_ms": 71.14,
-        "cost_usd": 0.02,
+        "latency_ms": 79.27,
+        "cost_usd": 0.01,
         "availability": 0.997499,
         "gen_feat_1": 498.73,
         "gen_feat_2": 0.505964,
@@ -628,69 +635,69 @@
       }
     },
     {
-      "id": "t_order2_gen_3",
-      "task_id": "t_order2",
+      "id": "t_ok_gen_3",
+      "task_id": "t_ok",
       "provider_id": "p_gen_3",
-      "name": "order2 (Gen p_gen_3)",
+      "name": "ok (Gen p_gen_3)",
       "features": {
-        "latency_ms": 71.51,
-        "cost_usd": 0.02,
-        "availability": 0.978474,
+        "latency_ms": 45.97,
+        "cost_usd": 0.01,
+        "availability": 0.979454,
         "gen_feat_1": 495.91,
         "gen_feat_2": 0.487052,
         "gen_feat_3": 495.32
       }
     },
     {
-      "id": "t_receipt2_gen_2",
-      "task_id": "t_receipt2",
+      "id": "t_order1_gen_3",
+      "task_id": "t_order1",
       "provider_id": "p_gen_4",
-      "name": "receipt2 (Gen p_gen_4)",
+      "name": "order1 (Gen p_gen_4)",
       "features": {
-        "latency_ms": 85.95,
+        "latency_ms": 65.73,
         "cost_usd": 0.02,
-        "availability": 0.996183,
+        "availability": 0.997182,
         "gen_feat_1": 507.05,
         "gen_feat_2": 0.506274,
         "gen_feat_3": 489.81
       }
     },
     {
-      "id": "t_receipt2_gen_3",
-      "task_id": "t_receipt2",
+      "id": "t_order2_gen_3",
+      "task_id": "t_order2",
       "provider_id": "p_gen_5",
-      "name": "receipt2 (Gen p_gen_5)",
+      "name": "order2 (Gen p_gen_5)",
       "features": {
-        "latency_ms": 83.66,
-        "cost_usd": 0.01,
-        "availability": 0.973035,
+        "latency_ms": 68.9,
+        "cost_usd": 0.02,
+        "availability": 0.974011,
         "gen_feat_1": 491.17,
         "gen_feat_2": 0.494194,
         "gen_feat_3": 512.8
       }
     },
     {
-      "id": "t_bill2_gen_2",
-      "task_id": "t_bill2",
+      "id": "t_payment1_gen_3",
+      "task_id": "t_payment1",
       "provider_id": "p_store",
-      "name": "bill2 (Gen p_store)",
+      "name": "payment1 (Gen p_store)",
       "features": {
-        "latency_ms": 78.39,
-        "cost_usd": 0.02,
-        "availability": 0.991877,
+        "latency_ms": 90.46,
+        "cost_usd": 0.03,
+        "availability": 0.992871,
         "gen_feat_1": 493.57,
         "gen_feat_2": 0.506639,
         "gen_feat_3": 505.09
       }
     },
     {
-      "id": "t_bill2_gen_3",
-      "task_id": "t_bill2",
+      "id": "t_payment2_gen_3",
+      "task_id": "t_payment2",
       "provider_id": "p_bank",
-      "name": "bill2 (Gen p_bank)",
+      "name": "payment2 (Gen p_bank)",
       "features": {
-        "latency_ms": 79.37,
-        "cost_usd": 0.02,
+        "latency_ms": 96.67,
+        "cost_usd": 0.03,
         "availability": 1.0,
         "gen_feat_1": 513.41,
         "gen_feat_2": 0.503681,
@@ -698,32 +705,368 @@
       }
     },
     {
-      "id": "t_payment2_gen_2",
-      "task_id": "t_payment2",
+      "id": "t_receipt1_gen_3",
+      "task_id": "t_receipt1",
       "provider_id": "p_wh1",
-      "name": "payment2 (Gen p_wh1)",
+      "name": "receipt1 (Gen p_wh1)",
       "features": {
-        "latency_ms": 93.89,
-        "cost_usd": 0.03,
-        "availability": 0.984789,
+        "latency_ms": 79.06,
+        "cost_usd": 0.02,
+        "availability": 0.982817,
         "gen_feat_1": 505.36,
         "gen_feat_2": 0.49305,
         "gen_feat_3": 514.13
       }
     },
     {
-      "id": "t_payment2_gen_3",
-      "task_id": "t_payment2",
+      "id": "t_receipt2_gen_3",
+      "task_id": "t_receipt2",
       "provider_id": "p_wh2",
-      "name": "payment2 (Gen p_wh2)",
+      "name": "receipt2 (Gen p_wh2)",
       "features": {
-        "latency_ms": 92.96,
-        "cost_usd": 0.03,
-        "availability": 0.981651,
+        "latency_ms": 83.17,
+        "cost_usd": 0.02,
+        "availability": 0.979686,
         "gen_feat_1": 491.52,
         "gen_feat_2": 0.503183,
         "gen_feat_3": 492.47
       }
+    },
+    {
+      "id": "t_authorize_gen_4",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_1",
+      "name": "authorize (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 53.88,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 499.38,
+        "gen_feat_2": 0.494457,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_bill1_gen_4",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_2",
+      "name": "bill1 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 74.79,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 489.22,
+        "gen_feat_2": 0.508781,
+        "gen_feat_3": 503.47
+      }
+    },
+    {
+      "id": "t_bill2_gen_4",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_3",
+      "name": "bill2 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 76.28,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 511.73,
+        "gen_feat_2": 0.506837,
+        "gen_feat_3": 491.48
+      }
+    },
+    {
+      "id": "t_ok_gen_4",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_4",
+      "name": "ok (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 45.39,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 504.44,
+        "gen_feat_2": 0.50677,
+        "gen_feat_3": 490.84
+      }
+    },
+    {
+      "id": "t_order1_gen_4",
+      "task_id": "t_order1",
+      "provider_id": "p_gen_5",
+      "name": "order1 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 64.75,
+        "cost_usd": 0.02,
+        "availability": 0.995368,
+        "gen_feat_1": 503.07,
+        "gen_feat_2": 0.511063,
+        "gen_feat_3": 513.85
+      }
+    },
+    {
+      "id": "t_order2_gen_4",
+      "task_id": "t_order2",
+      "provider_id": "p_store",
+      "name": "order2 (Gen p_store)",
+      "features": {
+        "latency_ms": 69.85,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 505.45,
+        "gen_feat_2": 0.485955,
+        "gen_feat_3": 491.6
+      }
+    },
+    {
+      "id": "t_payment1_gen_4",
+      "task_id": "t_payment1",
+      "provider_id": "p_bank",
+      "name": "payment1 (Gen p_bank)",
+      "features": {
+        "latency_ms": 89.16,
+        "cost_usd": 0.03,
+        "availability": 0.978971,
+        "gen_feat_1": 506.12,
+        "gen_feat_2": 0.505503,
+        "gen_feat_3": 510.41
+      }
+    },
+    {
+      "id": "t_payment2_gen_4",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh1",
+      "name": "payment2 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 96.51,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 502.61,
+        "gen_feat_2": 0.500872,
+        "gen_feat_3": 511.5
+      }
+    },
+    {
+      "id": "t_receipt1_gen_4",
+      "task_id": "t_receipt1",
+      "provider_id": "p_wh2",
+      "name": "receipt1 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 80.8,
+        "cost_usd": 0.02,
+        "availability": 0.993192,
+        "gen_feat_1": 497.46,
+        "gen_feat_2": 0.513616,
+        "gen_feat_3": 486.35
+      }
+    },
+    {
+      "id": "t_receipt2_gen_4",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_1",
+      "name": "receipt2 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 87.2,
+        "cost_usd": 0.01,
+        "availability": 0.978006,
+        "gen_feat_1": 507.81,
+        "gen_feat_2": 0.511924,
+        "gen_feat_3": 501.68
+      }
+    },
+    {
+      "id": "t_authorize_gen_5",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_2",
+      "name": "authorize (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 55.52,
+        "cost_usd": 0.01,
+        "availability": 0.974453,
+        "gen_feat_1": 495.33,
+        "gen_feat_2": 0.509506,
+        "gen_feat_3": 497.14
+      }
+    },
+    {
+      "id": "t_bill1_gen_5",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_3",
+      "name": "bill1 (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 75.57,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 492.19,
+        "gen_feat_2": 0.486586,
+        "gen_feat_3": 490.35
+      }
+    },
+    {
+      "id": "t_bill2_gen_5",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_4",
+      "name": "bill2 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 77.84,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 496.09,
+        "gen_feat_2": 0.508474,
+        "gen_feat_3": 514.82
+      }
+    },
+    {
+      "id": "t_ok_gen_5",
+      "task_id": "t_ok",
+      "provider_id": "p_gen_5",
+      "name": "ok (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 43.78,
+        "cost_usd": 0.01,
+        "availability": 0.973886,
+        "gen_feat_1": 509.68,
+        "gen_feat_2": 0.504897,
+        "gen_feat_3": 498.83
+      }
+    },
+    {
+      "id": "t_order1_gen_5",
+      "task_id": "t_order1",
+      "provider_id": "p_store",
+      "name": "order1 (Gen p_store)",
+      "features": {
+        "latency_ms": 64.96,
+        "cost_usd": 0.02,
+        "availability": 0.980318,
+        "gen_feat_1": 491.05,
+        "gen_feat_2": 0.491285,
+        "gen_feat_3": 507.04
+      }
+    },
+    {
+      "id": "t_order2_gen_5",
+      "task_id": "t_order2",
+      "provider_id": "p_bank",
+      "name": "order2 (Gen p_bank)",
+      "features": {
+        "latency_ms": 69.98,
+        "cost_usd": 0.02,
+        "availability": 1.0,
+        "gen_feat_1": 512.86,
+        "gen_feat_2": 0.491732,
+        "gen_feat_3": 491.76
+      }
+    },
+    {
+      "id": "t_payment1_gen_5",
+      "task_id": "t_payment1",
+      "provider_id": "p_wh1",
+      "name": "payment1 (Gen p_wh1)",
+      "features": {
+        "latency_ms": 87.94,
+        "cost_usd": 0.03,
+        "availability": 0.997174,
+        "gen_feat_1": 493.29,
+        "gen_feat_2": 0.487966,
+        "gen_feat_3": 506.1
+      }
+    },
+    {
+      "id": "t_payment2_gen_5",
+      "task_id": "t_payment2",
+      "provider_id": "p_wh2",
+      "name": "payment2 (Gen p_wh2)",
+      "features": {
+        "latency_ms": 97.2,
+        "cost_usd": 0.03,
+        "availability": 1.0,
+        "gen_feat_1": 511.04,
+        "gen_feat_2": 0.48995,
+        "gen_feat_3": 493.08
+      }
+    },
+    {
+      "id": "t_receipt1_gen_5",
+      "task_id": "t_receipt1",
+      "provider_id": "p_gen_1",
+      "name": "receipt1 (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 79.61,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 507.66,
+        "gen_feat_2": 0.497265,
+        "gen_feat_3": 504.31
+      }
+    },
+    {
+      "id": "t_receipt2_gen_5",
+      "task_id": "t_receipt2",
+      "provider_id": "p_gen_2",
+      "name": "receipt2 (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 86.62,
+        "cost_usd": 0.01,
+        "availability": 0.977335,
+        "gen_feat_1": 503.99,
+        "gen_feat_2": 0.502461,
+        "gen_feat_3": 493.15
+      }
+    },
+    {
+      "id": "t_authorize_gen_6",
+      "task_id": "t_authorize",
+      "provider_id": "p_gen_3",
+      "name": "authorize (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 55.99,
+        "cost_usd": 0.01,
+        "availability": 0.99793,
+        "gen_feat_1": 506.53,
+        "gen_feat_2": 0.509189,
+        "gen_feat_3": 511.64
+      }
+    },
+    {
+      "id": "t_bill1_gen_6",
+      "task_id": "t_bill1",
+      "provider_id": "p_gen_4",
+      "name": "bill1 (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 74.05,
+        "cost_usd": 0.01,
+        "availability": 0.97079,
+        "gen_feat_1": 493.17,
+        "gen_feat_2": 0.496102,
+        "gen_feat_3": 487.15
+      }
+    },
+    {
+      "id": "t_bill2_gen_6",
+      "task_id": "t_bill2",
+      "provider_id": "p_gen_5",
+      "name": "bill2 (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 76.89,
+        "cost_usd": 0.01,
+        "availability": 0.968066,
+        "gen_feat_1": 508.39,
+        "gen_feat_2": 0.504321,
+        "gen_feat_3": 495.81
+      }
+    },
+    {
+      "id": "t_ok_gen_6",
+      "task_id": "t_ok",
+      "provider_id": "p_store",
+      "name": "ok (Gen p_store)",
+      "features": {
+        "latency_ms": 46.29,
+        "cost_usd": 0.01,
+        "availability": 1.0,
+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.493522,
+        "gen_feat_3": 490.64
+      }
     }
   ],
   "composition": {
@@ -950,19 +1293,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1318.72,
+      "value": 1329.92,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_authorize_cost_usd_1",
+      "id": "gen_c_local_t_payment2_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_authorize"
+        "t_payment2"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.01,
+      "value": 504.15,
       "hard": false
     },
     {
@@ -974,16 +1317,6 @@
         "t_bill1"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_authorize",
-        "t_payment2"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/cremaschi2018-textbook-access_many_hard.json b/experimentation/instances/cremaschi2018-textbook-access_many_hard.json
index ea39891..700744e 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_many_hard.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_many_hard.json
@@ -3,13 +3,22 @@
     "id": "cremaschi2018-textbook-access_many_hard",
     "name": "Book info retrieval (Cremaschi et al. 2018) [many, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -322,21 +331,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +359,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +373,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +387,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +415,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +443,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +485,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +555,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +639,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +653,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +695,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +709,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +751,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +779,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +793,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +835,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +863,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +877,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,97 +933,1077 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 489.16,
+        "latency_ms": 244.58,
         "cost_usd": 0.0,
-        "availability": 0.997048,
+        "availability": 1.0,
         "gen_feat_1": 498.8,
         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 490.4,
+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
+        "availability": 1.0,
         "gen_feat_1": 499.32,
         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 493.82,
+        "latency_ms": 345.67,
         "cost_usd": 0.0,
-        "availability": 0.963902,
+        "availability": 0.973839,
         "gen_feat_1": 513.54,
         "gen_feat_2": 0.514704,
         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 501.92,
+        "latency_ms": 401.54,
         "cost_usd": 0.0,
-        "availability": 0.987176,
+        "availability": 1.0,
         "gen_feat_1": 487.31,
         "gen_feat_2": 0.5052,
         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 497.11,
+        "latency_ms": 447.4,
         "cost_usd": 0.0,
-        "availability": 0.959066,
+        "availability": 0.983784,
         "gen_feat_1": 489.18,
         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
-            {
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 505.62,
+        "cost_usd": 0.0,
+        "availability": 0.99713,
+        "gen_feat_1": 503.01,
+        "gen_feat_2": 0.506712,
+        "gen_feat_3": 502.55
+      }
+    },
+    {
+      "id": "t_books_gen_10",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 254.31,
+        "cost_usd": 0.0,
+        "availability": 0.974866,
+        "gen_feat_1": 504.59,
+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 294.92,
+        "cost_usd": 0.0,
+        "availability": 0.986515,
+        "gen_feat_1": 509.4,
+        "gen_feat_2": 0.490838,
+        "gen_feat_3": 507.74
+      }
+    },
+    {
+      "id": "t_library_gen_10",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 355.61,
+        "cost_usd": 0.0,
+        "availability": 0.962059,
+        "gen_feat_1": 503.27,
+        "gen_feat_2": 0.496355,
+        "gen_feat_3": 492.86
+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 391.3,
+        "cost_usd": 0.0,
+        "availability": 0.967196,
+        "gen_feat_1": 485.28,
+        "gen_feat_2": 0.506168,
+        "gen_feat_3": 493.59
+      }
+    },
+    {
+      "id": "t_transit_gen_10",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 453.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 497.77,
+        "gen_feat_2": 0.497114,
+        "gen_feat_3": 501.1
+      }
+    },
+    {
+      "id": "t_archive_gen_11",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 495.04,
+        "cost_usd": 0.0,
+        "availability": 0.977696,
+        "gen_feat_1": 488.45,
+        "gen_feat_2": 0.507139,
+        "gen_feat_3": 498.59
+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 244.15,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.26,
+        "gen_feat_2": 0.489809,
+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 492.12,
+        "gen_feat_2": 0.494309,
+        "gen_feat_3": 494.97
+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.58,
+        "cost_usd": 0.0,
+        "availability": 0.959167,
+        "gen_feat_1": 498.23,
+        "gen_feat_2": 0.509638,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 410.35,
+        "cost_usd": 0.0,
+        "availability": 0.981439,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.513284,
+        "gen_feat_3": 504.35
+      }
+    },
+    {
+      "id": "t_transit_gen_11",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 447.67,
+        "cost_usd": 0.0,
+        "availability": 0.981101,
+        "gen_feat_1": 508.33,
+        "gen_feat_2": 0.502312,
+        "gen_feat_3": 490.82
+      }
+    },
+    {
+      "id": "t_archive_gen_12",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 498.22,
+        "cost_usd": 0.0,
+        "availability": 0.942858,
+        "gen_feat_1": 489.41,
+        "gen_feat_2": 0.506947,
+        "gen_feat_3": 500.51
+      }
+    },
+    {
+      "id": "t_books_gen_12",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
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+      "name": "Google Maps Geocoding API (Gen p_local)",
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+      "name": "Amazon Market API (Gen p_gen_2)",
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+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
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+      "name": "OPAC Library API (Gen p_gen_5)",
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+      "name": "Amazon Market API (Gen p_google)",
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+      "name": "Google Maps Geocoding API (Gen p_local)",
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+    {
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+      "name": "OPAC Library API (Gen p_gen_1)",
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+      "name": "Amazon Market API (Gen p_gen_2)",
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+        "gen_feat_3": 493.66
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+      "name": "Google Transit API (Gen p_gen_3)",
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+        "gen_feat_1": 485.07,
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+        "gen_feat_3": 502.07
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+      "name": "Archive.org API (Gen p_gen_4)",
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+      "name": "Google Books API (Gen p_gen_5)",
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+        "gen_feat_2": 0.49525,
+        "gen_feat_3": 490.14
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+    },
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+      "name": "Google Maps Geocoding API (Gen p_google)",
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+        "gen_feat_3": 505.53
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+      "id": "t_library_gen_18",
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+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
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+        "gen_feat_1": 486.84,
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+        "gen_feat_3": 491.81
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+    {
+      "id": "t_market_gen_18",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
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+        "gen_feat_1": 493.65,
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+    },
+    {
+      "id": "t_transit_gen_18",
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+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
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+        "gen_feat_1": 501.67,
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+        "gen_feat_3": 499.03
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+    {
+      "id": "t_archive_gen_19",
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+      "provider_id": "p_local",
+      "name": "Archive.org API (Gen p_local)",
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+    {
+      "id": "t_books_gen_19",
+      "task_id": "t_books",
+      "provider_id": "p_gen_1",
+      "name": "Google Books API (Gen p_gen_1)",
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+        "gen_feat_1": 499.08,
+        "gen_feat_2": 0.494606,
+        "gen_feat_3": 487.22
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+    {
+      "id": "t_geocoding_gen_19",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
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+        "gen_feat_3": 487.17
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+    {
+      "id": "t_library_gen_19",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
+      "features": {
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+        "gen_feat_1": 501.13,
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+    },
+    {
+      "id": "t_market_gen_19",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.993379,
+        "gen_feat_1": 490.28,
+        "gen_feat_2": 0.501509,
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+    },
+    {
+      "id": "t_transit_gen_19",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 501.65,
+        "gen_feat_2": 0.495803,
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+    {
+      "id": "t_archive_gen_20",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 491.89,
+        "cost_usd": 0.0,
+        "availability": 0.954168,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.488921,
+        "gen_feat_3": 509.7
+      }
+    },
+    {
+      "id": "t_books_gen_20",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 250.48,
+        "cost_usd": 0.0,
+        "availability": 0.985935,
+        "gen_feat_1": 512.77,
+        "gen_feat_2": 0.511517,
+        "gen_feat_3": 488.9
+      }
+    },
+    {
+      "id": "t_geocoding_gen_20",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 306.49,
+        "cost_usd": 0.0,
+        "availability": 0.967642,
+        "gen_feat_1": 498.42,
+        "gen_feat_2": 0.486838,
+        "gen_feat_3": 488.05
+      }
+    },
+    {
+      "id": "t_library_gen_20",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 344.14,
+        "cost_usd": 0.0,
+        "availability": 0.984042,
+        "gen_feat_1": 501.45,
+        "gen_feat_2": 0.506524,
+        "gen_feat_3": 498.32
+      }
+    },
+    {
+      "id": "t_market_gen_20",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 397.23,
+        "cost_usd": 0.0,
+        "availability": 0.960406,
+        "gen_feat_1": 507.18,
+        "gen_feat_2": 0.499712,
+        "gen_feat_3": 501.21
+      }
+    },
+    {
+      "id": "t_transit_gen_20",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 461.75,
+        "cost_usd": 0.0,
+        "availability": 0.979177,
+        "gen_feat_1": 486.25,
+        "gen_feat_2": 0.508921,
+        "gen_feat_3": 501.24
+      }
+    },
+    {
+      "id": "t_archive_gen_21",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 493.26,
+        "cost_usd": 0.0,
+        "availability": 0.989168,
+        "gen_feat_1": 509.91,
+        "gen_feat_2": 0.491803,
+        "gen_feat_3": 494.52
+      }
+    },
+    {
+      "id": "t_books_gen_21",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 254.37,
+        "cost_usd": 0.0,
+        "availability": 0.980876,
+        "gen_feat_1": 494.31,
+        "gen_feat_2": 0.512423,
+        "gen_feat_3": 487.61
+      }
+    },
+    {
+      "id": "t_geocoding_gen_21",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 0.976634,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.494573,
+        "gen_feat_3": 500.47
+      }
+    },
+    {
+      "id": "t_library_gen_21",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.76,
+        "cost_usd": 0.0,
+        "availability": 0.987565,
+        "gen_feat_1": 501.69,
+        "gen_feat_2": 0.494498,
+        "gen_feat_3": 497.28
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_books",
+          "kind": "TASK",
+          "task_id": "t_books"
+        },
+        {
+          "id": "n_parallel_options",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
+            {
               "id": "n_library_trip",
               "kind": "SEQ",
               "children": [
@@ -1163,35 +2152,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/cremaschi2018-textbook-access_many_soft.json b/experimentation/instances/cremaschi2018-textbook-access_many_soft.json
index cdf169d..39aa374 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_many_soft.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_many_soft.json
@@ -3,13 +3,20 @@
     "id": "cremaschi2018-textbook-access_many_soft",
     "name": "Book info retrieval (Cremaschi et al. 2018) [many, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -322,21 +329,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +357,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +371,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +385,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +413,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +441,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +483,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +553,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +637,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +651,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +693,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +707,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +749,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +777,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +791,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +833,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +861,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +875,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,96 +931,1076 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 489.16,
+        "latency_ms": 244.58,
         "cost_usd": 0.0,
-        "availability": 0.997048,
+        "availability": 1.0,
         "gen_feat_1": 498.8,
         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 490.4,
+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
+        "availability": 1.0,
         "gen_feat_1": 499.32,
         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 493.82,
+        "latency_ms": 345.67,
         "cost_usd": 0.0,
-        "availability": 0.963902,
+        "availability": 0.973839,
         "gen_feat_1": 513.54,
         "gen_feat_2": 0.514704,
         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 501.92,
+        "latency_ms": 401.54,
         "cost_usd": 0.0,
-        "availability": 0.987176,
+        "availability": 1.0,
         "gen_feat_1": 487.31,
         "gen_feat_2": 0.5052,
         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 497.11,
+        "latency_ms": 447.4,
         "cost_usd": 0.0,
-        "availability": 0.959066,
+        "availability": 0.983784,
         "gen_feat_1": 489.18,
         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 505.62,
+        "cost_usd": 0.0,
+        "availability": 0.99713,
+        "gen_feat_1": 503.01,
+        "gen_feat_2": 0.506712,
+        "gen_feat_3": 502.55
+      }
+    },
+    {
+      "id": "t_books_gen_10",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 254.31,
+        "cost_usd": 0.0,
+        "availability": 0.974866,
+        "gen_feat_1": 504.59,
+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 294.92,
+        "cost_usd": 0.0,
+        "availability": 0.986515,
+        "gen_feat_1": 509.4,
+        "gen_feat_2": 0.490838,
+        "gen_feat_3": 507.74
+      }
+    },
+    {
+      "id": "t_library_gen_10",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 355.61,
+        "cost_usd": 0.0,
+        "availability": 0.962059,
+        "gen_feat_1": 503.27,
+        "gen_feat_2": 0.496355,
+        "gen_feat_3": 492.86
+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 391.3,
+        "cost_usd": 0.0,
+        "availability": 0.967196,
+        "gen_feat_1": 485.28,
+        "gen_feat_2": 0.506168,
+        "gen_feat_3": 493.59
+      }
+    },
+    {
+      "id": "t_transit_gen_10",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 453.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 497.77,
+        "gen_feat_2": 0.497114,
+        "gen_feat_3": 501.1
+      }
+    },
+    {
+      "id": "t_archive_gen_11",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 495.04,
+        "cost_usd": 0.0,
+        "availability": 0.977696,
+        "gen_feat_1": 488.45,
+        "gen_feat_2": 0.507139,
+        "gen_feat_3": 498.59
+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 244.15,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.26,
+        "gen_feat_2": 0.489809,
+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 492.12,
+        "gen_feat_2": 0.494309,
+        "gen_feat_3": 494.97
+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.58,
+        "cost_usd": 0.0,
+        "availability": 0.959167,
+        "gen_feat_1": 498.23,
+        "gen_feat_2": 0.509638,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 410.35,
+        "cost_usd": 0.0,
+        "availability": 0.981439,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.513284,
+        "gen_feat_3": 504.35
+      }
+    },
+    {
+      "id": "t_transit_gen_11",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 447.67,
+        "cost_usd": 0.0,
+        "availability": 0.981101,
+        "gen_feat_1": 508.33,
+        "gen_feat_2": 0.502312,
+        "gen_feat_3": 490.82
+      }
+    },
+    {
+      "id": "t_archive_gen_12",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 498.22,
+        "cost_usd": 0.0,
+        "availability": 0.942858,
+        "gen_feat_1": 489.41,
+        "gen_feat_2": 0.506947,
+        "gen_feat_3": 500.51
+      }
+    },
+    {
+      "id": "t_books_gen_12",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 246.05,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 509.45,
+        "gen_feat_2": 0.49345,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_geocoding_gen_12",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
+        "latency_ms": 298.34,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 503.43,
+        "gen_feat_2": 0.514423,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_library_gen_12",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 341.02,
+        "cost_usd": 0.0,
+        "availability": 0.966351,
+        "gen_feat_1": 497.76,
+        "gen_feat_2": 0.489784,
+        "gen_feat_3": 510.65
+      }
+    },
+    {
+      "id": "t_market_gen_12",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 411.13,
+        "cost_usd": 0.0,
+        "availability": 0.989619,
+        "gen_feat_1": 507.39,
+        "gen_feat_2": 0.514929,
+        "gen_feat_3": 497.87
+      }
+    },
+    {
+      "id": "t_transit_gen_12",
+      "task_id": "t_transit",
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+      "name": "Google Transit API (Gen p_gen_3)",
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+      "name": "OPAC Library API (Gen p_amazon)",
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+      "name": "Amazon Market API (Gen p_unimib)",
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+      "name": "Google Transit API (Gen p_archive)",
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+      "name": "Amazon Market API (Gen p_gen_4)",
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+    {
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+      "name": "OPAC Library API (Gen p_gen_5)",
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+      "name": "Amazon Market API (Gen p_google)",
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+      "name": "Archive.org API (Gen p_unimib)",
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+      "name": "Google Books API (Gen p_archive)",
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+      "name": "Google Maps Geocoding API (Gen p_local)",
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+    {
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+      "name": "OPAC Library API (Gen p_gen_1)",
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+      "name": "Amazon Market API (Gen p_gen_2)",
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+      "name": "Google Transit API (Gen p_gen_3)",
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+      "name": "Archive.org API (Gen p_gen_4)",
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+    },
+    {
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+      "name": "Google Books API (Gen p_gen_5)",
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+        "gen_feat_2": 0.49525,
+        "gen_feat_3": 490.14
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+    },
+    {
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+      "name": "Google Maps Geocoding API (Gen p_google)",
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+    },
+    {
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+      "name": "OPAC Library API (Gen p_amazon)",
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+        "cost_usd": 0.0,
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+        "gen_feat_2": 0.506086,
+        "gen_feat_3": 491.81
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+    },
+    {
+      "id": "t_market_gen_18",
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+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
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+        "availability": 0.995237,
+        "gen_feat_1": 493.65,
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+    },
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+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
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+        "gen_feat_1": 501.67,
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+        "gen_feat_3": 499.03
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+    },
+    {
+      "id": "t_archive_gen_19",
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+      "name": "Archive.org API (Gen p_local)",
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+        "gen_feat_3": 506.41
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+    {
+      "id": "t_books_gen_19",
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+      "name": "Google Books API (Gen p_gen_1)",
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+        "gen_feat_1": 499.08,
+        "gen_feat_2": 0.494606,
+        "gen_feat_3": 487.22
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+    },
+    {
+      "id": "t_geocoding_gen_19",
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+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
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+        "gen_feat_1": 506.0,
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+        "gen_feat_3": 487.17
+      }
+    },
+    {
+      "id": "t_library_gen_19",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
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+        "gen_feat_1": 501.13,
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+        "gen_feat_3": 496.62
+      }
+    },
+    {
+      "id": "t_market_gen_19",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
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+        "gen_feat_1": 490.28,
+        "gen_feat_2": 0.501509,
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+    },
+    {
+      "id": "t_transit_gen_19",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_1": 501.65,
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+    },
+    {
+      "id": "t_archive_gen_20",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
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+        "gen_feat_1": 501.03,
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+    {
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+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
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+        "cost_usd": 0.0,
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+        "gen_feat_1": 512.77,
+        "gen_feat_2": 0.511517,
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+    },
+    {
+      "id": "t_geocoding_gen_20",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
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+        "availability": 0.967642,
+        "gen_feat_1": 498.42,
+        "gen_feat_2": 0.486838,
+        "gen_feat_3": 488.05
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+    },
+    {
+      "id": "t_library_gen_20",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
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+        "gen_feat_1": 501.45,
+        "gen_feat_2": 0.506524,
+        "gen_feat_3": 498.32
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+    },
+    {
+      "id": "t_market_gen_20",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 397.23,
+        "cost_usd": 0.0,
+        "availability": 0.960406,
+        "gen_feat_1": 507.18,
+        "gen_feat_2": 0.499712,
+        "gen_feat_3": 501.21
+      }
+    },
+    {
+      "id": "t_transit_gen_20",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 461.75,
+        "cost_usd": 0.0,
+        "availability": 0.979177,
+        "gen_feat_1": 486.25,
+        "gen_feat_2": 0.508921,
+        "gen_feat_3": 501.24
+      }
+    },
+    {
+      "id": "t_archive_gen_21",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 493.26,
+        "cost_usd": 0.0,
+        "availability": 0.989168,
+        "gen_feat_1": 509.91,
+        "gen_feat_2": 0.491803,
+        "gen_feat_3": 494.52
+      }
+    },
+    {
+      "id": "t_books_gen_21",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 254.37,
+        "cost_usd": 0.0,
+        "availability": 0.980876,
+        "gen_feat_1": 494.31,
+        "gen_feat_2": 0.512423,
+        "gen_feat_3": 487.61
+      }
+    },
+    {
+      "id": "t_geocoding_gen_21",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 0.976634,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.494573,
+        "gen_feat_3": 500.47
+      }
+    },
+    {
+      "id": "t_library_gen_21",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.76,
+        "cost_usd": 0.0,
+        "availability": 0.987565,
+        "gen_feat_1": 501.69,
+        "gen_feat_2": 0.494498,
+        "gen_feat_3": 497.28
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_books",
+          "kind": "TASK",
+          "task_id": "t_books"
+        },
+        {
+          "id": "n_parallel_options",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
             {
               "id": "n_library_trip",
               "kind": "SEQ",
@@ -1163,35 +2150,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/cremaschi2018-textbook-access_mono_one_hard.json b/experimentation/instances/cremaschi2018-textbook-access_mono_one_hard.json
index 72cce56..1e42a50 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_mono_one_hard.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_mono_one_hard.json
@@ -3,13 +3,22 @@
     "id": "cremaschi2018-textbook-access_mono_one_hard",
     "name": "Book info retrieval (Cremaschi et al. 2018) [mono_one, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -322,21 +331,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +359,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +373,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +387,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +415,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +443,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +485,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +555,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +639,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +653,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +695,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +709,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +751,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +779,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +793,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +835,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +863,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +877,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,97 +933,1077 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 489.16,
+        "latency_ms": 244.58,
         "cost_usd": 0.0,
-        "availability": 0.997048,
+        "availability": 1.0,
         "gen_feat_1": 498.8,
         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 490.4,
+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
+        "availability": 1.0,
         "gen_feat_1": 499.32,
         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 493.82,
+        "latency_ms": 345.67,
         "cost_usd": 0.0,
-        "availability": 0.963902,
+        "availability": 0.973839,
         "gen_feat_1": 513.54,
         "gen_feat_2": 0.514704,
         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 501.92,
+        "latency_ms": 401.54,
         "cost_usd": 0.0,
-        "availability": 0.987176,
+        "availability": 1.0,
         "gen_feat_1": 487.31,
         "gen_feat_2": 0.5052,
         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 497.11,
+        "latency_ms": 447.4,
         "cost_usd": 0.0,
-        "availability": 0.959066,
+        "availability": 0.983784,
         "gen_feat_1": 489.18,
         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
-            {
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 505.62,
+        "cost_usd": 0.0,
+        "availability": 0.99713,
+        "gen_feat_1": 503.01,
+        "gen_feat_2": 0.506712,
+        "gen_feat_3": 502.55
+      }
+    },
+    {
+      "id": "t_books_gen_10",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 254.31,
+        "cost_usd": 0.0,
+        "availability": 0.974866,
+        "gen_feat_1": 504.59,
+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 294.92,
+        "cost_usd": 0.0,
+        "availability": 0.986515,
+        "gen_feat_1": 509.4,
+        "gen_feat_2": 0.490838,
+        "gen_feat_3": 507.74
+      }
+    },
+    {
+      "id": "t_library_gen_10",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 355.61,
+        "cost_usd": 0.0,
+        "availability": 0.962059,
+        "gen_feat_1": 503.27,
+        "gen_feat_2": 0.496355,
+        "gen_feat_3": 492.86
+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 391.3,
+        "cost_usd": 0.0,
+        "availability": 0.967196,
+        "gen_feat_1": 485.28,
+        "gen_feat_2": 0.506168,
+        "gen_feat_3": 493.59
+      }
+    },
+    {
+      "id": "t_transit_gen_10",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 453.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 497.77,
+        "gen_feat_2": 0.497114,
+        "gen_feat_3": 501.1
+      }
+    },
+    {
+      "id": "t_archive_gen_11",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 495.04,
+        "cost_usd": 0.0,
+        "availability": 0.977696,
+        "gen_feat_1": 488.45,
+        "gen_feat_2": 0.507139,
+        "gen_feat_3": 498.59
+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 244.15,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.26,
+        "gen_feat_2": 0.489809,
+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 492.12,
+        "gen_feat_2": 0.494309,
+        "gen_feat_3": 494.97
+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.58,
+        "cost_usd": 0.0,
+        "availability": 0.959167,
+        "gen_feat_1": 498.23,
+        "gen_feat_2": 0.509638,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 410.35,
+        "cost_usd": 0.0,
+        "availability": 0.981439,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.513284,
+        "gen_feat_3": 504.35
+      }
+    },
+    {
+      "id": "t_transit_gen_11",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 447.67,
+        "cost_usd": 0.0,
+        "availability": 0.981101,
+        "gen_feat_1": 508.33,
+        "gen_feat_2": 0.502312,
+        "gen_feat_3": 490.82
+      }
+    },
+    {
+      "id": "t_archive_gen_12",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 498.22,
+        "cost_usd": 0.0,
+        "availability": 0.942858,
+        "gen_feat_1": 489.41,
+        "gen_feat_2": 0.506947,
+        "gen_feat_3": 500.51
+      }
+    },
+    {
+      "id": "t_books_gen_12",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 246.05,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 509.45,
+        "gen_feat_2": 0.49345,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_geocoding_gen_12",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
+        "latency_ms": 298.34,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 503.43,
+        "gen_feat_2": 0.514423,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_library_gen_12",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 341.02,
+        "cost_usd": 0.0,
+        "availability": 0.966351,
+        "gen_feat_1": 497.76,
+        "gen_feat_2": 0.489784,
+        "gen_feat_3": 510.65
+      }
+    },
+    {
+      "id": "t_market_gen_12",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 411.13,
+        "cost_usd": 0.0,
+        "availability": 0.989619,
+        "gen_feat_1": 507.39,
+        "gen_feat_2": 0.514929,
+        "gen_feat_3": 497.87
+      }
+    },
+    {
+      "id": "t_transit_gen_12",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 442.28,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.4,
+        "gen_feat_2": 0.503427,
+        "gen_feat_3": 493.14
+      }
+    },
+    {
+      "id": "t_archive_gen_13",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 500.69,
+        "cost_usd": 0.0,
+        "availability": 0.990712,
+        "gen_feat_1": 494.06,
+        "gen_feat_2": 0.495614,
+        "gen_feat_3": 495.79
+      }
+    },
+    {
+      "id": "t_books_gen_13",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 242.81,
+        "cost_usd": 0.0,
+        "availability": 0.996551,
+        "gen_feat_1": 501.01,
+        "gen_feat_2": 0.514115,
+        "gen_feat_3": 506.26
+      }
+    },
+    {
+      "id": "t_geocoding_gen_13",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
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+      "name": "Amazon Market API (Gen p_gen_4)",
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+      "name": "Google Transit API (Gen p_gen_5)",
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+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
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+      "name": "Google Books API (Gen p_amazon)",
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+      "name": "Google Maps Geocoding API (Gen p_unimib)",
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+      "name": "OPAC Library API (Gen p_archive)",
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+      "name": "Amazon Market API (Gen p_local)",
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+      "name": "Google Transit API (Gen p_gen_1)",
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+        "gen_feat_1": 486.25,
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+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
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+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 254.37,
+        "cost_usd": 0.0,
+        "availability": 0.980876,
+        "gen_feat_1": 494.31,
+        "gen_feat_2": 0.512423,
+        "gen_feat_3": 487.61
+      }
+    },
+    {
+      "id": "t_geocoding_gen_21",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 0.976634,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.494573,
+        "gen_feat_3": 500.47
+      }
+    },
+    {
+      "id": "t_library_gen_21",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.76,
+        "cost_usd": 0.0,
+        "availability": 0.987565,
+        "gen_feat_1": 501.69,
+        "gen_feat_2": 0.494498,
+        "gen_feat_3": 497.28
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_books",
+          "kind": "TASK",
+          "task_id": "t_books"
+        },
+        {
+          "id": "n_parallel_options",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
+            {
               "id": "n_library_trip",
               "kind": "SEQ",
               "children": [
@@ -1153,35 +2142,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/cremaschi2018-textbook-access_mono_one_soft.json b/experimentation/instances/cremaschi2018-textbook-access_mono_one_soft.json
index c75a901..54f9dbf 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_mono_one_soft.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_mono_one_soft.json
@@ -3,13 +3,20 @@
     "id": "cremaschi2018-textbook-access_mono_one_soft",
     "name": "Book info retrieval (Cremaschi et al. 2018) [mono_one, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -322,21 +329,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +357,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +371,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +385,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +413,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +441,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +483,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +553,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +637,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +651,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +693,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +707,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +749,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +777,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +791,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +833,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +861,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +875,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,96 +931,1076 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 489.16,
+        "latency_ms": 244.58,
         "cost_usd": 0.0,
-        "availability": 0.997048,
+        "availability": 1.0,
         "gen_feat_1": 498.8,
         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 490.4,
+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
+        "availability": 1.0,
         "gen_feat_1": 499.32,
         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 493.82,
+        "latency_ms": 345.67,
         "cost_usd": 0.0,
-        "availability": 0.963902,
+        "availability": 0.973839,
         "gen_feat_1": 513.54,
         "gen_feat_2": 0.514704,
         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 501.92,
+        "latency_ms": 401.54,
         "cost_usd": 0.0,
-        "availability": 0.987176,
+        "availability": 1.0,
         "gen_feat_1": 487.31,
         "gen_feat_2": 0.5052,
         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 497.11,
+        "latency_ms": 447.4,
         "cost_usd": 0.0,
-        "availability": 0.959066,
+        "availability": 0.983784,
         "gen_feat_1": 489.18,
         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 505.62,
+        "cost_usd": 0.0,
+        "availability": 0.99713,
+        "gen_feat_1": 503.01,
+        "gen_feat_2": 0.506712,
+        "gen_feat_3": 502.55
+      }
+    },
+    {
+      "id": "t_books_gen_10",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 254.31,
+        "cost_usd": 0.0,
+        "availability": 0.974866,
+        "gen_feat_1": 504.59,
+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 294.92,
+        "cost_usd": 0.0,
+        "availability": 0.986515,
+        "gen_feat_1": 509.4,
+        "gen_feat_2": 0.490838,
+        "gen_feat_3": 507.74
+      }
+    },
+    {
+      "id": "t_library_gen_10",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 355.61,
+        "cost_usd": 0.0,
+        "availability": 0.962059,
+        "gen_feat_1": 503.27,
+        "gen_feat_2": 0.496355,
+        "gen_feat_3": 492.86
+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 391.3,
+        "cost_usd": 0.0,
+        "availability": 0.967196,
+        "gen_feat_1": 485.28,
+        "gen_feat_2": 0.506168,
+        "gen_feat_3": 493.59
+      }
+    },
+    {
+      "id": "t_transit_gen_10",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 453.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 497.77,
+        "gen_feat_2": 0.497114,
+        "gen_feat_3": 501.1
+      }
+    },
+    {
+      "id": "t_archive_gen_11",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 495.04,
+        "cost_usd": 0.0,
+        "availability": 0.977696,
+        "gen_feat_1": 488.45,
+        "gen_feat_2": 0.507139,
+        "gen_feat_3": 498.59
+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 244.15,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.26,
+        "gen_feat_2": 0.489809,
+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 492.12,
+        "gen_feat_2": 0.494309,
+        "gen_feat_3": 494.97
+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.58,
+        "cost_usd": 0.0,
+        "availability": 0.959167,
+        "gen_feat_1": 498.23,
+        "gen_feat_2": 0.509638,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 410.35,
+        "cost_usd": 0.0,
+        "availability": 0.981439,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.513284,
+        "gen_feat_3": 504.35
+      }
+    },
+    {
+      "id": "t_transit_gen_11",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 447.67,
+        "cost_usd": 0.0,
+        "availability": 0.981101,
+        "gen_feat_1": 508.33,
+        "gen_feat_2": 0.502312,
+        "gen_feat_3": 490.82
+      }
+    },
+    {
+      "id": "t_archive_gen_12",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 498.22,
+        "cost_usd": 0.0,
+        "availability": 0.942858,
+        "gen_feat_1": 489.41,
+        "gen_feat_2": 0.506947,
+        "gen_feat_3": 500.51
+      }
+    },
+    {
+      "id": "t_books_gen_12",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 246.05,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 509.45,
+        "gen_feat_2": 0.49345,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_geocoding_gen_12",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
+        "latency_ms": 298.34,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 503.43,
+        "gen_feat_2": 0.514423,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_library_gen_12",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 341.02,
+        "cost_usd": 0.0,
+        "availability": 0.966351,
+        "gen_feat_1": 497.76,
+        "gen_feat_2": 0.489784,
+        "gen_feat_3": 510.65
+      }
+    },
+    {
+      "id": "t_market_gen_12",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 411.13,
+        "cost_usd": 0.0,
+        "availability": 0.989619,
+        "gen_feat_1": 507.39,
+        "gen_feat_2": 0.514929,
+        "gen_feat_3": 497.87
+      }
+    },
+    {
+      "id": "t_transit_gen_12",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 442.28,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.4,
+        "gen_feat_2": 0.503427,
+        "gen_feat_3": 493.14
+      }
+    },
+    {
+      "id": "t_archive_gen_13",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 500.69,
+        "cost_usd": 0.0,
+        "availability": 0.990712,
+        "gen_feat_1": 494.06,
+        "gen_feat_2": 0.495614,
+        "gen_feat_3": 495.79
+      }
+    },
+    {
+      "id": "t_books_gen_13",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 242.81,
+        "cost_usd": 0.0,
+        "availability": 0.996551,
+        "gen_feat_1": 501.01,
+        "gen_feat_2": 0.514115,
+        "gen_feat_3": 506.26
+      }
+    },
+    {
+      "id": "t_geocoding_gen_13",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
+        "latency_ms": 298.13,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 495.73,
+        "gen_feat_2": 0.489432,
+        "gen_feat_3": 498.0
+      }
+    },
+    {
+      "id": "t_library_gen_13",
+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 357.18,
+        "cost_usd": 0.0,
+        "availability": 0.998491,
+        "gen_feat_1": 511.93,
+        "gen_feat_2": 0.48619,
+        "gen_feat_3": 514.89
+      }
+    },
+    {
+      "id": "t_market_gen_13",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 393.83,
+        "cost_usd": 0.0,
+        "availability": 0.994855,
+        "gen_feat_1": 501.91,
+        "gen_feat_2": 0.488753,
+        "gen_feat_3": 509.98
+      }
+    },
+    {
+      "id": "t_transit_gen_13",
+      "task_id": "t_transit",
+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
+      "features": {
+        "latency_ms": 442.83,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.62,
+        "gen_feat_2": 0.501125,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
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+      "task_id": "t_archive",
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+      }
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+      "name": "OPAC Library API (Gen p_gen_5)",
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+      }
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+    "type": "STRUCTURED",
+    "root": {
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+      "kind": "SEQ",
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+          "id": "n_books",
+          "kind": "TASK",
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+        {
+          "id": "n_parallel_options",
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+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
             {
               "id": "n_library_trip",
               "kind": "SEQ",
@@ -1153,35 +2140,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/cremaschi2018-textbook-access_mono_utility_hard.json b/experimentation/instances/cremaschi2018-textbook-access_mono_utility_hard.json
index 6aba0d6..b9fea59 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_mono_utility_hard.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_mono_utility_hard.json
@@ -3,13 +3,22 @@
     "id": "cremaschi2018-textbook-access_mono_utility_hard",
     "name": "Book info retrieval (Cremaschi et al. 2018) [mono_utility, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -322,21 +331,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +359,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +373,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +387,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +415,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +443,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +485,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +555,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +639,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +653,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +695,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +709,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +751,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +779,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +793,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +835,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +863,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +877,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,97 +933,1077 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 489.16,
+        "latency_ms": 244.58,
         "cost_usd": 0.0,
-        "availability": 0.997048,
+        "availability": 1.0,
         "gen_feat_1": 498.8,
         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 490.4,
+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
+        "availability": 1.0,
         "gen_feat_1": 499.32,
         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 493.82,
+        "latency_ms": 345.67,
         "cost_usd": 0.0,
-        "availability": 0.963902,
+        "availability": 0.973839,
         "gen_feat_1": 513.54,
         "gen_feat_2": 0.514704,
         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 501.92,
+        "latency_ms": 401.54,
         "cost_usd": 0.0,
-        "availability": 0.987176,
+        "availability": 1.0,
         "gen_feat_1": 487.31,
         "gen_feat_2": 0.5052,
         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 497.11,
+        "latency_ms": 447.4,
         "cost_usd": 0.0,
-        "availability": 0.959066,
+        "availability": 0.983784,
         "gen_feat_1": 489.18,
         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
-            {
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 505.62,
+        "cost_usd": 0.0,
+        "availability": 0.99713,
+        "gen_feat_1": 503.01,
+        "gen_feat_2": 0.506712,
+        "gen_feat_3": 502.55
+      }
+    },
+    {
+      "id": "t_books_gen_10",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 254.31,
+        "cost_usd": 0.0,
+        "availability": 0.974866,
+        "gen_feat_1": 504.59,
+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 294.92,
+        "cost_usd": 0.0,
+        "availability": 0.986515,
+        "gen_feat_1": 509.4,
+        "gen_feat_2": 0.490838,
+        "gen_feat_3": 507.74
+      }
+    },
+    {
+      "id": "t_library_gen_10",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 355.61,
+        "cost_usd": 0.0,
+        "availability": 0.962059,
+        "gen_feat_1": 503.27,
+        "gen_feat_2": 0.496355,
+        "gen_feat_3": 492.86
+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 391.3,
+        "cost_usd": 0.0,
+        "availability": 0.967196,
+        "gen_feat_1": 485.28,
+        "gen_feat_2": 0.506168,
+        "gen_feat_3": 493.59
+      }
+    },
+    {
+      "id": "t_transit_gen_10",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 453.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 497.77,
+        "gen_feat_2": 0.497114,
+        "gen_feat_3": 501.1
+      }
+    },
+    {
+      "id": "t_archive_gen_11",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 495.04,
+        "cost_usd": 0.0,
+        "availability": 0.977696,
+        "gen_feat_1": 488.45,
+        "gen_feat_2": 0.507139,
+        "gen_feat_3": 498.59
+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 244.15,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.26,
+        "gen_feat_2": 0.489809,
+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 492.12,
+        "gen_feat_2": 0.494309,
+        "gen_feat_3": 494.97
+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.58,
+        "cost_usd": 0.0,
+        "availability": 0.959167,
+        "gen_feat_1": 498.23,
+        "gen_feat_2": 0.509638,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 410.35,
+        "cost_usd": 0.0,
+        "availability": 0.981439,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.513284,
+        "gen_feat_3": 504.35
+      }
+    },
+    {
+      "id": "t_transit_gen_11",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 447.67,
+        "cost_usd": 0.0,
+        "availability": 0.981101,
+        "gen_feat_1": 508.33,
+        "gen_feat_2": 0.502312,
+        "gen_feat_3": 490.82
+      }
+    },
+    {
+      "id": "t_archive_gen_12",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 498.22,
+        "cost_usd": 0.0,
+        "availability": 0.942858,
+        "gen_feat_1": 489.41,
+        "gen_feat_2": 0.506947,
+        "gen_feat_3": 500.51
+      }
+    },
+    {
+      "id": "t_books_gen_12",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 246.05,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 509.45,
+        "gen_feat_2": 0.49345,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_geocoding_gen_12",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
+        "latency_ms": 298.34,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 503.43,
+        "gen_feat_2": 0.514423,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_library_gen_12",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 341.02,
+        "cost_usd": 0.0,
+        "availability": 0.966351,
+        "gen_feat_1": 497.76,
+        "gen_feat_2": 0.489784,
+        "gen_feat_3": 510.65
+      }
+    },
+    {
+      "id": "t_market_gen_12",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 411.13,
+        "cost_usd": 0.0,
+        "availability": 0.989619,
+        "gen_feat_1": 507.39,
+        "gen_feat_2": 0.514929,
+        "gen_feat_3": 497.87
+      }
+    },
+    {
+      "id": "t_transit_gen_12",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 442.28,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.4,
+        "gen_feat_2": 0.503427,
+        "gen_feat_3": 493.14
+      }
+    },
+    {
+      "id": "t_archive_gen_13",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 500.69,
+        "cost_usd": 0.0,
+        "availability": 0.990712,
+        "gen_feat_1": 494.06,
+        "gen_feat_2": 0.495614,
+        "gen_feat_3": 495.79
+      }
+    },
+    {
+      "id": "t_books_gen_13",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 242.81,
+        "cost_usd": 0.0,
+        "availability": 0.996551,
+        "gen_feat_1": 501.01,
+        "gen_feat_2": 0.514115,
+        "gen_feat_3": 506.26
+      }
+    },
+    {
+      "id": "t_geocoding_gen_13",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
+        "latency_ms": 298.13,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 495.73,
+        "gen_feat_2": 0.489432,
+        "gen_feat_3": 498.0
+      }
+    },
+    {
+      "id": "t_library_gen_13",
+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 357.18,
+        "cost_usd": 0.0,
+        "availability": 0.998491,
+        "gen_feat_1": 511.93,
+        "gen_feat_2": 0.48619,
+        "gen_feat_3": 514.89
+      }
+    },
+    {
+      "id": "t_market_gen_13",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 393.83,
+        "cost_usd": 0.0,
+        "availability": 0.994855,
+        "gen_feat_1": 501.91,
+        "gen_feat_2": 0.488753,
+        "gen_feat_3": 509.98
+      }
+    },
+    {
+      "id": "t_transit_gen_13",
+      "task_id": "t_transit",
+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
+      "features": {
+        "latency_ms": 442.83,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.62,
+        "gen_feat_2": 0.501125,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_archive_gen_14",
+      "task_id": "t_archive",
+      "provider_id": "p_local",
+      "name": "Archive.org API (Gen p_local)",
+      "features": {
+        "latency_ms": 489.78,
+        "cost_usd": 0.0,
+        "availability": 0.972143,
+        "gen_feat_1": 506.48,
+        "gen_feat_2": 0.503324,
+        "gen_feat_3": 497.5
+      }
+    },
+    {
+      "id": "t_books_gen_14",
+      "task_id": "t_books",
+      "provider_id": "p_gen_1",
+      "name": "Google Books API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 244.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 488.19,
+        "gen_feat_2": 0.490603,
+        "gen_feat_3": 504.97
+      }
+    },
+    {
+      "id": "t_geocoding_gen_14",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 305.41,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 512.89,
+        "gen_feat_2": 0.511697,
+        "gen_feat_3": 487.74
+      }
+    },
+    {
+      "id": "t_library_gen_14",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
+      "features": {
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+    {
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+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
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+        "cost_usd": 0.0,
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+    {
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+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
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+        "gen_feat_3": 498.6
+      }
+    },
+    {
+      "id": "t_archive_gen_15",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_2": 0.496226,
+        "gen_feat_3": 511.36
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+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
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+        "cost_usd": 0.0,
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+    {
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+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
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+    {
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+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
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+    {
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+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
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+        "cost_usd": 0.0,
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+      "task_id": "t_transit",
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+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
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+        "cost_usd": 0.0,
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+        "gen_feat_3": 509.34
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+    {
+      "id": "t_books_gen_16",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
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+    },
+    {
+      "id": "t_geocoding_gen_16",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
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+        "gen_feat_3": 505.47
+      }
+    },
+    {
+      "id": "t_library_gen_16",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.997765,
+        "gen_feat_1": 490.71,
+        "gen_feat_2": 0.49556,
+        "gen_feat_3": 496.32
+      }
+    },
+    {
+      "id": "t_market_gen_16",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 402.17,
+        "cost_usd": 0.0,
+        "availability": 0.988339,
+        "gen_feat_1": 507.16,
+        "gen_feat_2": 0.510104,
+        "gen_feat_3": 510.52
+      }
+    },
+    {
+      "id": "t_transit_gen_16",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.986271,
+        "gen_feat_1": 510.91,
+        "gen_feat_2": 0.514415,
+        "gen_feat_3": 505.0
+      }
+    },
+    {
+      "id": "t_archive_gen_17",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
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+        "cost_usd": 0.0,
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+        "gen_feat_1": 489.74,
+        "gen_feat_2": 0.487627,
+        "gen_feat_3": 494.31
+      }
+    },
+    {
+      "id": "t_books_gen_17",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.978471,
+        "gen_feat_1": 506.36,
+        "gen_feat_2": 0.502386,
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+      }
+    },
+    {
+      "id": "t_geocoding_gen_17",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
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+    {
+      "id": "t_library_gen_17",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
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+      }
+    },
+    {
+      "id": "t_market_gen_17",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
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+        "availability": 0.977601,
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+        "gen_feat_2": 0.507459,
+        "gen_feat_3": 493.66
+      }
+    },
+    {
+      "id": "t_transit_gen_17",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.974062,
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+        "gen_feat_3": 502.07
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+    },
+    {
+      "id": "t_archive_gen_18",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
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+        "cost_usd": 0.0,
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+        "gen_feat_1": 493.86,
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+        "gen_feat_3": 500.81
+      }
+    },
+    {
+      "id": "t_books_gen_18",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.27,
+        "gen_feat_2": 0.49525,
+        "gen_feat_3": 490.14
+      }
+    },
+    {
+      "id": "t_geocoding_gen_18",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 513.11,
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+      }
+    },
+    {
+      "id": "t_library_gen_18",
+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
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+        "cost_usd": 0.0,
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+      }
+    },
+    {
+      "id": "t_market_gen_18",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
+      "features": {
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+        "availability": 0.995237,
+        "gen_feat_1": 493.65,
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+      }
+    },
+    {
+      "id": "t_transit_gen_18",
+      "task_id": "t_transit",
+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
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+      }
+    },
+    {
+      "id": "t_archive_gen_19",
+      "task_id": "t_archive",
+      "provider_id": "p_local",
+      "name": "Archive.org API (Gen p_local)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_3": 506.41
+      }
+    },
+    {
+      "id": "t_books_gen_19",
+      "task_id": "t_books",
+      "provider_id": "p_gen_1",
+      "name": "Google Books API (Gen p_gen_1)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 499.08,
+        "gen_feat_2": 0.494606,
+        "gen_feat_3": 487.22
+      }
+    },
+    {
+      "id": "t_geocoding_gen_19",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.984595,
+        "gen_feat_1": 506.0,
+        "gen_feat_2": 0.489207,
+        "gen_feat_3": 487.17
+      }
+    },
+    {
+      "id": "t_library_gen_19",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
+      "features": {
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+        "gen_feat_1": 501.13,
+        "gen_feat_2": 0.493267,
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+      }
+    },
+    {
+      "id": "t_market_gen_19",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_2": 0.501509,
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+      }
+    },
+    {
+      "id": "t_transit_gen_19",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_2": 0.495803,
+        "gen_feat_3": 486.73
+      }
+    },
+    {
+      "id": "t_archive_gen_20",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.954168,
+        "gen_feat_1": 501.03,
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+        "gen_feat_3": 509.7
+      }
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+    {
+      "id": "t_books_gen_20",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.985935,
+        "gen_feat_1": 512.77,
+        "gen_feat_2": 0.511517,
+        "gen_feat_3": 488.9
+      }
+    },
+    {
+      "id": "t_geocoding_gen_20",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
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+        "cost_usd": 0.0,
+        "availability": 0.967642,
+        "gen_feat_1": 498.42,
+        "gen_feat_2": 0.486838,
+        "gen_feat_3": 488.05
+      }
+    },
+    {
+      "id": "t_library_gen_20",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.984042,
+        "gen_feat_1": 501.45,
+        "gen_feat_2": 0.506524,
+        "gen_feat_3": 498.32
+      }
+    },
+    {
+      "id": "t_market_gen_20",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.960406,
+        "gen_feat_1": 507.18,
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+        "gen_feat_3": 501.21
+      }
+    },
+    {
+      "id": "t_transit_gen_20",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.979177,
+        "gen_feat_1": 486.25,
+        "gen_feat_2": 0.508921,
+        "gen_feat_3": 501.24
+      }
+    },
+    {
+      "id": "t_archive_gen_21",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.989168,
+        "gen_feat_1": 509.91,
+        "gen_feat_2": 0.491803,
+        "gen_feat_3": 494.52
+      }
+    },
+    {
+      "id": "t_books_gen_21",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 254.37,
+        "cost_usd": 0.0,
+        "availability": 0.980876,
+        "gen_feat_1": 494.31,
+        "gen_feat_2": 0.512423,
+        "gen_feat_3": 487.61
+      }
+    },
+    {
+      "id": "t_geocoding_gen_21",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 0.976634,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.494573,
+        "gen_feat_3": 500.47
+      }
+    },
+    {
+      "id": "t_library_gen_21",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.76,
+        "cost_usd": 0.0,
+        "availability": 0.987565,
+        "gen_feat_1": 501.69,
+        "gen_feat_2": 0.494498,
+        "gen_feat_3": 497.28
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_books",
+          "kind": "TASK",
+          "task_id": "t_books"
+        },
+        {
+          "id": "n_parallel_options",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
+            {
               "id": "n_library_trip",
               "kind": "SEQ",
               "children": [
@@ -1163,35 +2152,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/cremaschi2018-textbook-access_mono_utility_soft.json b/experimentation/instances/cremaschi2018-textbook-access_mono_utility_soft.json
index b8214e7..ddc8c37 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_mono_utility_soft.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_mono_utility_soft.json
@@ -3,13 +3,20 @@
     "id": "cremaschi2018-textbook-access_mono_utility_soft",
     "name": "Book info retrieval (Cremaschi et al. 2018) [mono_utility, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -322,21 +329,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +357,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +371,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +385,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +413,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +441,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +483,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +553,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +637,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +651,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +693,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +707,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +749,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +777,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +791,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +833,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +861,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +875,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,96 +931,1076 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 489.16,
+        "latency_ms": 244.58,
         "cost_usd": 0.0,
-        "availability": 0.997048,
+        "availability": 1.0,
         "gen_feat_1": 498.8,
         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 490.4,
+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
+        "availability": 1.0,
         "gen_feat_1": 499.32,
         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 493.82,
+        "latency_ms": 345.67,
         "cost_usd": 0.0,
-        "availability": 0.963902,
+        "availability": 0.973839,
         "gen_feat_1": 513.54,
         "gen_feat_2": 0.514704,
         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 501.92,
+        "latency_ms": 401.54,
         "cost_usd": 0.0,
-        "availability": 0.987176,
+        "availability": 1.0,
         "gen_feat_1": 487.31,
         "gen_feat_2": 0.5052,
         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 497.11,
+        "latency_ms": 447.4,
         "cost_usd": 0.0,
-        "availability": 0.959066,
+        "availability": 0.983784,
         "gen_feat_1": 489.18,
         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 505.62,
+        "cost_usd": 0.0,
+        "availability": 0.99713,
+        "gen_feat_1": 503.01,
+        "gen_feat_2": 0.506712,
+        "gen_feat_3": 502.55
+      }
+    },
+    {
+      "id": "t_books_gen_10",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 254.31,
+        "cost_usd": 0.0,
+        "availability": 0.974866,
+        "gen_feat_1": 504.59,
+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 294.92,
+        "cost_usd": 0.0,
+        "availability": 0.986515,
+        "gen_feat_1": 509.4,
+        "gen_feat_2": 0.490838,
+        "gen_feat_3": 507.74
+      }
+    },
+    {
+      "id": "t_library_gen_10",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 355.61,
+        "cost_usd": 0.0,
+        "availability": 0.962059,
+        "gen_feat_1": 503.27,
+        "gen_feat_2": 0.496355,
+        "gen_feat_3": 492.86
+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 391.3,
+        "cost_usd": 0.0,
+        "availability": 0.967196,
+        "gen_feat_1": 485.28,
+        "gen_feat_2": 0.506168,
+        "gen_feat_3": 493.59
+      }
+    },
+    {
+      "id": "t_transit_gen_10",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 497.77,
+        "gen_feat_2": 0.497114,
+        "gen_feat_3": 501.1
+      }
+    },
+    {
+      "id": "t_archive_gen_11",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.977696,
+        "gen_feat_1": 488.45,
+        "gen_feat_2": 0.507139,
+        "gen_feat_3": 498.59
+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.26,
+        "gen_feat_2": 0.489809,
+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 492.12,
+        "gen_feat_2": 0.494309,
+        "gen_feat_3": 494.97
+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.58,
+        "cost_usd": 0.0,
+        "availability": 0.959167,
+        "gen_feat_1": 498.23,
+        "gen_feat_2": 0.509638,
+        "gen_feat_3": 498.57
+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 410.35,
+        "cost_usd": 0.0,
+        "availability": 0.981439,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.513284,
+        "gen_feat_3": 504.35
+      }
+    },
+    {
+      "id": "t_transit_gen_11",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.981101,
+        "gen_feat_1": 508.33,
+        "gen_feat_2": 0.502312,
+        "gen_feat_3": 490.82
+      }
+    },
+    {
+      "id": "t_archive_gen_12",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.942858,
+        "gen_feat_1": 489.41,
+        "gen_feat_2": 0.506947,
+        "gen_feat_3": 500.51
+      }
+    },
+    {
+      "id": "t_books_gen_12",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 246.05,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 509.45,
+        "gen_feat_2": 0.49345,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_geocoding_gen_12",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 503.43,
+        "gen_feat_2": 0.514423,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_library_gen_12",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.966351,
+        "gen_feat_1": 497.76,
+        "gen_feat_2": 0.489784,
+        "gen_feat_3": 510.65
+      }
+    },
+    {
+      "id": "t_market_gen_12",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.989619,
+        "gen_feat_1": 507.39,
+        "gen_feat_2": 0.514929,
+        "gen_feat_3": 497.87
+      }
+    },
+    {
+      "id": "t_transit_gen_12",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.4,
+        "gen_feat_2": 0.503427,
+        "gen_feat_3": 493.14
+      }
+    },
+    {
+      "id": "t_archive_gen_13",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.990712,
+        "gen_feat_1": 494.06,
+        "gen_feat_2": 0.495614,
+        "gen_feat_3": 495.79
+      }
+    },
+    {
+      "id": "t_books_gen_13",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.996551,
+        "gen_feat_1": 501.01,
+        "gen_feat_2": 0.514115,
+        "gen_feat_3": 506.26
+      }
+    },
+    {
+      "id": "t_geocoding_gen_13",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 495.73,
+        "gen_feat_2": 0.489432,
+        "gen_feat_3": 498.0
+      }
+    },
+    {
+      "id": "t_library_gen_13",
+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 357.18,
+        "cost_usd": 0.0,
+        "availability": 0.998491,
+        "gen_feat_1": 511.93,
+        "gen_feat_2": 0.48619,
+        "gen_feat_3": 514.89
+      }
+    },
+    {
+      "id": "t_market_gen_13",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.994855,
+        "gen_feat_1": 501.91,
+        "gen_feat_2": 0.488753,
+        "gen_feat_3": 509.98
+      }
+    },
+    {
+      "id": "t_transit_gen_13",
+      "task_id": "t_transit",
+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.62,
+        "gen_feat_2": 0.501125,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_archive_gen_14",
+      "task_id": "t_archive",
+      "provider_id": "p_local",
+      "name": "Archive.org API (Gen p_local)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.972143,
+        "gen_feat_1": 506.48,
+        "gen_feat_2": 0.503324,
+        "gen_feat_3": 497.5
+      }
+    },
+    {
+      "id": "t_books_gen_14",
+      "task_id": "t_books",
+      "provider_id": "p_gen_1",
+      "name": "Google Books API (Gen p_gen_1)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_1": 488.19,
+        "gen_feat_2": 0.490603,
+        "gen_feat_3": 504.97
+      }
+    },
+    {
+      "id": "t_geocoding_gen_14",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_3": 487.74
+      }
+    },
+    {
+      "id": "t_library_gen_14",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
+      "features": {
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+        "gen_feat_1": 505.82,
+        "gen_feat_2": 0.487073,
+        "gen_feat_3": 503.05
+      }
+    },
+    {
+      "id": "t_market_gen_14",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
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+        "gen_feat_2": 0.492645,
+        "gen_feat_3": 485.8
+      }
+    },
+    {
+      "id": "t_transit_gen_14",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
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+        "cost_usd": 0.0,
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+        "gen_feat_2": 0.492784,
+        "gen_feat_3": 498.6
+      }
+    },
+    {
+      "id": "t_archive_gen_15",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 498.3,
+        "cost_usd": 0.0,
+        "availability": 0.9551,
+        "gen_feat_1": 505.14,
+        "gen_feat_2": 0.496226,
+        "gen_feat_3": 511.36
+      }
+    },
+    {
+      "id": "t_books_gen_15",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 250.03,
+        "cost_usd": 0.0,
+        "availability": 0.992289,
+        "gen_feat_1": 491.2,
+        "gen_feat_2": 0.508401,
+        "gen_feat_3": 502.25
+      }
+    },
+    {
+      "id": "t_geocoding_gen_15",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 302.51,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 492.95,
+        "gen_feat_2": 0.499769,
+        "gen_feat_3": 506.39
+      }
+    },
+    {
+      "id": "t_library_gen_15",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 351.49,
+        "cost_usd": 0.0,
+        "availability": 0.990308,
+        "gen_feat_1": 496.99,
+        "gen_feat_2": 0.51175,
+        "gen_feat_3": 498.1
+      }
+    },
+    {
+      "id": "t_market_gen_15",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 400.84,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 487.84,
+        "gen_feat_2": 0.498582,
+        "gen_feat_3": 505.43
+      }
+    },
+    {
+      "id": "t_transit_gen_15",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 446.87,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 514.42,
+        "gen_feat_2": 0.498436,
+        "gen_feat_3": 512.02
+      }
+    },
+    {
+      "id": "t_archive_gen_16",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 499.07,
+        "cost_usd": 0.0,
+        "availability": 0.941216,
+        "gen_feat_1": 499.52,
+        "gen_feat_2": 0.513538,
+        "gen_feat_3": 509.34
+      }
+    },
+    {
+      "id": "t_books_gen_16",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 252.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.67,
+        "gen_feat_2": 0.514478,
+        "gen_feat_3": 485.52
+      }
+    },
+    {
+      "id": "t_geocoding_gen_16",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 296.57,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 508.98,
+        "gen_feat_2": 0.510338,
+        "gen_feat_3": 505.47
+      }
+    },
+    {
+      "id": "t_library_gen_16",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 340.37,
+        "cost_usd": 0.0,
+        "availability": 0.997765,
+        "gen_feat_1": 490.71,
+        "gen_feat_2": 0.49556,
+        "gen_feat_3": 496.32
+      }
+    },
+    {
+      "id": "t_market_gen_16",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 402.17,
+        "cost_usd": 0.0,
+        "availability": 0.988339,
+        "gen_feat_1": 507.16,
+        "gen_feat_2": 0.510104,
+        "gen_feat_3": 510.52
+      }
+    },
+    {
+      "id": "t_transit_gen_16",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 460.67,
+        "cost_usd": 0.0,
+        "availability": 0.986271,
+        "gen_feat_1": 510.91,
+        "gen_feat_2": 0.514415,
+        "gen_feat_3": 505.0
+      }
+    },
+    {
+      "id": "t_archive_gen_17",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 494.13,
+        "cost_usd": 0.0,
+        "availability": 0.98922,
+        "gen_feat_1": 489.74,
+        "gen_feat_2": 0.487627,
+        "gen_feat_3": 494.31
+      }
+    },
+    {
+      "id": "t_books_gen_17",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 253.97,
+        "cost_usd": 0.0,
+        "availability": 0.978471,
+        "gen_feat_1": 506.36,
+        "gen_feat_2": 0.502386,
+        "gen_feat_3": 508.92
+      }
+    },
+    {
+      "id": "t_geocoding_gen_17",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
+        "latency_ms": 293.01,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.22,
+        "gen_feat_2": 0.490263,
+        "gen_feat_3": 487.28
+      }
+    },
+    {
+      "id": "t_library_gen_17",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 360.41,
+        "cost_usd": 0.0,
+        "availability": 0.963085,
+        "gen_feat_1": 498.39,
+        "gen_feat_2": 0.507309,
+        "gen_feat_3": 500.97
+      }
+    },
+    {
+      "id": "t_market_gen_17",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 391.34,
+        "cost_usd": 0.0,
+        "availability": 0.977601,
+        "gen_feat_1": 512.08,
+        "gen_feat_2": 0.507459,
+        "gen_feat_3": 493.66
+      }
+    },
+    {
+      "id": "t_transit_gen_17",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 456.09,
+        "cost_usd": 0.0,
+        "availability": 0.974062,
+        "gen_feat_1": 485.07,
+        "gen_feat_2": 0.512164,
+        "gen_feat_3": 502.07
+      }
+    },
+    {
+      "id": "t_archive_gen_18",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 514.54,
+        "cost_usd": 0.0,
+        "availability": 0.990269,
+        "gen_feat_1": 493.86,
+        "gen_feat_2": 0.492328,
+        "gen_feat_3": 500.81
+      }
+    },
+    {
+      "id": "t_books_gen_18",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 247.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.27,
+        "gen_feat_2": 0.49525,
+        "gen_feat_3": 490.14
+      }
+    },
+    {
+      "id": "t_geocoding_gen_18",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
+        "latency_ms": 305.79,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 513.11,
+        "gen_feat_2": 0.509321,
+        "gen_feat_3": 505.53
+      }
+    },
+    {
+      "id": "t_library_gen_18",
+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 359.92,
+        "cost_usd": 0.0,
+        "availability": 0.988477,
+        "gen_feat_1": 486.84,
+        "gen_feat_2": 0.506086,
+        "gen_feat_3": 491.81
+      }
+    },
+    {
+      "id": "t_market_gen_18",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 396.22,
+        "cost_usd": 0.0,
+        "availability": 0.995237,
+        "gen_feat_1": 493.65,
+        "gen_feat_2": 0.500636,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_transit_gen_18",
+      "task_id": "t_transit",
+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
+      "features": {
+        "latency_ms": 462.39,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 501.67,
+        "gen_feat_2": 0.491163,
+        "gen_feat_3": 499.03
+      }
+    },
+    {
+      "id": "t_archive_gen_19",
+      "task_id": "t_archive",
+      "provider_id": "p_local",
+      "name": "Archive.org API (Gen p_local)",
+      "features": {
+        "latency_ms": 502.18,
+        "cost_usd": 0.0,
+        "availability": 0.968706,
+        "gen_feat_1": 495.6,
+        "gen_feat_2": 0.498742,
+        "gen_feat_3": 506.41
+      }
+    },
+    {
+      "id": "t_books_gen_19",
+      "task_id": "t_books",
+      "provider_id": "p_gen_1",
+      "name": "Google Books API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 255.45,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 499.08,
+        "gen_feat_2": 0.494606,
+        "gen_feat_3": 487.22
+      }
+    },
+    {
+      "id": "t_geocoding_gen_19",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 298.71,
+        "cost_usd": 0.0,
+        "availability": 0.984595,
+        "gen_feat_1": 506.0,
+        "gen_feat_2": 0.489207,
+        "gen_feat_3": 487.17
+      }
+    },
+    {
+      "id": "t_library_gen_19",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 349.04,
+        "cost_usd": 0.0,
+        "availability": 0.955429,
+        "gen_feat_1": 501.13,
+        "gen_feat_2": 0.493267,
+        "gen_feat_3": 496.62
+      }
+    },
+    {
+      "id": "t_market_gen_19",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 410.9,
+        "cost_usd": 0.0,
+        "availability": 0.993379,
+        "gen_feat_1": 490.28,
+        "gen_feat_2": 0.501509,
+        "gen_feat_3": 502.21
+      }
+    },
+    {
+      "id": "t_transit_gen_19",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 454.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 501.65,
+        "gen_feat_2": 0.495803,
+        "gen_feat_3": 486.73
+      }
+    },
+    {
+      "id": "t_archive_gen_20",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 491.89,
+        "cost_usd": 0.0,
+        "availability": 0.954168,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.488921,
+        "gen_feat_3": 509.7
+      }
+    },
+    {
+      "id": "t_books_gen_20",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 250.48,
+        "cost_usd": 0.0,
+        "availability": 0.985935,
+        "gen_feat_1": 512.77,
+        "gen_feat_2": 0.511517,
+        "gen_feat_3": 488.9
+      }
+    },
+    {
+      "id": "t_geocoding_gen_20",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 306.49,
+        "cost_usd": 0.0,
+        "availability": 0.967642,
+        "gen_feat_1": 498.42,
+        "gen_feat_2": 0.486838,
+        "gen_feat_3": 488.05
+      }
+    },
+    {
+      "id": "t_library_gen_20",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 344.14,
+        "cost_usd": 0.0,
+        "availability": 0.984042,
+        "gen_feat_1": 501.45,
+        "gen_feat_2": 0.506524,
+        "gen_feat_3": 498.32
+      }
+    },
+    {
+      "id": "t_market_gen_20",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 397.23,
+        "cost_usd": 0.0,
+        "availability": 0.960406,
+        "gen_feat_1": 507.18,
+        "gen_feat_2": 0.499712,
+        "gen_feat_3": 501.21
+      }
+    },
+    {
+      "id": "t_transit_gen_20",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 461.75,
+        "cost_usd": 0.0,
+        "availability": 0.979177,
+        "gen_feat_1": 486.25,
+        "gen_feat_2": 0.508921,
+        "gen_feat_3": 501.24
+      }
+    },
+    {
+      "id": "t_archive_gen_21",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 493.26,
+        "cost_usd": 0.0,
+        "availability": 0.989168,
+        "gen_feat_1": 509.91,
+        "gen_feat_2": 0.491803,
+        "gen_feat_3": 494.52
+      }
+    },
+    {
+      "id": "t_books_gen_21",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 254.37,
+        "cost_usd": 0.0,
+        "availability": 0.980876,
+        "gen_feat_1": 494.31,
+        "gen_feat_2": 0.512423,
+        "gen_feat_3": 487.61
+      }
+    },
+    {
+      "id": "t_geocoding_gen_21",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 0.976634,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.494573,
+        "gen_feat_3": 500.47
+      }
+    },
+    {
+      "id": "t_library_gen_21",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.76,
+        "cost_usd": 0.0,
+        "availability": 0.987565,
+        "gen_feat_1": 501.69,
+        "gen_feat_2": 0.494498,
+        "gen_feat_3": 497.28
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_books",
+          "kind": "TASK",
+          "task_id": "t_books"
+        },
+        {
+          "id": "n_parallel_options",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
             {
               "id": "n_library_trip",
               "kind": "SEQ",
@@ -1163,35 +2150,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/cremaschi2018-textbook-access_multi_hard.json b/experimentation/instances/cremaschi2018-textbook-access_multi_hard.json
index 62c207a..c02bede 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_multi_hard.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_multi_hard.json
@@ -3,13 +3,22 @@
     "id": "cremaschi2018-textbook-access_multi_hard",
     "name": "Book info retrieval (Cremaschi et al. 2018) [multi, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -322,21 +331,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +359,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +373,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +387,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +415,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +443,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +485,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +555,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +639,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +653,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +695,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +709,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +751,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +779,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +793,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +835,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +863,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +877,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,97 +933,1077 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 489.16,
+        "latency_ms": 244.58,
         "cost_usd": 0.0,
-        "availability": 0.997048,
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         "gen_feat_1": 498.8,
         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
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+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
+        "availability": 1.0,
         "gen_feat_1": 499.32,
         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
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+        "latency_ms": 345.67,
         "cost_usd": 0.0,
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+        "availability": 0.973839,
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         "gen_feat_2": 0.514704,
         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
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+        "latency_ms": 401.54,
         "cost_usd": 0.0,
-        "availability": 0.987176,
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         "gen_feat_2": 0.5052,
         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
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+        "latency_ms": 447.4,
         "cost_usd": 0.0,
-        "availability": 0.959066,
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         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
-  ],
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-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
-            {
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.99713,
+        "gen_feat_1": 503.01,
+        "gen_feat_2": 0.506712,
+        "gen_feat_3": 502.55
+      }
+    },
+    {
+      "id": "t_books_gen_10",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.974866,
+        "gen_feat_1": 504.59,
+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
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+        "cost_usd": 0.0,
+        "availability": 0.986515,
+        "gen_feat_1": 509.4,
+        "gen_feat_2": 0.490838,
+        "gen_feat_3": 507.74
+      }
+    },
+    {
+      "id": "t_library_gen_10",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
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+        "cost_usd": 0.0,
+        "availability": 0.962059,
+        "gen_feat_1": 503.27,
+        "gen_feat_2": 0.496355,
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+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
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+      }
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+    {
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+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
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+      }
+    },
+    {
+      "id": "t_archive_gen_11",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
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+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
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+        "gen_feat_2": 0.489809,
+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
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+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
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+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
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+      "provider_id": "p_amazon",
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+    {
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+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
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+      }
+    },
+    {
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+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
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+      }
+    },
+    {
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+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
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+      }
+    },
+    {
+      "id": "t_library_gen_12",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
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+        "gen_feat_3": 510.65
+      }
+    },
+    {
+      "id": "t_market_gen_12",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
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+      }
+    },
+    {
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+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
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+      }
+    },
+    {
+      "id": "t_archive_gen_13",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
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+      }
+    },
+    {
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+      "task_id": "t_books",
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+      "name": "Google Books API (Gen p_gen_5)",
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+      }
+    },
+    {
+      "id": "t_geocoding_gen_13",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
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+      }
+    },
+    {
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+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
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+        "gen_feat_2": 0.48619,
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+      }
+    },
+    {
+      "id": "t_market_gen_13",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
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+    },
+    {
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+      "task_id": "t_transit",
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+      "name": "Google Transit API (Gen p_archive)",
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+    {
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+    {
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+      "name": "Google Books API (Gen p_gen_1)",
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+    },
+    {
+      "id": "t_geocoding_gen_14",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
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+    {
+      "id": "t_library_gen_14",
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+    {
+      "id": "t_market_gen_14",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
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+    {
+      "id": "t_transit_gen_14",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
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+    {
+      "id": "t_archive_gen_15",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
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+    {
+      "id": "t_books_gen_15",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
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+      "name": "Google Maps Geocoding API (Gen p_unimib)",
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+    {
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+      "name": "OPAC Library API (Gen p_archive)",
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+    {
+      "id": "t_market_gen_15",
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+      "name": "Amazon Market API (Gen p_local)",
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+        "availability": 1.0,
+        "gen_feat_1": 487.84,
+        "gen_feat_2": 0.498582,
+        "gen_feat_3": 505.43
+      }
+    },
+    {
+      "id": "t_transit_gen_15",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 446.87,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 514.42,
+        "gen_feat_2": 0.498436,
+        "gen_feat_3": 512.02
+      }
+    },
+    {
+      "id": "t_archive_gen_16",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 499.07,
+        "cost_usd": 0.0,
+        "availability": 0.941216,
+        "gen_feat_1": 499.52,
+        "gen_feat_2": 0.513538,
+        "gen_feat_3": 509.34
+      }
+    },
+    {
+      "id": "t_books_gen_16",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 252.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.67,
+        "gen_feat_2": 0.514478,
+        "gen_feat_3": 485.52
+      }
+    },
+    {
+      "id": "t_geocoding_gen_16",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 296.57,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 508.98,
+        "gen_feat_2": 0.510338,
+        "gen_feat_3": 505.47
+      }
+    },
+    {
+      "id": "t_library_gen_16",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 340.37,
+        "cost_usd": 0.0,
+        "availability": 0.997765,
+        "gen_feat_1": 490.71,
+        "gen_feat_2": 0.49556,
+        "gen_feat_3": 496.32
+      }
+    },
+    {
+      "id": "t_market_gen_16",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 402.17,
+        "cost_usd": 0.0,
+        "availability": 0.988339,
+        "gen_feat_1": 507.16,
+        "gen_feat_2": 0.510104,
+        "gen_feat_3": 510.52
+      }
+    },
+    {
+      "id": "t_transit_gen_16",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 460.67,
+        "cost_usd": 0.0,
+        "availability": 0.986271,
+        "gen_feat_1": 510.91,
+        "gen_feat_2": 0.514415,
+        "gen_feat_3": 505.0
+      }
+    },
+    {
+      "id": "t_archive_gen_17",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 494.13,
+        "cost_usd": 0.0,
+        "availability": 0.98922,
+        "gen_feat_1": 489.74,
+        "gen_feat_2": 0.487627,
+        "gen_feat_3": 494.31
+      }
+    },
+    {
+      "id": "t_books_gen_17",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 253.97,
+        "cost_usd": 0.0,
+        "availability": 0.978471,
+        "gen_feat_1": 506.36,
+        "gen_feat_2": 0.502386,
+        "gen_feat_3": 508.92
+      }
+    },
+    {
+      "id": "t_geocoding_gen_17",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
+        "latency_ms": 293.01,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.22,
+        "gen_feat_2": 0.490263,
+        "gen_feat_3": 487.28
+      }
+    },
+    {
+      "id": "t_library_gen_17",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 360.41,
+        "cost_usd": 0.0,
+        "availability": 0.963085,
+        "gen_feat_1": 498.39,
+        "gen_feat_2": 0.507309,
+        "gen_feat_3": 500.97
+      }
+    },
+    {
+      "id": "t_market_gen_17",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 391.34,
+        "cost_usd": 0.0,
+        "availability": 0.977601,
+        "gen_feat_1": 512.08,
+        "gen_feat_2": 0.507459,
+        "gen_feat_3": 493.66
+      }
+    },
+    {
+      "id": "t_transit_gen_17",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 456.09,
+        "cost_usd": 0.0,
+        "availability": 0.974062,
+        "gen_feat_1": 485.07,
+        "gen_feat_2": 0.512164,
+        "gen_feat_3": 502.07
+      }
+    },
+    {
+      "id": "t_archive_gen_18",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 514.54,
+        "cost_usd": 0.0,
+        "availability": 0.990269,
+        "gen_feat_1": 493.86,
+        "gen_feat_2": 0.492328,
+        "gen_feat_3": 500.81
+      }
+    },
+    {
+      "id": "t_books_gen_18",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 247.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.27,
+        "gen_feat_2": 0.49525,
+        "gen_feat_3": 490.14
+      }
+    },
+    {
+      "id": "t_geocoding_gen_18",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
+        "latency_ms": 305.79,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 513.11,
+        "gen_feat_2": 0.509321,
+        "gen_feat_3": 505.53
+      }
+    },
+    {
+      "id": "t_library_gen_18",
+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 359.92,
+        "cost_usd": 0.0,
+        "availability": 0.988477,
+        "gen_feat_1": 486.84,
+        "gen_feat_2": 0.506086,
+        "gen_feat_3": 491.81
+      }
+    },
+    {
+      "id": "t_market_gen_18",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 396.22,
+        "cost_usd": 0.0,
+        "availability": 0.995237,
+        "gen_feat_1": 493.65,
+        "gen_feat_2": 0.500636,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_transit_gen_18",
+      "task_id": "t_transit",
+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
+      "features": {
+        "latency_ms": 462.39,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 501.67,
+        "gen_feat_2": 0.491163,
+        "gen_feat_3": 499.03
+      }
+    },
+    {
+      "id": "t_archive_gen_19",
+      "task_id": "t_archive",
+      "provider_id": "p_local",
+      "name": "Archive.org API (Gen p_local)",
+      "features": {
+        "latency_ms": 502.18,
+        "cost_usd": 0.0,
+        "availability": 0.968706,
+        "gen_feat_1": 495.6,
+        "gen_feat_2": 0.498742,
+        "gen_feat_3": 506.41
+      }
+    },
+    {
+      "id": "t_books_gen_19",
+      "task_id": "t_books",
+      "provider_id": "p_gen_1",
+      "name": "Google Books API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 255.45,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 499.08,
+        "gen_feat_2": 0.494606,
+        "gen_feat_3": 487.22
+      }
+    },
+    {
+      "id": "t_geocoding_gen_19",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 298.71,
+        "cost_usd": 0.0,
+        "availability": 0.984595,
+        "gen_feat_1": 506.0,
+        "gen_feat_2": 0.489207,
+        "gen_feat_3": 487.17
+      }
+    },
+    {
+      "id": "t_library_gen_19",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 349.04,
+        "cost_usd": 0.0,
+        "availability": 0.955429,
+        "gen_feat_1": 501.13,
+        "gen_feat_2": 0.493267,
+        "gen_feat_3": 496.62
+      }
+    },
+    {
+      "id": "t_market_gen_19",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 410.9,
+        "cost_usd": 0.0,
+        "availability": 0.993379,
+        "gen_feat_1": 490.28,
+        "gen_feat_2": 0.501509,
+        "gen_feat_3": 502.21
+      }
+    },
+    {
+      "id": "t_transit_gen_19",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 454.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 501.65,
+        "gen_feat_2": 0.495803,
+        "gen_feat_3": 486.73
+      }
+    },
+    {
+      "id": "t_archive_gen_20",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 491.89,
+        "cost_usd": 0.0,
+        "availability": 0.954168,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.488921,
+        "gen_feat_3": 509.7
+      }
+    },
+    {
+      "id": "t_books_gen_20",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 250.48,
+        "cost_usd": 0.0,
+        "availability": 0.985935,
+        "gen_feat_1": 512.77,
+        "gen_feat_2": 0.511517,
+        "gen_feat_3": 488.9
+      }
+    },
+    {
+      "id": "t_geocoding_gen_20",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 306.49,
+        "cost_usd": 0.0,
+        "availability": 0.967642,
+        "gen_feat_1": 498.42,
+        "gen_feat_2": 0.486838,
+        "gen_feat_3": 488.05
+      }
+    },
+    {
+      "id": "t_library_gen_20",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 344.14,
+        "cost_usd": 0.0,
+        "availability": 0.984042,
+        "gen_feat_1": 501.45,
+        "gen_feat_2": 0.506524,
+        "gen_feat_3": 498.32
+      }
+    },
+    {
+      "id": "t_market_gen_20",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 397.23,
+        "cost_usd": 0.0,
+        "availability": 0.960406,
+        "gen_feat_1": 507.18,
+        "gen_feat_2": 0.499712,
+        "gen_feat_3": 501.21
+      }
+    },
+    {
+      "id": "t_transit_gen_20",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 461.75,
+        "cost_usd": 0.0,
+        "availability": 0.979177,
+        "gen_feat_1": 486.25,
+        "gen_feat_2": 0.508921,
+        "gen_feat_3": 501.24
+      }
+    },
+    {
+      "id": "t_archive_gen_21",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 493.26,
+        "cost_usd": 0.0,
+        "availability": 0.989168,
+        "gen_feat_1": 509.91,
+        "gen_feat_2": 0.491803,
+        "gen_feat_3": 494.52
+      }
+    },
+    {
+      "id": "t_books_gen_21",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 254.37,
+        "cost_usd": 0.0,
+        "availability": 0.980876,
+        "gen_feat_1": 494.31,
+        "gen_feat_2": 0.512423,
+        "gen_feat_3": 487.61
+      }
+    },
+    {
+      "id": "t_geocoding_gen_21",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 0.976634,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.494573,
+        "gen_feat_3": 500.47
+      }
+    },
+    {
+      "id": "t_library_gen_21",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.76,
+        "cost_usd": 0.0,
+        "availability": 0.987565,
+        "gen_feat_1": 501.69,
+        "gen_feat_2": 0.494498,
+        "gen_feat_3": 497.28
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_books",
+          "kind": "TASK",
+          "task_id": "t_books"
+        },
+        {
+          "id": "n_parallel_options",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
+            {
               "id": "n_library_trip",
               "kind": "SEQ",
               "children": [
@@ -1157,35 +2146,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/cremaschi2018-textbook-access_multi_soft.json b/experimentation/instances/cremaschi2018-textbook-access_multi_soft.json
index 1015653..e110dca 100644
--- a/experimentation/instances/cremaschi2018-textbook-access_multi_soft.json
+++ b/experimentation/instances/cremaschi2018-textbook-access_multi_soft.json
@@ -3,13 +3,20 @@
     "id": "cremaschi2018-textbook-access_multi_soft",
     "name": "Book info retrieval (Cremaschi et al. 2018) [multi, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware instance derived from the running example in 'A Practical Approach to Services Composition Through Light Semantic Descriptions' (ESOCC 2018). QoS values are illustrative placeholders.",
     "paper": {
       "title": "A Practical Approach to Services Composition Through Light Semantic Descriptions",
       "authors": "M. Cremaschi et al.",
       "year": 2018,
       "doi": "10.1007/978-3-319-99819-0_10"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -322,21 +329,21 @@
       }
     },
     {
-      "id": "t_books_gen_2",
-      "task_id": "t_books",
+      "id": "t_archive_gen_2",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Books API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 251.51,
+        "latency_ms": 503.02,
         "cost_usd": 0.0,
-        "availability": 1.0,
+        "availability": 0.983367,
         "gen_feat_1": 494.43,
         "gen_feat_2": 0.49659,
         "gen_feat_3": 492.56
       }
     },
     {
-      "id": "t_books_gen_3",
+      "id": "t_books_gen_2",
       "task_id": "t_books",
       "provider_id": "p_archive",
       "name": "Google Books API (Gen p_archive)",
@@ -350,12 +357,12 @@
       }
     },
     {
-      "id": "t_books_gen_4",
-      "task_id": "t_books",
+      "id": "t_geocoding_gen_2",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Books API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 253.92,
+        "latency_ms": 304.7,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 496.81,
@@ -364,12 +371,12 @@
       }
     },
     {
-      "id": "t_books_gen_5",
-      "task_id": "t_books",
+      "id": "t_library_gen_2",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Books API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 243.92,
+        "latency_ms": 341.48,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.29,
@@ -378,26 +385,26 @@
       }
     },
     {
-      "id": "t_books_gen_6",
-      "task_id": "t_books",
+      "id": "t_market_gen_2",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Books API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 249.33,
+        "latency_ms": 398.93,
         "cost_usd": 0.0,
-        "availability": 0.968324,
+        "availability": 0.963458,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.489322,
         "gen_feat_3": 486.96
       }
     },
     {
-      "id": "t_books_gen_7",
-      "task_id": "t_books",
+      "id": "t_transit_gen_2",
+      "task_id": "t_transit",
       "provider_id": "p_gen_3",
-      "name": "Google Books API (Gen p_gen_3)",
+      "name": "Google Transit API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 244.56,
+        "latency_ms": 440.2,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 498.49,
@@ -406,21 +413,21 @@
       }
     },
     {
-      "id": "t_books_gen_8",
-      "task_id": "t_books",
+      "id": "t_archive_gen_3",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Books API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 249.93,
+        "latency_ms": 499.85,
         "cost_usd": 0.0,
-        "availability": 0.984683,
+        "availability": 0.959942,
         "gen_feat_1": 503.61,
         "gen_feat_2": 0.501017,
         "gen_feat_3": 501.49
       }
     },
     {
-      "id": "t_books_gen_9",
+      "id": "t_books_gen_3",
       "task_id": "t_books",
       "provider_id": "p_gen_5",
       "name": "Google Books API (Gen p_gen_5)",
@@ -434,35 +441,35 @@
       }
     },
     {
-      "id": "t_market_gen_2",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_3",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Amazon Market API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 390.51,
+        "latency_ms": 292.88,
         "cost_usd": 0.0,
-        "availability": 0.974193,
+        "availability": 0.979114,
         "gen_feat_1": 514.03,
         "gen_feat_2": 0.504606,
         "gen_feat_3": 509.78
       }
     },
     {
-      "id": "t_market_gen_3",
-      "task_id": "t_market",
+      "id": "t_library_gen_3",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Amazon Market API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 390.29,
+        "latency_ms": 341.51,
         "cost_usd": 0.0,
-        "availability": 0.964065,
+        "availability": 0.954327,
         "gen_feat_1": 490.39,
         "gen_feat_2": 0.510618,
         "gen_feat_3": 500.06
       }
     },
     {
-      "id": "t_market_gen_4",
+      "id": "t_market_gen_3",
       "task_id": "t_market",
       "provider_id": "p_unimib",
       "name": "Amazon Market API (Gen p_unimib)",
@@ -476,68 +483,68 @@
       }
     },
     {
-      "id": "t_market_gen_5",
-      "task_id": "t_market",
+      "id": "t_transit_gen_3",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Amazon Market API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 392.94,
+        "latency_ms": 442.05,
         "cost_usd": 0.0,
-        "availability": 0.963527,
+        "availability": 0.968394,
         "gen_feat_1": 512.48,
         "gen_feat_2": 0.514296,
         "gen_feat_3": 505.79
       }
     },
     {
-      "id": "t_market_gen_6",
-      "task_id": "t_market",
+      "id": "t_archive_gen_4",
+      "task_id": "t_archive",
       "provider_id": "p_local",
-      "name": "Amazon Market API (Gen p_local)",
+      "name": "Archive.org API (Gen p_local)",
       "features": {
-        "latency_ms": 393.03,
+        "latency_ms": 491.28,
         "cost_usd": 0.0,
-        "availability": 0.981369,
+        "availability": 0.961544,
         "gen_feat_1": 488.34,
         "gen_feat_2": 0.514668,
         "gen_feat_3": 505.0
       }
     },
     {
-      "id": "t_market_gen_7",
-      "task_id": "t_market",
+      "id": "t_books_gen_4",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Amazon Market API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 411.7,
+        "latency_ms": 257.31,
         "cost_usd": 0.0,
-        "availability": 0.985823,
+        "availability": 0.990802,
         "gen_feat_1": 500.86,
         "gen_feat_2": 0.497755,
         "gen_feat_3": 497.03
       }
     },
     {
-      "id": "t_market_gen_8",
-      "task_id": "t_market",
+      "id": "t_geocoding_gen_4",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Amazon Market API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 402.71,
+        "latency_ms": 302.03,
         "cost_usd": 0.0,
-        "availability": 0.991509,
+        "availability": 0.996517,
         "gen_feat_1": 505.13,
         "gen_feat_2": 0.49775,
         "gen_feat_3": 491.63
       }
     },
     {
-      "id": "t_market_gen_9",
-      "task_id": "t_market",
+      "id": "t_library_gen_4",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Amazon Market API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 402.55,
+        "latency_ms": 352.23,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 510.3,
@@ -546,77 +553,77 @@
       }
     },
     {
-      "id": "t_library_gen_2",
-      "task_id": "t_library",
+      "id": "t_market_gen_4",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "OPAC Library API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 345.85,
+        "latency_ms": 395.26,
         "cost_usd": 0.0,
-        "availability": 0.97661,
+        "availability": 0.986576,
         "gen_feat_1": 508.48,
         "gen_feat_2": 0.509068,
         "gen_feat_3": 505.91
       }
     },
     {
-      "id": "t_library_gen_3",
-      "task_id": "t_library",
+      "id": "t_transit_gen_4",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "OPAC Library API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 357.65,
+        "latency_ms": 459.83,
         "cost_usd": 0.0,
-        "availability": 0.995668,
+        "availability": 1.0,
         "gen_feat_1": 511.52,
         "gen_feat_2": 0.489245,
         "gen_feat_3": 489.95
       }
     },
     {
-      "id": "t_library_gen_4",
-      "task_id": "t_library",
+      "id": "t_archive_gen_5",
+      "task_id": "t_archive",
       "provider_id": "p_google",
-      "name": "OPAC Library API (Gen p_google)",
+      "name": "Archive.org API (Gen p_google)",
       "features": {
-        "latency_ms": 347.46,
+        "latency_ms": 496.36,
         "cost_usd": 0.0,
-        "availability": 0.961356,
+        "availability": 0.951546,
         "gen_feat_1": 510.48,
         "gen_feat_2": 0.509522,
         "gen_feat_3": 510.51
       }
     },
     {
-      "id": "t_library_gen_5",
-      "task_id": "t_library",
+      "id": "t_books_gen_5",
+      "task_id": "t_books",
       "provider_id": "p_amazon",
-      "name": "OPAC Library API (Gen p_amazon)",
+      "name": "Google Books API (Gen p_amazon)",
       "features": {
-        "latency_ms": 346.07,
+        "latency_ms": 247.2,
         "cost_usd": 0.0,
-        "availability": 0.99049,
+        "availability": 1.0,
         "gen_feat_1": 510.53,
         "gen_feat_2": 0.488512,
         "gen_feat_3": 513.85
       }
     },
     {
-      "id": "t_library_gen_6",
-      "task_id": "t_library",
+      "id": "t_geocoding_gen_5",
+      "task_id": "t_geocoding",
       "provider_id": "p_unimib",
-      "name": "OPAC Library API (Gen p_unimib)",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
       "features": {
-        "latency_ms": 353.12,
+        "latency_ms": 302.68,
         "cost_usd": 0.0,
-        "availability": 0.966548,
+        "availability": 0.981342,
         "gen_feat_1": 500.27,
         "gen_feat_2": 0.497436,
         "gen_feat_3": 511.73
       }
     },
     {
-      "id": "t_library_gen_7",
+      "id": "t_library_gen_5",
       "task_id": "t_library",
       "provider_id": "p_archive",
       "name": "OPAC Library API (Gen p_archive)",
@@ -630,12 +637,12 @@
       }
     },
     {
-      "id": "t_library_gen_8",
-      "task_id": "t_library",
+      "id": "t_market_gen_5",
+      "task_id": "t_market",
       "provider_id": "p_local",
-      "name": "OPAC Library API (Gen p_local)",
+      "name": "Amazon Market API (Gen p_local)",
       "features": {
-        "latency_ms": 357.15,
+        "latency_ms": 408.18,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 485.06,
@@ -644,40 +651,40 @@
       }
     },
     {
-      "id": "t_library_gen_9",
-      "task_id": "t_library",
+      "id": "t_transit_gen_5",
+      "task_id": "t_transit",
       "provider_id": "p_gen_1",
-      "name": "OPAC Library API (Gen p_gen_1)",
+      "name": "Google Transit API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 355.46,
+        "latency_ms": 457.02,
         "cost_usd": 0.0,
-        "availability": 0.970169,
+        "availability": 0.985019,
         "gen_feat_1": 490.3,
         "gen_feat_2": 0.497807,
         "gen_feat_3": 495.16
       }
     },
     {
-      "id": "t_geocoding_gen_2",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_6",
+      "task_id": "t_archive",
       "provider_id": "p_gen_2",
-      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "name": "Archive.org API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 293.3,
+        "latency_ms": 488.83,
         "cost_usd": 0.0,
-        "availability": 0.974652,
+        "availability": 0.950163,
         "gen_feat_1": 508.37,
         "gen_feat_2": 0.500348,
         "gen_feat_3": 495.48
       }
     },
     {
-      "id": "t_geocoding_gen_3",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_6",
+      "task_id": "t_books",
       "provider_id": "p_gen_3",
-      "name": "Google Maps Geocoding API (Gen p_gen_3)",
+      "name": "Google Books API (Gen p_gen_3)",
       "features": {
-        "latency_ms": 298.14,
+        "latency_ms": 248.45,
         "cost_usd": 0.0,
         "availability": 0.985441,
         "gen_feat_1": 501.06,
@@ -686,7 +693,7 @@
       }
     },
     {
-      "id": "t_geocoding_gen_4",
+      "id": "t_geocoding_gen_6",
       "task_id": "t_geocoding",
       "provider_id": "p_gen_4",
       "name": "Google Maps Geocoding API (Gen p_gen_4)",
@@ -700,40 +707,40 @@
       }
     },
     {
-      "id": "t_geocoding_gen_5",
-      "task_id": "t_geocoding",
+      "id": "t_library_gen_6",
+      "task_id": "t_library",
       "provider_id": "p_gen_5",
-      "name": "Google Maps Geocoding API (Gen p_gen_5)",
+      "name": "OPAC Library API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 292.44,
+        "latency_ms": 341.19,
         "cost_usd": 0.0,
-        "availability": 0.970116,
+        "availability": 0.955491,
         "gen_feat_1": 506.54,
         "gen_feat_2": 0.485388,
         "gen_feat_3": 493.46
       }
     },
     {
-      "id": "t_geocoding_gen_6",
-      "task_id": "t_geocoding",
+      "id": "t_market_gen_6",
+      "task_id": "t_market",
       "provider_id": "p_google",
-      "name": "Google Maps Geocoding API (Gen p_google)",
+      "name": "Amazon Market API (Gen p_google)",
       "features": {
-        "latency_ms": 296.68,
+        "latency_ms": 395.58,
         "cost_usd": 0.0,
-        "availability": 0.979126,
+        "availability": 0.974206,
         "gen_feat_1": 503.49,
         "gen_feat_2": 0.509299,
         "gen_feat_3": 501.7
       }
     },
     {
-      "id": "t_geocoding_gen_7",
-      "task_id": "t_geocoding",
+      "id": "t_transit_gen_6",
+      "task_id": "t_transit",
       "provider_id": "p_amazon",
-      "name": "Google Maps Geocoding API (Gen p_amazon)",
+      "name": "Google Transit API (Gen p_amazon)",
       "features": {
-        "latency_ms": 299.92,
+        "latency_ms": 449.88,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 492.43,
@@ -742,26 +749,26 @@
       }
     },
     {
-      "id": "t_geocoding_gen_8",
-      "task_id": "t_geocoding",
+      "id": "t_archive_gen_7",
+      "task_id": "t_archive",
       "provider_id": "p_unimib",
-      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "name": "Archive.org API (Gen p_unimib)",
       "features": {
-        "latency_ms": 291.86,
+        "latency_ms": 486.44,
         "cost_usd": 0.0,
-        "availability": 0.967929,
+        "availability": 0.943609,
         "gen_feat_1": 500.94,
         "gen_feat_2": 0.487602,
         "gen_feat_3": 501.12
       }
     },
     {
-      "id": "t_geocoding_gen_9",
-      "task_id": "t_geocoding",
+      "id": "t_books_gen_7",
+      "task_id": "t_books",
       "provider_id": "p_archive",
-      "name": "Google Maps Geocoding API (Gen p_archive)",
+      "name": "Google Books API (Gen p_archive)",
       "features": {
-        "latency_ms": 303.57,
+        "latency_ms": 252.98,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 490.48,
@@ -770,12 +777,12 @@
       }
     },
     {
-      "id": "t_transit_gen_2",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_7",
+      "task_id": "t_geocoding",
       "provider_id": "p_local",
-      "name": "Google Transit API (Gen p_local)",
+      "name": "Google Maps Geocoding API (Gen p_local)",
       "features": {
-        "latency_ms": 447.81,
+        "latency_ms": 298.54,
         "cost_usd": 0.0,
         "availability": 0.97876,
         "gen_feat_1": 487.34,
@@ -784,35 +791,35 @@
       }
     },
     {
-      "id": "t_transit_gen_3",
-      "task_id": "t_transit",
+      "id": "t_library_gen_7",
+      "task_id": "t_library",
       "provider_id": "p_gen_1",
-      "name": "Google Transit API (Gen p_gen_1)",
+      "name": "OPAC Library API (Gen p_gen_1)",
       "features": {
-        "latency_ms": 454.73,
+        "latency_ms": 353.68,
         "cost_usd": 0.0,
-        "availability": 0.982378,
+        "availability": 0.967568,
         "gen_feat_1": 508.31,
         "gen_feat_2": 0.486183,
         "gen_feat_3": 501.39
       }
     },
     {
-      "id": "t_transit_gen_4",
-      "task_id": "t_transit",
+      "id": "t_market_gen_7",
+      "task_id": "t_market",
       "provider_id": "p_gen_2",
-      "name": "Google Transit API (Gen p_gen_2)",
+      "name": "Amazon Market API (Gen p_gen_2)",
       "features": {
-        "latency_ms": 463.1,
+        "latency_ms": 411.64,
         "cost_usd": 0.0,
-        "availability": 0.967212,
+        "availability": 0.962352,
         "gen_feat_1": 512.89,
         "gen_feat_2": 0.512956,
         "gen_feat_3": 495.23
       }
     },
     {
-      "id": "t_transit_gen_5",
+      "id": "t_transit_gen_7",
       "task_id": "t_transit",
       "provider_id": "p_gen_3",
       "name": "Google Transit API (Gen p_gen_3)",
@@ -826,26 +833,26 @@
       }
     },
     {
-      "id": "t_transit_gen_6",
-      "task_id": "t_transit",
+      "id": "t_archive_gen_8",
+      "task_id": "t_archive",
       "provider_id": "p_gen_4",
-      "name": "Google Transit API (Gen p_gen_4)",
+      "name": "Archive.org API (Gen p_gen_4)",
       "features": {
-        "latency_ms": 440.18,
+        "latency_ms": 489.09,
         "cost_usd": 0.0,
-        "availability": 0.991733,
+        "availability": 0.966816,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.504993,
         "gen_feat_3": 492.89
       }
     },
     {
-      "id": "t_transit_gen_7",
-      "task_id": "t_transit",
+      "id": "t_books_gen_8",
+      "task_id": "t_books",
       "provider_id": "p_gen_5",
-      "name": "Google Transit API (Gen p_gen_5)",
+      "name": "Google Books API (Gen p_gen_5)",
       "features": {
-        "latency_ms": 462.92,
+        "latency_ms": 257.18,
         "cost_usd": 0.0,
         "availability": 0.996902,
         "gen_feat_1": 511.69,
@@ -854,12 +861,12 @@
       }
     },
     {
-      "id": "t_transit_gen_8",
-      "task_id": "t_transit",
+      "id": "t_geocoding_gen_8",
+      "task_id": "t_geocoding",
       "provider_id": "p_google",
-      "name": "Google Transit API (Gen p_google)",
+      "name": "Google Maps Geocoding API (Gen p_google)",
       "features": {
-        "latency_ms": 437.2,
+        "latency_ms": 291.47,
         "cost_usd": 0.0,
         "availability": 1.0,
         "gen_feat_1": 486.88,
@@ -868,49 +875,49 @@
       }
     },
     {
-      "id": "t_transit_gen_9",
-      "task_id": "t_transit",
+      "id": "t_library_gen_8",
+      "task_id": "t_library",
       "provider_id": "p_amazon",
-      "name": "Google Transit API (Gen p_amazon)",
+      "name": "OPAC Library API (Gen p_amazon)",
       "features": {
-        "latency_ms": 454.11,
+        "latency_ms": 353.19,
         "cost_usd": 0.0,
-        "availability": 0.993251,
+        "availability": 0.978277,
         "gen_feat_1": 496.88,
         "gen_feat_2": 0.494363,
         "gen_feat_3": 508.7
       }
     },
     {
-      "id": "t_archive_gen_2",
-      "task_id": "t_archive",
+      "id": "t_market_gen_8",
+      "task_id": "t_market",
       "provider_id": "p_unimib",
-      "name": "Archive.org API (Gen p_unimib)",
+      "name": "Amazon Market API (Gen p_unimib)",
       "features": {
-        "latency_ms": 491.38,
+        "latency_ms": 393.1,
         "cost_usd": 0.0,
-        "availability": 0.97419,
+        "availability": 0.994276,
         "gen_feat_1": 488.94,
         "gen_feat_2": 0.490436,
         "gen_feat_3": 502.27
       }
     },
     {
-      "id": "t_archive_gen_3",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_8",
+      "task_id": "t_transit",
       "provider_id": "p_archive",
-      "name": "Archive.org API (Gen p_archive)",
+      "name": "Google Transit API (Gen p_archive)",
       "features": {
-        "latency_ms": 493.0,
+        "latency_ms": 443.7,
         "cost_usd": 0.0,
-        "availability": 0.974135,
+        "availability": 0.999241,
         "gen_feat_1": 509.85,
         "gen_feat_2": 0.501448,
         "gen_feat_3": 508.14
       }
     },
     {
-      "id": "t_archive_gen_4",
+      "id": "t_archive_gen_9",
       "task_id": "t_archive",
       "provider_id": "p_local",
       "name": "Archive.org API (Gen p_local)",
@@ -924,96 +931,1076 @@
       }
     },
     {
-      "id": "t_archive_gen_5",
-      "task_id": "t_archive",
+      "id": "t_books_gen_9",
+      "task_id": "t_books",
       "provider_id": "p_gen_1",
-      "name": "Archive.org API (Gen p_gen_1)",
+      "name": "Google Books API (Gen p_gen_1)",
       "features": {
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+        "latency_ms": 244.58,
         "cost_usd": 0.0,
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         "gen_feat_2": 0.513697,
         "gen_feat_3": 499.99
       }
     },
     {
-      "id": "t_archive_gen_6",
-      "task_id": "t_archive",
+      "id": "t_geocoding_gen_9",
+      "task_id": "t_geocoding",
       "provider_id": "p_gen_2",
-      "name": "Archive.org API (Gen p_gen_2)",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
       "features": {
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+        "latency_ms": 294.24,
         "cost_usd": 0.0,
-        "availability": 0.989264,
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         "gen_feat_2": 0.492021,
         "gen_feat_3": 511.64
       }
     },
     {
-      "id": "t_archive_gen_7",
-      "task_id": "t_archive",
+      "id": "t_library_gen_9",
+      "task_id": "t_library",
       "provider_id": "p_gen_3",
-      "name": "Archive.org API (Gen p_gen_3)",
+      "name": "OPAC Library API (Gen p_gen_3)",
       "features": {
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+        "latency_ms": 345.67,
         "cost_usd": 0.0,
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         "gen_feat_3": 488.6
       }
     },
     {
-      "id": "t_archive_gen_8",
-      "task_id": "t_archive",
+      "id": "t_market_gen_9",
+      "task_id": "t_market",
       "provider_id": "p_gen_4",
-      "name": "Archive.org API (Gen p_gen_4)",
+      "name": "Amazon Market API (Gen p_gen_4)",
       "features": {
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         "gen_feat_3": 512.55
       }
     },
     {
-      "id": "t_archive_gen_9",
-      "task_id": "t_archive",
+      "id": "t_transit_gen_9",
+      "task_id": "t_transit",
       "provider_id": "p_gen_5",
-      "name": "Archive.org API (Gen p_gen_5)",
+      "name": "Google Transit API (Gen p_gen_5)",
       "features": {
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+        "latency_ms": 447.4,
         "cost_usd": 0.0,
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         "gen_feat_2": 0.487091,
         "gen_feat_3": 488.33
       }
-    }
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-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_books",
-          "kind": "TASK",
-          "task_id": "t_books"
-        },
-        {
-          "id": "n_parallel_options",
-          "kind": "AND",
-          "children": [
-            {
-              "id": "n_amazon",
-              "kind": "TASK",
-              "task_id": "t_market"
-            },
+    },
+    {
+      "id": "t_archive_gen_10",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
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+      }
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+    {
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+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
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+        "gen_feat_2": 0.500114,
+        "gen_feat_3": 485.88
+      }
+    },
+    {
+      "id": "t_geocoding_gen_10",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
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+    },
+    {
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+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
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+      }
+    },
+    {
+      "id": "t_market_gen_10",
+      "task_id": "t_market",
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+      "name": "Amazon Market API (Gen p_local)",
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+      "name": "Google Transit API (Gen p_gen_1)",
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+      }
+    },
+    {
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+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
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+      }
+    },
+    {
+      "id": "t_books_gen_11",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
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+        "gen_feat_3": 486.01
+      }
+    },
+    {
+      "id": "t_geocoding_gen_11",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
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+      }
+    },
+    {
+      "id": "t_library_gen_11",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
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+      }
+    },
+    {
+      "id": "t_market_gen_11",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
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+    {
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+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
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+    {
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+      "task_id": "t_books",
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+      "name": "Google Books API (Gen p_archive)",
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+    },
+    {
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+      "name": "Google Maps Geocoding API (Gen p_local)",
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+    },
+    {
+      "id": "t_library_gen_12",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
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+    },
+    {
+      "id": "t_market_gen_12",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
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+    },
+    {
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+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
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+    },
+    {
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+      "task_id": "t_archive",
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+      "name": "Archive.org API (Gen p_gen_4)",
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+    {
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+    {
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+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
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+    {
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+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
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+    {
+      "id": "t_market_gen_13",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
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+    {
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+      "name": "Google Transit API (Gen p_archive)",
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+    {
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+    {
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+      "name": "Google Books API (Gen p_gen_1)",
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+    {
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+    {
+      "id": "t_library_gen_14",
+      "task_id": "t_library",
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+      "name": "OPAC Library API (Gen p_gen_3)",
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+    {
+      "id": "t_market_gen_14",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
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+      "name": "Google Transit API (Gen p_gen_5)",
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+    {
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+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
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+      "name": "Amazon Market API (Gen p_local)",
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+    {
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+      "task_id": "t_archive",
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+    {
+      "id": "t_books_gen_16",
+      "task_id": "t_books",
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+      "name": "Google Books API (Gen p_gen_3)",
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+    {
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+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 296.57,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 508.98,
+        "gen_feat_2": 0.510338,
+        "gen_feat_3": 505.47
+      }
+    },
+    {
+      "id": "t_library_gen_16",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 340.37,
+        "cost_usd": 0.0,
+        "availability": 0.997765,
+        "gen_feat_1": 490.71,
+        "gen_feat_2": 0.49556,
+        "gen_feat_3": 496.32
+      }
+    },
+    {
+      "id": "t_market_gen_16",
+      "task_id": "t_market",
+      "provider_id": "p_google",
+      "name": "Amazon Market API (Gen p_google)",
+      "features": {
+        "latency_ms": 402.17,
+        "cost_usd": 0.0,
+        "availability": 0.988339,
+        "gen_feat_1": 507.16,
+        "gen_feat_2": 0.510104,
+        "gen_feat_3": 510.52
+      }
+    },
+    {
+      "id": "t_transit_gen_16",
+      "task_id": "t_transit",
+      "provider_id": "p_amazon",
+      "name": "Google Transit API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 460.67,
+        "cost_usd": 0.0,
+        "availability": 0.986271,
+        "gen_feat_1": 510.91,
+        "gen_feat_2": 0.514415,
+        "gen_feat_3": 505.0
+      }
+    },
+    {
+      "id": "t_archive_gen_17",
+      "task_id": "t_archive",
+      "provider_id": "p_unimib",
+      "name": "Archive.org API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 494.13,
+        "cost_usd": 0.0,
+        "availability": 0.98922,
+        "gen_feat_1": 489.74,
+        "gen_feat_2": 0.487627,
+        "gen_feat_3": 494.31
+      }
+    },
+    {
+      "id": "t_books_gen_17",
+      "task_id": "t_books",
+      "provider_id": "p_archive",
+      "name": "Google Books API (Gen p_archive)",
+      "features": {
+        "latency_ms": 253.97,
+        "cost_usd": 0.0,
+        "availability": 0.978471,
+        "gen_feat_1": 506.36,
+        "gen_feat_2": 0.502386,
+        "gen_feat_3": 508.92
+      }
+    },
+    {
+      "id": "t_geocoding_gen_17",
+      "task_id": "t_geocoding",
+      "provider_id": "p_local",
+      "name": "Google Maps Geocoding API (Gen p_local)",
+      "features": {
+        "latency_ms": 293.01,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.22,
+        "gen_feat_2": 0.490263,
+        "gen_feat_3": 487.28
+      }
+    },
+    {
+      "id": "t_library_gen_17",
+      "task_id": "t_library",
+      "provider_id": "p_gen_1",
+      "name": "OPAC Library API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 360.41,
+        "cost_usd": 0.0,
+        "availability": 0.963085,
+        "gen_feat_1": 498.39,
+        "gen_feat_2": 0.507309,
+        "gen_feat_3": 500.97
+      }
+    },
+    {
+      "id": "t_market_gen_17",
+      "task_id": "t_market",
+      "provider_id": "p_gen_2",
+      "name": "Amazon Market API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 391.34,
+        "cost_usd": 0.0,
+        "availability": 0.977601,
+        "gen_feat_1": 512.08,
+        "gen_feat_2": 0.507459,
+        "gen_feat_3": 493.66
+      }
+    },
+    {
+      "id": "t_transit_gen_17",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_3",
+      "name": "Google Transit API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 456.09,
+        "cost_usd": 0.0,
+        "availability": 0.974062,
+        "gen_feat_1": 485.07,
+        "gen_feat_2": 0.512164,
+        "gen_feat_3": 502.07
+      }
+    },
+    {
+      "id": "t_archive_gen_18",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_4",
+      "name": "Archive.org API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 514.54,
+        "cost_usd": 0.0,
+        "availability": 0.990269,
+        "gen_feat_1": 493.86,
+        "gen_feat_2": 0.492328,
+        "gen_feat_3": 500.81
+      }
+    },
+    {
+      "id": "t_books_gen_18",
+      "task_id": "t_books",
+      "provider_id": "p_gen_5",
+      "name": "Google Books API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 247.12,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 510.27,
+        "gen_feat_2": 0.49525,
+        "gen_feat_3": 490.14
+      }
+    },
+    {
+      "id": "t_geocoding_gen_18",
+      "task_id": "t_geocoding",
+      "provider_id": "p_google",
+      "name": "Google Maps Geocoding API (Gen p_google)",
+      "features": {
+        "latency_ms": 305.79,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 513.11,
+        "gen_feat_2": 0.509321,
+        "gen_feat_3": 505.53
+      }
+    },
+    {
+      "id": "t_library_gen_18",
+      "task_id": "t_library",
+      "provider_id": "p_amazon",
+      "name": "OPAC Library API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 359.92,
+        "cost_usd": 0.0,
+        "availability": 0.988477,
+        "gen_feat_1": 486.84,
+        "gen_feat_2": 0.506086,
+        "gen_feat_3": 491.81
+      }
+    },
+    {
+      "id": "t_market_gen_18",
+      "task_id": "t_market",
+      "provider_id": "p_unimib",
+      "name": "Amazon Market API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 396.22,
+        "cost_usd": 0.0,
+        "availability": 0.995237,
+        "gen_feat_1": 493.65,
+        "gen_feat_2": 0.500636,
+        "gen_feat_3": 503.98
+      }
+    },
+    {
+      "id": "t_transit_gen_18",
+      "task_id": "t_transit",
+      "provider_id": "p_archive",
+      "name": "Google Transit API (Gen p_archive)",
+      "features": {
+        "latency_ms": 462.39,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 501.67,
+        "gen_feat_2": 0.491163,
+        "gen_feat_3": 499.03
+      }
+    },
+    {
+      "id": "t_archive_gen_19",
+      "task_id": "t_archive",
+      "provider_id": "p_local",
+      "name": "Archive.org API (Gen p_local)",
+      "features": {
+        "latency_ms": 502.18,
+        "cost_usd": 0.0,
+        "availability": 0.968706,
+        "gen_feat_1": 495.6,
+        "gen_feat_2": 0.498742,
+        "gen_feat_3": 506.41
+      }
+    },
+    {
+      "id": "t_books_gen_19",
+      "task_id": "t_books",
+      "provider_id": "p_gen_1",
+      "name": "Google Books API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 255.45,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 499.08,
+        "gen_feat_2": 0.494606,
+        "gen_feat_3": 487.22
+      }
+    },
+    {
+      "id": "t_geocoding_gen_19",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_2",
+      "name": "Google Maps Geocoding API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 298.71,
+        "cost_usd": 0.0,
+        "availability": 0.984595,
+        "gen_feat_1": 506.0,
+        "gen_feat_2": 0.489207,
+        "gen_feat_3": 487.17
+      }
+    },
+    {
+      "id": "t_library_gen_19",
+      "task_id": "t_library",
+      "provider_id": "p_gen_3",
+      "name": "OPAC Library API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 349.04,
+        "cost_usd": 0.0,
+        "availability": 0.955429,
+        "gen_feat_1": 501.13,
+        "gen_feat_2": 0.493267,
+        "gen_feat_3": 496.62
+      }
+    },
+    {
+      "id": "t_market_gen_19",
+      "task_id": "t_market",
+      "provider_id": "p_gen_4",
+      "name": "Amazon Market API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 410.9,
+        "cost_usd": 0.0,
+        "availability": 0.993379,
+        "gen_feat_1": 490.28,
+        "gen_feat_2": 0.501509,
+        "gen_feat_3": 502.21
+      }
+    },
+    {
+      "id": "t_transit_gen_19",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_5",
+      "name": "Google Transit API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 454.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 501.65,
+        "gen_feat_2": 0.495803,
+        "gen_feat_3": 486.73
+      }
+    },
+    {
+      "id": "t_archive_gen_20",
+      "task_id": "t_archive",
+      "provider_id": "p_google",
+      "name": "Archive.org API (Gen p_google)",
+      "features": {
+        "latency_ms": 491.89,
+        "cost_usd": 0.0,
+        "availability": 0.954168,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.488921,
+        "gen_feat_3": 509.7
+      }
+    },
+    {
+      "id": "t_books_gen_20",
+      "task_id": "t_books",
+      "provider_id": "p_amazon",
+      "name": "Google Books API (Gen p_amazon)",
+      "features": {
+        "latency_ms": 250.48,
+        "cost_usd": 0.0,
+        "availability": 0.985935,
+        "gen_feat_1": 512.77,
+        "gen_feat_2": 0.511517,
+        "gen_feat_3": 488.9
+      }
+    },
+    {
+      "id": "t_geocoding_gen_20",
+      "task_id": "t_geocoding",
+      "provider_id": "p_unimib",
+      "name": "Google Maps Geocoding API (Gen p_unimib)",
+      "features": {
+        "latency_ms": 306.49,
+        "cost_usd": 0.0,
+        "availability": 0.967642,
+        "gen_feat_1": 498.42,
+        "gen_feat_2": 0.486838,
+        "gen_feat_3": 488.05
+      }
+    },
+    {
+      "id": "t_library_gen_20",
+      "task_id": "t_library",
+      "provider_id": "p_archive",
+      "name": "OPAC Library API (Gen p_archive)",
+      "features": {
+        "latency_ms": 344.14,
+        "cost_usd": 0.0,
+        "availability": 0.984042,
+        "gen_feat_1": 501.45,
+        "gen_feat_2": 0.506524,
+        "gen_feat_3": 498.32
+      }
+    },
+    {
+      "id": "t_market_gen_20",
+      "task_id": "t_market",
+      "provider_id": "p_local",
+      "name": "Amazon Market API (Gen p_local)",
+      "features": {
+        "latency_ms": 397.23,
+        "cost_usd": 0.0,
+        "availability": 0.960406,
+        "gen_feat_1": 507.18,
+        "gen_feat_2": 0.499712,
+        "gen_feat_3": 501.21
+      }
+    },
+    {
+      "id": "t_transit_gen_20",
+      "task_id": "t_transit",
+      "provider_id": "p_gen_1",
+      "name": "Google Transit API (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 461.75,
+        "cost_usd": 0.0,
+        "availability": 0.979177,
+        "gen_feat_1": 486.25,
+        "gen_feat_2": 0.508921,
+        "gen_feat_3": 501.24
+      }
+    },
+    {
+      "id": "t_archive_gen_21",
+      "task_id": "t_archive",
+      "provider_id": "p_gen_2",
+      "name": "Archive.org API (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 493.26,
+        "cost_usd": 0.0,
+        "availability": 0.989168,
+        "gen_feat_1": 509.91,
+        "gen_feat_2": 0.491803,
+        "gen_feat_3": 494.52
+      }
+    },
+    {
+      "id": "t_books_gen_21",
+      "task_id": "t_books",
+      "provider_id": "p_gen_3",
+      "name": "Google Books API (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 254.37,
+        "cost_usd": 0.0,
+        "availability": 0.980876,
+        "gen_feat_1": 494.31,
+        "gen_feat_2": 0.512423,
+        "gen_feat_3": 487.61
+      }
+    },
+    {
+      "id": "t_geocoding_gen_21",
+      "task_id": "t_geocoding",
+      "provider_id": "p_gen_4",
+      "name": "Google Maps Geocoding API (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 303.51,
+        "cost_usd": 0.0,
+        "availability": 0.976634,
+        "gen_feat_1": 501.03,
+        "gen_feat_2": 0.494573,
+        "gen_feat_3": 500.47
+      }
+    },
+    {
+      "id": "t_library_gen_21",
+      "task_id": "t_library",
+      "provider_id": "p_gen_5",
+      "name": "OPAC Library API (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 350.76,
+        "cost_usd": 0.0,
+        "availability": 0.987565,
+        "gen_feat_1": 501.69,
+        "gen_feat_2": 0.494498,
+        "gen_feat_3": 497.28
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_books",
+          "kind": "TASK",
+          "task_id": "t_books"
+        },
+        {
+          "id": "n_parallel_options",
+          "kind": "AND",
+          "children": [
+            {
+              "id": "n_amazon",
+              "kind": "TASK",
+              "task_id": "t_market"
+            },
             {
               "id": "n_library_trip",
               "kind": "SEQ",
@@ -1157,35 +2144,25 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1357.94,
+      "value": 1407.94,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_archive_cost_usd_1",
+      "id": "gen_c_local_t_market_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_archive"
+        "t_market"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 0.0,
+      "value": 503.37,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_books",
-        "t_geocoding"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_archive",
         "t_books"
diff --git a/experimentation/instances/netedu2020-transport-agency_many_hard.json b/experimentation/instances/netedu2020-transport-agency_many_hard.json
index 6868c3a..b69b1cd 100644
--- a/experimentation/instances/netedu2020-transport-agency_many_hard.json
+++ b/experimentation/instances/netedu2020-transport-agency_many_hard.json
@@ -3,13 +3,22 @@
     "id": "netedu2020-transport-agency_many_hard",
     "name": "Transport Agency case study (Netedu et al. 2020) [many, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -260,10 +269,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +281,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +293,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +305,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +317,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +329,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +341,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +353,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +365,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +389,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +401,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +413,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +425,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +437,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +449,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +461,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +473,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +485,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +497,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +509,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +521,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +533,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +545,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +557,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +569,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +581,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +593,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +605,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +617,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +629,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +641,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +653,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +665,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +677,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +689,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +701,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +713,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +725,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +737,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +749,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +761,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +773,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +785,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +797,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +809,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +821,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,52 +843,892 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root_seq",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
-  "aggregation_policies": {
-    "cost": {
-      "neutral": 0,
-      "compose": {
-        "seq": {
+    },
+    {
+      "id": "t_get_closest_city_gen_10",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 486.77,
+        "gen_feat_2": 0.489326,
+        "gen_feat_3": 507.7
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_10",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.98,
+        "gen_feat_2": 0.500477,
+        "gen_feat_3": 509.78
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_10",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 485.17,
+        "gen_feat_2": 0.500767,
+        "gen_feat_3": 486.6
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_10",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 490.48,
+        "gen_feat_2": 0.505158,
+        "gen_feat_3": 505.25
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_10",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 491.16,
+        "gen_feat_2": 0.486032,
+        "gen_feat_3": 509.57
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_10",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 496.63,
+        "gen_feat_2": 0.509624,
+        "gen_feat_3": 496.87
+      }
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+        "gen_feat_2": 0.514598,
+        "gen_feat_3": 506.55
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_19",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 507.45,
+        "gen_feat_2": 0.492323,
+        "gen_feat_3": 510.85
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_20",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 493.26,
+        "gen_feat_2": 0.506567,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_20",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 502.98,
+        "gen_feat_2": 0.508161,
+        "gen_feat_3": 488.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_20",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 514.45,
+        "gen_feat_2": 0.502197,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_20",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.37,
+        "gen_feat_2": 0.49849,
+        "gen_feat_3": 512.98
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_20",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 501.14,
+        "gen_feat_2": 0.508529,
+        "gen_feat_3": 506.18
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_20",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.58,
+        "gen_feat_2": 0.494087,
+        "gen_feat_3": 491.56
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_21",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 507.88,
+        "gen_feat_2": 0.512349,
+        "gen_feat_3": 505.21
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_21",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 486.2,
+        "gen_feat_2": 0.513433,
+        "gen_feat_3": 508.91
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_21",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 494.32,
+        "gen_feat_2": 0.512134,
+        "gen_feat_3": 506.13
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
+        "seq": {
           "fn": "SUM"
         }
       }
@@ -938,19 +1787,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": true
     },
     {
@@ -962,16 +1811,6 @@
         "t_get_country_from_location"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/netedu2020-transport-agency_many_soft.json b/experimentation/instances/netedu2020-transport-agency_many_soft.json
index 96e3eef..2c17341 100644
--- a/experimentation/instances/netedu2020-transport-agency_many_soft.json
+++ b/experimentation/instances/netedu2020-transport-agency_many_soft.json
@@ -3,13 +3,20 @@
     "id": "netedu2020-transport-agency_many_soft",
     "name": "Transport Agency case study (Netedu et al. 2020) [many, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -260,10 +267,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +279,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +291,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +303,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +315,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +327,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +339,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +351,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +363,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +387,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +399,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +411,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +423,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +435,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +447,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +459,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +471,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +483,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +495,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +507,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +519,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +531,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +543,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +555,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +567,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +579,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +591,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +603,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +615,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +627,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +639,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +651,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +663,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +675,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +687,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +699,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +711,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +723,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +735,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +747,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +759,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +771,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +783,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +795,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +807,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +819,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,51 +841,891 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root_seq",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
-  "aggregation_policies": {
-    "cost": {
-      "neutral": 0,
-      "compose": {
+    },
+    {
+      "id": "t_get_closest_city_gen_10",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 486.77,
+        "gen_feat_2": 0.489326,
+        "gen_feat_3": 507.7
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_10",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.98,
+        "gen_feat_2": 0.500477,
+        "gen_feat_3": 509.78
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_10",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 485.17,
+        "gen_feat_2": 0.500767,
+        "gen_feat_3": 486.6
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_10",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 490.48,
+        "gen_feat_2": 0.505158,
+        "gen_feat_3": 505.25
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_10",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 491.16,
+        "gen_feat_2": 0.486032,
+        "gen_feat_3": 509.57
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_10",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 496.63,
+        "gen_feat_2": 0.509624,
+        "gen_feat_3": 496.87
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_11",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 512.73,
+        "gen_feat_2": 0.488821,
+        "gen_feat_3": 508.53
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_11",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 498.85,
+        "gen_feat_2": 0.499704,
+        "gen_feat_3": 508.28
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_11",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 508.95,
+        "gen_feat_2": 0.489493,
+        "gen_feat_3": 497.44
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_11",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
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+        "gen_feat_1": 500.48,
+        "gen_feat_2": 0.504253,
+        "gen_feat_3": 497.42
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_11",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.13,
+        "gen_feat_2": 0.508674,
+        "gen_feat_3": 508.35
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_11",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 510.58,
+        "gen_feat_2": 0.494516,
+        "gen_feat_3": 490.77
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_12",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 488.77,
+        "gen_feat_2": 0.49366,
+        "gen_feat_3": 505.73
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_12",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 508.51,
+        "gen_feat_2": 0.501041,
+        "gen_feat_3": 514.6
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_12",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 508.13,
+        "gen_feat_2": 0.509104,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_12",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 493.59,
+        "gen_feat_2": 0.485843,
+        "gen_feat_3": 508.8
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_12",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 502.71,
+        "gen_feat_2": 0.504945,
+        "gen_feat_3": 513.46
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_12",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 497.06,
+        "gen_feat_2": 0.512886,
+        "gen_feat_3": 497.51
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_13",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.46,
+        "gen_feat_2": 0.500723,
+        "gen_feat_3": 501.8
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_13",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 501.79,
+        "gen_feat_2": 0.500158,
+        "gen_feat_3": 500.89
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_13",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.92,
+        "gen_feat_2": 0.497718,
+        "gen_feat_3": 506.35
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_13",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 511.51,
+        "gen_feat_2": 0.511025,
+        "gen_feat_3": 490.69
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_13",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 499.2,
+        "gen_feat_2": 0.508206,
+        "gen_feat_3": 501.07
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_13",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 498.51,
+        "gen_feat_2": 0.496857,
+        "gen_feat_3": 507.17
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_14",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 501.01,
+        "gen_feat_2": 0.492277,
+        "gen_feat_3": 497.24
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_14",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 509.5,
+        "gen_feat_2": 0.507879,
+        "gen_feat_3": 505.22
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_14",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 502.32,
+        "gen_feat_2": 0.494188,
+        "gen_feat_3": 511.73
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_14",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 510.92,
+        "gen_feat_2": 0.489375,
+        "gen_feat_3": 486.68
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_14",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 496.79,
+        "gen_feat_2": 0.498835,
+        "gen_feat_3": 509.02
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_14",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.21,
+        "gen_feat_2": 0.487213,
+        "gen_feat_3": 502.39
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_15",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 514.96,
+        "gen_feat_2": 0.489112,
+        "gen_feat_3": 506.15
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_15",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 496.48,
+        "gen_feat_2": 0.513266,
+        "gen_feat_3": 503.99
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_15",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 513.41,
+        "gen_feat_2": 0.503632,
+        "gen_feat_3": 504.93
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_15",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 498.59,
+        "gen_feat_2": 0.496426,
+        "gen_feat_3": 485.84
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_15",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 503.52,
+        "gen_feat_2": 0.497684,
+        "gen_feat_3": 496.1
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_15",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.32,
+        "gen_feat_2": 0.493395,
+        "gen_feat_3": 503.3
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_16",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.64,
+        "gen_feat_2": 0.509564,
+        "gen_feat_3": 510.81
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_16",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 502.39,
+        "gen_feat_2": 0.505374,
+        "gen_feat_3": 489.28
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_16",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 513.61,
+        "gen_feat_2": 0.505365,
+        "gen_feat_3": 513.96
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_16",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 513.1,
+        "gen_feat_2": 0.495957,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_16",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 502.45,
+        "gen_feat_2": 0.486044,
+        "gen_feat_3": 489.01
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_16",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.03,
+        "gen_feat_2": 0.485355,
+        "gen_feat_3": 499.2
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_17",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.31,
+        "gen_feat_2": 0.513504,
+        "gen_feat_3": 486.62
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_17",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 509.24,
+        "gen_feat_2": 0.495334,
+        "gen_feat_3": 489.1
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_17",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.86,
+        "gen_feat_2": 0.50226,
+        "gen_feat_3": 493.5
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_17",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 500.87,
+        "gen_feat_2": 0.486062,
+        "gen_feat_3": 508.94
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_17",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 503.91,
+        "gen_feat_2": 0.495887,
+        "gen_feat_3": 489.89
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_17",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 510.35,
+        "gen_feat_2": 0.504259,
+        "gen_feat_3": 510.15
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_18",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 507.07,
+        "gen_feat_2": 0.505397,
+        "gen_feat_3": 485.46
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_18",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 488.87,
+        "gen_feat_2": 0.493457,
+        "gen_feat_3": 497.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_18",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 514.38,
+        "gen_feat_2": 0.485126,
+        "gen_feat_3": 510.03
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_18",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 496.74,
+        "gen_feat_2": 0.49673,
+        "gen_feat_3": 493.58
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_18",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.05,
+        "gen_feat_2": 0.505046,
+        "gen_feat_3": 511.3
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_18",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 485.66,
+        "gen_feat_2": 0.507533,
+        "gen_feat_3": 513.48
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_19",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.21,
+        "gen_feat_2": 0.507786,
+        "gen_feat_3": 489.41
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_19",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 485.12,
+        "gen_feat_2": 0.486918,
+        "gen_feat_3": 491.45
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_19",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 503.66,
+        "gen_feat_2": 0.495024,
+        "gen_feat_3": 496.07
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_19",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 506.64,
+        "gen_feat_2": 0.506535,
+        "gen_feat_3": 488.63
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_19",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.96,
+        "gen_feat_2": 0.514598,
+        "gen_feat_3": 506.55
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_19",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 507.45,
+        "gen_feat_2": 0.492323,
+        "gen_feat_3": 510.85
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_20",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 493.26,
+        "gen_feat_2": 0.506567,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_20",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 502.98,
+        "gen_feat_2": 0.508161,
+        "gen_feat_3": 488.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_20",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 514.45,
+        "gen_feat_2": 0.502197,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_20",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.37,
+        "gen_feat_2": 0.49849,
+        "gen_feat_3": 512.98
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_20",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 501.14,
+        "gen_feat_2": 0.508529,
+        "gen_feat_3": 506.18
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_20",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.58,
+        "gen_feat_2": 0.494087,
+        "gen_feat_3": 491.56
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_21",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 507.88,
+        "gen_feat_2": 0.512349,
+        "gen_feat_3": 505.21
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_21",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 486.2,
+        "gen_feat_2": 0.513433,
+        "gen_feat_3": 508.91
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_21",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 494.32,
+        "gen_feat_2": 0.512134,
+        "gen_feat_3": 506.13
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
         "seq": {
           "fn": "SUM"
         }
@@ -938,19 +1785,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": false
     },
     {
@@ -962,16 +1809,6 @@
         "t_get_country_from_location"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/netedu2020-transport-agency_mono_one_hard.json b/experimentation/instances/netedu2020-transport-agency_mono_one_hard.json
index 47c6a0a..2a1044a 100644
--- a/experimentation/instances/netedu2020-transport-agency_mono_one_hard.json
+++ b/experimentation/instances/netedu2020-transport-agency_mono_one_hard.json
@@ -3,13 +3,22 @@
     "id": "netedu2020-transport-agency_mono_one_hard",
     "name": "Transport Agency case study (Netedu et al. 2020) [mono_one, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -260,10 +269,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +281,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +293,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +305,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +317,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +329,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +341,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +353,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +365,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +389,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +401,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +413,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +425,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +437,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +449,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +461,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +473,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +485,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +497,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +509,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +521,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +533,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +545,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +557,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +569,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +581,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +593,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +605,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +617,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +629,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +641,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +653,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +665,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +677,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +689,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +701,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +713,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +725,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +737,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +749,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +761,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +773,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +785,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +797,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +809,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +821,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,52 +843,892 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root_seq",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
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+      "features": {
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+        "gen_feat_1": 492.05,
+        "gen_feat_2": 0.505046,
+        "gen_feat_3": 511.3
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_18",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 485.66,
+        "gen_feat_2": 0.507533,
+        "gen_feat_3": 513.48
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_19",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.21,
+        "gen_feat_2": 0.507786,
+        "gen_feat_3": 489.41
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_19",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 485.12,
+        "gen_feat_2": 0.486918,
+        "gen_feat_3": 491.45
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_19",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 503.66,
+        "gen_feat_2": 0.495024,
+        "gen_feat_3": 496.07
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_19",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 506.64,
+        "gen_feat_2": 0.506535,
+        "gen_feat_3": 488.63
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_19",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.96,
+        "gen_feat_2": 0.514598,
+        "gen_feat_3": 506.55
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_19",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 507.45,
+        "gen_feat_2": 0.492323,
+        "gen_feat_3": 510.85
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_20",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 493.26,
+        "gen_feat_2": 0.506567,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_20",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 502.98,
+        "gen_feat_2": 0.508161,
+        "gen_feat_3": 488.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_20",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 514.45,
+        "gen_feat_2": 0.502197,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_20",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.37,
+        "gen_feat_2": 0.49849,
+        "gen_feat_3": 512.98
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_20",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 501.14,
+        "gen_feat_2": 0.508529,
+        "gen_feat_3": 506.18
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_20",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.58,
+        "gen_feat_2": 0.494087,
+        "gen_feat_3": 491.56
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_21",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 507.88,
+        "gen_feat_2": 0.512349,
+        "gen_feat_3": 505.21
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_21",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 486.2,
+        "gen_feat_2": 0.513433,
+        "gen_feat_3": 508.91
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_21",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 494.32,
+        "gen_feat_2": 0.512134,
+        "gen_feat_3": 506.13
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
+        "seq": {
           "fn": "SUM"
         }
       }
@@ -932,19 +1781,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": true
     },
     {
@@ -956,16 +1805,6 @@
         "t_get_country_from_location"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/netedu2020-transport-agency_mono_one_soft.json b/experimentation/instances/netedu2020-transport-agency_mono_one_soft.json
index bb1a81a..7c94feb 100644
--- a/experimentation/instances/netedu2020-transport-agency_mono_one_soft.json
+++ b/experimentation/instances/netedu2020-transport-agency_mono_one_soft.json
@@ -3,13 +3,20 @@
     "id": "netedu2020-transport-agency_mono_one_soft",
     "name": "Transport Agency case study (Netedu et al. 2020) [mono_one, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -260,10 +267,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +279,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +291,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +303,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +315,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +327,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +339,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +351,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +363,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +387,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +399,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +411,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +423,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +435,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +447,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +459,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +471,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +483,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +495,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +507,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +519,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +531,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +543,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +555,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +567,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +579,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +591,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +603,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +615,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +627,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +639,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +651,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +663,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +675,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +687,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +699,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +711,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +723,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +735,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +747,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +759,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +771,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +783,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +795,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +807,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +819,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,51 +841,891 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root_seq",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
-  "aggregation_policies": {
-    "cost": {
-      "neutral": 0,
-      "compose": {
+    },
+    {
+      "id": "t_get_closest_city_gen_10",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 486.77,
+        "gen_feat_2": 0.489326,
+        "gen_feat_3": 507.7
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_10",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.98,
+        "gen_feat_2": 0.500477,
+        "gen_feat_3": 509.78
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_10",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 485.17,
+        "gen_feat_2": 0.500767,
+        "gen_feat_3": 486.6
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_10",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 490.48,
+        "gen_feat_2": 0.505158,
+        "gen_feat_3": 505.25
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_10",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 491.16,
+        "gen_feat_2": 0.486032,
+        "gen_feat_3": 509.57
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_10",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 496.63,
+        "gen_feat_2": 0.509624,
+        "gen_feat_3": 496.87
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_11",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 512.73,
+        "gen_feat_2": 0.488821,
+        "gen_feat_3": 508.53
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_11",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 498.85,
+        "gen_feat_2": 0.499704,
+        "gen_feat_3": 508.28
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_11",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 508.95,
+        "gen_feat_2": 0.489493,
+        "gen_feat_3": 497.44
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_11",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 500.48,
+        "gen_feat_2": 0.504253,
+        "gen_feat_3": 497.42
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_11",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.13,
+        "gen_feat_2": 0.508674,
+        "gen_feat_3": 508.35
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_11",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 510.58,
+        "gen_feat_2": 0.494516,
+        "gen_feat_3": 490.77
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_12",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 488.77,
+        "gen_feat_2": 0.49366,
+        "gen_feat_3": 505.73
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_12",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 508.51,
+        "gen_feat_2": 0.501041,
+        "gen_feat_3": 514.6
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_12",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 508.13,
+        "gen_feat_2": 0.509104,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_12",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 493.59,
+        "gen_feat_2": 0.485843,
+        "gen_feat_3": 508.8
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_12",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 502.71,
+        "gen_feat_2": 0.504945,
+        "gen_feat_3": 513.46
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_12",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 497.06,
+        "gen_feat_2": 0.512886,
+        "gen_feat_3": 497.51
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_13",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.46,
+        "gen_feat_2": 0.500723,
+        "gen_feat_3": 501.8
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_13",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 501.79,
+        "gen_feat_2": 0.500158,
+        "gen_feat_3": 500.89
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_13",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.92,
+        "gen_feat_2": 0.497718,
+        "gen_feat_3": 506.35
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_13",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 511.51,
+        "gen_feat_2": 0.511025,
+        "gen_feat_3": 490.69
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_13",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 499.2,
+        "gen_feat_2": 0.508206,
+        "gen_feat_3": 501.07
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_13",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 498.51,
+        "gen_feat_2": 0.496857,
+        "gen_feat_3": 507.17
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_14",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 501.01,
+        "gen_feat_2": 0.492277,
+        "gen_feat_3": 497.24
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_14",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 509.5,
+        "gen_feat_2": 0.507879,
+        "gen_feat_3": 505.22
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_14",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 502.32,
+        "gen_feat_2": 0.494188,
+        "gen_feat_3": 511.73
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_14",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 510.92,
+        "gen_feat_2": 0.489375,
+        "gen_feat_3": 486.68
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_14",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 496.79,
+        "gen_feat_2": 0.498835,
+        "gen_feat_3": 509.02
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_14",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.21,
+        "gen_feat_2": 0.487213,
+        "gen_feat_3": 502.39
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_15",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 514.96,
+        "gen_feat_2": 0.489112,
+        "gen_feat_3": 506.15
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_15",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 496.48,
+        "gen_feat_2": 0.513266,
+        "gen_feat_3": 503.99
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_15",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 513.41,
+        "gen_feat_2": 0.503632,
+        "gen_feat_3": 504.93
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_15",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 498.59,
+        "gen_feat_2": 0.496426,
+        "gen_feat_3": 485.84
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_15",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 503.52,
+        "gen_feat_2": 0.497684,
+        "gen_feat_3": 496.1
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_15",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.32,
+        "gen_feat_2": 0.493395,
+        "gen_feat_3": 503.3
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_16",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.64,
+        "gen_feat_2": 0.509564,
+        "gen_feat_3": 510.81
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_16",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 502.39,
+        "gen_feat_2": 0.505374,
+        "gen_feat_3": 489.28
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_16",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 513.61,
+        "gen_feat_2": 0.505365,
+        "gen_feat_3": 513.96
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_16",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 513.1,
+        "gen_feat_2": 0.495957,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_16",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 502.45,
+        "gen_feat_2": 0.486044,
+        "gen_feat_3": 489.01
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_16",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.03,
+        "gen_feat_2": 0.485355,
+        "gen_feat_3": 499.2
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_17",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.31,
+        "gen_feat_2": 0.513504,
+        "gen_feat_3": 486.62
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_17",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 509.24,
+        "gen_feat_2": 0.495334,
+        "gen_feat_3": 489.1
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_17",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.86,
+        "gen_feat_2": 0.50226,
+        "gen_feat_3": 493.5
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_17",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 500.87,
+        "gen_feat_2": 0.486062,
+        "gen_feat_3": 508.94
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_17",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 503.91,
+        "gen_feat_2": 0.495887,
+        "gen_feat_3": 489.89
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_17",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 510.35,
+        "gen_feat_2": 0.504259,
+        "gen_feat_3": 510.15
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_18",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 507.07,
+        "gen_feat_2": 0.505397,
+        "gen_feat_3": 485.46
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_18",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 488.87,
+        "gen_feat_2": 0.493457,
+        "gen_feat_3": 497.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_18",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 514.38,
+        "gen_feat_2": 0.485126,
+        "gen_feat_3": 510.03
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_18",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 496.74,
+        "gen_feat_2": 0.49673,
+        "gen_feat_3": 493.58
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_18",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.05,
+        "gen_feat_2": 0.505046,
+        "gen_feat_3": 511.3
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_18",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 485.66,
+        "gen_feat_2": 0.507533,
+        "gen_feat_3": 513.48
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_19",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.21,
+        "gen_feat_2": 0.507786,
+        "gen_feat_3": 489.41
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_19",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 485.12,
+        "gen_feat_2": 0.486918,
+        "gen_feat_3": 491.45
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_19",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 503.66,
+        "gen_feat_2": 0.495024,
+        "gen_feat_3": 496.07
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_19",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 506.64,
+        "gen_feat_2": 0.506535,
+        "gen_feat_3": 488.63
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_19",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.96,
+        "gen_feat_2": 0.514598,
+        "gen_feat_3": 506.55
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_19",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 507.45,
+        "gen_feat_2": 0.492323,
+        "gen_feat_3": 510.85
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_20",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 493.26,
+        "gen_feat_2": 0.506567,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_20",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 502.98,
+        "gen_feat_2": 0.508161,
+        "gen_feat_3": 488.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_20",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 514.45,
+        "gen_feat_2": 0.502197,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_20",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.37,
+        "gen_feat_2": 0.49849,
+        "gen_feat_3": 512.98
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_20",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 501.14,
+        "gen_feat_2": 0.508529,
+        "gen_feat_3": 506.18
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_20",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.58,
+        "gen_feat_2": 0.494087,
+        "gen_feat_3": 491.56
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_21",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 507.88,
+        "gen_feat_2": 0.512349,
+        "gen_feat_3": 505.21
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_21",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 486.2,
+        "gen_feat_2": 0.513433,
+        "gen_feat_3": 508.91
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_21",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 494.32,
+        "gen_feat_2": 0.512134,
+        "gen_feat_3": 506.13
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
         "seq": {
           "fn": "SUM"
         }
@@ -932,19 +1779,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": false
     },
     {
@@ -956,16 +1803,6 @@
         "t_get_country_from_location"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/netedu2020-transport-agency_mono_utility_hard.json b/experimentation/instances/netedu2020-transport-agency_mono_utility_hard.json
index 587cc51..ad71382 100644
--- a/experimentation/instances/netedu2020-transport-agency_mono_utility_hard.json
+++ b/experimentation/instances/netedu2020-transport-agency_mono_utility_hard.json
@@ -3,13 +3,22 @@
     "id": "netedu2020-transport-agency_mono_utility_hard",
     "name": "Transport Agency case study (Netedu et al. 2020) [mono_utility, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -260,10 +269,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +281,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +293,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +305,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +317,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +329,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +341,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +353,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +365,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +389,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +401,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +413,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +425,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +437,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +449,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +461,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +473,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +485,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +497,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +509,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +521,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +533,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +545,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +557,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +569,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +581,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +593,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +605,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +617,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +629,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +641,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +653,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +665,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +677,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +689,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +701,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +713,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +725,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +737,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +749,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +761,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +773,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +785,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +797,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +809,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +821,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,52 +843,892 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
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-      "kind": "SEQ",
-      "children": [
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-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
-  "aggregation_policies": {
-    "cost": {
-      "neutral": 0,
-      "compose": {
-        "seq": {
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+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
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+        "gen_feat_3": 507.7
+      }
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+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+        "gen_feat_2": 0.500477,
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+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
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+        "gen_feat_2": 0.500767,
+        "gen_feat_3": 486.6
+      }
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+      "task_id": "t_get_transport_company",
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+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
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+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
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+      "task_id": "t_get_transport_company",
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+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
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+      "task_id": "t_get_local_subsidiary",
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+      "task_id": "t_get_transport_company",
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+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
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+      "id": "t_get_country_from_location_gen_17",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+      "id": "t_get_transport_company_gen_17",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
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+    {
+      "id": "t_get_vehicle_gen_17",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 503.91,
+        "gen_feat_2": 0.495887,
+        "gen_feat_3": 489.89
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_17",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 510.35,
+        "gen_feat_2": 0.504259,
+        "gen_feat_3": 510.15
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_18",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 507.07,
+        "gen_feat_2": 0.505397,
+        "gen_feat_3": 485.46
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_18",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 488.87,
+        "gen_feat_2": 0.493457,
+        "gen_feat_3": 497.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_18",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 514.38,
+        "gen_feat_2": 0.485126,
+        "gen_feat_3": 510.03
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_18",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 496.74,
+        "gen_feat_2": 0.49673,
+        "gen_feat_3": 493.58
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_18",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.05,
+        "gen_feat_2": 0.505046,
+        "gen_feat_3": 511.3
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_18",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 485.66,
+        "gen_feat_2": 0.507533,
+        "gen_feat_3": 513.48
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_19",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.21,
+        "gen_feat_2": 0.507786,
+        "gen_feat_3": 489.41
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_19",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 485.12,
+        "gen_feat_2": 0.486918,
+        "gen_feat_3": 491.45
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_19",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 503.66,
+        "gen_feat_2": 0.495024,
+        "gen_feat_3": 496.07
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_19",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 506.64,
+        "gen_feat_2": 0.506535,
+        "gen_feat_3": 488.63
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_19",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.96,
+        "gen_feat_2": 0.514598,
+        "gen_feat_3": 506.55
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_19",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 507.45,
+        "gen_feat_2": 0.492323,
+        "gen_feat_3": 510.85
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_20",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 493.26,
+        "gen_feat_2": 0.506567,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_20",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 502.98,
+        "gen_feat_2": 0.508161,
+        "gen_feat_3": 488.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_20",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 514.45,
+        "gen_feat_2": 0.502197,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_20",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.37,
+        "gen_feat_2": 0.49849,
+        "gen_feat_3": 512.98
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_20",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 501.14,
+        "gen_feat_2": 0.508529,
+        "gen_feat_3": 506.18
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_20",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.58,
+        "gen_feat_2": 0.494087,
+        "gen_feat_3": 491.56
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_21",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 507.88,
+        "gen_feat_2": 0.512349,
+        "gen_feat_3": 505.21
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_21",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 486.2,
+        "gen_feat_2": 0.513433,
+        "gen_feat_3": 508.91
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_21",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 494.32,
+        "gen_feat_2": 0.512134,
+        "gen_feat_3": 506.13
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
+        "seq": {
           "fn": "SUM"
         }
       }
@@ -938,19 +1787,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": true
     },
     {
@@ -962,16 +1811,6 @@
         "t_get_country_from_location"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/netedu2020-transport-agency_mono_utility_soft.json b/experimentation/instances/netedu2020-transport-agency_mono_utility_soft.json
index b5f3f94..6c76cc8 100644
--- a/experimentation/instances/netedu2020-transport-agency_mono_utility_soft.json
+++ b/experimentation/instances/netedu2020-transport-agency_mono_utility_soft.json
@@ -3,13 +3,20 @@
     "id": "netedu2020-transport-agency_mono_utility_soft",
     "name": "Transport Agency case study (Netedu et al. 2020) [mono_utility, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -260,10 +267,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +279,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +291,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +303,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +315,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +327,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +339,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +351,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +363,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +387,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +399,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +411,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +423,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +435,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +447,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +459,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +471,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +483,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +495,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +507,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +519,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +531,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +543,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +555,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +567,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +579,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +591,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +603,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +615,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +627,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +639,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +651,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +663,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +675,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +687,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +699,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +711,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +723,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +735,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +747,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +759,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +771,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +783,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +795,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +807,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +819,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,51 +841,891 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root_seq",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
-  "aggregation_policies": {
-    "cost": {
-      "neutral": 0,
-      "compose": {
+    },
+    {
+      "id": "t_get_closest_city_gen_10",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 486.77,
+        "gen_feat_2": 0.489326,
+        "gen_feat_3": 507.7
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_10",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.98,
+        "gen_feat_2": 0.500477,
+        "gen_feat_3": 509.78
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_10",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 485.17,
+        "gen_feat_2": 0.500767,
+        "gen_feat_3": 486.6
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_10",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 490.48,
+        "gen_feat_2": 0.505158,
+        "gen_feat_3": 505.25
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_10",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 491.16,
+        "gen_feat_2": 0.486032,
+        "gen_feat_3": 509.57
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_10",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 496.63,
+        "gen_feat_2": 0.509624,
+        "gen_feat_3": 496.87
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_11",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 512.73,
+        "gen_feat_2": 0.488821,
+        "gen_feat_3": 508.53
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_11",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 498.85,
+        "gen_feat_2": 0.499704,
+        "gen_feat_3": 508.28
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_11",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 508.95,
+        "gen_feat_2": 0.489493,
+        "gen_feat_3": 497.44
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_11",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 500.48,
+        "gen_feat_2": 0.504253,
+        "gen_feat_3": 497.42
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_11",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.13,
+        "gen_feat_2": 0.508674,
+        "gen_feat_3": 508.35
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_11",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 510.58,
+        "gen_feat_2": 0.494516,
+        "gen_feat_3": 490.77
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_12",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 488.77,
+        "gen_feat_2": 0.49366,
+        "gen_feat_3": 505.73
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_12",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 508.51,
+        "gen_feat_2": 0.501041,
+        "gen_feat_3": 514.6
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_12",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 508.13,
+        "gen_feat_2": 0.509104,
+        "gen_feat_3": 494.59
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_12",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 493.59,
+        "gen_feat_2": 0.485843,
+        "gen_feat_3": 508.8
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_12",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
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+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
         "seq": {
           "fn": "SUM"
         }
@@ -938,19 +1785,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": false
     },
     {
@@ -962,16 +1809,6 @@
         "t_get_country_from_location"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/netedu2020-transport-agency_multi_hard.json b/experimentation/instances/netedu2020-transport-agency_multi_hard.json
index 04aa3a5..6c51155 100644
--- a/experimentation/instances/netedu2020-transport-agency_multi_hard.json
+++ b/experimentation/instances/netedu2020-transport-agency_multi_hard.json
@@ -3,13 +3,22 @@
     "id": "netedu2020-transport-agency_multi_hard",
     "name": "Transport Agency case study (Netedu et al. 2020) [multi, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -260,10 +269,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +281,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +293,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +305,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +317,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +329,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +341,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +353,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +365,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +389,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +401,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +413,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +425,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +437,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +449,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +461,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +473,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +485,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +497,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +509,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +521,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +533,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +545,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +557,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +569,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +581,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +593,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +605,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +617,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +629,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +641,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +653,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +665,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +677,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +689,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +701,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +713,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +725,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +737,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +749,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +761,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +773,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +785,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +797,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +809,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +821,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,52 +843,892 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root_seq",
-      "kind": "SEQ",
-      "children": [
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-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
-  "aggregation_policies": {
-    "cost": {
-      "neutral": 0,
-      "compose": {
-        "seq": {
+    },
+    {
+      "id": "t_get_closest_city_gen_10",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
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+        "gen_feat_1": 486.77,
+        "gen_feat_2": 0.489326,
+        "gen_feat_3": 507.7
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_10",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.98,
+        "gen_feat_2": 0.500477,
+        "gen_feat_3": 509.78
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_10",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
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+        "gen_feat_1": 485.17,
+        "gen_feat_2": 0.500767,
+        "gen_feat_3": 486.6
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_10",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
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+        "gen_feat_1": 490.48,
+        "gen_feat_2": 0.505158,
+        "gen_feat_3": 505.25
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_10",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
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+        "gen_feat_1": 491.16,
+        "gen_feat_2": 0.486032,
+        "gen_feat_3": 509.57
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_10",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
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+        "gen_feat_2": 0.509624,
+        "gen_feat_3": 496.87
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_11",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
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+        "gen_feat_1": 512.73,
+        "gen_feat_2": 0.488821,
+        "gen_feat_3": 508.53
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_11",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+        "gen_feat_2": 0.499704,
+        "gen_feat_3": 508.28
+      }
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+      "provider_id": "p_gen_2",
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+        "gen_feat_3": 497.44
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+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
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+    },
+    {
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+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
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+        "gen_feat_3": 508.35
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+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
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+        "gen_feat_2": 0.494516,
+        "gen_feat_3": 490.77
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_12",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
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+        "gen_feat_2": 0.49366,
+        "gen_feat_3": 505.73
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+    {
+      "id": "t_get_country_from_location_gen_12",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+        "gen_feat_2": 0.501041,
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+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
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+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
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+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
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+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
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+      "id": "t_get_country_from_location_gen_13",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+      "task_id": "t_get_transport_company",
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+      "provider_id": "p_gen_4",
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+        "gen_feat_3": 501.07
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+      "task_id": "t_make_arrangements",
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+    },
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+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
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+      "id": "t_get_country_from_location_gen_14",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
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+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
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+    {
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+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
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+      "id": "t_make_arrangements_gen_14",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
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+        "gen_feat_1": 487.21,
+        "gen_feat_2": 0.487213,
+        "gen_feat_3": 502.39
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+    },
+    {
+      "id": "t_get_closest_city_gen_15",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
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+        "gen_feat_3": 506.15
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+    },
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+      "id": "t_get_country_from_location_gen_15",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
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+        "gen_feat_1": 513.41,
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+    },
+    {
+      "id": "t_get_transport_company_gen_15",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
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+    },
+    {
+      "id": "t_get_vehicle_gen_15",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
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+        "gen_feat_1": 503.52,
+        "gen_feat_2": 0.497684,
+        "gen_feat_3": 496.1
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+    },
+    {
+      "id": "t_make_arrangements_gen_15",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
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+        "gen_feat_3": 503.3
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+    },
+    {
+      "id": "t_get_closest_city_gen_16",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
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+    },
+    {
+      "id": "t_get_country_from_location_gen_16",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
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+        "gen_feat_1": 502.39,
+        "gen_feat_2": 0.505374,
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+    },
+    {
+      "id": "t_get_local_subsidiary_gen_16",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
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+        "gen_feat_1": 513.61,
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+    },
+    {
+      "id": "t_get_transport_company_gen_16",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 513.1,
+        "gen_feat_2": 0.495957,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_16",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 502.45,
+        "gen_feat_2": 0.486044,
+        "gen_feat_3": 489.01
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_16",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.03,
+        "gen_feat_2": 0.485355,
+        "gen_feat_3": 499.2
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_17",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.31,
+        "gen_feat_2": 0.513504,
+        "gen_feat_3": 486.62
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_17",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 509.24,
+        "gen_feat_2": 0.495334,
+        "gen_feat_3": 489.1
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_17",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.86,
+        "gen_feat_2": 0.50226,
+        "gen_feat_3": 493.5
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_17",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 500.87,
+        "gen_feat_2": 0.486062,
+        "gen_feat_3": 508.94
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_17",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 503.91,
+        "gen_feat_2": 0.495887,
+        "gen_feat_3": 489.89
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_17",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 510.35,
+        "gen_feat_2": 0.504259,
+        "gen_feat_3": 510.15
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_18",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 507.07,
+        "gen_feat_2": 0.505397,
+        "gen_feat_3": 485.46
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_18",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 488.87,
+        "gen_feat_2": 0.493457,
+        "gen_feat_3": 497.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_18",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 514.38,
+        "gen_feat_2": 0.485126,
+        "gen_feat_3": 510.03
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_18",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 496.74,
+        "gen_feat_2": 0.49673,
+        "gen_feat_3": 493.58
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_18",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 492.05,
+        "gen_feat_2": 0.505046,
+        "gen_feat_3": 511.3
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_18",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 485.66,
+        "gen_feat_2": 0.507533,
+        "gen_feat_3": 513.48
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_19",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 493.21,
+        "gen_feat_2": 0.507786,
+        "gen_feat_3": 489.41
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_19",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 485.12,
+        "gen_feat_2": 0.486918,
+        "gen_feat_3": 491.45
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_19",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 503.66,
+        "gen_feat_2": 0.495024,
+        "gen_feat_3": 496.07
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_19",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 506.64,
+        "gen_feat_2": 0.506535,
+        "gen_feat_3": 488.63
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_19",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 502.96,
+        "gen_feat_2": 0.514598,
+        "gen_feat_3": 506.55
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_19",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 507.45,
+        "gen_feat_2": 0.492323,
+        "gen_feat_3": 510.85
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_20",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 493.26,
+        "gen_feat_2": 0.506567,
+        "gen_feat_3": 499.02
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_20",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 502.98,
+        "gen_feat_2": 0.508161,
+        "gen_feat_3": 488.85
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_20",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 514.45,
+        "gen_feat_2": 0.502197,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_20",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.37,
+        "gen_feat_2": 0.49849,
+        "gen_feat_3": 512.98
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_20",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 501.14,
+        "gen_feat_2": 0.508529,
+        "gen_feat_3": 506.18
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_20",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.58,
+        "gen_feat_2": 0.494087,
+        "gen_feat_3": 491.56
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_21",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 507.88,
+        "gen_feat_2": 0.512349,
+        "gen_feat_3": 505.21
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_21",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 486.2,
+        "gen_feat_2": 0.513433,
+        "gen_feat_3": 508.91
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_21",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 494.32,
+        "gen_feat_2": 0.512134,
+        "gen_feat_3": 506.13
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
+        "seq": {
           "fn": "SUM"
         }
       }
@@ -936,19 +1785,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": true
     },
     {
@@ -960,16 +1809,6 @@
         "t_get_country_from_location"
       ],
       "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": true
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/netedu2020-transport-agency_multi_soft.json b/experimentation/instances/netedu2020-transport-agency_multi_soft.json
index 4166e24..7ce1b0e 100644
--- a/experimentation/instances/netedu2020-transport-agency_multi_soft.json
+++ b/experimentation/instances/netedu2020-transport-agency_multi_soft.json
@@ -3,13 +3,20 @@
     "id": "netedu2020-transport-agency_multi_soft",
     "name": "Transport Agency case study (Netedu et al. 2020) [multi, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:55Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "Models the running example from 'A Web Service Composition Method Based on OpenAPI Semantic Annotations' (Netedu et al., 2020), Sect. 5 Case Study: A Transport Agency. QoS values are not provided in the paper; a minimal 'cost' feature is added for schema compliance.",
     "paper": {
       "title": "A Web Service Composition Method Based on OpenAPI Semantic Annotations",
       "authors": "A. Netedu et al.",
       "year": 2020,
       "doi": "10.1007/978-3-030-34986-8_25"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -260,10 +267,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_2",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_2",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 487.4,
@@ -272,7 +279,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_3",
+      "id": "t_get_country_from_location_gen_2",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -284,10 +291,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_4",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_local_subsidiary_gen_2",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getCountryFromLocation (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 504.84,
@@ -296,10 +303,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_5",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_transport_company_gen_2",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getCountryFromLocation (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.58,
@@ -308,10 +315,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_6",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_vehicle_gen_2",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getCountryFromLocation (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 501.88,
@@ -320,10 +327,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_7",
-      "task_id": "t_get_country_from_location",
+      "id": "t_make_arrangements_gen_2",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getCountryFromLocation (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 507.26,
@@ -332,10 +339,10 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_8",
-      "task_id": "t_get_country_from_location",
+      "id": "t_get_closest_city_gen_3",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getCountryFromLocation (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 506.26,
@@ -344,7 +351,7 @@
       }
     },
     {
-      "id": "t_get_country_from_location_gen_9",
+      "id": "t_get_country_from_location_gen_3",
       "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
       "name": "getCountryFromLocation (Gen p_gen_1)",
@@ -356,10 +363,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_2",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_3",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 505.78,
@@ -380,10 +387,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_4",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_vehicle_gen_3",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getTransportCompany (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 503.48,
@@ -392,10 +399,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_5",
-      "task_id": "t_get_transport_company",
+      "id": "t_make_arrangements_gen_3",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getTransportCompany (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 493.49,
@@ -404,10 +411,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_6",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_closest_city_gen_4",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getTransportCompany (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 499.16,
@@ -416,10 +423,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_7",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_country_from_location_gen_4",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getTransportCompany (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 502.63,
@@ -428,10 +435,10 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_8",
-      "task_id": "t_get_transport_company",
+      "id": "t_get_local_subsidiary_gen_4",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getTransportCompany (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 491.72,
@@ -440,7 +447,7 @@
       }
     },
     {
-      "id": "t_get_transport_company_gen_9",
+      "id": "t_get_transport_company_gen_4",
       "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
       "name": "getTransportCompany (Gen p_gen_3)",
@@ -452,10 +459,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_2",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_4",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 493.13,
@@ -464,10 +471,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_3",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_4",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.98,
         "gen_feat_1": 513.16,
@@ -476,7 +483,7 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_4",
+      "id": "t_get_closest_city_gen_5",
       "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
       "name": "getClosestCity (Gen p_transport_agency)",
@@ -488,10 +495,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_5",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_country_from_location_gen_5",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getClosestCity (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 485.83,
@@ -500,10 +507,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_6",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_local_subsidiary_gen_5",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getClosestCity (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 510.35,
@@ -512,10 +519,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_7",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_transport_company_gen_5",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getClosestCity (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 506.43,
@@ -524,10 +531,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_8",
-      "task_id": "t_get_closest_city",
+      "id": "t_get_vehicle_gen_5",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getClosestCity (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 511.75,
@@ -536,10 +543,10 @@
       }
     },
     {
-      "id": "t_get_closest_city_gen_9",
-      "task_id": "t_get_closest_city",
+      "id": "t_make_arrangements_gen_5",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getClosestCity (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 489.25,
@@ -548,10 +555,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_2",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_6",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 513.51,
@@ -560,10 +567,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_3",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_6",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 493.1,
@@ -572,7 +579,7 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_4",
+      "id": "t_get_local_subsidiary_gen_6",
       "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
       "name": "getLocalSubsidiary (Gen p_gen_2)",
@@ -584,10 +591,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_5",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_transport_company_gen_6",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getLocalSubsidiary (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 502.56,
@@ -596,10 +603,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_6",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_vehicle_gen_6",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "getLocalSubsidiary (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.52,
@@ -608,10 +615,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_7",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_make_arrangements_gen_6",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getLocalSubsidiary (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 0.97,
         "gen_feat_1": 508.83,
@@ -620,10 +627,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_8",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_closest_city_gen_7",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getLocalSubsidiary (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 498.4,
@@ -632,10 +639,10 @@
       }
     },
     {
-      "id": "t_get_local_subsidiary_gen_9",
-      "task_id": "t_get_local_subsidiary",
+      "id": "t_get_country_from_location_gen_7",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getLocalSubsidiary (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.29,
@@ -644,10 +651,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_2",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_7",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 489.79,
@@ -656,10 +663,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_3",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_7",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 487.88,
@@ -668,7 +675,7 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_4",
+      "id": "t_get_vehicle_gen_7",
       "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
       "name": "getVehicle (Gen p_gen_4)",
@@ -680,10 +687,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_5",
-      "task_id": "t_get_vehicle",
+      "id": "t_make_arrangements_gen_7",
+      "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
-      "name": "getVehicle (Gen p_gen_5)",
+      "name": "makeArrangements (Gen p_gen_5)",
       "features": {
         "cost": 1.03,
         "gen_feat_1": 503.58,
@@ -692,10 +699,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_6",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_closest_city_gen_8",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "getVehicle (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 510.19,
@@ -704,10 +711,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_7",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_country_from_location_gen_8",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "getVehicle (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 503.59,
@@ -716,10 +723,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_8",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_local_subsidiary_gen_8",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "getVehicle (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 503.39,
@@ -728,10 +735,10 @@
       }
     },
     {
-      "id": "t_get_vehicle_gen_9",
-      "task_id": "t_get_vehicle",
+      "id": "t_get_transport_company_gen_8",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "getVehicle (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 512.8,
@@ -740,10 +747,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_2",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_8",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 492.14,
@@ -752,7 +759,7 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_3",
+      "id": "t_make_arrangements_gen_8",
       "task_id": "t_make_arrangements",
       "provider_id": "p_gen_5",
       "name": "makeArrangements (Gen p_gen_5)",
@@ -764,10 +771,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_4",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_closest_city_gen_9",
+      "task_id": "t_get_closest_city",
       "provider_id": "p_transport_agency",
-      "name": "makeArrangements (Gen p_transport_agency)",
+      "name": "getClosestCity (Gen p_transport_agency)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 514.81,
@@ -776,10 +783,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_5",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_country_from_location_gen_9",
+      "task_id": "t_get_country_from_location",
       "provider_id": "p_gen_1",
-      "name": "makeArrangements (Gen p_gen_1)",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
       "features": {
         "cost": 1.01,
         "gen_feat_1": 497.66,
@@ -788,10 +795,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_6",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_local_subsidiary_gen_9",
+      "task_id": "t_get_local_subsidiary",
       "provider_id": "p_gen_2",
-      "name": "makeArrangements (Gen p_gen_2)",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
       "features": {
         "cost": 1.0,
         "gen_feat_1": 513.24,
@@ -800,10 +807,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_7",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_transport_company_gen_9",
+      "task_id": "t_get_transport_company",
       "provider_id": "p_gen_3",
-      "name": "makeArrangements (Gen p_gen_3)",
+      "name": "getTransportCompany (Gen p_gen_3)",
       "features": {
         "cost": 1.02,
         "gen_feat_1": 500.78,
@@ -812,10 +819,10 @@
       }
     },
     {
-      "id": "t_make_arrangements_gen_8",
-      "task_id": "t_make_arrangements",
+      "id": "t_get_vehicle_gen_9",
+      "task_id": "t_get_vehicle",
       "provider_id": "p_gen_4",
-      "name": "makeArrangements (Gen p_gen_4)",
+      "name": "getVehicle (Gen p_gen_4)",
       "features": {
         "cost": 0.99,
         "gen_feat_1": 513.6,
@@ -834,51 +841,891 @@
         "gen_feat_2": 0.498065,
         "gen_feat_3": 500.63
       }
-    }
-  ],
-  "composition": {
-    "type": "STRUCTURED",
-    "root": {
-      "id": "n_root_seq",
-      "kind": "SEQ",
-      "children": [
-        {
-          "id": "n_country",
-          "kind": "TASK",
-          "task_id": "t_get_country_from_location"
-        },
-        {
-          "id": "n_company",
-          "kind": "TASK",
-          "task_id": "t_get_transport_company"
-        },
-        {
-          "id": "n_city",
-          "kind": "TASK",
-          "task_id": "t_get_closest_city"
-        },
-        {
-          "id": "n_subsidiary",
-          "kind": "TASK",
-          "task_id": "t_get_local_subsidiary"
-        },
-        {
-          "id": "n_vehicle",
-          "kind": "TASK",
-          "task_id": "t_get_vehicle"
-        },
-        {
-          "id": "n_arrangements",
-          "kind": "TASK",
-          "task_id": "t_make_arrangements"
-        }
-      ]
-    }
-  },
-  "aggregation_policies": {
-    "cost": {
-      "neutral": 0,
-      "compose": {
+    },
+    {
+      "id": "t_get_closest_city_gen_10",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 486.77,
+        "gen_feat_2": 0.489326,
+        "gen_feat_3": 507.7
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_10",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 0.99,
+        "gen_feat_1": 513.98,
+        "gen_feat_2": 0.500477,
+        "gen_feat_3": 509.78
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_10",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 485.17,
+        "gen_feat_2": 0.500767,
+        "gen_feat_3": 486.6
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_10",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 490.48,
+        "gen_feat_2": 0.505158,
+        "gen_feat_3": 505.25
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_10",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 491.16,
+        "gen_feat_2": 0.486032,
+        "gen_feat_3": 509.57
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_10",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.02,
+        "gen_feat_1": 496.63,
+        "gen_feat_2": 0.509624,
+        "gen_feat_3": 496.87
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_11",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 512.73,
+        "gen_feat_2": 0.488821,
+        "gen_feat_3": 508.53
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_11",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 498.85,
+        "gen_feat_2": 0.499704,
+        "gen_feat_3": 508.28
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_11",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 508.95,
+        "gen_feat_2": 0.489493,
+        "gen_feat_3": 497.44
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_11",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 500.48,
+        "gen_feat_2": 0.504253,
+        "gen_feat_3": 497.42
+      }
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+        "gen_feat_1": 514.45,
+        "gen_feat_2": 0.502197,
+        "gen_feat_3": 485.43
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_20",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 0.97,
+        "gen_feat_1": 499.37,
+        "gen_feat_2": 0.49849,
+        "gen_feat_3": 512.98
+      }
+    },
+    {
+      "id": "t_get_vehicle_gen_20",
+      "task_id": "t_get_vehicle",
+      "provider_id": "p_gen_4",
+      "name": "getVehicle (Gen p_gen_4)",
+      "features": {
+        "cost": 0.98,
+        "gen_feat_1": 501.14,
+        "gen_feat_2": 0.508529,
+        "gen_feat_3": 506.18
+      }
+    },
+    {
+      "id": "t_make_arrangements_gen_20",
+      "task_id": "t_make_arrangements",
+      "provider_id": "p_gen_5",
+      "name": "makeArrangements (Gen p_gen_5)",
+      "features": {
+        "cost": 1.01,
+        "gen_feat_1": 487.58,
+        "gen_feat_2": 0.494087,
+        "gen_feat_3": 491.56
+      }
+    },
+    {
+      "id": "t_get_closest_city_gen_21",
+      "task_id": "t_get_closest_city",
+      "provider_id": "p_transport_agency",
+      "name": "getClosestCity (Gen p_transport_agency)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 507.88,
+        "gen_feat_2": 0.512349,
+        "gen_feat_3": 505.21
+      }
+    },
+    {
+      "id": "t_get_country_from_location_gen_21",
+      "task_id": "t_get_country_from_location",
+      "provider_id": "p_gen_1",
+      "name": "getCountryFromLocation (Gen p_gen_1)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 486.2,
+        "gen_feat_2": 0.513433,
+        "gen_feat_3": 508.91
+      }
+    },
+    {
+      "id": "t_get_local_subsidiary_gen_21",
+      "task_id": "t_get_local_subsidiary",
+      "provider_id": "p_gen_2",
+      "name": "getLocalSubsidiary (Gen p_gen_2)",
+      "features": {
+        "cost": 1.0,
+        "gen_feat_1": 494.32,
+        "gen_feat_2": 0.512134,
+        "gen_feat_3": 506.13
+      }
+    },
+    {
+      "id": "t_get_transport_company_gen_21",
+      "task_id": "t_get_transport_company",
+      "provider_id": "p_gen_3",
+      "name": "getTransportCompany (Gen p_gen_3)",
+      "features": {
+        "cost": 1.03,
+        "gen_feat_1": 498.61,
+        "gen_feat_2": 0.500746,
+        "gen_feat_3": 498.44
+      }
+    }
+  ],
+  "composition": {
+    "type": "STRUCTURED",
+    "root": {
+      "id": "n_root_seq",
+      "kind": "SEQ",
+      "children": [
+        {
+          "id": "n_country",
+          "kind": "TASK",
+          "task_id": "t_get_country_from_location"
+        },
+        {
+          "id": "n_company",
+          "kind": "TASK",
+          "task_id": "t_get_transport_company"
+        },
+        {
+          "id": "n_city",
+          "kind": "TASK",
+          "task_id": "t_get_closest_city"
+        },
+        {
+          "id": "n_subsidiary",
+          "kind": "TASK",
+          "task_id": "t_get_local_subsidiary"
+        },
+        {
+          "id": "n_vehicle",
+          "kind": "TASK",
+          "task_id": "t_get_vehicle"
+        },
+        {
+          "id": "n_arrangements",
+          "kind": "TASK",
+          "task_id": "t_make_arrangements"
+        }
+      ]
+    }
+  },
+  "aggregation_policies": {
+    "cost": {
+      "neutral": 0,
+      "compose": {
         "seq": {
           "fn": "SUM"
         }
@@ -936,19 +1783,19 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 6.01,
+      "value": 11.04,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_get_closest_city_gen_feat_1_1",
+      "id": "gen_c_local_t_make_arrangements_gen_feat_1_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_get_closest_city"
+        "t_make_arrangements"
       ],
       "attribute_id": "gen_feat_1",
       "op": "<=",
-      "value": 497.52,
+      "value": 494.65,
       "hard": false
     },
     {
@@ -960,16 +1807,6 @@
         "t_get_country_from_location"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_get_closest_city",
-        "t_make_arrangements"
-      ],
-      "hard": false
     }
   ]
 }
\ No newline at end of file
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_many_hard.json b/experimentation/instances/pautasso2009-restful-ecommerce_many_hard.json
index ffd1c1f..7969ae6 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_many_hard.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_many_hard.json
@@ -3,13 +3,22 @@
     "id": "pautasso2009-restful-ecommerce_many_hard",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [many, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:04Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -730,6 +739,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -998,7 +1217,8 @@
         "t_ship_order",
         "t_update_shipment",
         "t_cancel_order"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_catalog_mono_provider",
@@ -1007,7 +1227,8 @@
       "tasks": [
         "t_request_quote",
         "t_get_quote"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_payment_mono_provider",
@@ -1016,7 +1237,8 @@
       "tasks": [
         "t_charge_payment",
         "t_refund_payment"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "gen_c_global_latency_ms_1",
@@ -1024,39 +1246,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 2060.44,
+      "value": 1890.97,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_same_1",
-      "kind": "DEPENDENCY",
-      "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_cancel_order"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_charge_payment"
-      ],
+      "value": 497.6,
       "hard": true
     }
   ],
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_many_soft.json b/experimentation/instances/pautasso2009-restful-ecommerce_many_soft.json
index 8a7ea4e..e492b23 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_many_soft.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_many_soft.json
@@ -3,13 +3,20 @@
     "id": "pautasso2009-restful-ecommerce_many_soft",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [many, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -730,6 +737,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -1027,19 +1244,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 2060.44,
+      "value": 1890.97,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
+      "value": 497.6,
       "hard": false
     },
     {
@@ -1051,16 +1268,6 @@
         "t_cancel_order"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_charge_payment"
-      ],
-      "hard": false
     }
   ],
   "objective": {
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_hard.json b/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_hard.json
index c367867..4cd19a7 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_hard.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_hard.json
@@ -3,13 +3,22 @@
     "id": "pautasso2009-restful-ecommerce_mono_one_hard",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [mono_one, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:57Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -730,6 +739,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -998,7 +1217,8 @@
         "t_ship_order",
         "t_update_shipment",
         "t_cancel_order"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_catalog_mono_provider",
@@ -1007,7 +1227,8 @@
       "tasks": [
         "t_request_quote",
         "t_get_quote"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_payment_mono_provider",
@@ -1016,7 +1237,8 @@
       "tasks": [
         "t_charge_payment",
         "t_refund_payment"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "gen_c_global_latency_ms_1",
@@ -1024,39 +1246,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1866.14,
+      "value": 1890.97,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_same_1",
-      "kind": "DEPENDENCY",
-      "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_cancel_order"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_refund_payment"
-      ],
+      "value": 497.6,
       "hard": true
     }
   ],
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_soft.json b/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_soft.json
index 455763d..b2be662 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_soft.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_mono_one_soft.json
@@ -3,13 +3,20 @@
     "id": "pautasso2009-restful-ecommerce_mono_one_soft",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [mono_one, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:34:59Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -730,6 +737,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -1027,19 +1244,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1866.14,
+      "value": 1890.97,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
+      "value": 497.6,
       "hard": false
     },
     {
@@ -1051,16 +1268,6 @@
         "t_cancel_order"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_refund_payment"
-      ],
-      "hard": false
     }
   ],
   "objective": {
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_hard.json b/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_hard.json
index fc27c90..98e7bf8 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_hard.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_hard.json
@@ -3,13 +3,22 @@
     "id": "pautasso2009-restful-ecommerce_mono_utility_hard",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [mono_utility, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:00Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -730,6 +739,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -998,7 +1217,8 @@
         "t_ship_order",
         "t_update_shipment",
         "t_cancel_order"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_catalog_mono_provider",
@@ -1007,7 +1227,8 @@
       "tasks": [
         "t_request_quote",
         "t_get_quote"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_payment_mono_provider",
@@ -1016,7 +1237,8 @@
       "tasks": [
         "t_charge_payment",
         "t_refund_payment"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "gen_c_global_latency_ms_1",
@@ -1024,39 +1246,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 2259.82,
+      "value": 1890.97,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_same_1",
-      "kind": "DEPENDENCY",
-      "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_cancel_order"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_charge_payment"
-      ],
+      "value": 497.6,
       "hard": true
     }
   ],
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_soft.json b/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_soft.json
index de2437c..d97dd06 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_soft.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_mono_utility_soft.json
@@ -3,13 +3,20 @@
     "id": "pautasso2009-restful-ecommerce_mono_utility_soft",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [mono_utility, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:01Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -730,6 +737,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -1027,19 +1244,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 2259.82,
+      "value": 1890.97,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
+      "value": 497.6,
       "hard": false
     },
     {
@@ -1051,16 +1268,6 @@
         "t_cancel_order"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_charge_payment"
-      ],
-      "hard": false
     }
   ],
   "objective": {
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_multi_hard.json b/experimentation/instances/pautasso2009-restful-ecommerce_multi_hard.json
index 4239d5b..db68a1c 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_multi_hard.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_multi_hard.json
@@ -3,13 +3,22 @@
     "id": "pautasso2009-restful-ecommerce_multi_hard",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [multi, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:02Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -730,6 +739,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -998,7 +1217,8 @@
         "t_ship_order",
         "t_update_shipment",
         "t_cancel_order"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_catalog_mono_provider",
@@ -1007,7 +1227,8 @@
       "tasks": [
         "t_request_quote",
         "t_get_quote"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "bind_payment_mono_provider",
@@ -1016,7 +1237,8 @@
       "tasks": [
         "t_charge_payment",
         "t_refund_payment"
-      ]
+      ],
+      "hard": true
     },
     {
       "id": "gen_c_global_latency_ms_1",
@@ -1024,39 +1246,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1866.14,
+      "value": 1890.97,
       "hard": true
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_same_1",
-      "kind": "DEPENDENCY",
-      "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_cancel_order"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_refund_payment"
-      ],
+      "value": 497.6,
       "hard": true
     }
   ],
diff --git a/experimentation/instances/pautasso2009-restful-ecommerce_multi_soft.json b/experimentation/instances/pautasso2009-restful-ecommerce_multi_soft.json
index aec203e..3be6b20 100644
--- a/experimentation/instances/pautasso2009-restful-ecommerce_multi_soft.json
+++ b/experimentation/instances/pautasso2009-restful-ecommerce_multi_soft.json
@@ -3,13 +3,20 @@
     "id": "pautasso2009-restful-ecommerce_multi_soft",
     "name": "RESTful e-Commerce scenario (Pautasso 2009) [multi, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:03Z",
+    "created_at": "2026-02-25T15:19:08Z",
     "description": "QoS-aware composition instance derived from the running e-Commerce example in Pautasso (2009) 'BPEL for REST'. QoS numbers are illustrative (the paper specifies the workflow/API but not QoS measurements).",
     "paper": {
       "title": "RESTful Web service composition with BPEL for REST",
       "authors": "C. Pautasso",
       "year": 2009,
       "doi": "10.1016/j.datak.2009.02.016"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -730,6 +737,216 @@
         "gen_feat_2": 0.503178,
         "gen_feat_3": 498.93
       }
+    },
+    {
+      "id": "t_add_item_gen_2",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_1",
+      "name": "ShopA POST /order/item (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 138.1,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.27,
+        "gen_feat_2": 0.495201,
+        "gen_feat_3": 492.8
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_2",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_2",
+      "name": "ShopA DELETE /order (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 82.5,
+        "cost_usd": 0.0,
+        "availability": 0.974939,
+        "gen_feat_1": 513.73,
+        "gen_feat_2": 0.504326,
+        "gen_feat_3": 509.28
+      }
+    },
+    {
+      "id": "t_charge_payment_gen_2",
+      "task_id": "t_charge_payment",
+      "provider_id": "p_gen_3",
+      "name": "PaymentA POST /payment (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 319.82,
+        "cost_usd": 0.02,
+        "availability": 0.970835,
+        "gen_feat_1": 487.61,
+        "gen_feat_2": 0.48896,
+        "gen_feat_3": 507.35
+      }
+    },
+    {
+      "id": "t_checkout_gen_2",
+      "task_id": "t_checkout",
+      "provider_id": "p_gen_4",
+      "name": "ShopA POST /order/payment (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 153.71,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 494.43,
+        "gen_feat_2": 0.499538,
+        "gen_feat_3": 505.95
+      }
+    },
+    {
+      "id": "t_create_order_gen_2",
+      "task_id": "t_create_order",
+      "provider_id": "p_gen_5",
+      "name": "ShopA POST /order (Gen p_gen_5)",
+      "features": {
+        "latency_ms": 107.32,
+        "cost_usd": 0.0,
+        "availability": 0.976762,
+        "gen_feat_1": 491.15,
+        "gen_feat_2": 0.513884,
+        "gen_feat_3": 498.93
+      }
+    },
+    {
+      "id": "t_get_amount_gen_2",
+      "task_id": "t_get_amount",
+      "provider_id": "p_shop_a",
+      "name": "ShopA GET /order/amount (Gen p_shop_a)",
+      "features": {
+        "latency_ms": 53.85,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 490.42,
+        "gen_feat_2": 0.511021,
+        "gen_feat_3": 503.37
+      }
+    },
+    {
+      "id": "t_get_quote_gen_2",
+      "task_id": "t_get_quote",
+      "provider_id": "p_shop_b",
+      "name": "CatalogA GET /quote (Gen p_shop_b)",
+      "features": {
+        "latency_ms": 87.45,
+        "cost_usd": 0.0,
+        "availability": 0.985079,
+        "gen_feat_1": 502.14,
+        "gen_feat_2": 0.496493,
+        "gen_feat_3": 490.86
+      }
+    },
+    {
+      "id": "t_list_confirmed_gen_2",
+      "task_id": "t_list_confirmed",
+      "provider_id": "p_catalog_a",
+      "name": "ShopA GET /order/confirmed (Gen p_catalog_a)",
+      "features": {
+        "latency_ms": 68.22,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 486.32,
+        "gen_feat_2": 0.493805,
+        "gen_feat_3": 501.89
+      }
+    },
+    {
+      "id": "t_refund_payment_gen_2",
+      "task_id": "t_refund_payment",
+      "provider_id": "p_catalog_b",
+      "name": "PaymentA DELETE /payment (Gen p_catalog_b)",
+      "features": {
+        "latency_ms": 236.81,
+        "cost_usd": 0.02,
+        "availability": 0.97577,
+        "gen_feat_1": 487.78,
+        "gen_feat_2": 0.513947,
+        "gen_feat_3": 501.92
+      }
+    },
+    {
+      "id": "t_remove_item_gen_2",
+      "task_id": "t_remove_item",
+      "provider_id": "p_payment_a",
+      "name": "ShopA DELETE /order/item (Gen p_payment_a)",
+      "features": {
+        "latency_ms": 87.21,
+        "cost_usd": 0.0,
+        "availability": 0.985215,
+        "gen_feat_1": 485.98,
+        "gen_feat_2": 0.508692,
+        "gen_feat_3": 505.08
+      }
+    },
+    {
+      "id": "t_request_quote_gen_2",
+      "task_id": "t_request_quote",
+      "provider_id": "p_payment_b",
+      "name": "CatalogA POST /product/quote (Gen p_payment_b)",
+      "features": {
+        "latency_ms": 118.36,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 489.81,
+        "gen_feat_2": 0.485147,
+        "gen_feat_3": 486.3
+      }
+    },
+    {
+      "id": "t_ship_order_gen_2",
+      "task_id": "t_ship_order",
+      "provider_id": "p_gen_1",
+      "name": "ShopA fulfillment (Gen p_gen_1)",
+      "features": {
+        "latency_ms": 485.43,
+        "cost_usd": 0.05,
+        "availability": 0.9931,
+        "gen_feat_1": 505.71,
+        "gen_feat_2": 0.504465,
+        "gen_feat_3": 512.15
+      }
+    },
+    {
+      "id": "t_update_shipment_gen_2",
+      "task_id": "t_update_shipment",
+      "provider_id": "p_gen_2",
+      "name": "ShopA PUT /order/shipment (Gen p_gen_2)",
+      "features": {
+        "latency_ms": 92.19,
+        "cost_usd": 0.0,
+        "availability": 1.0,
+        "gen_feat_1": 502.48,
+        "gen_feat_2": 0.508902,
+        "gen_feat_3": 494.03
+      }
+    },
+    {
+      "id": "t_add_item_gen_3",
+      "task_id": "t_add_item",
+      "provider_id": "p_gen_3",
+      "name": "ShopA POST /order/item (Gen p_gen_3)",
+      "features": {
+        "latency_ms": 134.49,
+        "cost_usd": 0.0,
+        "availability": 0.986405,
+        "gen_feat_1": 493.7,
+        "gen_feat_2": 0.503951,
+        "gen_feat_3": 510.3
+      }
+    },
+    {
+      "id": "t_cancel_order_gen_3",
+      "task_id": "t_cancel_order",
+      "provider_id": "p_gen_4",
+      "name": "ShopA DELETE /order (Gen p_gen_4)",
+      "features": {
+        "latency_ms": 87.12,
+        "cost_usd": 0.0,
+        "availability": 0.986711,
+        "gen_feat_1": 487.89,
+        "gen_feat_2": 0.507856,
+        "gen_feat_3": 511.13
+      }
     }
   ],
   "composition": {
@@ -1027,19 +1244,19 @@
       "scope": "GLOBAL",
       "attribute_id": "latency_ms",
       "op": "<=",
-      "value": 1866.14,
+      "value": 1890.97,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_add_item_cost_usd_1",
+      "id": "gen_c_local_t_get_quote_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_add_item"
+        "t_get_quote"
       ],
-      "attribute_id": "cost_usd",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 0.0,
+      "value": 497.6,
       "hard": false
     },
     {
@@ -1051,16 +1268,6 @@
         "t_cancel_order"
       ],
       "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
-      "tasks": [
-        "t_add_item",
-        "t_refund_payment"
-      ],
-      "hard": false
     }
   ],
   "objective": {
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_many_hard.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_many_hard.json
index cf07a6b..15bc9dc 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_many_hard.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_many_hard.json
@@ -3,13 +3,22 @@
     "id": "zhang2014-entertainment-planner-running-example_many_hard",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [many, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -236,35 +245,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +287,35 @@
       }
     },
     {
-      "id": "t_dining_gen_5",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 20.22,
-        "time": 60.39,
-        "distance": 1564.48,
+        "cost": 10.11,
+        "time": 135.87,
+        "distance": 1662.26,
         "gen_feat_1": 491.41,
         "gen_feat_2": 0.490673,
         "gen_feat_3": 490.61
       }
     },
     {
-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.38,
-        "time": 58.67,
-        "distance": 1626.15,
+        "time": 44.01,
+        "distance": 1219.61,
         "gen_feat_1": 488.5,
         "gen_feat_2": 0.49348,
         "gen_feat_3": 495.75
       }
     },
     {
-      "id": "t_dining_gen_7",
+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +329,35 @@
       }
     },
     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 19.43,
-        "time": 59.64,
-        "distance": 1598.13,
+        "cost": 9.72,
+        "time": 134.2,
+        "distance": 1698.01,
         "gen_feat_1": 503.89,
         "gen_feat_2": 0.506945,
         "gen_feat_3": 508.17
       }
     },
     {
-      "id": "t_dining_gen_9",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 19.64,
-        "time": 60.54,
-        "distance": 1604.33,
+        "time": 45.4,
+        "distance": 1203.25,
         "gen_feat_1": 486.84,
         "gen_feat_2": 0.506628,
         "gen_feat_3": 501.62
       }
     },
     {
-      "id": "t_dining_gen_10",
+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +371,35 @@
       }
     },
     {
-      "id": "t_dining_gen_11",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.68,
-        "time": 59.16,
-        "distance": 1620.42,
+        "cost": 9.84,
+        "time": 133.12,
+        "distance": 1721.7,
         "gen_feat_1": 507.98,
         "gen_feat_2": 0.488942,
         "gen_feat_3": 489.19
       }
     },
     {
-      "id": "t_dining_gen_12",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.74,
-        "time": 59.04,
-        "distance": 1602.16,
+        "time": 44.28,
+        "distance": 1201.62,
         "gen_feat_1": 504.58,
         "gen_feat_2": 0.489389,
         "gen_feat_3": 507.41
       }
     },
     {
-      "id": "t_dining_gen_13",
+      "id": "t_dining_gen_5",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +413,35 @@
       }
     },
     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.72,
-        "time": 58.91,
-        "distance": 1626.35,
+        "cost": 9.86,
+        "time": 132.55,
+        "distance": 1728.0,
         "gen_feat_1": 509.41,
         "gen_feat_2": 0.490291,
         "gen_feat_3": 514.74
       }
     },
     {
-      "id": "t_dining_gen_15",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_6",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.59,
-        "time": 60.67,
-        "distance": 1631.73,
+        "time": 45.5,
+        "distance": 1223.8,
         "gen_feat_1": 493.43,
         "gen_feat_2": 0.498961,
         "gen_feat_3": 492.15
       }
     },
     {
-      "id": "t_dining_gen_16",
+      "id": "t_dining_gen_6",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +455,35 @@
       }
     },
     {
-      "id": "t_dining_gen_17",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_7",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 20.33,
-        "time": 59.99,
-        "distance": 1602.82,
+        "cost": 10.17,
+        "time": 134.98,
+        "distance": 1702.99,
         "gen_feat_1": 513.49,
         "gen_feat_2": 0.510425,
         "gen_feat_3": 506.46
       }
     },
     {
-      "id": "t_dining_gen_18",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_7",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 20.02,
-        "time": 60.13,
-        "distance": 1639.2,
+        "time": 45.1,
+        "distance": 1229.4,
         "gen_feat_1": 498.4,
         "gen_feat_2": 0.499582,
         "gen_feat_3": 504.62
       }
     },
     {
-      "id": "t_dining_gen_19",
+      "id": "t_dining_gen_7",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +497,35 @@
       }
     },
     {
-      "id": "t_dining_gen_20",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_8",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 20.33,
-        "time": 59.96,
-        "distance": 1568.96,
+        "cost": 10.17,
+        "time": 134.92,
+        "distance": 1667.02,
         "gen_feat_1": 488.36,
         "gen_feat_2": 0.514752,
         "gen_feat_3": 513.42
       }
     },
     {
-      "id": "t_dining_gen_21",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_8",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.8,
-        "time": 58.42,
-        "distance": 1555.46,
+        "time": 43.81,
+        "distance": 1166.59,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.486429,
         "gen_feat_3": 488.41
       }
     },
     {
-      "id": "t_dining_gen_22",
+      "id": "t_dining_gen_8",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +539,35 @@
       }
     },
     {
-      "id": "t_dining_gen_23",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_9",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.42,
-        "time": 61.78,
-        "distance": 1622.72,
+        "cost": 9.71,
+        "time": 139.0,
+        "distance": 1724.14,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.489949,
         "gen_feat_3": 487.73
       }
     },
     {
-      "id": "t_dining_gen_24",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_9",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.71,
-        "time": 59.51,
-        "distance": 1580.85,
+        "time": 44.63,
+        "distance": 1185.64,
         "gen_feat_1": 501.15,
         "gen_feat_2": 0.50297,
         "gen_feat_3": 505.29
       }
     },
     {
-      "id": "t_dining_gen_25",
+      "id": "t_dining_gen_9",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +581,35 @@
       }
     },
     {
-      "id": "t_dining_gen_26",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_10",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 20.55,
-        "time": 58.26,
-        "distance": 1560.85,
+        "cost": 10.27,
+        "time": 131.09,
+        "distance": 1658.41,
         "gen_feat_1": 492.17,
         "gen_feat_2": 0.492399,
         "gen_feat_3": 511.94
       }
     },
     {
-      "id": "t_dining_gen_27",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_10",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 20.48,
-        "time": 58.34,
-        "distance": 1631.2,
+        "time": 43.76,
+        "distance": 1223.4,
         "gen_feat_1": 498.39,
         "gen_feat_2": 0.490821,
         "gen_feat_3": 491.03
       }
     },
     {
-      "id": "t_dining_gen_28",
+      "id": "t_dining_gen_10",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +623,35 @@
       }
     },
     {
-      "id": "t_dining_gen_29",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_11",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.76,
-        "time": 60.3,
-        "distance": 1569.61,
+        "cost": 9.88,
+        "time": 135.68,
+        "distance": 1667.71,
         "gen_feat_1": 490.22,
         "gen_feat_2": 0.496831,
         "gen_feat_3": 496.53
       }
     },
     {
-      "id": "t_dining_gen_30",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_11",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.71,
-        "time": 60.3,
-        "distance": 1623.3,
+        "time": 45.22,
+        "distance": 1217.47,
         "gen_feat_1": 500.21,
         "gen_feat_2": 0.496569,
         "gen_feat_3": 498.99
       }
     },
     {
-      "id": "t_dining_gen_31",
+      "id": "t_dining_gen_11",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +665,35 @@
       }
     },
     {
-      "id": "t_dining_gen_32",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_12",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.8,
-        "time": 59.8,
-        "distance": 1560.3,
+        "cost": 9.9,
+        "time": 134.55,
+        "distance": 1657.82,
         "gen_feat_1": 512.24,
         "gen_feat_2": 0.486102,
         "gen_feat_3": 508.8
       }
     },
     {
-      "id": "t_dining_gen_33",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_12",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.49,
-        "time": 61.12,
-        "distance": 1612.82,
+        "time": 45.84,
+        "distance": 1209.62,
         "gen_feat_1": 506.05,
         "gen_feat_2": 0.504153,
         "gen_feat_3": 510.28
       }
     },
     {
-      "id": "t_dining_gen_34",
+      "id": "t_dining_gen_12",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -698,35 +707,35 @@
       }
     },
     {
-      "id": "t_dining_gen_35",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_13",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 20.14,
-        "time": 60.57,
-        "distance": 1626.08,
+        "cost": 10.07,
+        "time": 136.29,
+        "distance": 1727.71,
         "gen_feat_1": 500.78,
         "gen_feat_2": 0.513739,
         "gen_feat_3": 510.69
       }
     },
     {
-      "id": "t_dining_gen_36",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_13",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 20.57,
-        "time": 58.38,
-        "distance": 1610.88,
+        "time": 43.79,
+        "distance": 1208.16,
         "gen_feat_1": 495.23,
         "gen_feat_2": 0.509726,
         "gen_feat_3": 512.08
       }
     },
     {
-      "id": "t_dining_gen_37",
+      "id": "t_dining_gen_13",
       "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -740,35 +749,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +791,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -824,35 +833,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +875,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +917,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -950,35 +959,35 @@
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@@ -992,35 +1001,35 @@
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@@ -1034,35 +1043,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1076,35 +1085,35 @@
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-      "task_id": "t_dining",
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@@ -1118,35 +1127,35 @@
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-      "task_id": "t_dining",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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@@ -1160,35 +1169,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1202,35 +1211,35 @@
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-      "task_id": "t_dining",
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@@ -1244,35 +1253,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1286,35 +1295,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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@@ -1328,35 +1337,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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@@ -1370,35 +1379,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1412,35 +1421,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1454,35 +1463,35 @@
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-      "id": "t_dining_gen_89",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_31",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1496,35 +1505,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1547,35 @@
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-      "id": "t_dining_gen_95",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_33",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1589,21 @@
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-      "id": "t_dining_gen_98",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1617,35 @@
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     {
-      "id": "t_shopping_gen_3",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_35",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1659,35 @@
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-      "id": "t_shopping_gen_6",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1701,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1743,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1785,35 @@
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-      "id": "t_shopping_gen_15",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1827,35 @@
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-      "id": "t_shopping_gen_18",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_40",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.76,
-        "distance": 1178.65,
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-      "id": "t_shopping_gen_20",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1869,35 @@
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     {
-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.06,
-        "distance": 1185.1,
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-      "id": "t_shopping_gen_22",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_41",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.23,
-        "distance": 1172.35,
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+        "time": 135.68,
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-      "id": "t_shopping_gen_23",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1911,35 @@
       }
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     {
-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 45.29,
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-      "id": "t_shopping_gen_25",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.68,
-        "distance": 1197.16,
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1953,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_27",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.28,
-        "distance": 1176.71,
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-      "id": "t_shopping_gen_28",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_43",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.0,
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+        "time": 135.0,
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     },
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-      "id": "t_shopping_gen_29",
+      "id": "t_shopping_gen_43",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1995,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.57,
-        "distance": 1197.12,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 43.79,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2037,35 @@
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     },
     {
-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 45.15,
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2079,35 @@
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     {
-      "id": "t_shopping_gen_36",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_45",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_46",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2112,35 +2121,35 @@
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     {
-      "id": "t_shopping_gen_39",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_46",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "id": "t_shopping_gen_40",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_47",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "id": "t_shopping_gen_41",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2163,35 @@
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     },
     {
-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_47",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.08,
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-      "id": "t_shopping_gen_43",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_48",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 46.06,
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+      "id": "t_shopping_gen_48",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2205,35 @@
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     },
     {
-      "id": "t_shopping_gen_45",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_48",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_46",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_49",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.28,
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+        "time": 132.85,
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+      "id": "t_shopping_gen_49",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2247,28 @@
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     {
-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.94,
-        "distance": 1204.74,
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-      "task_id": "t_shopping",
-      "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 45.76,
-        "distance": 1234.29,
+        "cost": 9.81,
+        "time": 137.28,
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@@ -2280,35 +2289,35 @@
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     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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-        "time": 46.17,
-        "distance": 1186.08,
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     {
-      "id": "t_shopping_gen_52",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_51",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 44.45,
-        "distance": 1194.92,
+        "cost": 9.94,
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     {
-      "id": "t_shopping_gen_53",
+      "id": "t_shopping_gen_51",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2331,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-        "time": 45.54,
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     {
-      "id": "t_shopping_gen_55",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.24,
-        "distance": 1228.06,
+        "cost": 10.2,
+        "time": 132.71,
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     },
     {
-      "id": "t_shopping_gen_56",
+      "id": "t_shopping_gen_52",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2373,35 @@
       }
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     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2415,35 @@
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-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2457,35 @@
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-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
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       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2499,35 @@
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-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
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       "provider_id": "p_gen_3",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.73,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2541,35 @@
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     },
     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_57",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2583,35 @@
       }
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     {
-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.64,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2625,35 @@
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     {
-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1185.87,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2667,35 @@
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     },
     {
-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2709,35 @@
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     },
     {
-      "id": "t_shopping_gen_81",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_82",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_61",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.81,
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+      "id": "t_shopping_gen_61",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2751,35 @@
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     {
-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_62",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2793,35 @@
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     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "id": "t_shopping_gen_63",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2835,35 @@
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     {
-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_91",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_64",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2877,35 @@
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     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1232.76,
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-      "id": "t_shopping_gen_94",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_65",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "id": "t_shopping_gen_95",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2919,35 @@
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-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2961,21 @@
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-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2989,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3022,35 +3031,35 @@
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     },
     {
-      "id": "t_movie_gen_6",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_68",
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       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3073,35 @@
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     },
     {
-      "id": "t_movie_gen_9",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_69",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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     },
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-      "id": "t_movie_gen_10",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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     },
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3106,35 +3115,35 @@
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     },
     {
-      "id": "t_movie_gen_12",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_70",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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     },
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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     },
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3148,35 +3157,35 @@
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     },
     {
-      "id": "t_movie_gen_15",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_71",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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     },
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-      "id": "t_movie_gen_16",
-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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     },
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3199,35 @@
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     },
     {
-      "id": "t_movie_gen_18",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_72",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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     },
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+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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     },
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+      "id": "t_movie_gen_73",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3232,35 +3241,35 @@
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     },
     {
-      "id": "t_movie_gen_21",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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     },
     {
-      "id": "t_movie_gen_22",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_73",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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     },
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+      "id": "t_movie_gen_74",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3274,35 +3283,35 @@
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     },
     {
-      "id": "t_movie_gen_24",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_74",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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     },
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3325,35 @@
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     },
     {
-      "id": "t_movie_gen_27",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_75",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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     },
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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+      "id": "t_movie_gen_76",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3358,35 +3367,35 @@
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     },
     {
-      "id": "t_movie_gen_30",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_76",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+      "id": "t_movie_gen_77",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3400,35 +3409,35 @@
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-      "id": "t_movie_gen_33",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_77",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "id": "t_movie_gen_78",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3442,35 +3451,35 @@
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     },
     {
-      "id": "t_movie_gen_36",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_78",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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@@ -3526,35 +3535,35 @@
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@@ -3568,35 +3577,35 @@
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@@ -3610,35 +3619,35 @@
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@@ -3652,35 +3661,35 @@
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@@ -3694,35 +3703,35 @@
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@@ -3736,35 +3745,35 @@
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@@ -3778,35 +3787,35 @@
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@@ -3820,35 +3829,35 @@
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@@ -3862,35 +3871,35 @@
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@@ -3904,35 +3913,35 @@
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@@ -3946,35 +3955,35 @@
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+        "gen_feat_2": 0.502288,
+        "gen_feat_3": 510.12
+      }
+    },
+    {
+      "id": "t_shopping_gen_455",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
+      "features": {
+        "cost": 19.75,
+        "time": 43.71,
+        "distance": 1195.99,
+        "gen_feat_1": 489.21,
+        "gen_feat_2": 0.494212,
+        "gen_feat_3": 497.0
+      }
+    },
+    {
+      "id": "t_dining_gen_455",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
+      "features": {
+        "cost": 19.61,
+        "time": 61.53,
+        "distance": 1589.83,
+        "gen_feat_1": 501.55,
+        "gen_feat_2": 0.487844,
+        "gen_feat_3": 485.04
+      }
+    },
+    {
+      "id": "t_movie_gen_456",
       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "gen_feat_3": 493.5
+        "cost": 10.0,
+        "time": 138.57,
+        "distance": 1668.29,
+        "gen_feat_1": 511.52,
+        "gen_feat_2": 0.508498,
+        "gen_feat_3": 498.28
       }
     },
     {
-      "id": "t_movie_gen_90",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_456",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
-        "cost": 10.28,
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-        "distance": 1718.09,
-        "gen_feat_1": 488.68,
-        "gen_feat_2": 0.49537,
-        "gen_feat_3": 493.95
+        "cost": 20.35,
+        "time": 45.83,
+        "distance": 1214.44,
+        "gen_feat_1": 497.48,
+        "gen_feat_2": 0.490448,
+        "gen_feat_3": 501.46
       }
     },
     {
-      "id": "t_movie_gen_91",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_456",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 137.3,
-        "distance": 1693.34,
-        "gen_feat_1": 493.19,
-        "gen_feat_2": 0.495672,
-        "gen_feat_3": 488.25
+        "cost": 20.54,
+        "time": 60.5,
+        "distance": 1558.15,
+        "gen_feat_1": 492.47,
+        "gen_feat_2": 0.490918,
+        "gen_feat_3": 495.54
       }
     },
     {
-      "id": "t_movie_gen_92",
+      "id": "t_movie_gen_457",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 137.58,
-        "distance": 1744.3,
-        "gen_feat_1": 491.56,
-        "gen_feat_2": 0.498387,
-        "gen_feat_3": 511.69
+        "cost": 10.22,
+        "time": 131.17,
+        "distance": 1696.91,
+        "gen_feat_1": 492.11,
+        "gen_feat_2": 0.498684,
+        "gen_feat_3": 491.48
       }
     },
     {
-      "id": "t_movie_gen_93",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_457",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
-        "cost": 9.91,
-        "time": 133.34,
-        "distance": 1702.93,
-        "gen_feat_1": 488.01,
-        "gen_feat_2": 0.502779,
-        "gen_feat_3": 491.18
+        "cost": 19.56,
+        "time": 44.05,
+        "distance": 1221.95,
+        "gen_feat_1": 496.42,
+        "gen_feat_2": 0.500116,
+        "gen_feat_3": 496.82
       }
     },
     {
-      "id": "t_movie_gen_94",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_457",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
-        "cost": 9.95,
-        "time": 134.1,
-        "distance": 1680.7,
-        "gen_feat_1": 497.7,
-        "gen_feat_2": 0.497436,
-        "gen_feat_3": 502.47
+        "cost": 19.94,
+        "time": 59.43,
+        "distance": 1607.97,
+        "gen_feat_1": 486.39,
+        "gen_feat_2": 0.496876,
+        "gen_feat_3": 487.75
       }
     },
     {
-      "id": "t_movie_gen_95",
+      "id": "t_movie_gen_458",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 10.19,
-        "time": 136.67,
-        "distance": 1705.0,
-        "gen_feat_1": 488.28,
-        "gen_feat_2": 0.487878,
-        "gen_feat_3": 495.8
+        "cost": 10.02,
+        "time": 131.04,
+        "distance": 1667.37,
+        "gen_feat_1": 511.81,
+        "gen_feat_2": 0.50934,
+        "gen_feat_3": 495.95
       }
     },
     {
-      "id": "t_movie_gen_96",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_458",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
-        "cost": 9.9,
-        "time": 134.07,
-        "distance": 1659.49,
-        "gen_feat_1": 492.47,
-        "gen_feat_2": 0.492451,
-        "gen_feat_3": 511.78
+        "cost": 19.93,
+        "time": 43.91,
+        "distance": 1191.08,
+        "gen_feat_1": 488.59,
+        "gen_feat_2": 0.510665,
+        "gen_feat_3": 497.35
       }
     },
     {
-      "id": "t_movie_gen_97",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_458",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
-        "cost": 10.21,
-        "time": 134.31,
-        "distance": 1734.61,
-        "gen_feat_1": 493.2,
-        "gen_feat_2": 0.488477,
-        "gen_feat_3": 503.93
+        "cost": 20.07,
+        "time": 58.39,
+        "distance": 1569.06,
+        "gen_feat_1": 498.73,
+        "gen_feat_2": 0.505299,
+        "gen_feat_3": 513.0
       }
     },
     {
-      "id": "t_movie_gen_98",
+      "id": "t_movie_gen_459",
       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 10.19,
-        "time": 135.67,
-        "distance": 1729.26,
-        "gen_feat_1": 489.64,
-        "gen_feat_2": 0.491387,
-        "gen_feat_3": 506.86
+        "cost": 9.77,
+        "time": 134.44,
+        "distance": 1659.22,
+        "gen_feat_1": 498.97,
+        "gen_feat_2": 0.49043,
+        "gen_feat_3": 497.71
       }
     },
     {
-      "id": "t_movie_gen_99",
+      "id": "t_shopping_gen_459",
+      "task_id": "t_shopping",
+      "provider_id": "p_seven_night_club",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
+      "features": {
+        "cost": 19.78,
+        "time": 45.97,
+        "distance": 1218.97,
+        "gen_feat_1": 509.17,
+        "gen_feat_2": 0.50674,
+        "gen_feat_3": 508.71
+      }
+    },
+    {
+      "id": "t_dining_gen_459",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 20.2,
+        "time": 59.13,
+        "distance": 1577.0,
+        "gen_feat_1": 501.15,
+        "gen_feat_2": 0.491523,
+        "gen_feat_3": 493.33
+      }
+    },
+    {
+      "id": "t_movie_gen_460",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.06,
+        "time": 134.42,
+        "distance": 1653.26,
+        "gen_feat_1": 485.22,
+        "gen_feat_2": 0.505593,
+        "gen_feat_3": 512.3
+      }
+    },
+    {
+      "id": "t_shopping_gen_460",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 20.28,
+        "time": 44.99,
+        "distance": 1165.06,
+        "gen_feat_1": 507.27,
+        "gen_feat_2": 0.486591,
+        "gen_feat_3": 486.55
+      }
+    },
+    {
+      "id": "t_dining_gen_460",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.82,
+        "time": 59.35,
+        "distance": 1586.39,
+        "gen_feat_1": 505.95,
+        "gen_feat_2": 0.489393,
+        "gen_feat_3": 503.61
+      }
+    },
+    {
+      "id": "t_movie_gen_461",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
+      "features": {
+        "cost": 10.0,
+        "time": 130.97,
+        "distance": 1721.88,
+        "gen_feat_1": 502.54,
+        "gen_feat_2": 0.49302,
+        "gen_feat_3": 485.96
+      }
+    },
+    {
+      "id": "t_shopping_gen_461",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
+      "features": {
+        "cost": 20.01,
+        "time": 45.62,
+        "distance": 1186.44,
+        "gen_feat_1": 488.91,
+        "gen_feat_2": 0.506015,
+        "gen_feat_3": 493.77
+      }
+    },
+    {
+      "id": "t_dining_gen_461",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
+      "features": {
+        "cost": 20.57,
+        "time": 61.57,
+        "distance": 1598.5,
+        "gen_feat_1": 514.13,
+        "gen_feat_2": 0.494189,
+        "gen_feat_3": 514.2
+      }
+    },
+    {
+      "id": "t_movie_gen_462",
       "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
+      "features": {
+        "cost": 10.11,
+        "time": 131.83,
+        "distance": 1724.14,
+        "gen_feat_1": 492.76,
+        "gen_feat_2": 0.49595,
+        "gen_feat_3": 509.76
+      }
+    },
+    {
+      "id": "t_shopping_gen_462",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
-        "cost": 9.79,
-        "time": 133.64,
-        "distance": 1673.71,
-        "gen_feat_1": 505.04,
-        "gen_feat_2": 0.505422,
-        "gen_feat_3": 513.37
+        "cost": 20.43,
+        "time": 44.04,
+        "distance": 1171.7,
+        "gen_feat_1": 486.46,
+        "gen_feat_2": 0.489088,
+        "gen_feat_3": 511.84
+      }
+    },
+    {
+      "id": "t_dining_gen_462",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 19.41,
+        "time": 60.08,
+        "distance": 1601.47,
+        "gen_feat_1": 511.48,
+        "gen_feat_2": 0.506823,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_movie_gen_463",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.03,
+        "time": 131.06,
+        "distance": 1726.37,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.492539,
+        "gen_feat_3": 494.85
+      }
+    },
+    {
+      "id": "t_shopping_gen_463",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 19.96,
+        "time": 44.27,
+        "distance": 1176.85,
+        "gen_feat_1": 506.18,
+        "gen_feat_2": 0.495792,
+        "gen_feat_3": 513.99
+      }
+    },
+    {
+      "id": "t_dining_gen_463",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4455,7 +19766,8 @@
       "scope": "GLOBAL",
       "attribute_id": "distance",
       "op": "<=",
-      "value": 2000
+      "value": 2000,
+      "hard": true
     },
     {
       "id": "c_time_budget",
@@ -4464,7 +19776,7 @@
       "attribute_id": "time",
       "op": "<=",
       "value": 240,
-      "hard": false
+      "hard": true
     },
     {
       "id": "c_cost_budget",
@@ -4473,43 +19785,12 @@
       "attribute_id": "cost",
       "op": "<=",
       "value": 100,
-      "hard": false
-    },
-    {
-      "id": "gen_c_global_cost_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "GLOBAL",
-      "attribute_id": "cost",
-      "op": "<=",
-      "value": 50.07,
-      "hard": true
-    },
-    {
-      "id": "gen_c_local_t_dining_time_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "LOCAL",
-      "tasks": [
-        "t_dining"
-      ],
-      "attribute_id": "time",
-      "op": "<=",
-      "value": 59.79,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_many_soft.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_many_soft.json
index 80359f9..527c74a 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_many_soft.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_many_soft.json
@@ -3,13 +3,20 @@
     "id": "zhang2014-entertainment-planner-running-example_many_soft",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [many, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "ANY_COMPLETED",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -236,35 +243,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +285,35 @@
       }
     },
     {
-      "id": "t_dining_gen_5",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 20.22,
-        "time": 60.39,
-        "distance": 1564.48,
+        "cost": 10.11,
+        "time": 135.87,
+        "distance": 1662.26,
         "gen_feat_1": 491.41,
         "gen_feat_2": 0.490673,
         "gen_feat_3": 490.61
       }
     },
     {
-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.38,
-        "time": 58.67,
-        "distance": 1626.15,
+        "time": 44.01,
+        "distance": 1219.61,
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+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +327,35 @@
       }
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     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +369,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +411,35 @@
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     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +453,35 @@
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     {
-      "id": "t_dining_gen_17",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_7",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_7",
+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +495,35 @@
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     {
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_8",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
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       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +537,35 @@
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     {
-      "id": "t_dining_gen_23",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_9",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_9",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +579,35 @@
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     {
-      "id": "t_dining_gen_26",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_10",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_10",
+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +621,35 @@
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     {
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_11",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_11",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "id": "t_dining_gen_11",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +663,35 @@
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     {
-      "id": "t_dining_gen_32",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_12",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_12",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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+      "id": "t_dining_gen_12",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -698,35 +705,35 @@
       }
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     {
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_13",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "id": "t_shopping_gen_13",
+      "task_id": "t_shopping",
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+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -740,35 +747,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_14",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +789,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_15",
+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -824,35 +831,35 @@
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-      "id": "t_dining_gen_44",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_16",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +873,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +915,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -950,35 +957,35 @@
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@@ -992,35 +999,35 @@
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@@ -1034,35 +1041,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -1076,35 +1083,35 @@
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@@ -1118,35 +1125,35 @@
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@@ -1160,35 +1167,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1202,35 +1209,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1244,35 +1251,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1286,35 +1293,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -1328,35 +1335,35 @@
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@@ -1370,35 +1377,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1412,35 +1419,35 @@
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     {
-      "id": "t_dining_gen_86",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_30",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_30",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1454,35 +1461,35 @@
       }
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     {
-      "id": "t_dining_gen_89",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_31",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "id": "t_dining_gen_90",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_31",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-        "distance": 1640.49,
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1496,35 +1503,35 @@
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     },
     {
-      "id": "t_dining_gen_92",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_32",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "id": "t_dining_gen_32",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1545,35 @@
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     },
     {
-      "id": "t_dining_gen_95",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_33",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "distance": 1593.3,
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-      "id": "t_dining_gen_96",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_33",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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-        "distance": 1552.26,
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+      "id": "t_dining_gen_33",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1587,21 @@
       }
     },
     {
-      "id": "t_dining_gen_98",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "distance": 1593.89,
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-      "id": "t_shopping_gen_2",
+      "id": "t_shopping_gen_34",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1615,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_3",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1196.21,
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-      "id": "t_shopping_gen_4",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_35",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.9,
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+      "id": "t_shopping_gen_35",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1657,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_6",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_7",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_36",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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     },
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+      "id": "t_shopping_gen_36",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1699,35 @@
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     {
-      "id": "t_shopping_gen_9",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_37",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "id": "t_shopping_gen_37",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1741,35 @@
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     {
-      "id": "t_shopping_gen_12",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1170.61,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_38",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 46.21,
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-      "id": "t_shopping_gen_14",
+      "id": "t_shopping_gen_38",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1783,35 @@
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     {
-      "id": "t_shopping_gen_15",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 44.79,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_39",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1825,35 @@
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     {
-      "id": "t_shopping_gen_18",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_40",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1867,35 @@
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     {
-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_41",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.23,
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+      "id": "t_shopping_gen_41",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1909,35 @@
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     {
-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 45.29,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "id": "t_shopping_gen_26",
+      "id": "t_shopping_gen_42",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1951,35 @@
       }
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     {
-      "id": "t_shopping_gen_27",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.28,
-        "distance": 1176.71,
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+        "distance": 1568.95,
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-      "id": "t_shopping_gen_28",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_43",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.0,
-        "distance": 1216.17,
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+        "time": 135.0,
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         "gen_feat_3": 509.87
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-      "id": "t_shopping_gen_29",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1993,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.57,
-        "distance": 1197.12,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 43.79,
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2035,35 @@
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     {
-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 44.05,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2077,35 @@
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     },
     {
-      "id": "t_shopping_gen_36",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_45",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.5,
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-      "id": "t_shopping_gen_37",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_46",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.26,
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-      "id": "t_shopping_gen_38",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2112,35 +2119,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_39",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_46",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1182.79,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.22,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2161,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_47",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.08,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2203,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_45",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_48",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.8,
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     {
-      "id": "t_shopping_gen_46",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.28,
-        "distance": 1216.64,
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+        "time": 132.85,
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     },
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+      "id": "t_shopping_gen_49",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2245,28 @@
       }
     },
     {
-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.94,
-        "distance": 1204.74,
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-      "id": "t_shopping_gen_49",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.76,
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+        "time": 137.28,
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@@ -2280,35 +2287,35 @@
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     },
     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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-        "time": 46.17,
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-      "id": "t_shopping_gen_52",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_51",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 44.45,
-        "distance": 1194.92,
+        "cost": 9.94,
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     },
     {
-      "id": "t_shopping_gen_53",
+      "id": "t_shopping_gen_51",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2329,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.54,
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     {
-      "id": "t_shopping_gen_55",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.24,
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+        "time": 132.71,
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     },
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-      "id": "t_shopping_gen_56",
+      "id": "t_shopping_gen_52",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2371,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1227.05,
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-      "id": "t_shopping_gen_58",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_53",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.42,
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+        "time": 136.25,
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-      "id": "t_shopping_gen_59",
+      "id": "t_shopping_gen_53",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2413,35 @@
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     {
-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.0,
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-      "id": "t_shopping_gen_61",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_54",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 46.1,
-        "distance": 1190.97,
+        "cost": 10.09,
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     },
     {
-      "id": "t_shopping_gen_62",
+      "id": "t_shopping_gen_54",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2455,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_54",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.97,
-        "distance": 1190.2,
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     {
-      "id": "t_shopping_gen_64",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_55",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.03,
-        "distance": 1178.97,
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+        "time": 132.1,
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-      "id": "t_shopping_gen_65",
+      "id": "t_shopping_gen_55",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2497,35 @@
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-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
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       "provider_id": "p_gen_3",
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-      "id": "t_shopping_gen_67",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_56",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.73,
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+        "time": 134.2,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2539,35 @@
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     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_57",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2581,35 @@
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     {
-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.64,
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2623,35 @@
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     {
-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2665,35 @@
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     {
-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2707,35 @@
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     {
-      "id": "t_shopping_gen_81",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_82",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2749,35 @@
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     {
-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2791,35 @@
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     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "id": "t_shopping_gen_89",
+      "id": "t_shopping_gen_63",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2833,35 @@
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     {
-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-      "id": "t_shopping_gen_91",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_64",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "id": "t_shopping_gen_64",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2875,35 @@
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     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1232.76,
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-      "id": "t_shopping_gen_94",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_65",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2917,35 @@
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     {
-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2959,21 @@
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     {
-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_movie_gen_2",
+      "id": "t_movie_gen_67",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2987,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-        "distance": 1664.29,
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-      "id": "t_movie_gen_4",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_67",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
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-        "time": 136.06,
-        "distance": 1704.88,
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-      "id": "t_movie_gen_5",
+      "id": "t_movie_gen_68",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3022,35 +3029,35 @@
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     },
     {
-      "id": "t_movie_gen_6",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_68",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3071,35 @@
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-      "task_id": "t_movie",
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@@ -3106,35 +3113,35 @@
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-      "task_id": "t_movie",
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@@ -3148,35 +3155,35 @@
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3197,35 @@
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     },
     {
-      "id": "t_movie_gen_18",
-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3232,35 +3239,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
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@@ -3274,35 +3281,35 @@
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-      "task_id": "t_movie",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3323,35 @@
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-      "task_id": "t_movie",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3358,35 +3365,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
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@@ -3400,35 +3407,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3442,35 +3449,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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@@ -3484,35 +3491,35 @@
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-      "task_id": "t_movie",
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@@ -3526,35 +3533,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3568,35 +3575,35 @@
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@@ -3610,35 +3617,35 @@
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@@ -3652,35 +3659,35 @@
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@@ -3694,35 +3701,35 @@
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@@ -3736,35 +3743,35 @@
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@@ -3778,35 +3785,35 @@
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@@ -3820,35 +3827,35 @@
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@@ -3904,35 +3911,35 @@
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@@ -3946,35 +3953,35 @@
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@@ -3988,35 +3995,35 @@
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@@ -4030,35 +4037,35 @@
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@@ -4072,35 +4079,35 @@
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -4114,35 +4121,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_94",
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -4156,35 +4163,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_95",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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-      "task_id": "t_movie",
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       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -4198,143 +4205,15445 @@
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+      "id": "t_shopping_gen_96",
+      "task_id": "t_shopping",
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+      "task_id": "t_movie",
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       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
-        "cost": 9.95,
-        "time": 134.1,
-        "distance": 1680.7,
-        "gen_feat_1": 497.7,
-        "gen_feat_2": 0.497436,
-        "gen_feat_3": 502.47
+        "cost": 19.94,
+        "time": 59.43,
+        "distance": 1607.97,
+        "gen_feat_1": 486.39,
+        "gen_feat_2": 0.496876,
+        "gen_feat_3": 487.75
       }
     },
     {
-      "id": "t_movie_gen_95",
+      "id": "t_movie_gen_458",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 10.19,
-        "time": 136.67,
-        "distance": 1705.0,
-        "gen_feat_1": 488.28,
-        "gen_feat_2": 0.487878,
-        "gen_feat_3": 495.8
+        "cost": 10.02,
+        "time": 131.04,
+        "distance": 1667.37,
+        "gen_feat_1": 511.81,
+        "gen_feat_2": 0.50934,
+        "gen_feat_3": 495.95
       }
     },
     {
-      "id": "t_movie_gen_96",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_458",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
-        "cost": 9.9,
-        "time": 134.07,
-        "distance": 1659.49,
-        "gen_feat_1": 492.47,
-        "gen_feat_2": 0.492451,
-        "gen_feat_3": 511.78
+        "cost": 19.93,
+        "time": 43.91,
+        "distance": 1191.08,
+        "gen_feat_1": 488.59,
+        "gen_feat_2": 0.510665,
+        "gen_feat_3": 497.35
       }
     },
     {
-      "id": "t_movie_gen_97",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_458",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
-        "cost": 10.21,
-        "time": 134.31,
-        "distance": 1734.61,
-        "gen_feat_1": 493.2,
-        "gen_feat_2": 0.488477,
-        "gen_feat_3": 503.93
+        "cost": 20.07,
+        "time": 58.39,
+        "distance": 1569.06,
+        "gen_feat_1": 498.73,
+        "gen_feat_2": 0.505299,
+        "gen_feat_3": 513.0
       }
     },
     {
-      "id": "t_movie_gen_98",
+      "id": "t_movie_gen_459",
       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 10.19,
-        "time": 135.67,
-        "distance": 1729.26,
-        "gen_feat_1": 489.64,
-        "gen_feat_2": 0.491387,
-        "gen_feat_3": 506.86
+        "cost": 9.77,
+        "time": 134.44,
+        "distance": 1659.22,
+        "gen_feat_1": 498.97,
+        "gen_feat_2": 0.49043,
+        "gen_feat_3": 497.71
       }
     },
     {
-      "id": "t_movie_gen_99",
+      "id": "t_shopping_gen_459",
+      "task_id": "t_shopping",
+      "provider_id": "p_seven_night_club",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
+      "features": {
+        "cost": 19.78,
+        "time": 45.97,
+        "distance": 1218.97,
+        "gen_feat_1": 509.17,
+        "gen_feat_2": 0.50674,
+        "gen_feat_3": 508.71
+      }
+    },
+    {
+      "id": "t_dining_gen_459",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 20.2,
+        "time": 59.13,
+        "distance": 1577.0,
+        "gen_feat_1": 501.15,
+        "gen_feat_2": 0.491523,
+        "gen_feat_3": 493.33
+      }
+    },
+    {
+      "id": "t_movie_gen_460",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.06,
+        "time": 134.42,
+        "distance": 1653.26,
+        "gen_feat_1": 485.22,
+        "gen_feat_2": 0.505593,
+        "gen_feat_3": 512.3
+      }
+    },
+    {
+      "id": "t_shopping_gen_460",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 20.28,
+        "time": 44.99,
+        "distance": 1165.06,
+        "gen_feat_1": 507.27,
+        "gen_feat_2": 0.486591,
+        "gen_feat_3": 486.55
+      }
+    },
+    {
+      "id": "t_dining_gen_460",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.82,
+        "time": 59.35,
+        "distance": 1586.39,
+        "gen_feat_1": 505.95,
+        "gen_feat_2": 0.489393,
+        "gen_feat_3": 503.61
+      }
+    },
+    {
+      "id": "t_movie_gen_461",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
+      "features": {
+        "cost": 10.0,
+        "time": 130.97,
+        "distance": 1721.88,
+        "gen_feat_1": 502.54,
+        "gen_feat_2": 0.49302,
+        "gen_feat_3": 485.96
+      }
+    },
+    {
+      "id": "t_shopping_gen_461",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
+      "features": {
+        "cost": 20.01,
+        "time": 45.62,
+        "distance": 1186.44,
+        "gen_feat_1": 488.91,
+        "gen_feat_2": 0.506015,
+        "gen_feat_3": 493.77
+      }
+    },
+    {
+      "id": "t_dining_gen_461",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
+      "features": {
+        "cost": 20.57,
+        "time": 61.57,
+        "distance": 1598.5,
+        "gen_feat_1": 514.13,
+        "gen_feat_2": 0.494189,
+        "gen_feat_3": 514.2
+      }
+    },
+    {
+      "id": "t_movie_gen_462",
       "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
+      "features": {
+        "cost": 10.11,
+        "time": 131.83,
+        "distance": 1724.14,
+        "gen_feat_1": 492.76,
+        "gen_feat_2": 0.49595,
+        "gen_feat_3": 509.76
+      }
+    },
+    {
+      "id": "t_shopping_gen_462",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
-        "cost": 9.79,
-        "time": 133.64,
-        "distance": 1673.71,
-        "gen_feat_1": 505.04,
-        "gen_feat_2": 0.505422,
-        "gen_feat_3": 513.37
+        "cost": 20.43,
+        "time": 44.04,
+        "distance": 1171.7,
+        "gen_feat_1": 486.46,
+        "gen_feat_2": 0.489088,
+        "gen_feat_3": 511.84
+      }
+    },
+    {
+      "id": "t_dining_gen_462",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 19.41,
+        "time": 60.08,
+        "distance": 1601.47,
+        "gen_feat_1": 511.48,
+        "gen_feat_2": 0.506823,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_movie_gen_463",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.03,
+        "time": 131.06,
+        "distance": 1726.37,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.492539,
+        "gen_feat_3": 494.85
+      }
+    },
+    {
+      "id": "t_shopping_gen_463",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 19.96,
+        "time": 44.27,
+        "distance": 1176.85,
+        "gen_feat_1": 506.18,
+        "gen_feat_2": 0.495792,
+        "gen_feat_3": 513.99
+      }
+    },
+    {
+      "id": "t_dining_gen_463",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4482,35 +19791,25 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 50.07,
+      "value": 54.89,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_dining_time_1",
+      "id": "gen_c_local_t_movie_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_dining"
+        "t_movie"
       ],
-      "attribute_id": "time",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 59.79,
+      "value": 501.71,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_hard.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_hard.json
index 8e86fbc..90a4b03 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_hard.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_hard.json
@@ -3,13 +3,22 @@
     "id": "zhang2014-entertainment-planner-running-example_mono_one_hard",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [mono_one, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -236,35 +245,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +287,35 @@
       }
     },
     {
-      "id": "t_dining_gen_5",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 20.22,
-        "time": 60.39,
-        "distance": 1564.48,
+        "cost": 10.11,
+        "time": 135.87,
+        "distance": 1662.26,
         "gen_feat_1": 491.41,
         "gen_feat_2": 0.490673,
         "gen_feat_3": 490.61
       }
     },
     {
-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.38,
-        "time": 58.67,
-        "distance": 1626.15,
+        "time": 44.01,
+        "distance": 1219.61,
         "gen_feat_1": 488.5,
         "gen_feat_2": 0.49348,
         "gen_feat_3": 495.75
       }
     },
     {
-      "id": "t_dining_gen_7",
+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +329,35 @@
       }
     },
     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 19.43,
-        "time": 59.64,
-        "distance": 1598.13,
+        "cost": 9.72,
+        "time": 134.2,
+        "distance": 1698.01,
         "gen_feat_1": 503.89,
         "gen_feat_2": 0.506945,
         "gen_feat_3": 508.17
       }
     },
     {
-      "id": "t_dining_gen_9",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 19.64,
-        "time": 60.54,
-        "distance": 1604.33,
+        "time": 45.4,
+        "distance": 1203.25,
         "gen_feat_1": 486.84,
         "gen_feat_2": 0.506628,
         "gen_feat_3": 501.62
       }
     },
     {
-      "id": "t_dining_gen_10",
+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +371,35 @@
       }
     },
     {
-      "id": "t_dining_gen_11",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.68,
-        "time": 59.16,
-        "distance": 1620.42,
+        "cost": 9.84,
+        "time": 133.12,
+        "distance": 1721.7,
         "gen_feat_1": 507.98,
         "gen_feat_2": 0.488942,
         "gen_feat_3": 489.19
       }
     },
     {
-      "id": "t_dining_gen_12",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.74,
-        "time": 59.04,
-        "distance": 1602.16,
+        "time": 44.28,
+        "distance": 1201.62,
         "gen_feat_1": 504.58,
         "gen_feat_2": 0.489389,
         "gen_feat_3": 507.41
       }
     },
     {
-      "id": "t_dining_gen_13",
+      "id": "t_dining_gen_5",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +413,35 @@
       }
     },
     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.72,
-        "time": 58.91,
-        "distance": 1626.35,
+        "cost": 9.86,
+        "time": 132.55,
+        "distance": 1728.0,
         "gen_feat_1": 509.41,
         "gen_feat_2": 0.490291,
         "gen_feat_3": 514.74
       }
     },
     {
-      "id": "t_dining_gen_15",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_6",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.59,
-        "time": 60.67,
-        "distance": 1631.73,
+        "time": 45.5,
+        "distance": 1223.8,
         "gen_feat_1": 493.43,
         "gen_feat_2": 0.498961,
         "gen_feat_3": 492.15
       }
     },
     {
-      "id": "t_dining_gen_16",
+      "id": "t_dining_gen_6",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +455,35 @@
       }
     },
     {
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +497,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +539,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +581,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +623,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +665,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -698,35 +707,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -740,35 +749,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +791,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -824,35 +833,35 @@
       }
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_16",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +875,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +917,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -950,35 +959,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_19",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -992,35 +1001,35 @@
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@@ -1034,35 +1043,35 @@
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@@ -1076,35 +1085,35 @@
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@@ -1118,35 +1127,35 @@
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@@ -1160,35 +1169,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -1202,35 +1211,35 @@
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@@ -1244,35 +1253,35 @@
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@@ -1286,35 +1295,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -1328,35 +1337,35 @@
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@@ -1370,35 +1379,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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@@ -1412,35 +1421,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -1454,35 +1463,35 @@
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@@ -1496,35 +1505,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1547,35 @@
       }
     },
     {
-      "id": "t_dining_gen_95",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_33",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 59.51,
-        "distance": 1593.3,
+        "cost": 9.98,
+        "time": 133.9,
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         "gen_feat_2": 0.490214,
         "gen_feat_3": 504.25
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     },
     {
-      "id": "t_dining_gen_96",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_33",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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-        "time": 58.35,
-        "distance": 1552.26,
+        "time": 43.76,
+        "distance": 1164.2,
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         "gen_feat_2": 0.48523,
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     },
     {
-      "id": "t_dining_gen_97",
+      "id": "t_dining_gen_33",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1589,21 @@
       }
     },
     {
-      "id": "t_dining_gen_98",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 61.17,
-        "distance": 1593.89,
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+        "time": 137.64,
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     },
     {
-      "id": "t_shopping_gen_2",
+      "id": "t_shopping_gen_34",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1617,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_3",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1196.21,
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-      "id": "t_shopping_gen_4",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_35",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.9,
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-      "id": "t_shopping_gen_5",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1659,35 @@
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     },
     {
-      "id": "t_shopping_gen_6",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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-        "time": 44.06,
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     {
-      "id": "t_shopping_gen_7",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_36",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.0,
-        "distance": 1183.14,
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     },
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-      "id": "t_shopping_gen_8",
+      "id": "t_shopping_gen_36",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1701,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_9",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.49,
-        "distance": 1235.6,
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     },
     {
-      "id": "t_shopping_gen_10",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_37",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.86,
-        "distance": 1227.31,
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+        "time": 134.59,
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-      "id": "t_shopping_gen_11",
+      "id": "t_shopping_gen_37",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1743,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_12",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1170.61,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_38",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 46.21,
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+      "id": "t_shopping_gen_38",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1785,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_15",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_16",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_39",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "id": "t_shopping_gen_39",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1827,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_18",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 46.02,
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-      "id": "t_shopping_gen_19",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_40",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.76,
-        "distance": 1178.65,
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     },
     {
-      "id": "t_shopping_gen_20",
+      "id": "t_shopping_gen_40",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1869,35 @@
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     },
     {
-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.06,
-        "distance": 1185.1,
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-      "id": "t_shopping_gen_22",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_41",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 45.23,
-        "distance": 1172.35,
+        "cost": 10.04,
+        "time": 135.68,
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     },
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-      "id": "t_shopping_gen_23",
+      "id": "t_shopping_gen_41",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1911,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_25",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_42",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.68,
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+      "id": "t_shopping_gen_42",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1953,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_27",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.28,
-        "distance": 1176.71,
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-      "id": "t_shopping_gen_28",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_43",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.0,
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+        "time": 135.0,
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-      "id": "t_shopping_gen_29",
+      "id": "t_shopping_gen_43",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1995,35 @@
       }
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     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1197.12,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_44",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 43.79,
-        "distance": 1190.28,
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-      "id": "t_shopping_gen_32",
+      "id": "t_shopping_gen_44",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2037,35 @@
       }
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     {
-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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-        "time": 44.05,
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-      "id": "t_shopping_gen_34",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_45",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.15,
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     },
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-      "id": "t_shopping_gen_35",
+      "id": "t_shopping_gen_45",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2079,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_36",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_45",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2112,35 +2121,35 @@
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-      "id": "t_shopping_gen_39",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_46",
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       "provider_id": "p_gen_3",
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-        "distance": 1182.79,
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2163,35 @@
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-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_47",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2205,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_48",
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       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.28,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2247,28 @@
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     {
-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1204.74,
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-      "task_id": "t_shopping",
-      "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.76,
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@@ -2280,35 +2289,35 @@
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     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.17,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2331,35 @@
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     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2373,35 @@
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     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1227.05,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_53",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2415,35 @@
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     {
-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "id": "t_shopping_gen_54",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2457,35 @@
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     },
     {
-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_54",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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     {
-      "id": "t_shopping_gen_64",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_55",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.03,
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-      "id": "t_shopping_gen_65",
+      "id": "t_shopping_gen_55",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2499,35 @@
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     {
-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_56",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2541,35 @@
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     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_70",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_57",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2583,35 @@
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     {
-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_58",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.64,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2625,35 @@
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     {
-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 45.29,
-        "distance": 1185.87,
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       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2667,35 @@
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-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
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       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2709,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
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       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2751,35 @@
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-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
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       "provider_id": "p_gen_3",
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       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2793,35 @@
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     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2835,35 @@
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     {
-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
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       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2877,35 @@
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     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2919,35 @@
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     {
-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2961,21 @@
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     {
-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_movie_gen_2",
+      "id": "t_movie_gen_67",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2989,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "id": "t_movie_gen_4",
-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+      "id": "t_movie_gen_68",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3022,35 +3031,35 @@
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     },
     {
-      "id": "t_movie_gen_6",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_68",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3073,35 @@
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     {
-      "id": "t_movie_gen_9",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_69",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3106,35 +3115,35 @@
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     },
     {
-      "id": "t_movie_gen_12",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_70",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3148,35 +3157,35 @@
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-      "id": "t_movie_gen_15",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_71",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3199,35 @@
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-      "task_id": "t_movie",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
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@@ -3232,35 +3241,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
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@@ -3274,35 +3283,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_74",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3325,35 @@
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     },
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-      "id": "t_movie_gen_27",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_75",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3358,35 +3367,35 @@
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-      "task_id": "t_movie",
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@@ -3400,35 +3409,35 @@
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-      "task_id": "t_movie",
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@@ -3442,35 +3451,35 @@
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@@ -3484,35 +3493,35 @@
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-      "task_id": "t_movie",
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@@ -3526,35 +3535,35 @@
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-      "task_id": "t_movie",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3568,35 +3577,35 @@
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-      "task_id": "t_movie",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3610,35 +3619,35 @@
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-      "task_id": "t_movie",
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@@ -3652,35 +3661,35 @@
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+      "id": "t_shopping_gen_83",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3694,35 +3703,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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@@ -3778,35 +3787,35 @@
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@@ -3820,35 +3829,35 @@
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@@ -3862,35 +3871,35 @@
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@@ -3904,35 +3913,35 @@
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@@ -3946,35 +3955,35 @@
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+        "gen_feat_3": 512.3
+      }
+    },
+    {
+      "id": "t_shopping_gen_460",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 20.28,
+        "time": 44.99,
+        "distance": 1165.06,
+        "gen_feat_1": 507.27,
+        "gen_feat_2": 0.486591,
+        "gen_feat_3": 486.55
+      }
+    },
+    {
+      "id": "t_dining_gen_460",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.82,
+        "time": 59.35,
+        "distance": 1586.39,
+        "gen_feat_1": 505.95,
+        "gen_feat_2": 0.489393,
+        "gen_feat_3": 503.61
+      }
+    },
+    {
+      "id": "t_movie_gen_461",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
+      "features": {
+        "cost": 10.0,
+        "time": 130.97,
+        "distance": 1721.88,
+        "gen_feat_1": 502.54,
+        "gen_feat_2": 0.49302,
+        "gen_feat_3": 485.96
+      }
+    },
+    {
+      "id": "t_shopping_gen_461",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
+      "features": {
+        "cost": 20.01,
+        "time": 45.62,
+        "distance": 1186.44,
+        "gen_feat_1": 488.91,
+        "gen_feat_2": 0.506015,
+        "gen_feat_3": 493.77
+      }
+    },
+    {
+      "id": "t_dining_gen_461",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
+      "features": {
+        "cost": 20.57,
+        "time": 61.57,
+        "distance": 1598.5,
+        "gen_feat_1": 514.13,
+        "gen_feat_2": 0.494189,
+        "gen_feat_3": 514.2
+      }
+    },
+    {
+      "id": "t_movie_gen_462",
       "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
+      "features": {
+        "cost": 10.11,
+        "time": 131.83,
+        "distance": 1724.14,
+        "gen_feat_1": 492.76,
+        "gen_feat_2": 0.49595,
+        "gen_feat_3": 509.76
+      }
+    },
+    {
+      "id": "t_shopping_gen_462",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
-        "cost": 9.79,
-        "time": 133.64,
-        "distance": 1673.71,
-        "gen_feat_1": 505.04,
-        "gen_feat_2": 0.505422,
-        "gen_feat_3": 513.37
+        "cost": 20.43,
+        "time": 44.04,
+        "distance": 1171.7,
+        "gen_feat_1": 486.46,
+        "gen_feat_2": 0.489088,
+        "gen_feat_3": 511.84
+      }
+    },
+    {
+      "id": "t_dining_gen_462",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 19.41,
+        "time": 60.08,
+        "distance": 1601.47,
+        "gen_feat_1": 511.48,
+        "gen_feat_2": 0.506823,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_movie_gen_463",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.03,
+        "time": 131.06,
+        "distance": 1726.37,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.492539,
+        "gen_feat_3": 494.85
+      }
+    },
+    {
+      "id": "t_shopping_gen_463",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 19.96,
+        "time": 44.27,
+        "distance": 1176.85,
+        "gen_feat_1": 506.18,
+        "gen_feat_2": 0.495792,
+        "gen_feat_3": 513.99
+      }
+    },
+    {
+      "id": "t_dining_gen_463",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4455,7 +19766,8 @@
       "scope": "GLOBAL",
       "attribute_id": "distance",
       "op": "<=",
-      "value": 2000
+      "value": 2000,
+      "hard": true
     },
     {
       "id": "c_time_budget",
@@ -4464,7 +19776,7 @@
       "attribute_id": "time",
       "op": "<=",
       "value": 240,
-      "hard": false
+      "hard": true
     },
     {
       "id": "c_cost_budget",
@@ -4473,43 +19785,12 @@
       "attribute_id": "cost",
       "op": "<=",
       "value": 100,
-      "hard": false
-    },
-    {
-      "id": "gen_c_global_cost_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "GLOBAL",
-      "attribute_id": "cost",
-      "op": "<=",
-      "value": 50.07,
-      "hard": true
-    },
-    {
-      "id": "gen_c_local_t_dining_time_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "LOCAL",
-      "tasks": [
-        "t_dining"
-      ],
-      "attribute_id": "time",
-      "op": "<=",
-      "value": 59.79,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_soft.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_soft.json
index 60bbae5..d305dcb 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_soft.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_one_soft.json
@@ -3,13 +3,20 @@
     "id": "zhang2014-entertainment-planner-running-example_mono_one_soft",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [mono_one, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -236,35 +243,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +285,35 @@
       }
     },
     {
-      "id": "t_dining_gen_5",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 20.22,
-        "time": 60.39,
-        "distance": 1564.48,
+        "cost": 10.11,
+        "time": 135.87,
+        "distance": 1662.26,
         "gen_feat_1": 491.41,
         "gen_feat_2": 0.490673,
         "gen_feat_3": 490.61
       }
     },
     {
-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.38,
-        "time": 58.67,
-        "distance": 1626.15,
+        "time": 44.01,
+        "distance": 1219.61,
         "gen_feat_1": 488.5,
         "gen_feat_2": 0.49348,
         "gen_feat_3": 495.75
       }
     },
     {
-      "id": "t_dining_gen_7",
+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +327,35 @@
       }
     },
     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 19.43,
-        "time": 59.64,
-        "distance": 1598.13,
+        "cost": 9.72,
+        "time": 134.2,
+        "distance": 1698.01,
         "gen_feat_1": 503.89,
         "gen_feat_2": 0.506945,
         "gen_feat_3": 508.17
       }
     },
     {
-      "id": "t_dining_gen_9",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 19.64,
-        "time": 60.54,
-        "distance": 1604.33,
+        "time": 45.4,
+        "distance": 1203.25,
         "gen_feat_1": 486.84,
         "gen_feat_2": 0.506628,
         "gen_feat_3": 501.62
       }
     },
     {
-      "id": "t_dining_gen_10",
+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +369,35 @@
       }
     },
     {
-      "id": "t_dining_gen_11",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.68,
-        "time": 59.16,
-        "distance": 1620.42,
+        "cost": 9.84,
+        "time": 133.12,
+        "distance": 1721.7,
         "gen_feat_1": 507.98,
         "gen_feat_2": 0.488942,
         "gen_feat_3": 489.19
       }
     },
     {
-      "id": "t_dining_gen_12",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.74,
-        "time": 59.04,
-        "distance": 1602.16,
+        "time": 44.28,
+        "distance": 1201.62,
         "gen_feat_1": 504.58,
         "gen_feat_2": 0.489389,
         "gen_feat_3": 507.41
       }
     },
     {
-      "id": "t_dining_gen_13",
+      "id": "t_dining_gen_5",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +411,35 @@
       }
     },
     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.72,
-        "time": 58.91,
-        "distance": 1626.35,
+        "cost": 9.86,
+        "time": 132.55,
+        "distance": 1728.0,
         "gen_feat_1": 509.41,
         "gen_feat_2": 0.490291,
         "gen_feat_3": 514.74
       }
     },
     {
-      "id": "t_dining_gen_15",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_6",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.59,
-        "time": 60.67,
-        "distance": 1631.73,
+        "time": 45.5,
+        "distance": 1223.8,
         "gen_feat_1": 493.43,
         "gen_feat_2": 0.498961,
         "gen_feat_3": 492.15
       }
     },
     {
-      "id": "t_dining_gen_16",
+      "id": "t_dining_gen_6",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +453,35 @@
       }
     },
     {
-      "id": "t_dining_gen_17",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_7",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 20.33,
-        "time": 59.99,
-        "distance": 1602.82,
+        "cost": 10.17,
+        "time": 134.98,
+        "distance": 1702.99,
         "gen_feat_1": 513.49,
         "gen_feat_2": 0.510425,
         "gen_feat_3": 506.46
       }
     },
     {
-      "id": "t_dining_gen_18",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_7",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 20.02,
-        "time": 60.13,
-        "distance": 1639.2,
+        "time": 45.1,
+        "distance": 1229.4,
         "gen_feat_1": 498.4,
         "gen_feat_2": 0.499582,
         "gen_feat_3": 504.62
       }
     },
     {
-      "id": "t_dining_gen_19",
+      "id": "t_dining_gen_7",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +495,35 @@
       }
     },
     {
-      "id": "t_dining_gen_20",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_8",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 20.33,
-        "time": 59.96,
-        "distance": 1568.96,
+        "cost": 10.17,
+        "time": 134.92,
+        "distance": 1667.02,
         "gen_feat_1": 488.36,
         "gen_feat_2": 0.514752,
         "gen_feat_3": 513.42
       }
     },
     {
-      "id": "t_dining_gen_21",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_8",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.8,
-        "time": 58.42,
-        "distance": 1555.46,
+        "time": 43.81,
+        "distance": 1166.59,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.486429,
         "gen_feat_3": 488.41
       }
     },
     {
-      "id": "t_dining_gen_22",
+      "id": "t_dining_gen_8",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +537,35 @@
       }
     },
     {
-      "id": "t_dining_gen_23",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_9",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.42,
-        "time": 61.78,
-        "distance": 1622.72,
+        "cost": 9.71,
+        "time": 139.0,
+        "distance": 1724.14,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.489949,
         "gen_feat_3": 487.73
       }
     },
     {
-      "id": "t_dining_gen_24",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_9",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.71,
-        "time": 59.51,
-        "distance": 1580.85,
+        "time": 44.63,
+        "distance": 1185.64,
         "gen_feat_1": 501.15,
         "gen_feat_2": 0.50297,
         "gen_feat_3": 505.29
       }
     },
     {
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +579,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +621,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +663,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -698,35 +705,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -740,35 +747,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +789,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -824,35 +831,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +873,35 @@
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-      "task_id": "t_dining",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +915,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -950,35 +957,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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@@ -992,35 +999,35 @@
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@@ -1034,35 +1041,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1076,35 +1083,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1118,35 +1125,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1160,35 +1167,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1202,35 +1209,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1244,35 +1251,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1286,35 +1293,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1328,35 +1335,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1370,35 +1377,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1412,35 +1419,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1454,35 +1461,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_31",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1496,35 +1503,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_32",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1545,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1587,21 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1615,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
+      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1657,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_7",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_36",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.0,
-        "distance": 1183.14,
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         "gen_feat_2": 0.496232,
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-      "id": "t_shopping_gen_8",
+      "id": "t_shopping_gen_36",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1699,35 @@
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     },
     {
-      "id": "t_shopping_gen_9",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
         "cost": 20.29,
-        "time": 45.49,
-        "distance": 1235.6,
+        "time": 60.66,
+        "distance": 1647.47,
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-      "id": "t_shopping_gen_10",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_37",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.86,
-        "distance": 1227.31,
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+        "time": 134.59,
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-      "id": "t_shopping_gen_11",
+      "id": "t_shopping_gen_37",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1741,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_12",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1170.61,
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-      "id": "t_shopping_gen_13",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_38",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 46.21,
-        "distance": 1228.85,
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+        "time": 138.63,
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-      "id": "t_shopping_gen_14",
+      "id": "t_shopping_gen_38",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1783,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_15",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 19.91,
-        "time": 44.79,
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-      "id": "t_shopping_gen_16",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_39",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.76,
-        "distance": 1214.32,
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         "gen_feat_3": 514.42
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     },
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-      "id": "t_shopping_gen_17",
+      "id": "t_shopping_gen_39",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1825,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_18",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
         "cost": 20.3,
-        "time": 46.02,
-        "distance": 1191.93,
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     },
     {
-      "id": "t_shopping_gen_19",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_40",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.76,
-        "distance": 1178.65,
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+        "time": 134.29,
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     },
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-      "id": "t_shopping_gen_20",
+      "id": "t_shopping_gen_40",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1867,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.06,
-        "distance": 1185.1,
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-      "id": "t_shopping_gen_22",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_41",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 45.23,
-        "distance": 1172.35,
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+        "time": 135.68,
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     },
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-      "id": "t_shopping_gen_23",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1909,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 19.79,
-        "time": 45.29,
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     {
-      "id": "t_shopping_gen_25",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_42",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.68,
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     },
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-      "id": "t_shopping_gen_26",
+      "id": "t_shopping_gen_42",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1951,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_27",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.28,
-        "distance": 1176.71,
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     },
     {
-      "id": "t_shopping_gen_28",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_43",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.0,
-        "distance": 1216.17,
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+        "time": 135.0,
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         "gen_feat_3": 509.87
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     },
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-      "id": "t_shopping_gen_29",
+      "id": "t_shopping_gen_43",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1993,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
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-        "time": 44.57,
-        "distance": 1197.12,
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-      "id": "t_shopping_gen_31",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_44",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 43.79,
-        "distance": 1190.28,
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+        "time": 131.37,
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     },
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-      "id": "t_shopping_gen_32",
+      "id": "t_shopping_gen_44",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2035,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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-        "time": 44.05,
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     {
-      "id": "t_shopping_gen_34",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_45",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "id": "t_shopping_gen_35",
+      "id": "t_shopping_gen_45",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2077,35 @@
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     {
-      "id": "t_shopping_gen_36",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_45",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.5,
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     {
-      "id": "t_shopping_gen_37",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_46",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.26,
-        "distance": 1203.59,
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-      "id": "t_shopping_gen_38",
+      "id": "t_shopping_gen_46",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2112,35 +2119,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_39",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_46",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 46.16,
-        "distance": 1182.79,
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-      "id": "t_shopping_gen_40",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_47",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.22,
-        "distance": 1217.58,
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-      "id": "t_shopping_gen_41",
+      "id": "t_shopping_gen_47",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2161,35 @@
       }
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     {
-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_47",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.08,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_48",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 46.06,
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-      "id": "t_shopping_gen_44",
+      "id": "t_shopping_gen_48",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2203,35 @@
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     },
     {
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_48",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.8,
-        "distance": 1230.3,
+        "time": 61.07,
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     {
-      "id": "t_shopping_gen_46",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_49",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.28,
-        "distance": 1216.64,
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+        "time": 132.85,
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         "gen_feat_2": 0.485686,
         "gen_feat_3": 513.45
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     },
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-      "id": "t_shopping_gen_47",
+      "id": "t_shopping_gen_49",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2245,28 @@
       }
     },
     {
-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
         "cost": 19.69,
-        "time": 44.94,
-        "distance": 1204.74,
+        "time": 59.92,
+        "distance": 1606.31,
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         "gen_feat_2": 0.485166,
         "gen_feat_3": 509.28
       }
     },
     {
-      "id": "t_shopping_gen_49",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 45.76,
-        "distance": 1234.29,
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+        "time": 137.28,
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         "gen_feat_2": 0.510271,
         "gen_feat_3": 488.57
@@ -2280,35 +2287,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 19.48,
-        "time": 46.17,
-        "distance": 1186.08,
+        "time": 61.56,
+        "distance": 1581.43,
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         "gen_feat_2": 0.491803,
         "gen_feat_3": 503.47
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     },
     {
-      "id": "t_shopping_gen_52",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_51",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.89,
-        "time": 44.45,
-        "distance": 1194.92,
+        "cost": 9.94,
+        "time": 133.35,
+        "distance": 1692.81,
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         "gen_feat_2": 0.486916,
         "gen_feat_3": 500.87
       }
     },
     {
-      "id": "t_shopping_gen_53",
+      "id": "t_shopping_gen_51",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2329,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
         "cost": 19.73,
-        "time": 45.54,
-        "distance": 1223.55,
+        "time": 60.72,
+        "distance": 1631.4,
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         "gen_feat_2": 0.490001,
         "gen_feat_3": 493.72
       }
     },
     {
-      "id": "t_shopping_gen_55",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.24,
-        "distance": 1228.06,
+        "cost": 10.2,
+        "time": 132.71,
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         "gen_feat_2": 0.49955,
         "gen_feat_3": 486.14
       }
     },
     {
-      "id": "t_shopping_gen_56",
+      "id": "t_shopping_gen_52",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2371,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
         "cost": 19.68,
-        "time": 46.32,
-        "distance": 1227.05,
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       }
     },
     {
-      "id": "t_shopping_gen_58",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_53",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 45.42,
-        "distance": 1231.38,
+        "cost": 10.06,
+        "time": 136.25,
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         "gen_feat_2": 0.502657,
         "gen_feat_3": 488.16
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     },
     {
-      "id": "t_shopping_gen_59",
+      "id": "t_shopping_gen_53",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2413,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 20.33,
-        "time": 46.0,
-        "distance": 1170.11,
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     },
     {
-      "id": "t_shopping_gen_61",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_54",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 46.1,
-        "distance": 1190.97,
+        "cost": 10.09,
+        "time": 138.29,
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         "gen_feat_2": 0.501812,
         "gen_feat_3": 493.65
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     },
     {
-      "id": "t_shopping_gen_62",
+      "id": "t_shopping_gen_54",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2455,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_54",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
         "cost": 20.17,
-        "time": 45.97,
-        "distance": 1190.2,
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     },
     {
-      "id": "t_shopping_gen_64",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_55",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.03,
-        "distance": 1178.97,
+        "cost": 9.87,
+        "time": 132.1,
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         "gen_feat_3": 500.21
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     },
     {
-      "id": "t_shopping_gen_65",
+      "id": "t_shopping_gen_55",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2497,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
         "cost": 20.26,
-        "time": 44.73,
-        "distance": 1220.07,
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     },
     {
-      "id": "t_shopping_gen_67",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_56",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 44.73,
-        "distance": 1180.99,
+        "cost": 9.9,
+        "time": 134.2,
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     },
     {
-      "id": "t_shopping_gen_68",
+      "id": "t_shopping_gen_56",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2539,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 20.0,
-        "time": 45.32,
-        "distance": 1179.79,
+        "time": 60.43,
+        "distance": 1573.06,
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     },
     {
-      "id": "t_shopping_gen_70",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_57",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.99,
-        "distance": 1206.39,
+        "cost": 10.04,
+        "time": 137.98,
+        "distance": 1709.05,
         "gen_feat_1": 497.84,
         "gen_feat_2": 0.509326,
         "gen_feat_3": 508.37
       }
     },
     {
-      "id": "t_shopping_gen_71",
+      "id": "t_shopping_gen_57",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2581,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
         "cost": 20.25,
-        "time": 43.89,
-        "distance": 1218.83,
+        "time": 58.52,
+        "distance": 1625.1,
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     },
     {
-      "id": "t_shopping_gen_73",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_58",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.64,
-        "distance": 1171.76,
+        "cost": 10.2,
+        "time": 136.93,
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     },
     {
-      "id": "t_shopping_gen_74",
+      "id": "t_shopping_gen_58",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2623,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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         "cost": 20.45,
-        "time": 45.29,
-        "distance": 1185.87,
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     },
     {
-      "id": "t_shopping_gen_76",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_59",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 44.39,
-        "distance": 1222.53,
+        "cost": 10.05,
+        "time": 133.17,
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     },
     {
-      "id": "t_shopping_gen_77",
+      "id": "t_shopping_gen_59",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2665,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 20.16,
-        "time": 46.07,
-        "distance": 1210.7,
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+        "distance": 1614.26,
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     {
-      "id": "t_shopping_gen_79",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_60",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.66,
-        "distance": 1190.96,
+        "cost": 10.01,
+        "time": 136.98,
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         "gen_feat_3": 510.57
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     },
     {
-      "id": "t_shopping_gen_80",
+      "id": "t_shopping_gen_60",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2707,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_81",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
         "cost": 20.19,
-        "time": 44.4,
-        "distance": 1207.41,
+        "time": 59.19,
+        "distance": 1609.88,
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     {
-      "id": "t_shopping_gen_82",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_61",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.81,
-        "distance": 1232.14,
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+        "time": 137.44,
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     },
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-      "id": "t_shopping_gen_83",
+      "id": "t_shopping_gen_61",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2749,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_62",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2791,35 @@
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     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2833,35 @@
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-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2875,35 @@
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     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1232.76,
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2917,35 @@
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     {
-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2959,21 @@
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     {
-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2987,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3022,35 +3029,35 @@
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     },
     {
-      "id": "t_movie_gen_6",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_68",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3071,35 @@
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     },
     {
-      "id": "t_movie_gen_9",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_69",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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     },
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-      "id": "t_movie_gen_10",
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+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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     },
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+      "id": "t_movie_gen_70",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3106,35 +3113,35 @@
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     },
     {
-      "id": "t_movie_gen_12",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_70",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "id": "t_movie_gen_13",
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3148,35 +3155,35 @@
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     },
     {
-      "id": "t_movie_gen_15",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_71",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3197,35 @@
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     },
     {
-      "id": "t_movie_gen_18",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_72",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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-      "id": "t_movie_gen_19",
-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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     },
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+      "id": "t_movie_gen_73",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3232,35 +3239,35 @@
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     },
     {
-      "id": "t_movie_gen_21",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "id": "t_movie_gen_22",
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+      "id": "t_movie_gen_74",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3274,35 +3281,35 @@
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     },
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-      "id": "t_movie_gen_24",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_74",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3323,35 @@
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@@ -3358,35 +3365,35 @@
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@@ -3400,35 +3407,35 @@
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3442,35 +3449,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3484,35 +3491,35 @@
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-      "task_id": "t_movie",
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@@ -3526,35 +3533,35 @@
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-      "task_id": "t_movie",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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@@ -3568,35 +3575,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3610,35 +3617,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
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+      "task_id": "t_dining",
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@@ -3652,35 +3659,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_83",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3694,35 +3701,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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@@ -3736,35 +3743,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
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@@ -3778,35 +3785,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3820,35 +3827,35 @@
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@@ -3862,35 +3869,35 @@
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@@ -3904,35 +3911,35 @@
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@@ -3946,35 +3953,35 @@
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@@ -3988,35 +3995,35 @@
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@@ -4030,35 +4037,35 @@
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@@ -4072,35 +4079,35 @@
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@@ -4156,35 +4163,35 @@
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@@ -4198,143 +4205,15445 @@
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+      "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4482,35 +19791,25 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 50.07,
+      "value": 54.89,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_dining_time_1",
+      "id": "gen_c_local_t_movie_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_dining"
+        "t_movie"
       ],
-      "attribute_id": "time",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 59.79,
+      "value": 501.71,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_hard.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_hard.json
index 2681adc..2b7f685 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_hard.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_hard.json
@@ -3,13 +3,22 @@
     "id": "zhang2014-entertainment-planner-running-example_mono_utility_hard",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [mono_utility, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -236,35 +245,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +287,35 @@
       }
     },
     {
-      "id": "t_dining_gen_5",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 20.22,
-        "time": 60.39,
-        "distance": 1564.48,
+        "cost": 10.11,
+        "time": 135.87,
+        "distance": 1662.26,
         "gen_feat_1": 491.41,
         "gen_feat_2": 0.490673,
         "gen_feat_3": 490.61
       }
     },
     {
-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.38,
-        "time": 58.67,
-        "distance": 1626.15,
+        "time": 44.01,
+        "distance": 1219.61,
         "gen_feat_1": 488.5,
         "gen_feat_2": 0.49348,
         "gen_feat_3": 495.75
       }
     },
     {
-      "id": "t_dining_gen_7",
+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +329,35 @@
       }
     },
     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 19.43,
-        "time": 59.64,
-        "distance": 1598.13,
+        "cost": 9.72,
+        "time": 134.2,
+        "distance": 1698.01,
         "gen_feat_1": 503.89,
         "gen_feat_2": 0.506945,
         "gen_feat_3": 508.17
       }
     },
     {
-      "id": "t_dining_gen_9",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 19.64,
-        "time": 60.54,
-        "distance": 1604.33,
+        "time": 45.4,
+        "distance": 1203.25,
         "gen_feat_1": 486.84,
         "gen_feat_2": 0.506628,
         "gen_feat_3": 501.62
       }
     },
     {
-      "id": "t_dining_gen_10",
+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +371,35 @@
       }
     },
     {
-      "id": "t_dining_gen_11",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.68,
-        "time": 59.16,
-        "distance": 1620.42,
+        "cost": 9.84,
+        "time": 133.12,
+        "distance": 1721.7,
         "gen_feat_1": 507.98,
         "gen_feat_2": 0.488942,
         "gen_feat_3": 489.19
       }
     },
     {
-      "id": "t_dining_gen_12",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.74,
-        "time": 59.04,
-        "distance": 1602.16,
+        "time": 44.28,
+        "distance": 1201.62,
         "gen_feat_1": 504.58,
         "gen_feat_2": 0.489389,
         "gen_feat_3": 507.41
       }
     },
     {
-      "id": "t_dining_gen_13",
+      "id": "t_dining_gen_5",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +413,35 @@
       }
     },
     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.72,
-        "time": 58.91,
-        "distance": 1626.35,
+        "cost": 9.86,
+        "time": 132.55,
+        "distance": 1728.0,
         "gen_feat_1": 509.41,
         "gen_feat_2": 0.490291,
         "gen_feat_3": 514.74
       }
     },
     {
-      "id": "t_dining_gen_15",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_6",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.59,
-        "time": 60.67,
-        "distance": 1631.73,
+        "time": 45.5,
+        "distance": 1223.8,
         "gen_feat_1": 493.43,
         "gen_feat_2": 0.498961,
         "gen_feat_3": 492.15
       }
     },
     {
-      "id": "t_dining_gen_16",
+      "id": "t_dining_gen_6",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +455,35 @@
       }
     },
     {
-      "id": "t_dining_gen_17",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_7",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 20.33,
-        "time": 59.99,
-        "distance": 1602.82,
+        "cost": 10.17,
+        "time": 134.98,
+        "distance": 1702.99,
         "gen_feat_1": 513.49,
         "gen_feat_2": 0.510425,
         "gen_feat_3": 506.46
       }
     },
     {
-      "id": "t_dining_gen_18",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_7",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 20.02,
-        "time": 60.13,
-        "distance": 1639.2,
+        "time": 45.1,
+        "distance": 1229.4,
         "gen_feat_1": 498.4,
         "gen_feat_2": 0.499582,
         "gen_feat_3": 504.62
       }
     },
     {
-      "id": "t_dining_gen_19",
+      "id": "t_dining_gen_7",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +497,35 @@
       }
     },
     {
-      "id": "t_dining_gen_20",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_8",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 20.33,
-        "time": 59.96,
-        "distance": 1568.96,
+        "cost": 10.17,
+        "time": 134.92,
+        "distance": 1667.02,
         "gen_feat_1": 488.36,
         "gen_feat_2": 0.514752,
         "gen_feat_3": 513.42
       }
     },
     {
-      "id": "t_dining_gen_21",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_8",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.8,
-        "time": 58.42,
-        "distance": 1555.46,
+        "time": 43.81,
+        "distance": 1166.59,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.486429,
         "gen_feat_3": 488.41
       }
     },
     {
-      "id": "t_dining_gen_22",
+      "id": "t_dining_gen_8",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +539,35 @@
       }
     },
     {
-      "id": "t_dining_gen_23",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_9",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.42,
-        "time": 61.78,
-        "distance": 1622.72,
+        "cost": 9.71,
+        "time": 139.0,
+        "distance": 1724.14,
         "gen_feat_1": 490.83,
         "gen_feat_2": 0.489949,
         "gen_feat_3": 487.73
       }
     },
     {
-      "id": "t_dining_gen_24",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_9",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.71,
-        "time": 59.51,
-        "distance": 1580.85,
+        "time": 44.63,
+        "distance": 1185.64,
         "gen_feat_1": 501.15,
         "gen_feat_2": 0.50297,
         "gen_feat_3": 505.29
       }
     },
     {
-      "id": "t_dining_gen_25",
+      "id": "t_dining_gen_9",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +581,35 @@
       }
     },
     {
-      "id": "t_dining_gen_26",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_10",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 20.55,
-        "time": 58.26,
-        "distance": 1560.85,
+        "cost": 10.27,
+        "time": 131.09,
+        "distance": 1658.41,
         "gen_feat_1": 492.17,
         "gen_feat_2": 0.492399,
         "gen_feat_3": 511.94
       }
     },
     {
-      "id": "t_dining_gen_27",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_10",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 20.48,
-        "time": 58.34,
-        "distance": 1631.2,
+        "time": 43.76,
+        "distance": 1223.4,
         "gen_feat_1": 498.39,
         "gen_feat_2": 0.490821,
         "gen_feat_3": 491.03
       }
     },
     {
-      "id": "t_dining_gen_28",
+      "id": "t_dining_gen_10",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +623,35 @@
       }
     },
     {
-      "id": "t_dining_gen_29",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_11",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.76,
-        "time": 60.3,
-        "distance": 1569.61,
+        "cost": 9.88,
+        "time": 135.68,
+        "distance": 1667.71,
         "gen_feat_1": 490.22,
         "gen_feat_2": 0.496831,
         "gen_feat_3": 496.53
       }
     },
     {
-      "id": "t_dining_gen_30",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_11",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.71,
-        "time": 60.3,
-        "distance": 1623.3,
+        "time": 45.22,
+        "distance": 1217.47,
         "gen_feat_1": 500.21,
         "gen_feat_2": 0.496569,
         "gen_feat_3": 498.99
       }
     },
     {
-      "id": "t_dining_gen_31",
+      "id": "t_dining_gen_11",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +665,35 @@
       }
     },
     {
-      "id": "t_dining_gen_32",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_12",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.8,
-        "time": 59.8,
-        "distance": 1560.3,
+        "cost": 9.9,
+        "time": 134.55,
+        "distance": 1657.82,
         "gen_feat_1": 512.24,
         "gen_feat_2": 0.486102,
         "gen_feat_3": 508.8
       }
     },
     {
-      "id": "t_dining_gen_33",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_12",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.49,
-        "time": 61.12,
-        "distance": 1612.82,
+        "time": 45.84,
+        "distance": 1209.62,
         "gen_feat_1": 506.05,
         "gen_feat_2": 0.504153,
         "gen_feat_3": 510.28
       }
     },
     {
-      "id": "t_dining_gen_34",
+      "id": "t_dining_gen_12",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -698,35 +707,35 @@
       }
     },
     {
-      "id": "t_dining_gen_35",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_13",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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@@ -740,35 +749,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +791,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -824,35 +833,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +875,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +917,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -950,35 +959,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -992,35 +1001,35 @@
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-      "task_id": "t_dining",
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@@ -1034,35 +1043,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1076,35 +1085,35 @@
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-      "task_id": "t_dining",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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@@ -1118,35 +1127,35 @@
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1160,35 +1169,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1202,35 +1211,35 @@
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-      "task_id": "t_dining",
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@@ -1244,35 +1253,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1286,35 +1295,35 @@
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-      "id": "t_dining_gen_77",
-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1328,35 +1337,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1370,35 +1379,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_29",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1412,35 +1421,35 @@
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-      "id": "t_dining_gen_86",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_30",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1454,35 +1463,35 @@
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-      "id": "t_dining_gen_89",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_31",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1496,35 +1505,35 @@
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     {
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_32",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1547,35 @@
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-      "id": "t_dining_gen_95",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_33",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_33",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1589,21 @@
       }
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     {
-      "id": "t_dining_gen_98",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "id": "t_shopping_gen_34",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1617,35 @@
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     },
     {
-      "id": "t_shopping_gen_3",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_35",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "id": "t_shopping_gen_35",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1659,35 @@
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     {
-      "id": "t_shopping_gen_6",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1701,35 @@
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-      "id": "t_shopping_gen_9",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1743,35 @@
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     {
-      "id": "t_shopping_gen_12",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1785,35 @@
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-      "id": "t_shopping_gen_15",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 45.76,
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1827,35 @@
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     {
-      "id": "t_shopping_gen_18",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 46.02,
-        "distance": 1191.93,
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-      "id": "t_shopping_gen_19",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.76,
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-      "id": "t_shopping_gen_20",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1869,35 @@
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     {
-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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-        "distance": 1185.1,
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-      "id": "t_shopping_gen_22",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.23,
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1911,35 @@
       }
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     {
-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 45.29,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 45.68,
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1953,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_27",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.28,
-        "distance": 1176.71,
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-      "id": "t_shopping_gen_28",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_43",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.0,
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-      "id": "t_shopping_gen_29",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1995,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1197.12,
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2037,35 @@
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     },
     {
-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_34",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2079,35 @@
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     {
-      "id": "t_shopping_gen_36",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_45",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_37",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_46",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2112,35 +2121,35 @@
       }
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     {
-      "id": "t_shopping_gen_39",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_46",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1182.79,
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-      "id": "t_shopping_gen_40",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_47",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2163,35 @@
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     {
-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_47",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_43",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_48",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "id": "t_shopping_gen_48",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2205,35 @@
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     {
-      "id": "t_shopping_gen_45",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_48",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_49",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.28,
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-      "id": "t_shopping_gen_47",
+      "id": "t_shopping_gen_49",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2247,28 @@
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     {
-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1204.74,
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-      "task_id": "t_shopping",
-      "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.76,
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@@ -2280,35 +2289,35 @@
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     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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-        "time": 46.17,
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-      "id": "t_shopping_gen_52",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_51",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 44.45,
-        "distance": 1194.92,
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-      "id": "t_shopping_gen_53",
+      "id": "t_shopping_gen_51",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2331,35 @@
       }
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     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.54,
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     {
-      "id": "t_shopping_gen_55",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.24,
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+        "time": 132.71,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2373,35 @@
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     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
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-        "distance": 1227.05,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_53",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.42,
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+        "time": 136.25,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2415,35 @@
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     {
-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.0,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 46.1,
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2457,35 @@
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     },
     {
-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_54",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-        "time": 45.97,
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-      "id": "t_shopping_gen_64",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.03,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2499,35 @@
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     },
     {
-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1220.07,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_56",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.73,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2541,35 @@
       }
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     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 45.99,
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+      "id": "t_shopping_gen_57",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2583,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-      "id": "t_shopping_gen_73",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.64,
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     },
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2625,35 @@
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     },
     {
-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1185.87,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_59",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.39,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2667,35 @@
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     },
     {
-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.07,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_60",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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     },
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+      "id": "t_shopping_gen_60",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2709,35 @@
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     },
     {
-      "id": "t_shopping_gen_81",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 44.4,
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-      "id": "t_shopping_gen_82",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_61",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.81,
-        "distance": 1232.14,
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     },
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-      "id": "t_shopping_gen_83",
+      "id": "t_shopping_gen_61",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2751,35 @@
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     {
-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "id": "t_shopping_gen_85",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2793,35 @@
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     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 45.19,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 46.32,
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+      "id": "t_shopping_gen_63",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2835,35 @@
       }
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     {
-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.09,
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-      "id": "t_shopping_gen_91",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_64",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2877,35 @@
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     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1232.76,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_65",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2919,35 @@
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-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2961,21 @@
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-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2989,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
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       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3022,35 +3031,35 @@
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     },
     {
-      "id": "t_movie_gen_6",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_68",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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-      "id": "t_movie_gen_7",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3073,35 @@
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     },
     {
-      "id": "t_movie_gen_9",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_69",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3106,35 +3115,35 @@
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     },
     {
-      "id": "t_movie_gen_12",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_70",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3148,35 +3157,35 @@
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     },
     {
-      "id": "t_movie_gen_15",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_71",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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-      "id": "t_movie_gen_16",
-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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     },
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       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3199,35 @@
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     },
     {
-      "id": "t_movie_gen_18",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_72",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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     },
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+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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     },
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+      "id": "t_movie_gen_73",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3232,35 +3241,35 @@
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     },
     {
-      "id": "t_movie_gen_21",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "id": "t_movie_gen_22",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_73",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+      "id": "t_movie_gen_74",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3274,35 +3283,35 @@
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     },
     {
-      "id": "t_movie_gen_24",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_74",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3325,35 @@
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     },
     {
-      "id": "t_movie_gen_27",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_75",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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+      "id": "t_movie_gen_76",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3358,35 +3367,35 @@
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     },
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-      "id": "t_movie_gen_30",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_76",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3400,35 +3409,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_77",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "task_id": "t_dining",
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@@ -3484,35 +3493,35 @@
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@@ -3526,35 +3535,35 @@
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@@ -3568,35 +3577,35 @@
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@@ -3610,35 +3619,35 @@
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-      "task_id": "t_movie",
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@@ -3652,35 +3661,35 @@
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@@ -3694,35 +3703,35 @@
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@@ -3736,35 +3745,35 @@
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-      "task_id": "t_movie",
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@@ -3778,35 +3787,35 @@
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3820,35 +3829,35 @@
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@@ -3862,35 +3871,35 @@
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@@ -3904,35 +3913,35 @@
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3946,35 +3955,35 @@
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-      "task_id": "t_movie",
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+      "id": "t_shopping_gen_454",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+        "time": 45.78,
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+      }
+    },
+    {
+      "id": "t_dining_gen_454",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+        "time": 61.21,
+        "distance": 1565.98,
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+        "gen_feat_3": 490.28
+      }
+    },
+    {
+      "id": "t_movie_gen_455",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      }
+    },
+    {
+      "id": "t_shopping_gen_455",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+        "time": 43.71,
+        "distance": 1195.99,
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+      }
+    },
+    {
+      "id": "t_dining_gen_455",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      }
+    },
+    {
+      "id": "t_movie_gen_456",
       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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+        "gen_feat_1": 511.52,
+        "gen_feat_2": 0.508498,
+        "gen_feat_3": 498.28
       }
     },
     {
-      "id": "t_movie_gen_90",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_456",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
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     },
     {
-      "id": "t_movie_gen_91",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_456",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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+        "gen_feat_3": 495.54
       }
     },
     {
-      "id": "t_movie_gen_92",
+      "id": "t_movie_gen_457",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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+        "cost": 10.22,
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+        "gen_feat_2": 0.498684,
+        "gen_feat_3": 491.48
       }
     },
     {
-      "id": "t_movie_gen_93",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_457",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
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-        "time": 133.34,
-        "distance": 1702.93,
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-        "gen_feat_2": 0.502779,
-        "gen_feat_3": 491.18
+        "cost": 19.56,
+        "time": 44.05,
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+        "gen_feat_1": 496.42,
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+        "gen_feat_3": 496.82
       }
     },
     {
-      "id": "t_movie_gen_94",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_457",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
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-        "distance": 1680.7,
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-        "gen_feat_3": 502.47
+        "cost": 19.94,
+        "time": 59.43,
+        "distance": 1607.97,
+        "gen_feat_1": 486.39,
+        "gen_feat_2": 0.496876,
+        "gen_feat_3": 487.75
       }
     },
     {
-      "id": "t_movie_gen_95",
+      "id": "t_movie_gen_458",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 10.19,
-        "time": 136.67,
-        "distance": 1705.0,
-        "gen_feat_1": 488.28,
-        "gen_feat_2": 0.487878,
-        "gen_feat_3": 495.8
+        "cost": 10.02,
+        "time": 131.04,
+        "distance": 1667.37,
+        "gen_feat_1": 511.81,
+        "gen_feat_2": 0.50934,
+        "gen_feat_3": 495.95
       }
     },
     {
-      "id": "t_movie_gen_96",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_458",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
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-        "time": 134.07,
-        "distance": 1659.49,
-        "gen_feat_1": 492.47,
-        "gen_feat_2": 0.492451,
-        "gen_feat_3": 511.78
+        "cost": 19.93,
+        "time": 43.91,
+        "distance": 1191.08,
+        "gen_feat_1": 488.59,
+        "gen_feat_2": 0.510665,
+        "gen_feat_3": 497.35
       }
     },
     {
-      "id": "t_movie_gen_97",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_458",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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-        "time": 134.31,
-        "distance": 1734.61,
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-        "gen_feat_2": 0.488477,
-        "gen_feat_3": 503.93
+        "cost": 20.07,
+        "time": 58.39,
+        "distance": 1569.06,
+        "gen_feat_1": 498.73,
+        "gen_feat_2": 0.505299,
+        "gen_feat_3": 513.0
       }
     },
     {
-      "id": "t_movie_gen_98",
+      "id": "t_movie_gen_459",
       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 10.19,
-        "time": 135.67,
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-        "gen_feat_1": 489.64,
-        "gen_feat_2": 0.491387,
-        "gen_feat_3": 506.86
+        "cost": 9.77,
+        "time": 134.44,
+        "distance": 1659.22,
+        "gen_feat_1": 498.97,
+        "gen_feat_2": 0.49043,
+        "gen_feat_3": 497.71
       }
     },
     {
-      "id": "t_movie_gen_99",
+      "id": "t_shopping_gen_459",
+      "task_id": "t_shopping",
+      "provider_id": "p_seven_night_club",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
+      "features": {
+        "cost": 19.78,
+        "time": 45.97,
+        "distance": 1218.97,
+        "gen_feat_1": 509.17,
+        "gen_feat_2": 0.50674,
+        "gen_feat_3": 508.71
+      }
+    },
+    {
+      "id": "t_dining_gen_459",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 20.2,
+        "time": 59.13,
+        "distance": 1577.0,
+        "gen_feat_1": 501.15,
+        "gen_feat_2": 0.491523,
+        "gen_feat_3": 493.33
+      }
+    },
+    {
+      "id": "t_movie_gen_460",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.06,
+        "time": 134.42,
+        "distance": 1653.26,
+        "gen_feat_1": 485.22,
+        "gen_feat_2": 0.505593,
+        "gen_feat_3": 512.3
+      }
+    },
+    {
+      "id": "t_shopping_gen_460",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 20.28,
+        "time": 44.99,
+        "distance": 1165.06,
+        "gen_feat_1": 507.27,
+        "gen_feat_2": 0.486591,
+        "gen_feat_3": 486.55
+      }
+    },
+    {
+      "id": "t_dining_gen_460",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.82,
+        "time": 59.35,
+        "distance": 1586.39,
+        "gen_feat_1": 505.95,
+        "gen_feat_2": 0.489393,
+        "gen_feat_3": 503.61
+      }
+    },
+    {
+      "id": "t_movie_gen_461",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
+      "features": {
+        "cost": 10.0,
+        "time": 130.97,
+        "distance": 1721.88,
+        "gen_feat_1": 502.54,
+        "gen_feat_2": 0.49302,
+        "gen_feat_3": 485.96
+      }
+    },
+    {
+      "id": "t_shopping_gen_461",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
+      "features": {
+        "cost": 20.01,
+        "time": 45.62,
+        "distance": 1186.44,
+        "gen_feat_1": 488.91,
+        "gen_feat_2": 0.506015,
+        "gen_feat_3": 493.77
+      }
+    },
+    {
+      "id": "t_dining_gen_461",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
+      "features": {
+        "cost": 20.57,
+        "time": 61.57,
+        "distance": 1598.5,
+        "gen_feat_1": 514.13,
+        "gen_feat_2": 0.494189,
+        "gen_feat_3": 514.2
+      }
+    },
+    {
+      "id": "t_movie_gen_462",
       "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
+      "features": {
+        "cost": 10.11,
+        "time": 131.83,
+        "distance": 1724.14,
+        "gen_feat_1": 492.76,
+        "gen_feat_2": 0.49595,
+        "gen_feat_3": 509.76
+      }
+    },
+    {
+      "id": "t_shopping_gen_462",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
-        "cost": 9.79,
-        "time": 133.64,
-        "distance": 1673.71,
-        "gen_feat_1": 505.04,
-        "gen_feat_2": 0.505422,
-        "gen_feat_3": 513.37
+        "cost": 20.43,
+        "time": 44.04,
+        "distance": 1171.7,
+        "gen_feat_1": 486.46,
+        "gen_feat_2": 0.489088,
+        "gen_feat_3": 511.84
+      }
+    },
+    {
+      "id": "t_dining_gen_462",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 19.41,
+        "time": 60.08,
+        "distance": 1601.47,
+        "gen_feat_1": 511.48,
+        "gen_feat_2": 0.506823,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_movie_gen_463",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.03,
+        "time": 131.06,
+        "distance": 1726.37,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.492539,
+        "gen_feat_3": 494.85
+      }
+    },
+    {
+      "id": "t_shopping_gen_463",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 19.96,
+        "time": 44.27,
+        "distance": 1176.85,
+        "gen_feat_1": 506.18,
+        "gen_feat_2": 0.495792,
+        "gen_feat_3": 513.99
+      }
+    },
+    {
+      "id": "t_dining_gen_463",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4455,7 +19766,8 @@
       "scope": "GLOBAL",
       "attribute_id": "distance",
       "op": "<=",
-      "value": 2000
+      "value": 2000,
+      "hard": true
     },
     {
       "id": "c_time_budget",
@@ -4464,7 +19776,7 @@
       "attribute_id": "time",
       "op": "<=",
       "value": 240,
-      "hard": false
+      "hard": true
     },
     {
       "id": "c_cost_budget",
@@ -4473,43 +19785,12 @@
       "attribute_id": "cost",
       "op": "<=",
       "value": 100,
-      "hard": false
-    },
-    {
-      "id": "gen_c_global_cost_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "GLOBAL",
-      "attribute_id": "cost",
-      "op": "<=",
-      "value": 50.07,
-      "hard": true
-    },
-    {
-      "id": "gen_c_local_t_dining_time_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "LOCAL",
-      "tasks": [
-        "t_dining"
-      ],
-      "attribute_id": "time",
-      "op": "<=",
-      "value": 59.79,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_soft.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_soft.json
index ded15cd..b32bb66 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_soft.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_mono_utility_soft.json
@@ -3,13 +3,20 @@
     "id": "zhang2014-entertainment-planner-running-example_mono_utility_soft",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [mono_utility, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "ANY_COMPLETED"
+      }
     }
   },
   "features": [
@@ -236,35 +243,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +285,35 @@
       }
     },
     {
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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         "gen_feat_2": 0.49348,
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-      "id": "t_dining_gen_7",
+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +327,35 @@
       }
     },
     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "id": "t_dining_gen_9",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +369,35 @@
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     {
-      "id": "t_dining_gen_11",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "id": "t_dining_gen_12",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "id": "t_dining_gen_5",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +411,35 @@
       }
     },
     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "id": "t_dining_gen_15",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_6",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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-      "id": "t_dining_gen_16",
+      "id": "t_dining_gen_6",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +453,35 @@
       }
     },
     {
-      "id": "t_dining_gen_17",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_7",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_7",
+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +495,35 @@
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     {
-      "id": "t_dining_gen_20",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_8",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_8",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "id": "t_dining_gen_8",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +537,35 @@
       }
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     {
-      "id": "t_dining_gen_23",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_9",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_9",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +579,35 @@
       }
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     {
-      "id": "t_dining_gen_26",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_10",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_10",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "id": "t_dining_gen_10",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +621,35 @@
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     {
-      "id": "t_dining_gen_29",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_11",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "id": "t_dining_gen_30",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_11",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "id": "t_dining_gen_11",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +663,35 @@
       }
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     {
-      "id": "t_dining_gen_32",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_12",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_12",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -698,35 +705,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_13",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -740,35 +747,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_14",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_14",
+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
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       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +789,35 @@
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-      "id": "t_dining_gen_41",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_15",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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@@ -824,35 +831,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +873,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +915,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -950,35 +957,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -992,35 +999,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1034,35 +1041,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1076,35 +1083,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1118,35 +1125,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1160,35 +1167,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1202,35 +1209,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_25",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1244,35 +1251,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1286,35 +1293,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1328,35 +1335,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_28",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1370,35 +1377,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1412,35 +1419,35 @@
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-      "id": "t_dining_gen_86",
-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1454,35 +1461,35 @@
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-      "id": "t_dining_gen_89",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_31",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1496,35 +1503,35 @@
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     {
-      "id": "t_dining_gen_92",
-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "task_id": "t_shopping",
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+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1545,35 @@
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     {
-      "id": "t_dining_gen_95",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_33",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1587,21 @@
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-      "id": "t_dining_gen_98",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1615,35 @@
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     {
-      "id": "t_shopping_gen_3",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_35",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1657,35 @@
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     {
-      "id": "t_shopping_gen_6",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1699,35 @@
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-      "id": "t_shopping_gen_9",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_37",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "id": "t_shopping_gen_37",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1741,35 @@
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     {
-      "id": "t_shopping_gen_12",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_38",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1783,35 @@
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     {
-      "id": "t_shopping_gen_15",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1825,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1867,35 @@
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-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1909,35 @@
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-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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         "gen_feat_2": 0.507954,
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1951,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_27",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.28,
-        "distance": 1176.71,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1993,35 @@
       }
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     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
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-        "distance": 1197.12,
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       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2035,35 @@
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     {
-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 44.05,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2077,35 @@
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     },
     {
-      "id": "t_shopping_gen_36",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_45",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2112,35 +2119,35 @@
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     {
-      "id": "t_shopping_gen_39",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_46",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2161,35 @@
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     {
-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_47",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2203,35 @@
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     {
-      "id": "t_shopping_gen_45",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_48",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.28,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2245,28 @@
       }
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     {
-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1204.74,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.76,
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+        "time": 137.28,
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@@ -2280,35 +2287,35 @@
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     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.17,
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-      "id": "t_shopping_gen_52",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_51",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 44.45,
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+      "id": "t_shopping_gen_51",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2329,35 @@
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     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_55",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "id": "t_shopping_gen_52",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2371,35 @@
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     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1227.05,
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-      "id": "t_shopping_gen_58",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_53",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.42,
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-      "id": "t_shopping_gen_59",
+      "id": "t_shopping_gen_53",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2413,35 @@
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     {
-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.0,
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-      "id": "t_shopping_gen_61",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_54",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 46.1,
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-      "id": "t_shopping_gen_62",
+      "id": "t_shopping_gen_54",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2455,35 @@
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     {
-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_54",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2497,35 @@
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-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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-        "distance": 1220.07,
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-      "id": "t_shopping_gen_67",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.73,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2539,35 @@
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     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_70",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2581,35 @@
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     {
-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_73",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_58",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.64,
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-      "id": "t_shopping_gen_74",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2623,35 @@
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     },
     {
-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1185.87,
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_59",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.39,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2665,35 @@
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     },
     {
-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_60",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2707,35 @@
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     },
     {
-      "id": "t_shopping_gen_81",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_82",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_61",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.81,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2749,35 @@
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     },
     {
-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1176.63,
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-      "id": "t_shopping_gen_85",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_62",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "id": "t_shopping_gen_86",
+      "id": "t_shopping_gen_62",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2791,35 @@
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     },
     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_88",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_63",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 46.32,
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-      "id": "t_shopping_gen_89",
+      "id": "t_shopping_gen_63",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2833,35 @@
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     {
-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-        "time": 45.09,
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-      "id": "t_shopping_gen_91",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_64",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.28,
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+      "id": "t_shopping_gen_64",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2875,35 @@
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     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1232.76,
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-      "id": "t_shopping_gen_94",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_65",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2917,35 @@
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     {
-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "id": "t_shopping_gen_66",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2959,21 @@
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     {
-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.99,
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-      "id": "t_movie_gen_2",
+      "id": "t_movie_gen_67",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2987,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-        "distance": 1664.29,
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-      "id": "t_movie_gen_4",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_67",
+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
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@@ -3022,35 +3029,35 @@
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3071,35 @@
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@@ -3106,35 +3113,35 @@
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-      "task_id": "t_movie",
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@@ -3148,35 +3155,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3197,35 @@
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-      "task_id": "t_movie",
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@@ -3232,35 +3239,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
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@@ -3274,35 +3281,35 @@
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-      "task_id": "t_movie",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3323,35 @@
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-      "task_id": "t_movie",
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@@ -3358,35 +3365,35 @@
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-      "task_id": "t_movie",
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@@ -3400,35 +3407,35 @@
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3442,35 +3449,35 @@
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@@ -3484,35 +3491,35 @@
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-      "task_id": "t_movie",
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@@ -3526,35 +3533,35 @@
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@@ -3610,35 +3617,35 @@
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@@ -3652,35 +3659,35 @@
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@@ -3694,35 +3701,35 @@
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@@ -3736,35 +3743,35 @@
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@@ -3778,35 +3785,35 @@
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@@ -3820,35 +3827,35 @@
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@@ -3862,35 +3869,35 @@
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@@ -3904,35 +3911,35 @@
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@@ -3946,35 +3953,35 @@
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@@ -3988,35 +3995,35 @@
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@@ -4030,35 +4037,35 @@
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
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@@ -4114,35 +4121,35 @@
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-      "task_id": "t_movie",
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@@ -4156,35 +4163,35 @@
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@@ -4198,143 +4205,15445 @@
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+        "gen_feat_2": 0.498684,
+        "gen_feat_3": 491.48
       }
     },
     {
-      "id": "t_movie_gen_93",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_457",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
-        "cost": 9.91,
-        "time": 133.34,
-        "distance": 1702.93,
-        "gen_feat_1": 488.01,
-        "gen_feat_2": 0.502779,
-        "gen_feat_3": 491.18
+        "cost": 19.56,
+        "time": 44.05,
+        "distance": 1221.95,
+        "gen_feat_1": 496.42,
+        "gen_feat_2": 0.500116,
+        "gen_feat_3": 496.82
       }
     },
     {
-      "id": "t_movie_gen_94",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_457",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
       "features": {
-        "cost": 9.95,
-        "time": 134.1,
-        "distance": 1680.7,
-        "gen_feat_1": 497.7,
-        "gen_feat_2": 0.497436,
-        "gen_feat_3": 502.47
+        "cost": 19.94,
+        "time": 59.43,
+        "distance": 1607.97,
+        "gen_feat_1": 486.39,
+        "gen_feat_2": 0.496876,
+        "gen_feat_3": 487.75
       }
     },
     {
-      "id": "t_movie_gen_95",
+      "id": "t_movie_gen_458",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 10.19,
-        "time": 136.67,
-        "distance": 1705.0,
-        "gen_feat_1": 488.28,
-        "gen_feat_2": 0.487878,
-        "gen_feat_3": 495.8
+        "cost": 10.02,
+        "time": 131.04,
+        "distance": 1667.37,
+        "gen_feat_1": 511.81,
+        "gen_feat_2": 0.50934,
+        "gen_feat_3": 495.95
       }
     },
     {
-      "id": "t_movie_gen_96",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_458",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
-        "cost": 9.9,
-        "time": 134.07,
-        "distance": 1659.49,
-        "gen_feat_1": 492.47,
-        "gen_feat_2": 0.492451,
-        "gen_feat_3": 511.78
+        "cost": 19.93,
+        "time": 43.91,
+        "distance": 1191.08,
+        "gen_feat_1": 488.59,
+        "gen_feat_2": 0.510665,
+        "gen_feat_3": 497.35
       }
     },
     {
-      "id": "t_movie_gen_97",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_458",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
-        "cost": 10.21,
-        "time": 134.31,
-        "distance": 1734.61,
-        "gen_feat_1": 493.2,
-        "gen_feat_2": 0.488477,
-        "gen_feat_3": 503.93
+        "cost": 20.07,
+        "time": 58.39,
+        "distance": 1569.06,
+        "gen_feat_1": 498.73,
+        "gen_feat_2": 0.505299,
+        "gen_feat_3": 513.0
       }
     },
     {
-      "id": "t_movie_gen_98",
+      "id": "t_movie_gen_459",
       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 10.19,
-        "time": 135.67,
-        "distance": 1729.26,
-        "gen_feat_1": 489.64,
-        "gen_feat_2": 0.491387,
-        "gen_feat_3": 506.86
+        "cost": 9.77,
+        "time": 134.44,
+        "distance": 1659.22,
+        "gen_feat_1": 498.97,
+        "gen_feat_2": 0.49043,
+        "gen_feat_3": 497.71
       }
     },
     {
-      "id": "t_movie_gen_99",
+      "id": "t_shopping_gen_459",
+      "task_id": "t_shopping",
+      "provider_id": "p_seven_night_club",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
+      "features": {
+        "cost": 19.78,
+        "time": 45.97,
+        "distance": 1218.97,
+        "gen_feat_1": 509.17,
+        "gen_feat_2": 0.50674,
+        "gen_feat_3": 508.71
+      }
+    },
+    {
+      "id": "t_dining_gen_459",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 20.2,
+        "time": 59.13,
+        "distance": 1577.0,
+        "gen_feat_1": 501.15,
+        "gen_feat_2": 0.491523,
+        "gen_feat_3": 493.33
+      }
+    },
+    {
+      "id": "t_movie_gen_460",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.06,
+        "time": 134.42,
+        "distance": 1653.26,
+        "gen_feat_1": 485.22,
+        "gen_feat_2": 0.505593,
+        "gen_feat_3": 512.3
+      }
+    },
+    {
+      "id": "t_shopping_gen_460",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 20.28,
+        "time": 44.99,
+        "distance": 1165.06,
+        "gen_feat_1": 507.27,
+        "gen_feat_2": 0.486591,
+        "gen_feat_3": 486.55
+      }
+    },
+    {
+      "id": "t_dining_gen_460",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.82,
+        "time": 59.35,
+        "distance": 1586.39,
+        "gen_feat_1": 505.95,
+        "gen_feat_2": 0.489393,
+        "gen_feat_3": 503.61
+      }
+    },
+    {
+      "id": "t_movie_gen_461",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
+      "features": {
+        "cost": 10.0,
+        "time": 130.97,
+        "distance": 1721.88,
+        "gen_feat_1": 502.54,
+        "gen_feat_2": 0.49302,
+        "gen_feat_3": 485.96
+      }
+    },
+    {
+      "id": "t_shopping_gen_461",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
+      "features": {
+        "cost": 20.01,
+        "time": 45.62,
+        "distance": 1186.44,
+        "gen_feat_1": 488.91,
+        "gen_feat_2": 0.506015,
+        "gen_feat_3": 493.77
+      }
+    },
+    {
+      "id": "t_dining_gen_461",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
+      "features": {
+        "cost": 20.57,
+        "time": 61.57,
+        "distance": 1598.5,
+        "gen_feat_1": 514.13,
+        "gen_feat_2": 0.494189,
+        "gen_feat_3": 514.2
+      }
+    },
+    {
+      "id": "t_movie_gen_462",
       "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
+      "features": {
+        "cost": 10.11,
+        "time": 131.83,
+        "distance": 1724.14,
+        "gen_feat_1": 492.76,
+        "gen_feat_2": 0.49595,
+        "gen_feat_3": 509.76
+      }
+    },
+    {
+      "id": "t_shopping_gen_462",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
-        "cost": 9.79,
-        "time": 133.64,
-        "distance": 1673.71,
-        "gen_feat_1": 505.04,
-        "gen_feat_2": 0.505422,
-        "gen_feat_3": 513.37
+        "cost": 20.43,
+        "time": 44.04,
+        "distance": 1171.7,
+        "gen_feat_1": 486.46,
+        "gen_feat_2": 0.489088,
+        "gen_feat_3": 511.84
+      }
+    },
+    {
+      "id": "t_dining_gen_462",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 19.41,
+        "time": 60.08,
+        "distance": 1601.47,
+        "gen_feat_1": 511.48,
+        "gen_feat_2": 0.506823,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_movie_gen_463",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.03,
+        "time": 131.06,
+        "distance": 1726.37,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.492539,
+        "gen_feat_3": 494.85
+      }
+    },
+    {
+      "id": "t_shopping_gen_463",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 19.96,
+        "time": 44.27,
+        "distance": 1176.85,
+        "gen_feat_1": 506.18,
+        "gen_feat_2": 0.495792,
+        "gen_feat_3": 513.99
+      }
+    },
+    {
+      "id": "t_dining_gen_463",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4482,35 +19791,25 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 50.07,
+      "value": 54.89,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_dining_time_1",
+      "id": "gen_c_local_t_movie_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_dining"
+        "t_movie"
       ],
-      "attribute_id": "time",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 59.79,
+      "value": 501.71,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_hard.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_hard.json
index 4e87434..2caf7eb 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_hard.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_hard.json
@@ -3,13 +3,22 @@
     "id": "zhang2014-entertainment-planner-running-example_multi_hard",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [multi, hard]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      },
+      "hard_feasible_witness_found": true,
+      "hard_constraints_from_unconstrained_fallback": false
     }
   },
   "features": [
@@ -236,35 +245,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +287,35 @@
       }
     },
     {
-      "id": "t_dining_gen_5",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 20.22,
-        "time": 60.39,
-        "distance": 1564.48,
+        "cost": 10.11,
+        "time": 135.87,
+        "distance": 1662.26,
         "gen_feat_1": 491.41,
         "gen_feat_2": 0.490673,
         "gen_feat_3": 490.61
       }
     },
     {
-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.38,
-        "time": 58.67,
-        "distance": 1626.15,
+        "time": 44.01,
+        "distance": 1219.61,
         "gen_feat_1": 488.5,
         "gen_feat_2": 0.49348,
         "gen_feat_3": 495.75
       }
     },
     {
-      "id": "t_dining_gen_7",
+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +329,35 @@
       }
     },
     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 19.43,
-        "time": 59.64,
-        "distance": 1598.13,
+        "cost": 9.72,
+        "time": 134.2,
+        "distance": 1698.01,
         "gen_feat_1": 503.89,
         "gen_feat_2": 0.506945,
         "gen_feat_3": 508.17
       }
     },
     {
-      "id": "t_dining_gen_9",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 19.64,
-        "time": 60.54,
-        "distance": 1604.33,
+        "time": 45.4,
+        "distance": 1203.25,
         "gen_feat_1": 486.84,
         "gen_feat_2": 0.506628,
         "gen_feat_3": 501.62
       }
     },
     {
-      "id": "t_dining_gen_10",
+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +371,35 @@
       }
     },
     {
-      "id": "t_dining_gen_11",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.68,
-        "time": 59.16,
-        "distance": 1620.42,
+        "cost": 9.84,
+        "time": 133.12,
+        "distance": 1721.7,
         "gen_feat_1": 507.98,
         "gen_feat_2": 0.488942,
         "gen_feat_3": 489.19
       }
     },
     {
-      "id": "t_dining_gen_12",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.74,
-        "time": 59.04,
-        "distance": 1602.16,
+        "time": 44.28,
+        "distance": 1201.62,
         "gen_feat_1": 504.58,
         "gen_feat_2": 0.489389,
         "gen_feat_3": 507.41
       }
     },
     {
-      "id": "t_dining_gen_13",
+      "id": "t_dining_gen_5",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +413,35 @@
       }
     },
     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.72,
-        "time": 58.91,
-        "distance": 1626.35,
+        "cost": 9.86,
+        "time": 132.55,
+        "distance": 1728.0,
         "gen_feat_1": 509.41,
         "gen_feat_2": 0.490291,
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +455,35 @@
       }
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +497,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +539,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +581,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +623,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +665,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -698,35 +707,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_13",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -740,35 +749,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_14",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "task_id": "t_dining",
+      "id": "t_shopping_gen_14",
+      "task_id": "t_shopping",
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+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +791,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_15",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -824,35 +833,35 @@
       }
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_16",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "task_id": "t_dining",
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+      "task_id": "t_shopping",
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+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +875,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_17",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +917,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "task_id": "t_shopping",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -950,35 +959,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_19",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -992,35 +1001,35 @@
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@@ -1034,35 +1043,35 @@
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -1076,35 +1085,35 @@
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@@ -1118,35 +1127,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1160,35 +1169,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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@@ -1202,35 +1211,35 @@
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@@ -1244,35 +1253,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1286,35 +1295,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1328,35 +1337,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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@@ -1370,35 +1379,35 @@
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-      "task_id": "t_dining",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1412,35 +1421,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1454,35 +1463,35 @@
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-      "task_id": "t_dining",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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@@ -1496,35 +1505,35 @@
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-      "task_id": "t_dining",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "id": "t_shopping_gen_32",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1547,35 @@
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-      "id": "t_dining_gen_95",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_33",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1589,21 @@
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     {
-      "id": "t_dining_gen_98",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1617,35 @@
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     {
-      "id": "t_shopping_gen_3",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
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       "provider_id": "p_gen_3",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1659,35 @@
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     },
     {
-      "id": "t_shopping_gen_6",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1701,35 @@
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     {
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1743,35 @@
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     {
-      "id": "t_shopping_gen_12",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1785,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1827,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1869,35 @@
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     {
-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1911,35 @@
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     {
-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1953,35 @@
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-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1995,35 @@
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     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1197.12,
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2037,35 @@
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-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2079,35 @@
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-      "task_id": "t_shopping",
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       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
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-        "time": 45.5,
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-      "task_id": "t_shopping",
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       "provider_id": "p_gen_1",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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@@ -2112,35 +2121,35 @@
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-      "task_id": "t_shopping",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2163,35 @@
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-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
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       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2205,35 @@
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-      "task_id": "t_shopping",
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       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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       "provider_id": "p_gen_1",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2247,28 @@
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-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1204.74,
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-      "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.76,
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@@ -2280,35 +2289,35 @@
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     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.17,
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-      "id": "t_shopping_gen_52",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2331,35 @@
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     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_55",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2373,35 @@
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     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "id": "t_shopping_gen_58",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_53",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.42,
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+        "time": 136.25,
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-      "id": "t_shopping_gen_59",
+      "id": "t_shopping_gen_53",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2415,35 @@
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     {
-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_54",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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     },
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-      "id": "t_shopping_gen_62",
+      "id": "t_shopping_gen_54",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2457,35 @@
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     },
     {
-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_54",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_64",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_55",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2499,35 @@
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     {
-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_56",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2541,35 @@
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     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2583,35 @@
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-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.64,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2625,35 @@
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-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
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-        "distance": 1185.87,
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-      "id": "t_shopping_gen_76",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_59",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.39,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2667,35 @@
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     {
-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2709,35 @@
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     {
-      "id": "t_shopping_gen_81",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2751,35 @@
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     },
     {
-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "id": "t_shopping_gen_85",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-      "id": "t_shopping_gen_86",
+      "id": "t_shopping_gen_62",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2793,35 @@
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     },
     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2835,35 @@
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     },
     {
-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-      "id": "t_shopping_gen_91",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2877,35 @@
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     },
     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1232.76,
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-      "id": "t_shopping_gen_94",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_65",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2919,35 @@
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     },
     {
-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-      "id": "t_shopping_gen_98",
+      "id": "t_shopping_gen_66",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2961,21 @@
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     {
-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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     },
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-      "id": "t_movie_gen_2",
+      "id": "t_movie_gen_67",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2989,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-        "distance": 1664.29,
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+        "time": 44.44,
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-      "id": "t_movie_gen_4",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_67",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "id": "t_movie_gen_5",
+      "id": "t_movie_gen_68",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3022,35 +3031,35 @@
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     },
     {
-      "id": "t_movie_gen_6",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_68",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3073,35 @@
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     },
     {
-      "id": "t_movie_gen_9",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_69",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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+      "id": "t_movie_gen_70",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3106,35 +3115,35 @@
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     },
     {
-      "id": "t_movie_gen_12",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_70",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "id": "t_movie_gen_13",
-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3148,35 +3157,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_71",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3199,35 @@
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     },
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_72",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3232,35 +3241,35 @@
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     },
     {
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3274,35 +3283,35 @@
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     },
     {
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_74",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3325,35 @@
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     },
     {
-      "id": "t_movie_gen_27",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_75",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3358,35 +3367,35 @@
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     },
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
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+      "task_id": "t_dining",
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@@ -3400,35 +3409,35 @@
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-      "task_id": "t_movie",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3442,35 +3451,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3484,35 +3493,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_79",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3526,35 +3535,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_80",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3568,35 +3577,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3610,35 +3619,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_82",
+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
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+      "task_id": "t_dining",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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@@ -3652,35 +3661,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_83",
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@@ -3736,35 +3745,35 @@
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@@ -3778,35 +3787,35 @@
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@@ -3820,35 +3829,35 @@
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@@ -3862,35 +3871,35 @@
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@@ -3904,35 +3913,35 @@
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@@ -3946,35 +3955,35 @@
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@@ -3988,35 +3997,35 @@
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@@ -4030,35 +4039,35 @@
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@@ -4072,35 +4081,35 @@
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@@ -4156,185 +4165,15487 @@
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+      "provider_id": "p_cinema_banque_scotia",
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       }
     },
     {
-      "id": "t_movie_gen_99",
+      "id": "t_shopping_gen_459",
+      "task_id": "t_shopping",
+      "provider_id": "p_seven_night_club",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
+      "features": {
+        "cost": 19.78,
+        "time": 45.97,
+        "distance": 1218.97,
+        "gen_feat_1": 509.17,
+        "gen_feat_2": 0.50674,
+        "gen_feat_3": 508.71
+      }
+    },
+    {
+      "id": "t_dining_gen_459",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 20.2,
+        "time": 59.13,
+        "distance": 1577.0,
+        "gen_feat_1": 501.15,
+        "gen_feat_2": 0.491523,
+        "gen_feat_3": 493.33
+      }
+    },
+    {
+      "id": "t_movie_gen_460",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.06,
+        "time": 134.42,
+        "distance": 1653.26,
+        "gen_feat_1": 485.22,
+        "gen_feat_2": 0.505593,
+        "gen_feat_3": 512.3
+      }
+    },
+    {
+      "id": "t_shopping_gen_460",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 20.28,
+        "time": 44.99,
+        "distance": 1165.06,
+        "gen_feat_1": 507.27,
+        "gen_feat_2": 0.486591,
+        "gen_feat_3": 486.55
+      }
+    },
+    {
+      "id": "t_dining_gen_460",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.82,
+        "time": 59.35,
+        "distance": 1586.39,
+        "gen_feat_1": 505.95,
+        "gen_feat_2": 0.489393,
+        "gen_feat_3": 503.61
+      }
+    },
+    {
+      "id": "t_movie_gen_461",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_4",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
+      "features": {
+        "cost": 10.0,
+        "time": 130.97,
+        "distance": 1721.88,
+        "gen_feat_1": 502.54,
+        "gen_feat_2": 0.49302,
+        "gen_feat_3": 485.96
+      }
+    },
+    {
+      "id": "t_shopping_gen_461",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_5",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
+      "features": {
+        "cost": 20.01,
+        "time": 45.62,
+        "distance": 1186.44,
+        "gen_feat_1": 488.91,
+        "gen_feat_2": 0.506015,
+        "gen_feat_3": 493.77
+      }
+    },
+    {
+      "id": "t_dining_gen_461",
+      "task_id": "t_dining",
+      "provider_id": "p_rest_autre_saison",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
+      "features": {
+        "cost": 20.57,
+        "time": 61.57,
+        "distance": 1598.5,
+        "gen_feat_1": 514.13,
+        "gen_feat_2": 0.494189,
+        "gen_feat_3": 514.2
+      }
+    },
+    {
+      "id": "t_movie_gen_462",
       "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
+      "features": {
+        "cost": 10.11,
+        "time": 131.83,
+        "distance": 1724.14,
+        "gen_feat_1": 492.76,
+        "gen_feat_2": 0.49595,
+        "gen_feat_3": 509.76
+      }
+    },
+    {
+      "id": "t_shopping_gen_462",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
-        "cost": 9.79,
-        "time": 133.64,
-        "distance": 1673.71,
-        "gen_feat_1": 505.04,
-        "gen_feat_2": 0.505422,
-        "gen_feat_3": 513.37
+        "cost": 20.43,
+        "time": 44.04,
+        "distance": 1171.7,
+        "gen_feat_1": 486.46,
+        "gen_feat_2": 0.489088,
+        "gen_feat_3": 511.84
+      }
+    },
+    {
+      "id": "t_dining_gen_462",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 19.41,
+        "time": 60.08,
+        "distance": 1601.47,
+        "gen_feat_1": 511.48,
+        "gen_feat_2": 0.506823,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_movie_gen_463",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.03,
+        "time": 131.06,
+        "distance": 1726.37,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.492539,
+        "gen_feat_3": 494.85
+      }
+    },
+    {
+      "id": "t_shopping_gen_463",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 19.96,
+        "time": 44.27,
+        "distance": 1176.85,
+        "gen_feat_1": 506.18,
+        "gen_feat_2": 0.495792,
+        "gen_feat_3": 513.99
+      }
+    },
+    {
+      "id": "t_dining_gen_463",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4455,7 +19766,8 @@
       "scope": "GLOBAL",
       "attribute_id": "distance",
       "op": "<=",
-      "value": 2000
+      "value": 2000,
+      "hard": true
     },
     {
       "id": "c_time_budget",
@@ -4464,7 +19776,7 @@
       "attribute_id": "time",
       "op": "<=",
       "value": 240,
-      "hard": false
+      "hard": true
     },
     {
       "id": "c_cost_budget",
@@ -4473,43 +19785,12 @@
       "attribute_id": "cost",
       "op": "<=",
       "value": 100,
-      "hard": false
-    },
-    {
-      "id": "gen_c_global_cost_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "GLOBAL",
-      "attribute_id": "cost",
-      "op": "<=",
-      "value": 50.07,
-      "hard": true
-    },
-    {
-      "id": "gen_c_local_t_dining_time_1",
-      "kind": "ATTRIBUTE_BOUND",
-      "scope": "LOCAL",
-      "tasks": [
-        "t_dining"
-      ],
-      "attribute_id": "time",
-      "op": "<=",
-      "value": 59.79,
       "hard": true
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": true
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_soft.json b/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_soft.json
index dcacb72..23f2606 100644
--- a/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_soft.json
+++ b/experimentation/instances/zhang2014-entertainment-planner-running-example_multi_soft.json
@@ -3,13 +3,20 @@
     "id": "zhang2014-entertainment-planner-running-example_multi_soft",
     "name": "Personal Entertainment Planner (Zhang et al. 2014) [multi, soft]",
     "version": "1.0.0",
-    "created_at": "2026-02-12T08:35:05Z",
+    "created_at": "2026-02-25T15:19:09Z",
     "description": "Modeled from the motivating example in 'Context-aware Generic Service Discovery and Service Composition' (IEEE MobServ 2014).",
     "paper": {
       "title": "Context-aware Generic Service Discovery and Service Composition",
       "authors": "Y. Zhang et al.",
       "year": 2014,
       "doi": "10.1109/MobServ.2014.27"
+    },
+    "experiments": {
+      "expected_feasibility_by_engine": {
+        "many-heuristic": "VALIDATION_ERROR",
+        "minizinc-csp": "VALIDATION_ERROR",
+        "random-search": "VALIDATION_ERROR"
+      }
     }
   },
   "features": [
@@ -236,35 +243,35 @@
       }
     },
     {
-      "id": "t_dining_gen_2",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_2",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.53,
-        "time": 59.13,
-        "distance": 1559.02,
+        "cost": 9.76,
+        "time": 133.04,
+        "distance": 1656.46,
         "gen_feat_1": 498.66,
         "gen_feat_2": 0.488957,
         "gen_feat_3": 503.61
       }
     },
     {
-      "id": "t_dining_gen_3",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_2",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.94,
-        "time": 58.5,
-        "distance": 1591.09,
+        "time": 43.88,
+        "distance": 1193.31,
         "gen_feat_1": 495.96,
         "gen_feat_2": 0.504969,
         "gen_feat_3": 506.77
       }
     },
     {
-      "id": "t_dining_gen_4",
+      "id": "t_dining_gen_2",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -278,35 +285,35 @@
       }
     },
     {
-      "id": "t_dining_gen_5",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_3",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 20.22,
-        "time": 60.39,
-        "distance": 1564.48,
+        "cost": 10.11,
+        "time": 135.87,
+        "distance": 1662.26,
         "gen_feat_1": 491.41,
         "gen_feat_2": 0.490673,
         "gen_feat_3": 490.61
       }
     },
     {
-      "id": "t_dining_gen_6",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_3",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 20.38,
-        "time": 58.67,
-        "distance": 1626.15,
+        "time": 44.01,
+        "distance": 1219.61,
         "gen_feat_1": 488.5,
         "gen_feat_2": 0.49348,
         "gen_feat_3": 495.75
       }
     },
     {
-      "id": "t_dining_gen_7",
+      "id": "t_dining_gen_3",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -320,35 +327,35 @@
       }
     },
     {
-      "id": "t_dining_gen_8",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_4",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 19.43,
-        "time": 59.64,
-        "distance": 1598.13,
+        "cost": 9.72,
+        "time": 134.2,
+        "distance": 1698.01,
         "gen_feat_1": 503.89,
         "gen_feat_2": 0.506945,
         "gen_feat_3": 508.17
       }
     },
     {
-      "id": "t_dining_gen_9",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_4",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 19.64,
-        "time": 60.54,
-        "distance": 1604.33,
+        "time": 45.4,
+        "distance": 1203.25,
         "gen_feat_1": 486.84,
         "gen_feat_2": 0.506628,
         "gen_feat_3": 501.62
       }
     },
     {
-      "id": "t_dining_gen_10",
+      "id": "t_dining_gen_4",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -362,35 +369,35 @@
       }
     },
     {
-      "id": "t_dining_gen_11",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_5",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 19.68,
-        "time": 59.16,
-        "distance": 1620.42,
+        "cost": 9.84,
+        "time": 133.12,
+        "distance": 1721.7,
         "gen_feat_1": 507.98,
         "gen_feat_2": 0.488942,
         "gen_feat_3": 489.19
       }
     },
     {
-      "id": "t_dining_gen_12",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_5",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.74,
-        "time": 59.04,
-        "distance": 1602.16,
+        "time": 44.28,
+        "distance": 1201.62,
         "gen_feat_1": 504.58,
         "gen_feat_2": 0.489389,
         "gen_feat_3": 507.41
       }
     },
     {
-      "id": "t_dining_gen_13",
+      "id": "t_dining_gen_5",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -404,35 +411,35 @@
       }
     },
     {
-      "id": "t_dining_gen_14",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_6",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
-        "cost": 19.72,
-        "time": 58.91,
-        "distance": 1626.35,
+        "cost": 9.86,
+        "time": 132.55,
+        "distance": 1728.0,
         "gen_feat_1": 509.41,
         "gen_feat_2": 0.490291,
         "gen_feat_3": 514.74
       }
     },
     {
-      "id": "t_dining_gen_15",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_6",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
       "features": {
         "cost": 19.59,
-        "time": 60.67,
-        "distance": 1631.73,
+        "time": 45.5,
+        "distance": 1223.8,
         "gen_feat_1": 493.43,
         "gen_feat_2": 0.498961,
         "gen_feat_3": 492.15
       }
     },
     {
-      "id": "t_dining_gen_16",
+      "id": "t_dining_gen_6",
       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -446,35 +453,35 @@
       }
     },
     {
-      "id": "t_dining_gen_17",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_7",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
-        "cost": 20.33,
-        "time": 59.99,
-        "distance": 1602.82,
+        "cost": 10.17,
+        "time": 134.98,
+        "distance": 1702.99,
         "gen_feat_1": 513.49,
         "gen_feat_2": 0.510425,
         "gen_feat_3": 506.46
       }
     },
     {
-      "id": "t_dining_gen_18",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_7",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
       "features": {
         "cost": 20.02,
-        "time": 60.13,
-        "distance": 1639.2,
+        "time": 45.1,
+        "distance": 1229.4,
         "gen_feat_1": 498.4,
         "gen_feat_2": 0.499582,
         "gen_feat_3": 504.62
       }
     },
     {
-      "id": "t_dining_gen_19",
+      "id": "t_dining_gen_7",
       "task_id": "t_dining",
       "provider_id": "p_gen_3",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -488,35 +495,35 @@
       }
     },
     {
-      "id": "t_dining_gen_20",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_8",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
-        "cost": 20.33,
-        "time": 59.96,
-        "distance": 1568.96,
+        "cost": 10.17,
+        "time": 134.92,
+        "distance": 1667.02,
         "gen_feat_1": 488.36,
         "gen_feat_2": 0.514752,
         "gen_feat_3": 513.42
       }
     },
     {
-      "id": "t_dining_gen_21",
-      "task_id": "t_dining",
+      "id": "t_shopping_gen_8",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
       "features": {
         "cost": 19.8,
-        "time": 58.42,
-        "distance": 1555.46,
+        "time": 43.81,
+        "distance": 1166.59,
         "gen_feat_1": 500.1,
         "gen_feat_2": 0.486429,
         "gen_feat_3": 488.41
       }
     },
     {
-      "id": "t_dining_gen_22",
+      "id": "t_dining_gen_8",
       "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -530,35 +537,35 @@
       }
     },
     {
-      "id": "t_dining_gen_23",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -572,35 +579,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -614,35 +621,35 @@
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -656,35 +663,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -698,35 +705,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -740,35 +747,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -782,35 +789,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -824,35 +831,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -866,35 +873,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_17",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -908,35 +915,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -950,35 +957,35 @@
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-      "task_id": "t_dining",
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@@ -992,35 +999,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1034,35 +1041,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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@@ -1076,35 +1083,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1118,35 +1125,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1160,35 +1167,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1202,35 +1209,35 @@
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-      "task_id": "t_dining",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1244,35 +1251,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1286,35 +1293,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1328,35 +1335,35 @@
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-      "task_id": "t_dining",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1370,35 +1377,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1412,35 +1419,35 @@
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-      "task_id": "t_dining",
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       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1454,35 +1461,35 @@
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-      "task_id": "t_dining",
+      "id": "t_movie_gen_31",
+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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+      "task_id": "t_shopping",
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       "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
@@ -1496,35 +1503,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_rest_autre_saison",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
@@ -1538,35 +1545,35 @@
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-      "task_id": "t_dining",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "task_id": "t_shopping",
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-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_seven_night_club)",
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       "task_id": "t_dining",
       "provider_id": "p_local_shopping",
       "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
@@ -1580,21 +1587,21 @@
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-      "id": "t_dining_gen_98",
-      "task_id": "t_dining",
+      "id": "t_movie_gen_34",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1608,35 +1615,35 @@
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-      "id": "t_shopping_gen_3",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_34",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_35",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.9,
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-      "id": "t_shopping_gen_5",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1650,35 +1657,35 @@
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     },
     {
-      "id": "t_shopping_gen_6",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_35",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 44.06,
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-      "id": "t_shopping_gen_7",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_36",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 45.0,
-        "distance": 1183.14,
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-      "id": "t_shopping_gen_8",
+      "id": "t_shopping_gen_36",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1692,35 +1699,35 @@
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     {
-      "id": "t_shopping_gen_9",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_36",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-        "time": 45.49,
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-      "id": "t_shopping_gen_10",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_37",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.86,
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+        "time": 134.59,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1734,35 +1741,35 @@
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     {
-      "id": "t_shopping_gen_12",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_37",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1170.61,
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-      "id": "t_shopping_gen_13",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_38",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 46.21,
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     },
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-      "id": "t_shopping_gen_14",
+      "id": "t_shopping_gen_38",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1776,35 +1783,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_15",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_38",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 44.79,
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-      "id": "t_shopping_gen_16",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_39",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1818,35 +1825,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_18",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_39",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 46.02,
-        "distance": 1191.93,
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-      "id": "t_shopping_gen_19",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_40",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.76,
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+        "time": 134.29,
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     },
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1860,35 +1867,35 @@
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     },
     {
-      "id": "t_shopping_gen_21",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_40",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1185.1,
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-      "id": "t_shopping_gen_22",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_41",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.23,
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     },
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -1902,35 +1909,35 @@
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     {
-      "id": "t_shopping_gen_24",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_41",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
+      "id": "t_movie_gen_42",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -1944,35 +1951,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_27",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_42",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.28,
-        "distance": 1176.71,
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     {
-      "id": "t_shopping_gen_28",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_43",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 45.0,
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+        "time": 135.0,
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     },
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-      "id": "t_shopping_gen_29",
+      "id": "t_shopping_gen_43",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -1986,35 +1993,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_30",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_43",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1197.12,
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-      "id": "t_shopping_gen_31",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_44",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 43.79,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2028,35 +2035,35 @@
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     {
-      "id": "t_shopping_gen_33",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_44",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2070,35 +2077,35 @@
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     {
-      "id": "t_shopping_gen_36",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_45",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_37",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_46",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.26,
-        "distance": 1203.59,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2112,35 +2119,35 @@
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     {
-      "id": "t_shopping_gen_39",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_46",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1182.79,
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-      "id": "t_shopping_gen_40",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_47",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 44.22,
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-      "id": "t_shopping_gen_41",
+      "id": "t_shopping_gen_47",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2154,35 +2161,35 @@
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     {
-      "id": "t_shopping_gen_42",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_47",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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-        "time": 46.06,
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         "gen_feat_2": 0.491429,
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+      "id": "t_shopping_gen_48",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2196,35 +2203,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_45",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_48",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.8,
-        "distance": 1230.3,
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-      "id": "t_shopping_gen_46",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_49",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 44.28,
-        "distance": 1216.64,
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+        "time": 132.85,
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2238,28 +2245,28 @@
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     {
-      "id": "t_shopping_gen_48",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_49",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.94,
-        "distance": 1204.74,
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-      "id": "t_shopping_gen_49",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_50",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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-        "time": 45.76,
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         "gen_feat_3": 488.57
@@ -2280,35 +2287,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_51",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_50",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 19.48,
-        "time": 46.17,
-        "distance": 1186.08,
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         "gen_feat_2": 0.491803,
         "gen_feat_3": 503.47
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-      "id": "t_shopping_gen_52",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_51",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 44.45,
-        "distance": 1194.92,
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     },
     {
-      "id": "t_shopping_gen_53",
+      "id": "t_shopping_gen_51",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2322,35 +2329,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_54",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_51",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.54,
-        "distance": 1223.55,
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     },
     {
-      "id": "t_shopping_gen_55",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_52",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.24,
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+        "time": 132.71,
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     },
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-      "id": "t_shopping_gen_56",
+      "id": "t_shopping_gen_52",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2364,35 +2371,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_57",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_52",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 46.32,
-        "distance": 1227.05,
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-      "id": "t_shopping_gen_58",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_53",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 45.42,
-        "distance": 1231.38,
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+        "time": 136.25,
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-      "id": "t_shopping_gen_59",
+      "id": "t_shopping_gen_53",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2406,35 +2413,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_60",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_53",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-        "time": 46.0,
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-      "id": "t_shopping_gen_61",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 46.1,
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     },
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-      "id": "t_shopping_gen_62",
+      "id": "t_shopping_gen_54",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2448,35 +2455,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_63",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_54",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-        "time": 45.97,
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     {
-      "id": "t_shopping_gen_64",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_55",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
       "features": {
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-        "time": 44.03,
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+        "time": 132.1,
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     },
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-      "id": "t_shopping_gen_65",
+      "id": "t_shopping_gen_55",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2490,35 +2497,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_66",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_55",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "time": 44.73,
-        "distance": 1220.07,
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-      "id": "t_shopping_gen_67",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_56",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 44.73,
-        "distance": 1180.99,
+        "cost": 9.9,
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-      "id": "t_shopping_gen_68",
+      "id": "t_shopping_gen_56",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2532,35 +2539,35 @@
       }
     },
     {
-      "id": "t_shopping_gen_69",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_56",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
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     {
-      "id": "t_shopping_gen_70",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_57",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.99,
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+        "cost": 10.04,
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         "gen_feat_3": 508.37
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     },
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-      "id": "t_shopping_gen_71",
+      "id": "t_shopping_gen_57",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2574,35 +2581,35 @@
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     {
-      "id": "t_shopping_gen_72",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_57",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-      "id": "t_shopping_gen_73",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_58",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-        "time": 45.64,
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+      "id": "t_shopping_gen_58",
       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2616,35 +2623,35 @@
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     {
-      "id": "t_shopping_gen_75",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_58",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-        "distance": 1185.87,
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-      "id": "t_shopping_gen_76",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_59",
+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
       "features": {
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-        "time": 44.39,
-        "distance": 1222.53,
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     {
-      "id": "t_shopping_gen_77",
+      "id": "t_shopping_gen_59",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2658,35 +2665,35 @@
       }
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     {
-      "id": "t_shopping_gen_78",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_59",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
       "features": {
         "cost": 20.16,
-        "time": 46.07,
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-      "id": "t_shopping_gen_79",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_60",
+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
       "features": {
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-        "time": 45.66,
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-      "id": "t_shopping_gen_80",
+      "id": "t_shopping_gen_60",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2700,35 +2707,35 @@
       }
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     {
-      "id": "t_shopping_gen_81",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_60",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
       "features": {
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-      "id": "t_shopping_gen_82",
-      "task_id": "t_shopping",
+      "id": "t_movie_gen_61",
+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2742,35 +2749,35 @@
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     {
-      "id": "t_shopping_gen_84",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_61",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
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-        "distance": 1176.63,
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-      "id": "t_shopping_gen_85",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "id": "t_shopping_gen_62",
       "task_id": "t_shopping",
       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2784,35 +2791,35 @@
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     {
-      "id": "t_shopping_gen_87",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_62",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2826,35 +2833,35 @@
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     {
-      "id": "t_shopping_gen_90",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_63",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_shopping_gen_91",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_1",
-      "name": "Shopping at a nearby venue (Gen p_gen_1)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
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-      "id": "t_shopping_gen_92",
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       "task_id": "t_shopping",
       "provider_id": "p_gen_2",
       "name": "Shopping at a nearby venue (Gen p_gen_2)",
@@ -2868,35 +2875,35 @@
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     },
     {
-      "id": "t_shopping_gen_93",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_64",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Shopping at a nearby venue (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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-      "id": "t_shopping_gen_94",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_gen_4",
-      "name": "Shopping at a nearby venue (Gen p_gen_4)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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       "provider_id": "p_gen_5",
       "name": "Shopping at a nearby venue (Gen p_gen_5)",
@@ -2910,35 +2917,35 @@
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     {
-      "id": "t_shopping_gen_96",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_65",
+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Shopping at a nearby venue (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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-      "id": "t_shopping_gen_97",
-      "task_id": "t_shopping",
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+      "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
-      "name": "Shopping at a nearby venue (Gen p_cinema_banque_scotia)",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "id": "t_shopping_gen_66",
       "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
       "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
@@ -2952,21 +2959,21 @@
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     {
-      "id": "t_shopping_gen_99",
-      "task_id": "t_shopping",
+      "id": "t_dining_gen_66",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Shopping at a nearby venue (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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-      "id": "t_movie_gen_2",
+      "id": "t_movie_gen_67",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -2980,35 +2987,35 @@
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     },
     {
-      "id": "t_movie_gen_3",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_67",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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     },
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-      "id": "t_movie_gen_4",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_67",
+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+      "id": "t_movie_gen_68",
       "task_id": "t_movie",
       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3022,35 +3029,35 @@
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     },
     {
-      "id": "t_movie_gen_6",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_68",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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-      "id": "t_movie_gen_7",
-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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+      "id": "t_movie_gen_69",
       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3064,35 +3071,35 @@
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     },
     {
-      "id": "t_movie_gen_9",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_69",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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     },
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-      "id": "t_movie_gen_10",
-      "task_id": "t_movie",
+      "id": "t_dining_gen_69",
+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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+      "id": "t_movie_gen_70",
       "task_id": "t_movie",
       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3106,35 +3113,35 @@
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     },
     {
-      "id": "t_movie_gen_12",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_70",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-      "id": "t_movie_gen_13",
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+      "task_id": "t_dining",
       "provider_id": "p_gen_3",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_3)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
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+      "id": "t_movie_gen_71",
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       "provider_id": "p_gen_4",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
@@ -3148,35 +3155,35 @@
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     },
     {
-      "id": "t_movie_gen_15",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_71",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_5",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_5)",
+      "name": "Shopping at a nearby venue (Gen p_gen_5)",
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-      "id": "t_movie_gen_16",
-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_rest_autre_saison",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "task_id": "t_movie",
       "provider_id": "p_cinema_banque_scotia",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3190,35 +3197,35 @@
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     },
     {
-      "id": "t_movie_gen_18",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_72",
+      "task_id": "t_shopping",
       "provider_id": "p_seven_night_club",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_seven_night_club)",
+      "name": "Shopping at a nearby venue (Gen p_seven_night_club)",
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-      "task_id": "t_movie",
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+      "task_id": "t_dining",
       "provider_id": "p_local_shopping",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_local_shopping)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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     },
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-      "id": "t_movie_gen_20",
+      "id": "t_movie_gen_73",
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       "provider_id": "p_gen_1",
       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
@@ -3232,35 +3239,35 @@
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     },
     {
-      "id": "t_movie_gen_21",
-      "task_id": "t_movie",
+      "id": "t_shopping_gen_73",
+      "task_id": "t_shopping",
       "provider_id": "p_gen_2",
-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
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-        "distance": 1708.94,
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@@ -3274,35 +3281,35 @@
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3316,35 +3323,35 @@
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@@ -3358,35 +3365,35 @@
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-      "task_id": "t_movie",
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@@ -3400,35 +3407,35 @@
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-      "task_id": "t_movie",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3442,35 +3449,35 @@
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@@ -3484,35 +3491,35 @@
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-      "task_id": "t_movie",
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@@ -3526,35 +3533,35 @@
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@@ -3568,35 +3575,35 @@
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3610,35 +3617,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_2)",
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@@ -3652,35 +3659,35 @@
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-      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_rest_autre_saison)",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_rest_autre_saison)",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3694,35 +3701,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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+      "task_id": "t_dining",
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+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
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@@ -3736,35 +3743,35 @@
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-      "task_id": "t_movie",
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+      "task_id": "t_shopping",
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@@ -3778,35 +3785,35 @@
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-      "task_id": "t_movie",
+      "id": "t_shopping_gen_86",
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3820,35 +3827,35 @@
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@@ -3862,35 +3869,35 @@
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@@ -3904,35 +3911,35 @@
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       "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
@@ -3946,35 +3953,35 @@
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-      "task_id": "t_movie",
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@@ -3988,35 +3995,35 @@
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-      "task_id": "t_movie",
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@@ -4030,35 +4037,35 @@
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@@ -4072,35 +4079,35 @@
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@@ -4114,35 +4121,35 @@
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-      "task_id": "t_movie",
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@@ -4156,35 +4163,35 @@
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@@ -4198,143 +4205,15445 @@
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+      "task_id": "t_shopping",
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+      "task_id": "t_dining",
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+      "task_id": "t_movie",
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+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_4)",
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+      "task_id": "t_shopping",
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+      "task_id": "t_movie",
+      "provider_id": "p_cinema_banque_scotia",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_cinema_banque_scotia)",
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+      "task_id": "t_shopping",
+      "provider_id": "p_seven_night_club",
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+      "id": "t_dining_gen_462",
+      "task_id": "t_dining",
+      "provider_id": "p_local_shopping",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_local_shopping)",
+      "features": {
+        "cost": 19.41,
+        "time": 60.08,
+        "distance": 1601.47,
+        "gen_feat_1": 511.48,
+        "gen_feat_2": 0.506823,
+        "gen_feat_3": 498.55
+      }
+    },
+    {
+      "id": "t_movie_gen_463",
+      "task_id": "t_movie",
+      "provider_id": "p_gen_1",
+      "name": "Watch movie 'The Help' at Cinema Banque Scotia Montreal (Gen p_gen_1)",
+      "features": {
+        "cost": 10.03,
+        "time": 131.06,
+        "distance": 1726.37,
+        "gen_feat_1": 508.91,
+        "gen_feat_2": 0.492539,
+        "gen_feat_3": 494.85
+      }
+    },
+    {
+      "id": "t_shopping_gen_463",
+      "task_id": "t_shopping",
+      "provider_id": "p_gen_2",
+      "name": "Shopping at a nearby venue (Gen p_gen_2)",
+      "features": {
+        "cost": 19.96,
+        "time": 44.27,
+        "distance": 1176.85,
+        "gen_feat_1": 506.18,
+        "gen_feat_2": 0.495792,
+        "gen_feat_3": 513.99
+      }
+    },
+    {
+      "id": "t_dining_gen_463",
+      "task_id": "t_dining",
+      "provider_id": "p_gen_3",
+      "name": "Dinner at Restaurant L’Autre Saison (Gen p_gen_3)",
+      "features": {
+        "cost": 19.93,
+        "time": 59.9,
+        "distance": 1573.07,
+        "gen_feat_1": 510.17,
+        "gen_feat_2": 0.509843,
+        "gen_feat_3": 511.48
       }
     }
   ],
@@ -4482,35 +19791,25 @@
       "scope": "GLOBAL",
       "attribute_id": "cost",
       "op": "<=",
-      "value": 50.07,
+      "value": 54.89,
       "hard": false
     },
     {
-      "id": "gen_c_local_t_dining_time_1",
+      "id": "gen_c_local_t_movie_gen_feat_3_1",
       "kind": "ATTRIBUTE_BOUND",
       "scope": "LOCAL",
       "tasks": [
-        "t_dining"
+        "t_movie"
       ],
-      "attribute_id": "time",
+      "attribute_id": "gen_feat_3",
       "op": "<=",
-      "value": 59.79,
+      "value": 501.71,
       "hard": false
     },
     {
       "id": "gen_c_dep_same_1",
       "kind": "DEPENDENCY",
       "type": "SAME_PROVIDER",
-      "tasks": [
-        "t_dining",
-        "t_shopping"
-      ],
-      "hard": false
-    },
-    {
-      "id": "gen_c_dep_diff_1",
-      "kind": "DEPENDENCY",
-      "type": "DIFFERENT_PROVIDER",
       "tasks": [
         "t_dining",
         "t_movie"
diff --git a/experimentation/report.md b/experimentation/report.md
deleted file mode 100644
index 4ee6589..0000000
--- a/experimentation/report.md
+++ /dev/null
@@ -1,5181 +0,0 @@
-# Experiment Report
-
-**Generated**: 2026-02-12 12:04:10
-
-**Total**: 48 | **Passed**: 46 | **Failed**: 2
-
-![Progress](https://geps.dev/progress/95?dangerColor=d9534f&warningColor=f0ad4e&successColor=5cb85c)
-
-## Summary
-
-| Instance | Obj | Soft | MiniZinc | RandomSearch | ManyHeuristic | Binding Match | Binding Space Size | Result |
-|---|---|---|---|---|---|---|---|---|
-| benatallah2002-selfserv-tra... | MANY | False | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ❌ FAIL (MANY NoSol) |
-| benatallah2002-selfserv-tra... | MANY | True | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| benatallah2002-selfserv-tra... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ DIFF (HEUR) | 1000000 | ✅ PASS (Both Solved) |
-| benatallah2002-selfserv-tra... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| benatallah2002-selfserv-tra... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ RS NoSol | 1000000 | ✅ PASS (MZN Solved, RS NoSol) |
-| benatallah2002-selfserv-tra... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| benatallah2002-selfserv-tra... | MULTI | False | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| benatallah2002-selfserv-tra... | MULTI | True | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| bultan2003-warehouse-exampl... | MANY | False | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| bultan2003-warehouse-exampl... | MANY | True | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| bultan2003-warehouse-exampl... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ MZN NoSol | 1048576 | ✅ PASS (Both Solved) |
-| bultan2003-warehouse-exampl... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1048576 | ✅ PASS (MZN Reject, RS Solve) |
-| bultan2003-warehouse-exampl... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ MZN NoSol | 1048576 | ✅ PASS (Both Solved) |
-| bultan2003-warehouse-exampl... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1048576 | ✅ PASS (MZN Reject, RS Solve) |
-| bultan2003-warehouse-exampl... | MULTI | False | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| bultan2003-warehouse-exampl... | MULTI | True | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| cremaschi2018-textbook-acce... | MANY | False | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| cremaschi2018-textbook-acce... | MANY | True | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| cremaschi2018-textbook-acce... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ DIFF (HEUR) | 1000000 | ✅ PASS (Both Solved) |
-| cremaschi2018-textbook-acce... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| cremaschi2018-textbook-acce... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ RS NoSol | 1000000 | ✅ PASS (MZN Solved, RS NoSol) |
-| cremaschi2018-textbook-acce... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| cremaschi2018-textbook-acce... | MULTI | False | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| cremaschi2018-textbook-acce... | MULTI | True | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| netedu2020-transport-agency... | MANY | False | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| netedu2020-transport-agency... | MANY | True | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| netedu2020-transport-agency... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ DIFF (HEUR) | 1000000 | ✅ PASS (Both Solved) |
-| netedu2020-transport-agency... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| netedu2020-transport-agency... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ⚠️ DIFF (HEUR) | 1000000 | ✅ PASS (Both Solved) |
-| netedu2020-transport-agency... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| netedu2020-transport-agency... | MULTI | False | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| netedu2020-transport-agency... | MULTI | True | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| pautasso2009-restful-ecomme... | MANY | False | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ❌ FAIL (MANY NoSol) |
-| pautasso2009-restful-ecomme... | MANY | True | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| pautasso2009-restful-ecomme... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ✅ No Sol | 1594323 | ✅ PASS (MZN Solved, RS NoSol) |
-| pautasso2009-restful-ecomme... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1594323 | ✅ PASS (MZN Reject, RS Solve) |
-| pautasso2009-restful-ecomme... | MONO | False | 🟢 200 | 🟢 200 | 🔴 422 | ✅ No Sol | 1594323 | ✅ PASS (MZN Solved, RS NoSol) |
-| pautasso2009-restful-ecomme... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1594323 | ✅ PASS (MZN Reject, RS Solve) |
-| pautasso2009-restful-ecomme... | MULTI | False | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| pautasso2009-restful-ecomme... | MULTI | True | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| zhang2014-entertainment-pla... | MANY | True | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| zhang2014-entertainment-pla... | MANY | True | 🔴 422 | 🔴 422 | 🟢 200 | - | - | ✅ PASS (MZN/RS Reject, MANY Solve) |
-| zhang2014-entertainment-pla... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| zhang2014-entertainment-pla... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| zhang2014-entertainment-pla... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| zhang2014-entertainment-pla... | MONO | True | 🔴 422 | 🟢 200 | 🔴 422 | - | 1000000 | ✅ PASS (MZN Reject, RS Solve) |
-| zhang2014-entertainment-pla... | MULTI | True | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-| zhang2014-entertainment-pla... | MULTI | True | 🔴 422 | 🔴 422 | 🔴 422 | - | - | ✅ PASS (All Rejected) |
-
-## Detailed Results
-
-### benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json ![Fail](https://img.shields.io/badge/Result-FAIL-critical)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.12s | See below |
-| **Random Search** | 🔴 422 | 0.11s | See below |
-
-| **Many Heuristic** | 🟢 200 | 0.45s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "many-heuristic",
-    "execution_time_ms": 0.0,
-    "metadata": {
-      "error": "No feasible solution found after 100000 iterations."
-    }
-  }
-}
-```
-
-</details>
-
----
-### benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.11s | See below |
-| **Random Search** | 🔴 422 | 0.12s | See below |
-
-| **Many Heuristic** | 🟢 200 | 25.98s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_car_rental_booking": "t_car_rental_booking_gen_3",
-  "t_flight_booking_international": "t_flight_booking_international_gen_5",
-  "t_attractions_search": "t_attractions_search_gen_4",
-  "t_accommodation_booking": "t_accommodation_booking_gen_2",
-  "t_flight_booking_domestic": "t_flight_booking_domestic_gen_2",
-  "t_travel_insurance": "t_travel_insurance_gen_2"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1292.419,
-  "cost_usd": 1631.925,
-  "availability": 0.9729703676946407,
-  "gen_feat_1": 1348.8470000000002,
-  "gen_feat_2": 0.08071788735113516,
-  "gen_feat_3": 1341.9470000000001
-}
-```
-
-</details>
-
----
-### benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.16s | See below |
-| **Random Search** | 🟢 200 | 0.84s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.10s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Binding Solution**:
-```json
-{
-  "t_attractions_search": "t_attractions_search_gen_2",
-  "t_flight_booking_domestic": "t_flight_booking_domestic_gen_3",
-  "t_flight_booking_international": "t_flight_booking_international_gen_1",
-  "t_travel_insurance": "svc_tis_2",
-  "t_accommodation_booking": "t_accommodation_booking_gen_8",
-  "t_car_rental_booking": "t_car_rental_booking_gen_2"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "availability": 0.29988,
-  "cost_usd": 1601.213,
-  "gen_feat_1": 1357.25,
-  "gen_feat_2": 0.01507608825824881,
-  "gen_feat_3": 1356.785,
-  "latency_ms": 1285.7569999999998
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_car_rental_booking": "svc_crs_2",
-  "t_flight_booking_international": "svc_ifbs_2",
-  "t_attractions_search": "t_attractions_search_gen_2",
-  "t_accommodation_booking": "t_accommodation_booking_gen_8",
-  "t_flight_booking_domestic": "svc_dfbs_2",
-  "t_travel_insurance": "svc_tis_2"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1128.07,
-  "cost_usd": 1682.8200000000002,
-  "availability": 0.98761823424,
-  "gen_feat_1": 1347.81,
-  "gen_feat_2": 0.0866291739183,
-  "gen_feat_3": 1359.16
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.10s | See below |
-| **Random Search** | 🟢 200 | 0.78s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.11s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_car_rental_booking": "t_car_rental_booking_gen_2",
-  "t_flight_booking_international": "t_flight_booking_international_gen_3",
-  "t_attractions_search": "t_attractions_search_gen_6",
-  "t_accommodation_booking": "t_accommodation_booking_gen_6",
-  "t_flight_booking_domestic": "t_flight_booking_domestic_gen_3",
-  "t_travel_insurance": "t_travel_insurance_gen_5"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1339.023,
-  "cost_usd": 1618.713,
-  "availability": 1.0,
-  "gen_feat_1": 1363.038,
-  "gen_feat_2": 0.08515209015332184,
-  "gen_feat_3": 1337.4050000000002
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.21s | See below |
-| **Random Search** | 🟢 200 | 0.94s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.10s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Binding Solution**:
-```json
-{
-  "t_attractions_search": "t_attractions_search_gen_2",
-  "t_flight_booking_domestic": "t_flight_booking_domestic_gen_3",
-  "t_flight_booking_international": "t_flight_booking_international_gen_7",
-  "t_travel_insurance": "svc_tis_2",
-  "t_accommodation_booking": "t_accommodation_booking_gen_8",
-  "t_car_rental_booking": "t_car_rental_booking_gen_8"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "availability": 0.29988,
-  "cost_usd": 1593.3509999999999,
-  "gen_feat_1": 1363.183,
-  "gen_feat_2": 0.015413767884388389,
-  "gen_feat_3": 1354.689,
-  "latency_ms": 1289.883
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "random-search",
-    "execution_time_ms": 0.0,
-    "metadata": {
-      "error": "No feasible solution found after 100000 iterations."
-    }
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### benatallah2002-selfserv-travel-solution-cts-itas_mono_utility_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.11s | See below |
-| **Random Search** | 🟢 200 | 0.79s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.12s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_car_rental_booking": "t_car_rental_booking_gen_8",
-  "t_flight_booking_international": "t_flight_booking_international_gen_7",
-  "t_attractions_search": "t_attractions_search_gen_2",
-  "t_accommodation_booking": "t_accommodation_booking_gen_8",
-  "t_flight_booking_domestic": "t_flight_booking_domestic_gen_3",
-  "t_travel_insurance": "t_travel_insurance_gen_7"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1312.499,
-  "cost_usd": 1587.311,
-  "availability": 0.999776,
-  "gen_feat_1": 1360.3709999999999,
-  "gen_feat_2": 0.08701002110300539,
-  "gen_feat_3": 1353.529
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### benatallah2002-selfserv-travel-solution-cts-itas_multi_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.11s | See below |
-| **Random Search** | 🔴 422 | 0.18s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.10s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### benatallah2002-selfserv-travel-solution-cts-itas_multi_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.10s | See below |
-| **Random Search** | 🔴 422 | 0.10s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.10s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1301.98, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_accommodation_booking_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_accommodation_booking'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 927.58, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_accommodation_booking', 't_attractions_search'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_accommodation_booking', 't_car_rental_booking'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_many_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.31s | See below |
-| **Random Search** | 🔴 422 | 0.28s | See below |
-
-| **Many Heuristic** | 🟢 200 | 5.54s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_payment1": "t_payment1_gen_1",
-  "t_ok": "c_ok_bank_v1",
-  "t_payment2": "c_payment2_bank_v1",
-  "t_bill2": "t_bill2_gen_2",
-  "t_authorize": "t_authorize_gen_2",
-  "t_order2": "t_order2_gen_2",
-  "t_order1": "c_order1_store_v1",
-  "t_bill1": "t_bill1_gen_3",
-  "t_receipt1": "t_receipt1_gen_1",
-  "t_receipt2": "t_receipt2_gen_1"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1323.07,
-  "cost_usd": 0.8200000000000001,
-  "availability": 0.7854076157452324,
-  "gen_feat_1": 8483.310000000001,
-  "gen_feat_2": 2.74254397351582e-13,
-  "gen_feat_3": 8542.39
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_many_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.29s | See below |
-| **Random Search** | 🔴 422 | 0.26s | See below |
-
-| **Many Heuristic** | 🟢 200 | 32.95s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_payment1": "t_payment1_gen_2",
-  "t_ok": "t_ok_gen_2",
-  "t_payment2": "t_payment2_gen_3",
-  "t_bill2": "t_bill2_gen_1",
-  "t_authorize": "c_authorize_store_v1",
-  "t_order2": "t_order2_gen_3",
-  "t_order1": "t_order1_gen_1",
-  "t_bill1": "t_bill1_gen_3",
-  "t_receipt1": "c_receipt1_wh1_v1",
-  "t_receipt2": "t_receipt2_gen_1"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1318.72,
-  "cost_usd": 0.7450000000000001,
-  "availability": 0.636445063004079,
-  "gen_feat_1": 8470.460000000001,
-  "gen_feat_2": 2.403736559720548e-13,
-  "gen_feat_3": 8499.91
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_mono_one_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 24.54s | See below |
-| **Random Search** | 🟢 200 | 1.52s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.29s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "minizinc-csp",
-    "execution_time_ms": 0.0,
-    "metadata": {}
-  },
-  "diagnostics": {
-    "warnings": [
-      "Option 'iterations_count' is not supported by MiniZinc engine"
-    ],
-    "binding_space": {
-      "cardinality": "1048576",
-      "log10_cardinality": 6.020599913279624,
-      "per_task_counts": {
-        "t_authorize": 4,
-        "t_ok": 4,
-        "t_order1": 4,
-        "t_receipt1": 4,
-        "t_bill1": 4,
-        "t_payment1": 4,
-        "t_order2": 4,
-        "t_receipt2": 4,
-        "t_bill2": 4,
-        "t_payment2": 4
-      },
-      "empty_tasks": []
-    }
-  }
-}
-```
-**MiniZinc No-Solution Analysis (based on RS binding)**:
-```json
-{
-  "binding": {
-    "t_payment1": "t_payment1_gen_2",
-    "t_ok": "c_ok_bank_v1",
-    "t_payment2": "c_payment2_bank_v1",
-    "t_bill2": "t_bill2_gen_3",
-    "t_authorize": "t_authorize_gen_1",
-    "t_order2": "c_order2_store_v1",
-    "t_order1": "c_order1_store_v1",
-    "t_bill1": "t_bill1_gen_1",
-    "t_receipt1": "t_receipt1_gen_2",
-    "t_receipt2": "t_receipt2_gen_1"
-  },
-  "aggregated_features": {
-    "latency_ms": 1322.8799999999999,
-    "cost_usd": 0.77,
-    "availability": 0.9686616388059096,
-    "gen_feat_1": 8573.23,
-    "gen_feat_2": 2.6119565004449756e-13,
-    "gen_feat_3": 8567.359999999999
-  },
-  "aggregated_features_scaled": {
-    "latency_ms": 0.26457600000000003,
-    "cost_usd": 0.00077,
-    "availability": 0.9686616388059096,
-    "gen_feat_1": 8.57323,
-    "gen_feat_2": 2.6119565004449756e-13,
-    "gen_feat_3": 8.56736
-  },
-  "aggregated_features_mzn_scaled": {
-    "latency_ms": 0.117954,
-    "cost_usd": 0.00031999999999999997,
-    "availability": 0.9833143761389193,
-    "gen_feat_1": 4.0329999999999995,
-    "gen_feat_2": 4.029334544069859e-06,
-    "gen_feat_3": 4.0354399999999995
-  },
-  "node_qos_mzn_scaled": {
-    "n_root_seq": {
-      "kind": "SEQ",
-      "latency_ms": 0.117954,
-      "cost_usd": 0.00031999999999999997,
-      "availability": 0.9833143761389193,
-      "gen_feat_1": 4.0329999999999995,
-      "gen_feat_2": 4.029334544069859e-06,
-      "gen_feat_3": 4.0354399999999995
-    },
-    "n_authorize": {
-      "kind": "TASK",
-      "latency_ms": 0.011206,
-      "cost_usd": 1e-05,
-      "availability": 0.9942,
-      "gen_feat_1": 0.50618,
-      "gen_feat_2": 0.499392,
-      "gen_feat_3": 0.51416
-    },
-    "n_ok": {
-      "kind": "TASK",
-      "latency_ms": 0.009,
-      "cost_usd": 1e-05,
-      "availability": 0.999,
-      "gen_feat_1": 0.5,
-      "gen_feat_2": 0.5,
-      "gen_feat_3": 0.5
-    },
-    "n_parallel_orders": {
-      "kind": "AND",
-      "latency_ms": 0.097748,
-      "cost_usd": 0.0003,
-      "availability": 0.9900409121039359,
-      "gen_feat_1": 3.02682,
-      "gen_feat_2": 1.6136960720515582e-05,
-      "gen_feat_3": 3.02128
-    },
-    "n_loop_wh1": {
-      "kind": "LOOP",
-      "latency_ms": 0.091972,
-      "cost_usd": 0.00014,
-      "availability": 0.996004,
-      "gen_feat_1": 2.98076,
-      "gen_feat_2": 0.004024886875005128,
-      "gen_feat_3": 3.02128
-    },
-    "n_wh1_iter_seq": {
-      "kind": "SEQ",
-      "latency_ms": 0.045986,
-      "cost_usd": 7e-05,
-      "availability": 0.998,
-      "gen_feat_1": 1.49038,
-      "gen_feat_2": 0.06344199614612649,
-      "gen_feat_3": 1.51064
-    },
-    "n_order1": {
-      "kind": "TASK",
-      "latency_ms": 0.013,
-      "cost_usd": 2e-05,
-      "availability": 0.998,
-      "gen_feat_1": 0.5,
-      "gen_feat_2": 0.5,
-      "gen_feat_3": 0.5
-    },
-    "n_wh1_after_order": {
-      "kind": "AND",
-      "latency_ms": 0.032986,
-      "cost_usd": 4.9999999999999996e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.99038,
-      "gen_feat_2": 0.12688399229225297,
-      "gen_feat_3": 1.01064
-    },
-    "n_receipt1": {
-      "kind": "TASK",
-      "latency_ms": 0.015556,
-      "cost_usd": 1e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.5120800000000001,
-      "gen_feat_2": 0.510897,
-      "gen_feat_3": 0.48677
-    },
-    "n_wh1_billpay": {
-      "kind": "SEQ",
-      "latency_ms": 0.032986,
-      "cost_usd": 3.9999999999999996e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.99038,
-      "gen_feat_2": 0.24835532855400003,
-      "gen_feat_3": 1.01064
-    },
-    "n_bill1": {
-      "kind": "TASK",
-      "latency_ms": 0.014846000000000002,
-      "cost_usd": 1e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.49945999999999996,
-      "gen_feat_2": 0.510726,
-      "gen_feat_3": 0.50743
-    },
-    "n_payment1": {
-      "kind": "TASK",
-      "latency_ms": 0.01814,
-      "cost_usd": 2.9999999999999997e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.49092,
-      "gen_feat_2": 0.486279,
-      "gen_feat_3": 0.5032099999999999
-    },
-    "n_loop_wh2": {
-      "kind": "LOOP",
-      "latency_ms": 0.097748,
-      "cost_usd": 0.00015999999999999999,
-      "availability": 0.9940129880039998,
-      "gen_feat_1": 3.02682,
-      "gen_feat_2": 0.004009295471315581,
-      "gen_feat_3": 3.02028
-    },
-    "n_wh2_iter_seq": {
-      "kind": "SEQ",
-      "latency_ms": 0.048874,
-      "cost_usd": 7.999999999999999e-05,
-      "availability": 0.9970019999999999,
-      "gen_feat_1": 1.51341,
-      "gen_feat_2": 0.0633189977125,
-      "gen_feat_3": 1.51014
-    },
-    "n_order2": {
-      "kind": "TASK",
-      "latency_ms": 0.014,
-      "cost_usd": 2e-05,
-      "availability": 0.998,
-      "gen_feat_1": 0.5,
-      "gen_feat_2": 0.5,
-      "gen_feat_3": 0.5
-    },
-    "n_wh2_after_order": {
-      "kind": "AND",
-      "latency_ms": 0.034874,
-      "cost_usd": 5.9999999999999995e-05,
-      "availability": 0.999,
-      "gen_feat_1": 1.01341,
-      "gen_feat_2": 0.126637995425,
-      "gen_feat_3": 1.01014
-    },
-    "n_receipt2": {
-      "kind": "TASK",
-      "latency_ms": 0.016584,
-      "cost_usd": 1e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.49435,
-      "gen_feat_2": 0.50285,
-      "gen_feat_3": 0.50712
-    },
-    "n_wh2_billpay": {
-      "kind": "SEQ",
-      "latency_ms": 0.034874,
-      "cost_usd": 4.9999999999999996e-05,
-      "availability": 0.999,
-      "gen_feat_1": 1.01341,
-      "gen_feat_2": 0.2518405,
-      "gen_feat_3": 1.01014
-    },
-    "n_bill2": {
-      "kind": "TASK",
-      "latency_ms": 0.015874,
-      "cost_usd": 2e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.5134099999999999,
-      "gen_feat_2": 0.503681,
-      "gen_feat_3": 0.51014
-    },
-    "n_payment2": {
-      "kind": "TASK",
-      "latency_ms": 0.019,
-      "cost_usd": 2.9999999999999997e-05,
-      "availability": 0.999,
-      "gen_feat_1": 0.5,
-      "gen_feat_2": 0.5,
-      "gen_feat_3": 0.5
-    }
-  },
-  "qos_ub": {
-    "latency_ms": 1.5004199999999999,
-    "cost_usd": 1.0,
-    "availability": 1.0,
-    "gen_feat_1": 50.837900000000005,
-    "gen_feat_2": 1.0,
-    "gen_feat_3": 50.860299999999995
-  },
-  "bound_violations": [
-    {
-      "constraint_id": "gen_c_global_latency_ms_1",
-      "scope": "GLOBAL",
-      "attribute_id": "latency_ms",
-      "current": 1322.8799999999999,
-      "op": "<=",
-      "value": 1318.72
-    }
-  ],
-  "mzn_scaled_bound_violations": [
-    {
-      "constraint_id": "gen_c_global_latency_ms_1",
-      "scope": "GLOBAL",
-      "attribute_id": "latency_ms",
-      "current_scaled": 0.26457600000000003,
-      "op": "<=",
-      "value_scaled": 0.263744
-    }
-  ],
-  "mzn_loop_scaled_bound_violations": [],
-  "qos_ub_violations": [],
-  "qos_ub_node_violations": [],
-  "dependency_violations": [],
-  "notes": []
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_payment1": "t_payment1_gen_2",
-  "t_ok": "c_ok_bank_v1",
-  "t_payment2": "c_payment2_bank_v1",
-  "t_bill2": "t_bill2_gen_3",
-  "t_authorize": "t_authorize_gen_1",
-  "t_order2": "c_order2_store_v1",
-  "t_order1": "c_order1_store_v1",
-  "t_bill1": "t_bill1_gen_1",
-  "t_receipt1": "t_receipt1_gen_2",
-  "t_receipt2": "t_receipt2_gen_1"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1322.8799999999999,
-  "cost_usd": 0.77,
-  "availability": 0.9686616388059096,
-  "gen_feat_1": 8573.23,
-  "gen_feat_2": 2.6119565004449756e-13,
-  "gen_feat_3": 8567.359999999999
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_mono_one_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.28s | See below |
-| **Random Search** | 🟢 200 | 1.30s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.25s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_payment1": "t_payment1_gen_2",
-  "t_ok": "t_ok_gen_2",
-  "t_payment2": "c_payment2_bank_v1",
-  "t_bill2": "t_bill2_gen_3",
-  "t_authorize": "t_authorize_gen_3",
-  "t_order2": "c_order2_store_v1",
-  "t_order1": "c_order1_store_v1",
-  "t_bill1": "t_bill1_gen_3",
-  "t_receipt1": "t_receipt1_gen_2",
-  "t_receipt2": "t_receipt2_gen_1"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1324.6999999999998,
-  "cost_usd": 0.77,
-  "availability": 0.9752879401287323,
-  "gen_feat_1": 8568.939999999999,
-  "gen_feat_2": 2.72244988682062e-13,
-  "gen_feat_3": 8564.019999999999
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_mono_utility_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 168.14s | See below |
-| **Random Search** | 🟢 200 | 1.45s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.28s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "minizinc-csp",
-    "execution_time_ms": 0.0,
-    "metadata": {}
-  },
-  "diagnostics": {
-    "warnings": [
-      "Option 'iterations_count' is not supported by MiniZinc engine"
-    ],
-    "binding_space": {
-      "cardinality": "1048576",
-      "log10_cardinality": 6.020599913279624,
-      "per_task_counts": {
-        "t_authorize": 4,
-        "t_ok": 4,
-        "t_order1": 4,
-        "t_receipt1": 4,
-        "t_bill1": 4,
-        "t_payment1": 4,
-        "t_order2": 4,
-        "t_receipt2": 4,
-        "t_bill2": 4,
-        "t_payment2": 4
-      },
-      "empty_tasks": []
-    }
-  }
-}
-```
-**MiniZinc No-Solution Analysis (based on RS binding)**:
-```json
-{
-  "binding": {
-    "t_payment1": "t_payment1_gen_1",
-    "t_ok": "t_ok_gen_2",
-    "t_payment2": "c_payment2_bank_v1",
-    "t_bill2": "t_bill2_gen_3",
-    "t_authorize": "t_authorize_gen_1",
-    "t_order2": "c_order2_store_v1",
-    "t_order1": "c_order1_store_v1",
-    "t_bill1": "t_bill1_gen_1",
-    "t_receipt1": "t_receipt1_gen_3",
-    "t_receipt2": "t_receipt2_gen_1"
-  },
-  "aggregated_features": {
-    "latency_ms": 1324.1999999999998,
-    "cost_usd": 0.8200000000000001,
-    "availability": 0.9696312700759856,
-    "gen_feat_1": 8562.99,
-    "gen_feat_2": 2.3732296002486986e-13,
-    "gen_feat_3": 8563.97
-  },
-  "aggregated_features_scaled": {
-    "latency_ms": 0.26484,
-    "cost_usd": 0.00082,
-    "availability": 0.9696312700759856,
-    "gen_feat_1": 8.56299,
-    "gen_feat_2": 2.3732296002486986e-13,
-    "gen_feat_3": 8.56397
-  },
-  "aggregated_features_mzn_scaled": {
-    "latency_ms": 0.118218,
-    "cost_usd": 0.00033999999999999997,
-    "availability": 0.984298674813733,
-    "gen_feat_1": 4.02276,
-    "gen_feat_2": 3.837127743106285e-06,
-    "gen_feat_3": 4.03355
-  },
-  "node_qos_mzn_scaled": {
-    "n_root_seq": {
-      "kind": "SEQ",
-      "latency_ms": 0.118218,
-      "cost_usd": 0.00033999999999999997,
-      "availability": 0.984298674813733,
-      "gen_feat_1": 4.02276,
-      "gen_feat_2": 3.837127743106285e-06,
-      "gen_feat_3": 4.03355
-    },
-    "n_authorize": {
-      "kind": "TASK",
-      "latency_ms": 0.011206,
-      "cost_usd": 1e-05,
-      "availability": 0.9942,
-      "gen_feat_1": 0.50618,
-      "gen_feat_2": 0.499392,
-      "gen_feat_3": 0.51416
-    },
-    "n_ok": {
-      "kind": "TASK",
-      "latency_ms": 0.009264,
-      "cost_usd": 1e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.48976,
-      "gen_feat_2": 0.491295,
-      "gen_feat_3": 0.49911
-    },
-    "n_parallel_orders": {
-      "kind": "AND",
-      "latency_ms": 0.097748,
-      "cost_usd": 0.00031999999999999997,
-      "availability": 0.9900409121039359,
-      "gen_feat_1": 3.02682,
-      "gen_feat_2": 1.5639480846096922e-05,
-      "gen_feat_3": 3.02028
-    },
-    "n_loop_wh1": {
-      "kind": "LOOP",
-      "latency_ms": 0.092724,
-      "cost_usd": 0.00015999999999999999,
-      "availability": 0.996004,
-      "gen_feat_1": 2.96936,
-      "gen_feat_2": 0.003900805255683762,
-      "gen_feat_3": 3.01508
-    },
-    "n_wh1_iter_seq": {
-      "kind": "SEQ",
-      "latency_ms": 0.046362,
-      "cost_usd": 7.999999999999999e-05,
-      "availability": 0.998,
-      "gen_feat_1": 1.48468,
-      "gen_feat_2": 0.062456426856519434,
-      "gen_feat_3": 1.50754
-    },
-    "n_order1": {
-      "kind": "TASK",
-      "latency_ms": 0.013,
-      "cost_usd": 2e-05,
-      "availability": 0.998,
-      "gen_feat_1": 0.5,
-      "gen_feat_2": 0.5,
-      "gen_feat_3": 0.5
-    },
-    "n_wh1_after_order": {
-      "kind": "AND",
-      "latency_ms": 0.033362,
-      "cost_usd": 5.9999999999999995e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.98468,
-      "gen_feat_2": 0.12491285371303887,
-      "gen_feat_3": 1.00754
-    },
-    "n_receipt1": {
-      "kind": "TASK",
-      "latency_ms": 0.016022,
-      "cost_usd": 2e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.50814,
-      "gen_feat_2": 0.486315,
-      "gen_feat_3": 0.48994
-    },
-    "n_wh1_billpay": {
-      "kind": "SEQ",
-      "latency_ms": 0.033362,
-      "cost_usd": 3.9999999999999996e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.98468,
-      "gen_feat_2": 0.256855852098,
-      "gen_feat_3": 1.00754
-    },
-    "n_bill1": {
-      "kind": "TASK",
-      "latency_ms": 0.014846000000000002,
-      "cost_usd": 1e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.49945999999999996,
-      "gen_feat_2": 0.510726,
-      "gen_feat_3": 0.50743
-    },
-    "n_payment1": {
-      "kind": "TASK",
-      "latency_ms": 0.018516,
-      "cost_usd": 2.9999999999999997e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.48522000000000004,
-      "gen_feat_2": 0.502923,
-      "gen_feat_3": 0.50011
-    },
-    "n_loop_wh2": {
-      "kind": "LOOP",
-      "latency_ms": 0.097748,
-      "cost_usd": 0.00015999999999999999,
-      "availability": 0.9940129880039998,
-      "gen_feat_1": 3.02682,
-      "gen_feat_2": 0.004009295471315581,
-      "gen_feat_3": 3.02028
-    },
-    "n_wh2_iter_seq": {
-      "kind": "SEQ",
-      "latency_ms": 0.048874,
-      "cost_usd": 7.999999999999999e-05,
-      "availability": 0.9970019999999999,
-      "gen_feat_1": 1.51341,
-      "gen_feat_2": 0.0633189977125,
-      "gen_feat_3": 1.51014
-    },
-    "n_order2": {
-      "kind": "TASK",
-      "latency_ms": 0.014,
-      "cost_usd": 2e-05,
-      "availability": 0.998,
-      "gen_feat_1": 0.5,
-      "gen_feat_2": 0.5,
-      "gen_feat_3": 0.5
-    },
-    "n_wh2_after_order": {
-      "kind": "AND",
-      "latency_ms": 0.034874,
-      "cost_usd": 5.9999999999999995e-05,
-      "availability": 0.999,
-      "gen_feat_1": 1.01341,
-      "gen_feat_2": 0.126637995425,
-      "gen_feat_3": 1.01014
-    },
-    "n_receipt2": {
-      "kind": "TASK",
-      "latency_ms": 0.016584,
-      "cost_usd": 1e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.49435,
-      "gen_feat_2": 0.50285,
-      "gen_feat_3": 0.50712
-    },
-    "n_wh2_billpay": {
-      "kind": "SEQ",
-      "latency_ms": 0.034874,
-      "cost_usd": 4.9999999999999996e-05,
-      "availability": 0.999,
-      "gen_feat_1": 1.01341,
-      "gen_feat_2": 0.2518405,
-      "gen_feat_3": 1.01014
-    },
-    "n_bill2": {
-      "kind": "TASK",
-      "latency_ms": 0.015874,
-      "cost_usd": 2e-05,
-      "availability": 1.0,
-      "gen_feat_1": 0.5134099999999999,
-      "gen_feat_2": 0.503681,
-      "gen_feat_3": 0.51014
-    },
-    "n_payment2": {
-      "kind": "TASK",
-      "latency_ms": 0.019,
-      "cost_usd": 2.9999999999999997e-05,
-      "availability": 0.999,
-      "gen_feat_1": 0.5,
-      "gen_feat_2": 0.5,
-      "gen_feat_3": 0.5
-    }
-  },
-  "qos_ub": {
-    "latency_ms": 1.5004199999999999,
-    "cost_usd": 1.0,
-    "availability": 1.0,
-    "gen_feat_1": 50.837900000000005,
-    "gen_feat_2": 1.0,
-    "gen_feat_3": 50.860299999999995
-  },
-  "bound_violations": [
-    {
-      "constraint_id": "gen_c_global_latency_ms_1",
-      "scope": "GLOBAL",
-      "attribute_id": "latency_ms",
-      "current": 1324.1999999999998,
-      "op": "<=",
-      "value": 1318.72
-    }
-  ],
-  "mzn_scaled_bound_violations": [
-    {
-      "constraint_id": "gen_c_global_latency_ms_1",
-      "scope": "GLOBAL",
-      "attribute_id": "latency_ms",
-      "current_scaled": 0.26484,
-      "op": "<=",
-      "value_scaled": 0.263744
-    }
-  ],
-  "mzn_loop_scaled_bound_violations": [],
-  "qos_ub_violations": [],
-  "qos_ub_node_violations": [],
-  "dependency_violations": [],
-  "notes": []
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_payment1": "t_payment1_gen_1",
-  "t_ok": "t_ok_gen_2",
-  "t_payment2": "c_payment2_bank_v1",
-  "t_bill2": "t_bill2_gen_3",
-  "t_authorize": "t_authorize_gen_1",
-  "t_order2": "c_order2_store_v1",
-  "t_order1": "c_order1_store_v1",
-  "t_bill1": "t_bill1_gen_1",
-  "t_receipt1": "t_receipt1_gen_3",
-  "t_receipt2": "t_receipt2_gen_1"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1324.1999999999998,
-  "cost_usd": 0.8200000000000001,
-  "availability": 0.9696312700759856,
-  "gen_feat_1": 8562.99,
-  "gen_feat_2": 2.3732296002486986e-13,
-  "gen_feat_3": 8563.97
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_mono_utility_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.25s | See below |
-| **Random Search** | 🟢 200 | 1.27s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.23s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_payment1": "t_payment1_gen_1",
-  "t_ok": "t_ok_gen_3",
-  "t_payment2": "c_payment2_bank_v1",
-  "t_bill2": "t_bill2_gen_3",
-  "t_authorize": "t_authorize_gen_3",
-  "t_order2": "c_order2_store_v1",
-  "t_order1": "c_order1_store_v1",
-  "t_bill1": "t_bill1_gen_1",
-  "t_receipt1": "t_receipt1_gen_3",
-  "t_receipt2": "t_receipt2_gen_1"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1322.56,
-  "cost_usd": 0.8200000000000001,
-  "availability": 0.9752879401287323,
-  "gen_feat_1": 8591.96,
-  "gen_feat_2": 2.5007884399532516e-13,
-  "gen_feat_3": 8577.419999999998
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_multi_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.26s | See below |
-| **Random Search** | 🔴 422 | 0.24s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.28s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### bultan2003-warehouse-example_multi_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.26s | See below |
-| **Random Search** | 🔴 422 | 0.27s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.25s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1318.72, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_authorize_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_authorize'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_authorize', 't_bill1'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_authorize', 't_payment2'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_many_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.07s | See below |
-| **Random Search** | 🔴 422 | 0.07s | See below |
-
-| **Many Heuristic** | 🟢 200 | 0.98s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_geocoding": "t_geocoding_gen_3",
-  "t_market": "t_market_gen_2",
-  "t_books": "t_books_gen_7",
-  "t_library": "t_library_gen_6",
-  "t_archive": "t_archive_gen_6",
-  "t_transit": "t_transit_gen_6"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1336.0,
-  "cost_usd": 0.0,
-  "availability": 0.9103450359483279,
-  "gen_feat_1": 1990.6499999999999,
-  "gen_feat_2": 0.016177752000527006,
-  "gen_feat_3": 2026.61
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_many_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.07s | See below |
-| **Random Search** | 🔴 422 | 0.07s | See below |
-
-| **Many Heuristic** | 🟢 200 | 14.26s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_geocoding": "t_geocoding_gen_6",
-  "t_market": "t_market_gen_8",
-  "t_books": "t_books_gen_1",
-  "t_library": "t_library_gen_2",
-  "t_archive": "t_archive_gen_5",
-  "t_transit": "t_transit_gen_6"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1332.98,
-  "cost_usd": 0.0,
-  "availability": 0.9099815467393042,
-  "gen_feat_1": 2010.15,
-  "gen_feat_2": 0.01668334975676384,
-  "gen_feat_3": 2003.82
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_mono_one_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.15s | See below |
-| **Random Search** | 🟢 200 | 0.67s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.08s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Binding Solution**:
-```json
-{
-  "t_books": "c_google_books_api",
-  "t_market": "t_market_gen_1",
-  "t_library": "t_library_gen_1",
-  "t_geocoding": "c_google_geocoding_api",
-  "t_transit": "t_transit_gen_8",
-  "t_archive": "t_archive_gen_5"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "availability": 0.0,
-  "cost_usd": 0.0021,
-  "gen_feat_1": 1990.24,
-  "gen_feat_2": 0.0,
-  "gen_feat_3": 2025.06,
-  "latency_ms": 1337.42
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_geocoding": "c_google_geocoding_api",
-  "t_market": "t_market_gen_1",
-  "t_books": "c_google_books_api",
-  "t_library": "t_library_gen_8",
-  "t_archive": "t_archive_gen_5",
-  "t_transit": "t_transit_gen_8"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1344.35,
-  "cost_usd": 0.0021,
-  "availability": 0.9871024462000001,
-  "gen_feat_1": 1971.94,
-  "gen_feat_2": 0.014823842982264065,
-  "gen_feat_3": 2010.23
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_mono_one_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.08s | See below |
-| **Random Search** | 🟢 200 | 0.64s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.11s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_geocoding": "t_geocoding_gen_7",
-  "t_market": "t_market_gen_9",
-  "t_books": "t_books_gen_5",
-  "t_library": "t_library_gen_8",
-  "t_archive": "t_archive_gen_5",
-  "t_transit": "t_transit_gen_8"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1338.19,
-  "cost_usd": 0.0,
-  "availability": 0.997048,
-  "gen_feat_1": 1956.6599999999999,
-  "gen_feat_2": 0.014732872713510647,
-  "gen_feat_3": 2006.8899999999999
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_mono_utility_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.13s | See below |
-| **Random Search** | 🟢 200 | 0.64s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.07s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Binding Solution**:
-```json
-{
-  "t_books": "c_google_books_api",
-  "t_market": "t_market_gen_9",
-  "t_library": "t_library_gen_8",
-  "t_geocoding": "c_google_geocoding_api",
-  "t_transit": "t_transit_gen_8",
-  "t_archive": "t_archive_gen_5"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "availability": 0.0,
-  "cost_usd": 0.0021,
-  "gen_feat_1": 1971.94,
-  "gen_feat_2": 0.0,
-  "gen_feat_3": 2010.23,
-  "latency_ms": 1344.35
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "random-search",
-    "execution_time_ms": 0.0,
-    "metadata": {
-      "error": "No feasible solution found after 100000 iterations."
-    }
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_mono_utility_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.08s | See below |
-| **Random Search** | 🟢 200 | 0.51s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.07s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_geocoding": "t_geocoding_gen_7",
-  "t_market": "t_market_gen_9",
-  "t_books": "t_books_gen_5",
-  "t_library": "t_library_gen_8",
-  "t_archive": "t_archive_gen_5",
-  "t_transit": "t_transit_gen_8"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 1338.19,
-  "cost_usd": 0.0,
-  "availability": 0.997048,
-  "gen_feat_1": 1956.6599999999999,
-  "gen_feat_2": 0.014732872713510647,
-  "gen_feat_3": 2006.8899999999999
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_multi_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.07s | See below |
-| **Random Search** | 🔴 422 | 0.07s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.07s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### cremaschi2018-textbook-access_multi_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.08s | See below |
-| **Random Search** | 🔴 422 | 0.08s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.08s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1357.94, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_archive_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_archive'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_books', 't_geocoding'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_archive', 't_books'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_many_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.05s | See below |
-| **Random Search** | 🔴 422 | 0.07s | See below |
-
-| **Many Heuristic** | 🟢 200 | 0.49s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_2",
-  "t_get_closest_city": "t_get_closest_city_gen_4",
-  "t_make_arrangements": "t_make_arrangements_gen_8",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_4",
-  "t_get_vehicle": "c_get_vehicle",
-  "t_get_transport_company": "t_get_transport_company_gen_6"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 5.99,
-  "gen_feat_1": 2984.35,
-  "gen_feat_2": 0.01670215031980321,
-  "gen_feat_3": 3007.71
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_many_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.06s | See below |
-| **Random Search** | 🔴 422 | 0.06s | See below |
-
-| **Many Heuristic** | 🟢 200 | 4.00s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_1",
-  "t_get_closest_city": "t_get_closest_city_gen_1",
-  "t_make_arrangements": "t_make_arrangements_gen_7",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_4",
-  "t_get_vehicle": "c_get_vehicle",
-  "t_get_transport_company": "t_get_transport_company_gen_7"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 6.029999999999999,
-  "gen_feat_1": 3004.34,
-  "gen_feat_2": 0.017272189035961963,
-  "gen_feat_3": 2985.21
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_mono_one_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.11s | See below |
-| **Random Search** | 🟢 200 | 0.33s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.04s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_2",
-  "t_get_transport_company": "t_get_transport_company_gen_2",
-  "t_get_closest_city": "t_get_closest_city_gen_4",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_7",
-  "t_get_vehicle": "t_get_vehicle_gen_2",
-  "t_make_arrangements": "t_make_arrangements_gen_3"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 5.9,
-  "gen_feat_1": 2979.77,
-  "gen_feat_2": 0.01635108076074883,
-  "gen_feat_3": 2981.58
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_2",
-  "t_get_closest_city": "t_get_closest_city_gen_4",
-  "t_make_arrangements": "t_make_arrangements_gen_3",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_7",
-  "t_get_vehicle": "t_get_vehicle_gen_3",
-  "t_get_transport_company": "t_get_transport_company_gen_3"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 5.9,
-  "gen_feat_1": 2982.92,
-  "gen_feat_2": 0.016539281124164595,
-  "gen_feat_3": 3002.41
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_mono_one_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.05s | See below |
-| **Random Search** | 🟢 200 | 0.28s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.05s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_2",
-  "t_get_closest_city": "t_get_closest_city_gen_3",
-  "t_make_arrangements": "t_make_arrangements_gen_3",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_7",
-  "t_get_vehicle": "t_get_vehicle_gen_6",
-  "t_get_transport_company": "t_get_transport_company_gen_3"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 5.880000000000001,
-  "gen_feat_1": 3024.57,
-  "gen_feat_2": 0.016939678748017963,
-  "gen_feat_3": 3017.37
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_mono_utility_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.10s | See below |
-| **Random Search** | 🟢 200 | 0.34s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.06s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_2",
-  "t_get_transport_company": "t_get_transport_company_gen_2",
-  "t_get_closest_city": "t_get_closest_city_gen_4",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_4",
-  "t_get_vehicle": "t_get_vehicle_gen_2",
-  "t_make_arrangements": "t_make_arrangements_gen_7"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 5.99,
-  "gen_feat_1": 2967.9399999999996,
-  "gen_feat_2": 0.01700032920258602,
-  "gen_feat_3": 2979.2000000000003
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_2",
-  "t_get_closest_city": "t_get_closest_city_gen_4",
-  "t_make_arrangements": "t_make_arrangements_gen_7",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_4",
-  "t_get_vehicle": "t_get_vehicle_gen_2",
-  "t_get_transport_company": "c_get_transport_company"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 6.01,
-  "gen_feat_1": 2962.16,
-  "gen_feat_2": 0.017050594354743806,
-  "gen_feat_3": 2991.7000000000003
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_mono_utility_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.06s | See below |
-| **Random Search** | 🟢 200 | 0.29s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.05s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_get_country_from_location": "t_get_country_from_location_gen_1",
-  "t_get_closest_city": "t_get_closest_city_gen_4",
-  "t_make_arrangements": "t_make_arrangements_gen_7",
-  "t_get_local_subsidiary": "t_get_local_subsidiary_gen_4",
-  "t_get_vehicle": "t_get_vehicle_gen_2",
-  "t_get_transport_company": "t_get_transport_company_gen_5"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 6.02,
-  "gen_feat_1": 2981.29,
-  "gen_feat_2": 0.01678403681377613,
-  "gen_feat_3": 2955.27
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_multi_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.05s | See below |
-| **Random Search** | 🔴 422 | 0.05s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.05s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### netedu2020-transport-agency_multi_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.05s | See below |
-| **Random Search** | 🔴 422 | 0.05s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.05s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 6.01, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_get_closest_city_gen_feat_1_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_get_closest_city'], 'attribute_id': 'gen_feat_1', 'op': '<=', 'value': 497.52, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_get_closest_city', 't_get_country_from_location'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_get_closest_city', 't_make_arrangements'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_many_hard.json ![Fail](https://img.shields.io/badge/Result-FAIL-critical)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.13s | See below |
-| **Random Search** | 🔴 422 | 0.20s | See below |
-
-| **Many Heuristic** | 🟢 200 | 0.61s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "many-heuristic",
-    "execution_time_ms": 0.0,
-    "metadata": {
-      "error": "No feasible solution found after 100000 iterations."
-    }
-  },
-  "diagnostics": {
-    "warnings": [
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[0].hard'",
-        "details": {
-          "path": "constraints[0].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[1].hard'",
-        "details": {
-          "path": "constraints[1].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[2].hard'",
-        "details": {
-          "path": "constraints[2].hard",
-          "value": true
-        }
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_many_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.12s | See below |
-| **Random Search** | 🔴 422 | 0.12s | See below |
-
-| **Many Heuristic** | 🟢 200 | 51.57s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 2060.44, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_charge_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 2060.44, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_charge_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_add_item": "c_shopB_add_item",
-  "t_remove_item": "c_shopB_remove_item",
-  "t_update_shipment": "c_shopA_update_shipment",
-  "t_charge_payment": "t_charge_payment_gen_1",
-  "t_create_order": "t_create_order_gen_1",
-  "t_get_amount": "c_shopB_get_amount",
-  "t_cancel_order": "t_cancel_order_gen_1",
-  "t_request_quote": "c_catalogA_request_quote",
-  "t_checkout": "c_shopA_checkout",
-  "t_get_quote": "c_catalogB_get_quote",
-  "t_refund_payment": "c_paymentA_refund",
-  "t_list_confirmed": "c_shopA_list_confirmed",
-  "t_ship_order": "t_ship_order_gen_1"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 2077.08275,
-  "cost_usd": 0.07035975,
-  "availability": 0.9502990614557736,
-  "gen_feat_1": 6388.60635,
-  "gen_feat_2": 0.0005387195502929085,
-  "gen_feat_3": 6385.5465
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_mono_one_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.20s | See below |
-| **Random Search** | 🟢 200 | 1.58s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.12s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "minizinc-csp",
-    "execution_time_ms": 203.0,
-    "metadata": {
-      "solver": "gecode",
-      "time_sec": 0.203
-    }
-  },
-  "diagnostics": {
-    "warnings": [
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[0].hard'",
-        "details": {
-          "path": "constraints[0].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[1].hard'",
-        "details": {
-          "path": "constraints[1].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[2].hard'",
-        "details": {
-          "path": "constraints[2].hard",
-          "value": true
-        }
-      },
-      "Option 'iterations_count' is not supported by MiniZinc engine"
-    ],
-    "binding_space": {
-      "cardinality": "1594323",
-      "log10_cardinality": 6.202576311355613,
-      "per_task_counts": {
-        "t_create_order": 3,
-        "t_request_quote": 3,
-        "t_get_quote": 3,
-        "t_add_item": 3,
-        "t_remove_item": 3,
-        "t_get_amount": 3,
-        "t_checkout": 3,
-        "t_charge_payment": 3,
-        "t_list_confirmed": 3,
-        "t_ship_order": 3,
-        "t_update_shipment": 3,
-        "t_cancel_order": 3,
-        "t_refund_payment": 3
-      },
-      "empty_tasks": []
-    }
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "random-search",
-    "execution_time_ms": 0.0,
-    "metadata": {
-      "error": "No feasible solution found after 100000 iterations."
-    }
-  },
-  "diagnostics": {
-    "warnings": [
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[0].hard'",
-        "details": {
-          "path": "constraints[0].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[1].hard'",
-        "details": {
-          "path": "constraints[1].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[2].hard'",
-        "details": {
-          "path": "constraints[2].hard",
-          "value": true
-        }
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_mono_one_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.12s | See below |
-| **Random Search** | 🟢 200 | 1.24s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.13s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1866.14, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1866.14, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_add_item": "c_shopB_add_item",
-  "t_remove_item": "c_shopB_remove_item",
-  "t_update_shipment": "t_update_shipment_gen_1",
-  "t_charge_payment": "c_paymentB_charge",
-  "t_create_order": "c_shopB_create_order",
-  "t_get_amount": "c_shopA_get_amount",
-  "t_cancel_order": "c_shopB_cancel_order",
-  "t_request_quote": "c_catalogB_request_quote",
-  "t_checkout": "c_shopB_checkout",
-  "t_get_quote": "c_catalogB_get_quote",
-  "t_refund_payment": "c_paymentB_refund",
-  "t_list_confirmed": "c_shopA_list_confirmed",
-  "t_ship_order": "c_shopB_ship_order"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 2416.13235,
-  "cost_usd": 0.06203,
-  "availability": 0.9858829983915486,
-  "gen_feat_1": 6379.902550000001,
-  "gen_feat_2": 0.000535443476956177,
-  "gen_feat_3": 6384.24595
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_mono_utility_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🟢 200 | 2.23s | See below |
-| **Random Search** | 🟢 200 | 1.48s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.10s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "minizinc-csp",
-    "execution_time_ms": 0.0,
-    "metadata": {}
-  },
-  "diagnostics": {
-    "warnings": [
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[0].hard'",
-        "details": {
-          "path": "constraints[0].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[1].hard'",
-        "details": {
-          "path": "constraints[1].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[2].hard'",
-        "details": {
-          "path": "constraints[2].hard",
-          "value": true
-        }
-      },
-      "Option 'iterations_count' is not supported by MiniZinc engine"
-    ],
-    "binding_space": {
-      "cardinality": "1594323",
-      "log10_cardinality": 6.202576311355613,
-      "per_task_counts": {
-        "t_create_order": 3,
-        "t_request_quote": 3,
-        "t_get_quote": 3,
-        "t_add_item": 3,
-        "t_remove_item": 3,
-        "t_get_amount": 3,
-        "t_checkout": 3,
-        "t_charge_payment": 3,
-        "t_list_confirmed": 3,
-        "t_ship_order": 3,
-        "t_update_shipment": 3,
-        "t_cancel_order": 3,
-        "t_refund_payment": 3
-      },
-      "empty_tasks": []
-    }
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "solutions": [],
-  "provenance": {
-    "engine_id": "random-search",
-    "execution_time_ms": 0.0,
-    "metadata": {
-      "error": "No feasible solution found after 100000 iterations."
-    }
-  },
-  "diagnostics": {
-    "warnings": [
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[0].hard'",
-        "details": {
-          "path": "constraints[0].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[1].hard'",
-        "details": {
-          "path": "constraints[1].hard",
-          "value": true
-        }
-      },
-      {
-        "code": "DEFAULT_APPLIED",
-        "message": "Applied default for 'constraints[2].hard'",
-        "details": {
-          "path": "constraints[2].hard",
-          "value": true
-        }
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_mono_utility_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.12s | See below |
-| **Random Search** | 🟢 200 | 1.35s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.13s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 2259.82, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_charge_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 2259.82, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_charge_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_add_item": "c_shopB_add_item",
-  "t_remove_item": "c_shopB_remove_item",
-  "t_update_shipment": "t_update_shipment_gen_1",
-  "t_charge_payment": "c_paymentB_charge",
-  "t_create_order": "c_shopB_create_order",
-  "t_get_amount": "c_shopB_get_amount",
-  "t_cancel_order": "c_shopB_cancel_order",
-  "t_request_quote": "c_catalogB_request_quote",
-  "t_checkout": "c_shopB_checkout",
-  "t_get_quote": "t_get_quote_gen_1",
-  "t_refund_payment": "c_paymentA_refund",
-  "t_list_confirmed": "c_shopB_list_confirmed",
-  "t_ship_order": "c_shopB_ship_order"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "latency_ms": 2295.14235,
-  "cost_usd": 0.060565249999999994,
-  "availability": 0.9874786465055755,
-  "gen_feat_1": 6379.083550000001,
-  "gen_feat_2": 0.0005341248336548596,
-  "gen_feat_3": 6368.70595
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_multi_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `False`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.12s | See below |
-| **Random Search** | 🔴 422 | 0.14s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.17s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### pautasso2009-restful-ecommerce_multi_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.12s | See below |
-| **Random Search** | 🔴 422 | 0.13s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.13s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1866.14, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_shop_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_create_order', 't_add_item', 't_remove_item', 't_get_amount', 't_checkout', 't_list_confirmed', 't_ship_order', 't_update_shipment', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_catalog_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_request_quote', 't_get_quote'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'bind_payment_mono_provider', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_charge_payment', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_latency_ms_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'latency_ms', 'op': '<=', 'value': 1866.14, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_add_item_cost_usd_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_add_item'], 'attribute_id': 'cost_usd', 'op': '<=', 'value': 0.0, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_add_item', 't_cancel_order'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_add_item', 't_refund_payment'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_many_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.31s | See below |
-| **Random Search** | 🔴 422 | 0.23s | See below |
-
-| **Many Heuristic** | 🟢 200 | 0.73s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_movie": "t_movie_gen_49",
-  "t_shopping": "t_shopping_gen_54",
-  "t_dining": "t_dining_gen_34"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 49.34,
-  "time": 238.23,
-  "distance": 1742.48,
-  "gen_feat_1": 1484.24,
-  "gen_feat_2": 0.127654928693071,
-  "gen_feat_3": 1470.56
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_many_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MANY`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.21s | See below |
-| **Random Search** | 🔴 422 | 0.20s | See below |
-
-| **Many Heuristic** | 🟢 200 | 4.78s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Binding Solution**:
-```json
-{
-  "t_movie": "t_movie_gen_75",
-  "t_shopping": "t_shopping_gen_8",
-  "t_dining": "t_dining_gen_70"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 49.37,
-  "time": 238.52999999999997,
-  "distance": 1745.08,
-  "gen_feat_1": 1485.29,
-  "gen_feat_2": 0.12341086186106176,
-  "gen_feat_3": 1512.32
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_mono_one_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.18s | See below |
-| **Random Search** | 🟢 200 | 0.60s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.18s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_movie": "t_movie_gen_92",
-  "t_shopping": "t_shopping_gen_47",
-  "t_dining": "t_dining_gen_90"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 48.709999999999994,
-  "time": 241.07,
-  "distance": 1744.3,
-  "gen_feat_1": 1491.76,
-  "gen_feat_2": 0.12513207296593443,
-  "gen_feat_3": 1502.74
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_mono_one_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.19s | See below |
-| **Random Search** | 🟢 200 | 0.55s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.20s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_movie": "t_movie_gen_52",
-  "t_shopping": "t_shopping_gen_47",
-  "t_dining": "t_dining_gen_23"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 48.56,
-  "time": 239.94,
-  "distance": 1679.04,
-  "gen_feat_1": 1481.8,
-  "gen_feat_2": 0.1218078120493523,
-  "gen_feat_3": 1473.95
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_mono_utility_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.21s | See below |
-| **Random Search** | 🟢 200 | 0.66s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.22s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_movie": "t_movie_gen_34",
-  "t_shopping": "t_shopping_gen_37",
-  "t_dining": "t_dining_gen_44"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 49.980000000000004,
-  "time": 235.16,
-  "distance": 1663.09,
-  "gen_feat_1": 1494.8,
-  "gen_feat_2": 0.13385978664750445,
-  "gen_feat_3": 1494.98
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_mono_utility_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MONO`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.32s | See below |
-| **Random Search** | 🟢 200 | 0.59s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.20s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Binding Solution**:
-```json
-{
-  "t_movie": "t_movie_gen_88",
-  "t_shopping": "t_shopping_gen_8",
-  "t_dining": "t_dining_gen_44"
-}
-```
-**Aggregated Features**:
-```json
-{
-  "cost": 50.160000000000004,
-  "time": 233.43,
-  "distance": 1660.59,
-  "gen_feat_1": 1472.47,
-  "gen_feat_2": 0.1343835796979068,
-  "gen_feat_3": 1496.0100000000002
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_multi_hard.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.18s | See below |
-| **Random Search** | 🔴 422 | 0.23s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.18s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
-### zhang2014-entertainment-planner-running-example_multi_soft.json ![Pass](https://img.shields.io/badge/Result-PASS-success)
-
-- **Objective**: `MULTI`
-- **Soft Constraints**: `True`
-
-| Engine | Status | Time | Result |
-|---|---|---|---|
-| **MiniZinc CSP** | 🔴 422 | 0.19s | See below |
-| **Random Search** | 🔴 422 | 0.19s | See below |
-
-| **Many Heuristic** | 🔴 422 | 0.20s | See below |
-
-<details><summary><b>View Engine Responses</b></summary>
-
-#### MiniZinc CSP
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.0\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.1\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.2\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.3\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.4\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.5\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}, {\"constraint_id\": null, \"message\": \"{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas\", \"path\": \"constraints.6\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_within_2km', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'distance', 'op': '<=', 'value': 2000, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.0",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_time_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'time', 'op': '<=', 'value': 240, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.1",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'c_cost_budget', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 100, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.2",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_global_cost_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'GLOBAL', 'attribute_id': 'cost', 'op': '<=', 'value': 50.07, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.3",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_local_t_dining_time_1', 'kind': 'ATTRIBUTE_BOUND', 'scope': 'LOCAL', 'tasks': ['t_dining'], 'attribute_id': 'time', 'op': '<=', 'value': 59.79, 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.4",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_same_1', 'kind': 'DEPENDENCY', 'type': 'SAME_PROVIDER', 'tasks': ['t_dining', 't_shopping'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.5",
-        "constraint_id": null
-      },
-      {
-        "code": "specialization_schema_invalid",
-        "message": "{'id': 'gen_c_dep_diff_1', 'kind': 'DEPENDENCY', 'type': 'DIFFERENT_PROVIDER', 'tasks': ['t_dining', 't_movie'], 'hard': False} is not valid under any of the given schemas",
-        "path": "constraints.6",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Random Search
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MONO' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MONO' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
----
-#### Many Heuristic
-**Response**:
-```json
-{
-  "detail": {
-    "error": "The problem has semantic or logical errors: [{\"constraint_id\": null, \"message\": \"'MANY' was expected\", \"path\": \"objective.type\", \"code\": \"specialization_schema_invalid\", \"stage\": \"specialization_schema\", \"penalty\": null, \"description\": null}]",
-    "violations": [
-      {
-        "code": "specialization_schema_invalid",
-        "message": "'MANY' was expected",
-        "path": "objective.type",
-        "constraint_id": null
-      }
-    ]
-  }
-}
-```
-
-</details>
-
----
diff --git a/experimentation/reports/run_experiments_20260225T165913Z.json b/experimentation/reports/run_experiments_20260225T165913Z.json
new file mode 100644
index 0000000..6bf28e9
--- /dev/null
+++ b/experimentation/reports/run_experiments_20260225T165913Z.json
@@ -0,0 +1,2887 @@
+{
+  "started_at": "2026-02-25T15:19:16.787433+00:00",
+  "finished_at": "2026-02-25T16:59:13.703948+00:00",
+  "duration_seconds": 5996.885473789007,
+  "base_url": "http://localhost:8000",
+  "instances_dir": "/Users/franciscojaviercaverolopez/Workspace/OpenBinding/experimentation/instances",
+  "engines": [
+    "many-heuristic",
+    "minizinc-csp",
+    "random-search"
+  ],
+  "totals": {
+    "cases": 144,
+    "pass": 144,
+    "fail": 0
+  },
+  "results": [
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json",
+      "engine_id": "many-heuristic",
+      "category": "many",
+      "objective_type": "MANY",
+      "all_constraints_hard": true,
+      "expected_to_solve": true,
+      "expected_behavior": "ANY_COMPLETED",
+      "passed_expectation": true,
+      "outcome": "no_solution_tolerated",
+      "status_code": 200,
+      "job_id": "82f9ffc3-064d-40f1-99aa-2785bfbddf49",
+      "poll_count": 0,
+      "elapsed_seconds": 0.19001617497997358,
+      "reason": "Completed with UNKNOWN; tolerated by expectation policy",
+      "feasibility": "UNKNOWN",
+      "violation_codes": []
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json",
+      "engine_id": "minizinc-csp",
+      "category": "many",
+      "objective_type": "MANY",
+      "all_constraints_hard": true,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.1655544390087016,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_many_hard.json",
+      "engine_id": "random-search",
+      "category": "many",
+      "objective_type": "MANY",
+      "all_constraints_hard": true,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.33020122995367274,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json",
+      "engine_id": "many-heuristic",
+      "category": "many",
+      "objective_type": "MANY",
+      "all_constraints_hard": false,
+      "expected_to_solve": true,
+      "expected_behavior": "ANY_COMPLETED",
+      "passed_expectation": true,
+      "outcome": "solved",
+      "status_code": 200,
+      "job_id": "47613433-c8b5-4428-ab3a-16a00edd8f6b",
+      "poll_count": 0,
+      "elapsed_seconds": 0.7493221469921991,
+      "reason": "Completed with FEASIBLE result",
+      "feasibility": "FEASIBLE",
+      "violation_codes": []
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json",
+      "engine_id": "minizinc-csp",
+      "category": "many",
+      "objective_type": "MANY",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.1450065349927172,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_many_soft.json",
+      "engine_id": "random-search",
+      "category": "many",
+      "objective_type": "MANY",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.1556508659850806,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json",
+      "engine_id": "many-heuristic",
+      "category": "mono_hard",
+      "objective_type": "MONO",
+      "all_constraints_hard": true,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.1407591620227322,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json",
+      "engine_id": "minizinc-csp",
+      "category": "mono_hard",
+      "objective_type": "MONO",
+      "all_constraints_hard": true,
+      "expected_to_solve": true,
+      "expected_behavior": "FEASIBLE",
+      "passed_expectation": true,
+      "outcome": "solved",
+      "status_code": 202,
+      "job_id": "ea5e32b5-7d05-44d8-b8e4-aeb0ae559b6e",
+      "poll_count": 2,
+      "elapsed_seconds": 2.1989342279848643,
+      "reason": "Completed with expected FEASIBLE result",
+      "feasibility": "FEASIBLE",
+      "violation_codes": []
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_mono_one_hard.json",
+      "engine_id": "random-search",
+      "category": "mono_hard",
+      "objective_type": "MONO",
+      "all_constraints_hard": true,
+      "expected_to_solve": true,
+      "expected_behavior": "ANY_COMPLETED",
+      "passed_expectation": true,
+      "outcome": "no_solution_tolerated",
+      "status_code": 200,
+      "job_id": "26ce6b8d-fc24-4e62-9e0f-599eccebffdb",
+      "poll_count": 0,
+      "elapsed_seconds": 0.24243661196669564,
+      "reason": "Completed with UNKNOWN; tolerated by expectation policy",
+      "feasibility": "UNKNOWN",
+      "violation_codes": []
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft.json",
+      "engine_id": "many-heuristic",
+      "category": "mono_soft",
+      "objective_type": "MONO",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.24394269502954558,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "benatallah2002-selfserv-travel-solution-cts-itas_mono_one_soft.json",
+      "engine_id": "minizinc-csp",
+      "category": "mono_soft",
+      "objective_type": "MONO",
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+      "instance": "netedu2020-transport-agency_many_hard.json",
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+      "instance": "netedu2020-transport-agency_many_hard.json",
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+      "engine_id": "many-heuristic",
+      "category": "mono_soft",
+      "objective_type": "MONO",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 1.2265643749851733,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_mono_utility_soft.json",
+      "engine_id": "minizinc-csp",
+      "category": "mono_soft",
+      "objective_type": "MONO",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 1.2137288090307266,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_mono_utility_soft.json",
+      "engine_id": "random-search",
+      "category": "mono_soft",
+      "objective_type": "MONO",
+      "all_constraints_hard": false,
+      "expected_to_solve": true,
+      "expected_behavior": "ANY_COMPLETED",
+      "passed_expectation": true,
+      "outcome": "solved",
+      "status_code": 200,
+      "job_id": "ae22e239-fe9f-4331-8c9d-4d389ccf53ff",
+      "poll_count": 0,
+      "elapsed_seconds": 1.1810705300304107,
+      "reason": "Completed with FEASIBLE result",
+      "feasibility": "FEASIBLE",
+      "violation_codes": []
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_multi_hard.json",
+      "engine_id": "many-heuristic",
+      "category": "multi",
+      "objective_type": "MULTI",
+      "all_constraints_hard": true,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 1.0829871830064803,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_multi_hard.json",
+      "engine_id": "minizinc-csp",
+      "category": "multi",
+      "objective_type": "MULTI",
+      "all_constraints_hard": true,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.9564823569962755,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_multi_hard.json",
+      "engine_id": "random-search",
+      "category": "multi",
+      "objective_type": "MULTI",
+      "all_constraints_hard": true,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.9374495630036108,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_multi_soft.json",
+      "engine_id": "many-heuristic",
+      "category": "multi",
+      "objective_type": "MULTI",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.9548692969838157,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_multi_soft.json",
+      "engine_id": "minizinc-csp",
+      "category": "multi",
+      "objective_type": "MULTI",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.9093989380053245,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid",
+        "specialization_schema_invalid"
+      ]
+    },
+    {
+      "instance": "zhang2014-entertainment-planner-running-example_multi_soft.json",
+      "engine_id": "random-search",
+      "category": "multi",
+      "objective_type": "MULTI",
+      "all_constraints_hard": false,
+      "expected_to_solve": false,
+      "expected_behavior": "VALIDATION_ERROR",
+      "passed_expectation": true,
+      "outcome": "validation_error",
+      "status_code": 422,
+      "job_id": null,
+      "poll_count": 0,
+      "elapsed_seconds": 0.9769108889740892,
+      "reason": "Validation failure as expected",
+      "feasibility": null,
+      "violation_codes": [
+        "specialization_schema_invalid"
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/experimentation/reports/run_experiments_20260225T165913Z.md b/experimentation/reports/run_experiments_20260225T165913Z.md
new file mode 100644
index 0000000..115770f
--- /dev/null
+++ b/experimentation/reports/run_experiments_20260225T165913Z.md
@@ -0,0 +1,37 @@
+# OpenBinding Experiment Report
+
+- Started (UTC): 2026-02-25T15:19:16.787433+00:00
+- Finished (UTC): 2026-02-25T16:59:13.703948+00:00
+- Duration: 1h 39m 57s
+- Gateway: http://localhost:8000
+- Engines: many-heuristic, minizinc-csp, random-search
+- Instances dir: /Users/franciscojaviercaverolopez/Workspace/OpenBinding/experimentation/instances
+
+## Summary
+
+- Total cases: 144
+- Passed expectations: 144
+- Failed expectations: 0
+
+## Matrix (engine × category)
+
+```
+Engine         | Category  | Total | Pass | Fail | Pass %
+---------------+-----------+-------+------+------+-------
+many-heuristic | many      | 12    | 12   | 0    | 100.0 
+many-heuristic | mono_hard | 12    | 12   | 0    | 100.0 
+many-heuristic | mono_soft | 12    | 12   | 0    | 100.0 
+many-heuristic | multi     | 12    | 12   | 0    | 100.0 
+minizinc-csp   | many      | 12    | 12   | 0    | 100.0 
+minizinc-csp   | mono_hard | 12    | 12   | 0    | 100.0 
+minizinc-csp   | mono_soft | 12    | 12   | 0    | 100.0 
+minizinc-csp   | multi     | 12    | 12   | 0    | 100.0 
+random-search  | many      | 12    | 12   | 0    | 100.0 
+random-search  | mono_hard | 12    | 12   | 0    | 100.0 
+random-search  | mono_soft | 12    | 12   | 0    | 100.0 
+random-search  | multi     | 12    | 12   | 0    | 100.0 
+```
+
+## Top expectation mismatches
+
+All expectations were satisfied ✅
diff --git a/experimentation/run_experiments.py b/experimentation/run_experiments.py
index 837f875..a914f2a 100644
--- a/experimentation/run_experiments.py
+++ b/experimentation/run_experiments.py
@@ -1,996 +1,1094 @@
-import os
+#!/usr/bin/env python3
+
+from __future__ import annotations
+
+import argparse
 import json
-import requests
+import sys
 import time
-from typing import Dict, Any, Tuple, Optional, List
-from tqdm import tqdm
-from termcolor import colored
-
-GATEWAY_URL = "http://localhost:8000/v1/solve"
-INSTANCES_DIR = "experimentation/instances"
-REPORT_FILE = "experimentation/report.md"
-DEFAULT_ITERATIONS_COUNT = 100000
-MANY_ITERATIONS_COUNT = 100000
-
-def build_selected_candidate_by_task(
-    selection: Dict[str, str],
-    candidates_by_id: Dict[str, Dict[str, Any]],
-) -> Dict[str, Dict[str, Any]]:
-    selected: Dict[str, Dict[str, Any]] = {}
-    for task_id, cand_id in selection.items():
-        cand = candidates_by_id.get(cand_id)
-        if cand is not None:
-            selected[task_id] = cand
-    return selected
-
-
-def _default_for(feature_id: str, features: Dict[str, Any], agg_policies: Dict[str, Any]) -> float:
-    policy = agg_policies.get(feature_id, {})
-    if "neutral" in policy and isinstance(policy.get("neutral"), (int, float)):
-        return float(policy["neutral"])
-    feat = features.get(feature_id, {})
-    direction = feat.get("direction")
-    vr = feat.get("valid_range") or {}
-    if direction == "maximize" or direction == "MAXIMIZE":
-        return float(vr.get("min", 0.0))
-    return float(vr.get("max", 0.0))
-
-
-def _agg_fn(fn: Optional[str], values: List[float], weights: Optional[List[float]] = None) -> float:
-    if not values:
-        return 0.0
-
-    fn_lower = fn.lower() if fn else ""
-
-    if fn_lower in ("weighted_sum",):
-        w = weights or [1.0] * len(values)
-        return sum(v * w_i for v, w_i in zip(values, w))
-    if fn_lower == "sum":
-        if weights is not None:
-            return sum(v * w_i for v, w_i in zip(values, weights))
-        return sum(values)
-    if fn_lower == "product":
-        res = 1.0
-        for v in values:
-            res *= v
-        return res
-    if fn_lower == "max":
-        return max(values)
-    if fn_lower == "min":
-        return min(values)
-    return sum(values)
-
-
-def _compose_value(
-    node: Dict[str, Any],
-    feature_id: str,
-    selected_candidate_by_task: Dict[str, Dict[str, Any]],
-    features: Dict[str, Any],
-    agg_policies: Dict[str, Any],
-) -> float:
-    kind = node.get("kind")
-    policy = agg_policies.get(feature_id, {})
-    compose = policy.get("compose", {})
-
-    if kind == "TASK":
-        task_id = node.get("task_id")
-        cand = selected_candidate_by_task.get(task_id)
-        if cand is None:
-            return _default_for(feature_id, features, agg_policies)
-        return float((cand.get("features", {}) or {}).get(feature_id, _default_for(feature_id, features, agg_policies)))
-
-    if kind in ("SEQ", "AND"):
-        children = node.get("children", []) or []
-        values = [_compose_value(c, feature_id, selected_candidate_by_task, features, agg_policies) for c in children]
-        fn = compose.get("seq" if kind == "SEQ" else "and", {}).get("fn")
-        return _agg_fn(fn or ("sum" if kind == "SEQ" else "max"), values)
-
-    if kind == "XOR":
-        branches = node.get("branches", []) or []
-        values = [_compose_value(b.get("child", {}), feature_id, selected_candidate_by_task, features, agg_policies) for b in branches]
-        probs = [float(b.get("p", 0.0)) for b in branches]
-        fn = compose.get("xor", {}).get("fn")
-        if fn in (None, "sum", "weighted_sum", "scaled_sum", "SCALED_SUM"):
-            return _agg_fn("weighted_sum", values, probs)
-        return _agg_fn(fn, values)
-
-    if kind == "LOOP":
-        body = node.get("body", {}) or {}
-        body_val = _compose_value(body, feature_id, selected_candidate_by_task, features, agg_policies)
-        fn = compose.get("loop", {}).get("fn")
-        iterations = node.get("expected_iterations")
-        if iterations is None:
-            bounds = node.get("bounds") or {}
-            iterations = bounds.get("max", 1)
-        c = float(iterations)
-
-        fn_lower = (fn or "sum").lower()
-        if "product" in fn_lower:
-            return float(body_val ** c)
-        if "sum" in fn_lower or "wsum" in fn_lower or "scale" in fn_lower:
-            return float(body_val * c)
-        return body_val
-
-    return _default_for(feature_id, features, agg_policies)
-
-
-def _compose_value_mzn(
-    node: Dict[str, Any],
-    feature_id: str,
-    selected_candidate_by_task: Dict[str, Dict[str, Any]],
-    features: Dict[str, Any],
-    agg_policies: Dict[str, Any],
-) -> float:
-    kind = node.get("kind")
-    policy = agg_policies.get(feature_id, {})
-    compose = policy.get("compose", {})
-
-    if kind == "TASK":
-        task_id = node.get("task_id")
-        cand = selected_candidate_by_task.get(task_id)
-        if cand is None:
-            return _default_for(feature_id, features, agg_policies)
-        return float((cand.get("features", {}) or {}).get(feature_id, _default_for(feature_id, features, agg_policies)))
-
-    if kind in ("SEQ", "AND"):
-        children = node.get("children", []) or []
-        values = [_compose_value_mzn(c, feature_id, selected_candidate_by_task, features, agg_policies) for c in children]
-        fn = compose.get("seq" if kind == "SEQ" else "and", {}).get("fn")
-        return _agg_fn(fn or ("sum" if kind == "SEQ" else "max"), values)
-
-    if kind == "XOR":
-        branches = node.get("branches", []) or []
-        values = [
-            _compose_value_mzn(b.get("child", {}), feature_id, selected_candidate_by_task, features, agg_policies)
-            for b in branches
-        ]
-        probs = [float(b.get("p", 0.0)) for b in branches]
-        fn = compose.get("xor", {}).get("fn")
-        if fn in (None, "sum", "weighted_sum", "scaled_sum", "SCALED_SUM"):
-            return _agg_fn("weighted_sum", values, probs)
-        return _agg_fn(fn, values)
-
-    if kind == "LOOP":
-        body = node.get("body", {}) or {}
-        body_val = _compose_value_mzn(body, feature_id, selected_candidate_by_task, features, agg_policies)
-        fn = compose.get("loop", {}).get("fn")
-        iterations = node.get("expected_iterations")
-        if iterations is None:
-            bounds = node.get("bounds") or {}
-            mn = float(bounds.get("min", 0))
-            mx = float(bounds.get("max", 0))
-            if mx > 0 or mn > 0:
-                iterations = (mn + mx) / 2.0
-        if iterations is None:
-            iterations = node.get("iterations")
-        c = float(round(iterations or 1))
-
-        fn_lower = (fn or "sum").lower()
-        if "product" in fn_lower:
-            return float(body_val ** c)
-        if "sum" in fn_lower or "wsum" in fn_lower or "scale" in fn_lower:
-            return float(body_val * c)
-        return body_val
-
-    return _default_for(feature_id, features, agg_policies)
-
-
-def compute_aggregated_qos(
-    composition_root: Dict[str, Any],
-    features: Dict[str, Any],
-    selected_candidate_by_task: Dict[str, Dict[str, Any]],
-    agg_policies: Dict[str, Any],
-) -> Dict[str, float]:
-    aggregated_qos: Dict[str, float] = {}
-    for fid in features.keys():
-        aggregated_qos[fid] = _compose_value(
-            composition_root,
-            fid,
-            selected_candidate_by_task,
-            features,
-            agg_policies,
+from dataclasses import asdict, dataclass, field
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any, Dict, List, Optional, Tuple
+
+import requests
+
+
+ROOT_DIR = Path(__file__).resolve().parents[1]
+DEFAULT_INSTANCES_DIR = ROOT_DIR / "experimentation" / "instances"
+DEFAULT_REPORTS_DIR = ROOT_DIR / "experimentation" / "reports"
+
+EXPECTED_BEHAVIOR_VALUES = {
+    "FEASIBLE",
+    "INFEASIBLE",
+    "UNKNOWN",
+    "ANY_COMPLETED",
+    "VALIDATION_ERROR",
+}
+
+
+@dataclass
+class InstanceMeta:
+    path: Path
+    objective_type: str
+    all_constraints_hard: bool
+    has_soft_constraints: bool
+    category: str
+    expected_by_engine: Dict[str, str] = field(default_factory=dict)
+
+
+@dataclass
+class CaseResult:
+    instance: str
+    engine_id: str
+    category: str
+    objective_type: str
+    all_constraints_hard: bool
+    expected_to_solve: bool
+    expected_behavior: str
+    passed_expectation: bool
+    outcome: str
+    status_code: Optional[int] = None
+    job_id: Optional[str] = None
+    poll_count: int = 0
+    elapsed_seconds: float = 0.0
+    reason: str = ""
+    feasibility: Optional[str] = None
+    violation_codes: List[str] = field(default_factory=list)
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description=(
+            "Run all experimentation instances against active gateway solvers using "
+            "POST /v1/solve (async) and validate routing expectations."
         )
-    return aggregated_qos
-
-
-def compute_aggregated_qos_mzn(
-    composition_root: Dict[str, Any],
-    features: Dict[str, Any],
-    selected_candidate_by_task: Dict[str, Dict[str, Any]],
-    agg_policies: Dict[str, Any],
-) -> Dict[str, float]:
-    aggregated_qos: Dict[str, float] = {}
-    for fid in features.keys():
-        aggregated_qos[fid] = _compose_value_mzn(
-            composition_root,
-            fid,
-            selected_candidate_by_task,
-            features,
-            agg_policies,
+    )
+    parser.add_argument(
+        "--base-url",
+        default="http://localhost:8000",
+        help="Gateway base URL (default: http://localhost:8000)",
+    )
+    parser.add_argument(
+        "--instances-dir",
+        default=str(DEFAULT_INSTANCES_DIR),
+        help=f"Directory with instance JSON files (default: {DEFAULT_INSTANCES_DIR})",
+    )
+    parser.add_argument(
+        "--solve-timeout",
+        type=int,
+        default=900,
+        help="Read timeout in seconds for /v1/solve request (default: 900)",
+    )
+    parser.add_argument(
+        "--max-poll-seconds",
+        type=int,
+        default=10800,
+        help="Maximum total polling time in seconds per job (default: 10800)",
+    )
+    parser.add_argument(
+        "--poll-response-timeout",
+        type=int,
+        default=30,
+        help="Read timeout in seconds for each /v1/jobs/{job_id} poll (default: 30)",
+    )
+    parser.add_argument(
+        "--poll-interval",
+        type=float,
+        default=2.0,
+        help="Polling interval in seconds (default: 2.0)",
+    )
+    parser.add_argument(
+        "--connect-timeout",
+        type=float,
+        default=10.0,
+        help="HTTP connect timeout in seconds for all requests (default: 10)",
+    )
+    parser.add_argument(
+        "--engines",
+        default="",
+        help="Optional comma-separated list of engine IDs to test instead of active engines",
+    )
+    parser.add_argument(
+        "--reports-dir",
+        default=str(DEFAULT_REPORTS_DIR),
+        help=f"Directory where JSON/Markdown reports will be written (default: {DEFAULT_REPORTS_DIR})",
+    )
+    parser.add_argument(
+        "--max-cases",
+        type=int,
+        default=0,
+        help="Optional limit of total instance×engine runs (0 means all)",
+    )
+    parser.add_argument(
+        "--no-color",
+        action="store_true",
+        help="Disable ANSI color output",
+    )
+    return parser.parse_args()
+
+
+def now_utc_iso() -> str:
+    return datetime.now(timezone.utc).isoformat()
+
+
+def load_instances(instances_dir: Path) -> List[InstanceMeta]:
+    if not instances_dir.exists() or not instances_dir.is_dir():
+        raise FileNotFoundError(f"Instances directory not found: {instances_dir}")
+
+    files = sorted(instances_dir.glob("*.json"))
+    if not files:
+        raise RuntimeError(f"No JSON files found in {instances_dir}")
+
+    instances: List[InstanceMeta] = []
+    for path in files:
+        with path.open("r", encoding="utf-8") as handle:
+            payload = json.load(handle)
+
+        objective = str(payload.get("objective", {}).get("type", "")).upper()
+        constraints = payload.get("constraints", []) or []
+        expected_by_engine = _extract_expected_by_engine(payload)
+        has_soft_constraints = any(
+            c.get("hard", True) is False
+            for c in constraints
+            if isinstance(c, dict)
         )
-    return aggregated_qos
-
-
-def compute_node_qos_mzn(
-    node: Dict[str, Any],
-    features: Dict[str, Any],
-    selected_candidate_by_task: Dict[str, Dict[str, Any]],
-    agg_policies: Dict[str, Any],
-) -> Dict[str, Dict[str, float]]:
-    results: Dict[str, Dict[str, float]] = {}
-
-    def _node_id(n: Dict[str, Any]) -> str:
-        return n.get("id") or f"anon_{id(n)}"
-
-    def _walk(n: Dict[str, Any]) -> None:
-        nid = _node_id(n)
-        values: Dict[str, float] = {}
-        for fid in features.keys():
-            values[fid] = _compose_value_mzn(n, fid, selected_candidate_by_task, features, agg_policies)
-        results[nid] = {"kind": n.get("kind"), **values}
-
-        if n.get("kind") in ("SEQ", "AND"):
-            for child in n.get("children", []) or []:
-                _walk(child)
-        elif n.get("kind") == "XOR":
-            for br in n.get("branches", []) or []:
-                _walk(br.get("child", {}) or {})
-        elif n.get("kind") == "LOOP":
-            body = n.get("body", {}) or {}
-            _walk(body)
-
-    _walk(node)
-    return results
-
-
-def compute_qos_ub_mzn(
-    instance: Dict[str, Any],
-    features: Dict[str, Any],
-    scaled_selected_by_task: Dict[str, Dict[str, Any]],
-) -> Dict[str, float]:
-    fn_map = {
-        "sum": 1,
-        "weighted_sum": 5,
-        "product": 2,
-        "max": 3,
-        "min": 4,
-        "scale_by_c": 1,
-        "scaled_sum": 1,
-        "scaled_product": 2,
-    }
-
-    def _map_fn(fn: Optional[str], default_val: int) -> int:
-        if not fn:
-            return default_val
-        return fn_map.get(fn.lower(), default_val)
-
-    tasks = instance.get("tasks", []) or []
-    candidates = instance.get("candidates", []) or []
-    task_ids = [t.get("id") for t in tasks if t.get("id")]
-
-    task_candidates_map: Dict[str, List[int]] = {tid: [] for tid in task_ids}
-    cand_qos: List[Dict[str, float]] = []
-
-    for idx, cand in enumerate(candidates):
-        tid = cand.get("task_id")
-        if tid in task_candidates_map:
-            task_candidates_map[tid].append(idx)
-        scaled_features = {}
-        for fid, feat in features.items():
-            raw_val = (cand.get("features", {}) or {}).get(fid)
-            if isinstance(raw_val, (int, float)):
-                scaled_features[fid] = _scale_value(float(raw_val), feat)
-        cand_qos.append(scaled_features)
-
-    agg_policies = instance.get("aggregation_policies", {}) or {}
-    qos_ub: Dict[str, float] = {}
-
-    for fid in features.keys():
-        pol = agg_policies.get(fid, {}) or {}
-        compose = pol.get("compose", {}) or {}
-
-        seq_pol = _map_fn(compose.get("seq", {}).get("fn"), 1)
-        loop_pol = _map_fn(compose.get("loop", {}).get("fn"), 1)
-
-        is_availability = "availability" in fid.lower() or "success" in fid.lower()
-        max_val = 1.0
-        if cand_qos:
-            max_val = max(1.0, max(abs(c.get(fid, 0.0)) for c in cand_qos))
-
-        if is_availability or seq_pol == 2 or loop_pol == 2:
-            qos_ub[fid] = 1.0
-        elif seq_pol == 1 or loop_pol == 1:
-            task_sum = 0.0
-            for tid in task_ids:
-                cidxs = task_candidates_map.get(tid, [])
-                if cidxs:
-                    task_sum += max(abs(cand_qos[i].get(fid, 0.0)) for i in cidxs)
-            loop_factor = 10
-            qos_ub[fid] = max(1.0, task_sum * loop_factor)
+        all_constraints_hard = not has_soft_constraints
+
+        if objective == "MANY":
+            category = "many"
+        elif objective == "MONO" and all_constraints_hard:
+            category = "mono_hard"
+        elif objective == "MONO":
+            category = "mono_soft"
+        elif objective == "MULTI":
+            category = "multi"
         else:
-            qos_ub[fid] = max_val * 1.5
-
-    return qos_ub
-
-
-def _scale_value(val: float, feat: Dict[str, Any]) -> float:
-    vr = feat.get("valid_range") or {}
-    mn = float(vr.get("min", 0.0))
-    mx = float(vr.get("max", 1.0))
-    denom = mx - mn
-    if abs(denom) < 1e-12:
-        return 0.0
-    scaled = (float(val) - mn) / denom
-    if scaled < 0.0:
-        return 0.0
-    if scaled > 1.0:
-        return 1.0
-    return scaled
-
-
-def _check_op(current: float, op: str, rhs: float) -> bool:
-    if op == "<=":
-        return current <= rhs
-    if op == "<":
-        return current < rhs
-    if op == ">=":
-        return current >= rhs
-    if op == ">":
-        return current > rhs
-    if op == "==":
-        return abs(current - rhs) <= 1e-9
-    if op == "!=" or op == "<>":
-        return abs(current - rhs) > 1e-9
-    return True
-
-
-def analyze_mzn_no_solution(instance: Dict[str, Any], rs_resp: Dict[str, Any]) -> Optional[Dict[str, Any]]:
-    binding = get_binding(rs_resp)
-    if not binding:
-        return None
-
-    candidates_by_id = {c["id"]: c for c in (instance.get("candidates", []) or [])}
-    features = {f["id"]: f for f in (instance.get("features", []) or [])}
-    agg_policies = instance.get("aggregation_policies", {}) or {}
-    selected_by_task = build_selected_candidate_by_task(binding, candidates_by_id)
-    root = (instance.get("composition", {}) or {}).get("root", {})
-    aggregated = compute_aggregated_qos(root, features, selected_by_task, agg_policies)
-
-    # Build a scaled view of selected candidates (MiniZinc-style scaling)
-    scaled_selected_by_task = {}
-    for task_id, cand in selected_by_task.items():
-        scaled_features = {}
-        for fid, feat in features.items():
-            raw_val = (cand.get("features", {}) or {}).get(fid)
-            if isinstance(raw_val, (int, float)):
-                scaled_features[fid] = _scale_value(float(raw_val), feat)
-        scaled_selected_by_task[task_id] = {
-            "id": cand.get("id"),
-            "provider_id": cand.get("provider_id"),
-            "features": scaled_features,
-        }
+            category = "other"
+
+        instances.append(
+            InstanceMeta(
+                path=path,
+                objective_type=objective,
+                all_constraints_hard=all_constraints_hard,
+                has_soft_constraints=has_soft_constraints,
+                category=category,
+                expected_by_engine=expected_by_engine,
+            )
+        )
+
+    return instances
+
+
+def _normalize_expected_behavior(value: Any) -> str:
+    if not isinstance(value, str):
+        return ""
+    normalized = value.strip().upper()
+    if normalized in EXPECTED_BEHAVIOR_VALUES:
+        return normalized
+    return ""
+
+
+def _extract_expected_by_engine(payload: Dict[str, Any]) -> Dict[str, str]:
+    metadata = payload.get("metadata")
+    if not isinstance(metadata, dict):
+        return {}
+
+    experiments = metadata.get("experiments")
+    if not isinstance(experiments, dict):
+        return {}
 
-    aggregated_scaled = compute_aggregated_qos(root, features, scaled_selected_by_task, agg_policies)
-    aggregated_mzn_scaled = compute_aggregated_qos_mzn(root, features, scaled_selected_by_task, agg_policies)
-    qos_ub = compute_qos_ub_mzn(instance, features, scaled_selected_by_task)
-    node_qos_mzn_scaled = compute_node_qos_mzn(root, features, scaled_selected_by_task, agg_policies)
-
-    bound_violations = []
-    scaled_bound_violations = []
-    mzn_scaled_bound_violations = []
-    qos_ub_violations = []
-    qos_ub_node_violations = []
-    dependency_violations = []
-    notes = []
-
-    for c in (instance.get("constraints", []) or []):
-        if c.get("hard") is False:
+    raw = experiments.get("expected_feasibility_by_engine")
+    if not isinstance(raw, dict):
+        return {}
+
+    out: Dict[str, str] = {}
+    for engine_id, behavior in raw.items():
+        if not isinstance(engine_id, str) or not engine_id.strip():
             continue
-        kind = (c.get("kind") or "").upper()
-        if kind == "ATTRIBUTE_BOUND":
-            scope = (c.get("scope") or "").upper()
-            attr = c.get("attribute_id")
-            op = c.get("op")
-            if not attr or not op:
-                continue
-            value = c.get("value")
-            if isinstance(value, dict) and op in ("IN_RANGE", "in_range"):
-                min_val = value.get("min")
-                max_val = value.get("max")
-                if scope == "GLOBAL":
-                    current = aggregated.get(attr)
-                else:
-                    task_id = c.get("task_id") or (c.get("tasks") or [None])[0]
-                    cand = selected_by_task.get(task_id)
-                    current = None if cand is None else (cand.get("features", {}) or {}).get(attr)
-                if current is None:
-                    notes.append({"constraint_id": c.get("id"), "reason": "missing_value"})
-                else:
-                    if (min_val is not None and current < min_val) or (max_val is not None and current > max_val):
-                        bound_violations.append({
-                            "constraint_id": c.get("id"),
-                            "scope": scope,
-                            "attribute_id": attr,
-                            "current": current,
-                            "min": min_val,
-                            "max": max_val,
-                        })
-                continue
-            if not isinstance(value, (int, float)):
-                continue
-            if scope == "GLOBAL":
-                current = aggregated.get(attr)
-                current_scaled = aggregated_scaled.get(attr)
-                if current is None:
-                    notes.append({"constraint_id": c.get("id"), "reason": "missing_aggregated_feature"})
-                    continue
-            else:
-                task_id = c.get("task_id") or (c.get("tasks") or [None])[0]
-                cand = selected_by_task.get(task_id)
-                if cand is None:
-                    notes.append({"constraint_id": c.get("id"), "reason": "missing_task_binding"})
-                    continue
-                current = (cand.get("features", {}) or {}).get(attr)
-                if current is None:
-                    notes.append({"constraint_id": c.get("id"), "reason": "missing_candidate_feature"})
-                    continue
-                cand_scaled = scaled_selected_by_task.get(task_id)
-                current_scaled = None
-                if cand_scaled is not None:
-                    current_scaled = (cand_scaled.get("features", {}) or {}).get(attr)
-            if not _check_op(float(current), op, float(value)):
-                bound_violations.append({
-                    "constraint_id": c.get("id"),
-                    "scope": scope,
-                    "attribute_id": attr,
-                    "current": current,
-                    "op": op,
-                    "value": value,
-                })
-
-            feat = features.get(attr)
-            if feat is not None and isinstance(value, (int, float)) and current_scaled is not None:
-                scaled_value = _scale_value(float(value), feat)
-                if not _check_op(float(current_scaled), op, float(scaled_value)):
-                    scaled_bound_violations.append({
-                        "constraint_id": c.get("id"),
-                        "scope": scope,
-                        "attribute_id": attr,
-                        "current_scaled": current_scaled,
-                        "op": op,
-                        "value_scaled": scaled_value,
-                    })
-                current_mzn_scaled = aggregated_mzn_scaled.get(attr) if scope == "GLOBAL" else current_scaled
-                if current_mzn_scaled is not None:
-                    if not _check_op(float(current_mzn_scaled), op, float(scaled_value)):
-                        mzn_scaled_bound_violations.append({
-                            "constraint_id": c.get("id"),
-                            "scope": scope,
-                            "attribute_id": attr,
-                            "current_scaled": current_mzn_scaled,
-                            "op": op,
-                            "value_scaled": scaled_value,
-                        })
-
-        elif kind == "DEPENDENCY":
-            dep_type = (c.get("type") or "").upper()
-            tasks = c.get("tasks") or []
-            if len(tasks) < 2:
-                continue
-            providers = []
-            missing = False
-            for t in tasks:
-                cand = selected_by_task.get(t)
-                if cand is None:
-                    missing = True
-                    break
-                providers.append(cand.get("provider_id"))
-            if missing:
-                notes.append({"constraint_id": c.get("id"), "reason": "missing_dependency_binding"})
-                continue
-
-            if dep_type == "SAME_PROVIDER":
-                for i in range(len(providers) - 1):
-                    if providers[i] != providers[i + 1]:
-                        dependency_violations.append({
-                            "constraint_id": c.get("id"),
-                            "type": dep_type,
-                            "tasks": tasks,
-                            "providers": providers,
-                        })
-                        break
-            elif dep_type == "DIFFERENT_PROVIDER":
-                for i in range(len(providers)):
-                    for j in range(i + 1, len(providers)):
-                        if providers[i] == providers[j]:
-                            dependency_violations.append({
-                                "constraint_id": c.get("id"),
-                                "type": dep_type,
-                                "tasks": tasks,
-                                "providers": providers,
-                            })
-                            i = len(providers)
-                            break
-
-            for fid, ub in qos_ub.items():
-                current = aggregated_mzn_scaled.get(fid)
-                if current is None:
-                    continue
-                if float(current) > float(ub) + 1e-9:
-                    qos_ub_violations.append({
-                        "attribute_id": fid,
-                        "current_scaled": current,
-                        "qos_ub": ub,
-                    })
-
-            for node_id, vals in node_qos_mzn_scaled.items():
-                kind = vals.get("kind")
-                for fid, ub in qos_ub.items():
-                    current = vals.get(fid)
-                    if current is None:
-                        continue
-                    if float(current) > float(ub) + 1e-9:
-                        qos_ub_node_violations.append({
-                            "node_id": node_id,
-                            "node_kind": kind,
-                            "attribute_id": fid,
-                            "current_scaled": current,
-                            "qos_ub": ub,
-                        })
-
-    return {
-        "binding": binding,
-        "aggregated_features": aggregated,
-        "aggregated_features_scaled": aggregated_scaled,
-        "aggregated_features_mzn_scaled": aggregated_mzn_scaled,
-        "node_qos_mzn_scaled": node_qos_mzn_scaled,
-        "qos_ub": qos_ub,
-        "bound_violations": bound_violations,
-        "mzn_scaled_bound_violations": scaled_bound_violations,
-        "mzn_loop_scaled_bound_violations": mzn_scaled_bound_violations,
-        "qos_ub_violations": qos_ub_violations,
-        "qos_ub_node_violations": qos_ub_node_violations,
-        "dependency_violations": dependency_violations,
-        "notes": notes,
-    }
+        normalized = _normalize_expected_behavior(behavior)
+        if normalized:
+            out[engine_id.strip()] = normalized
+    return out
 
-def load_instances():
-    """Load all JSON instances from the directory."""
-    instances = []
-    if not os.path.exists(INSTANCES_DIR):
-        print(colored(f"Directory {INSTANCES_DIR} does not exist.", "red"))
-        return []
-    
-    files = sorted([f for f in os.listdir(INSTANCES_DIR) if f.endswith(".json")])
-    for f in files:
-        with open(os.path.join(INSTANCES_DIR, f), 'r') as fd:
-            try:
-                data = json.load(fd)
-                instances.append({"filename": f, "data": data})
-            except Exception as e:
-                print(colored(f"Error loading {f}: {e}", "red"))
-    return instances
 
-def solve(instance: Dict[str, Any], engine_id: str, options: Optional[Dict[str, Any]] = None) -> Tuple[int, Dict[str, Any], float]:
-    """Send request to gateway, poll if 202, return status, response, duration."""
-    payload = {
-        "engine_id": engine_id,
-        "instance": instance,
-        "verbose": True  # Enable diagnostics
+def expected_behavior_for_engine(engine_id: str, meta: InstanceMeta) -> str:
+    explicit = meta.expected_by_engine.get(engine_id)
+    if explicit:
+        return explicit
+
+    if meta.objective_type == "MULTI":
+        return "VALIDATION_ERROR"
+
+    if meta.objective_type == "MANY":
+        return "ANY_COMPLETED" if engine_id == "many-heuristic" else "VALIDATION_ERROR"
+
+    if meta.objective_type != "MONO":
+        return "VALIDATION_ERROR"
+
+    if not meta.all_constraints_hard:
+        return "ANY_COMPLETED" if engine_id == "random-search" else "VALIDATION_ERROR"
+
+    hard_rules = {
+        "minizinc-csp": "FEASIBLE",
+        "random-search": "ANY_COMPLETED",
     }
-    if options:
-        payload["options"] = options
-    start = time.time()
-    try:
-        # Initial Request
-        resp = None
-        for attempt in range(2 + 1):
-            try:
-                resp = requests.post(GATEWAY_URL, json=payload, timeout=900)
-                if resp.status_code in (502, 503, 504):
-                    if attempt >= 2:
-                        return resp.status_code, {"error": resp.text}, time.time() - start
-                    time.sleep(1)
-                    continue
-                break
-            except requests.Timeout:
-                if attempt >= 2:
-                    return 504, {"error": "Gateway timeout on initial request"}, time.time() - start
-                time.sleep(1)
-            except requests.ConnectionError:
-                if attempt >= 2:
-                    return 503, {"error": "Gateway connection failed"}, time.time() - start
-                time.sleep(1)
-
-        if resp is None:
-            return 503, {"error": "Gateway connection failed"}, time.time() - start
-
-        if resp.status_code == 202:
-            job_id = resp.json().get("job_id")
-            # Poll loop with configurable or derived max duration
-            max_poll_seconds = 7200
-            if max_poll_seconds <= 0:
-                if 1000 > 0:
-                    max_poll_seconds = min(7200, max(300, int(1000 / 2000)))
-                else:
-                    max_poll_seconds = 300
-            start_poll = time.time()
-            while time.time() - start_poll < max_poll_seconds:
-                try:
-                    poll_resp = requests.get(f"http://localhost:8000/v1/jobs/{job_id}", timeout=30)
-                    if poll_resp.status_code == 200:
-                        poll_data = poll_resp.json()
-                        status = poll_data.get("status")
-                        if status == "completed":
-                            duration = time.time() - start
-                            # Return the result which is inside the job result
-                            return 200, poll_data.get("result", {}), duration
-                        elif status == "failed":
-                            duration = time.time() - start
-                            return 500, {"error": poll_data.get("error"), "detail": poll_data.get("detail")}, duration
-                    time.sleep(2)
-                except requests.RequestException:
-                    time.sleep(2)
-            
-            # Timeout
-            duration = time.time() - start
-            return 408, {"error": "Timeout waiting for job completion", "job_id": job_id}, duration
-            
-        elif resp.status_code == 200:
-            duration = time.time() - start
-            data = resp.json()
-            # Normalise: if this is a JobResponse wrapper, extract .result
-            if "result" in data and "job_id" in data:
-                return 200, data.get("result", {}), duration
-            return 200, data, duration
-        else:
-            duration = time.time() - start
-            try:
-                return resp.status_code, resp.json(), duration
-            except:
-                return resp.status_code, {"error": resp.text}, duration
-
-    except Exception as e:
-        duration = time.time() - start
-        return 500, {"error": str(e)}, duration
-
-def determine_result(obj_type, has_soft, mzn_s, rs_s, rs_resp=None, many_s=None, many_resp=None):
-    """Determine if the result is a PASS or FAIL based on expectations."""
-    is_pass = False
-    msg = ""
-    
-    # Check if RS returned 200 but with no actual solutions (heuristic failure)
-    rs_has_solution = True
-    if rs_resp and rs_s in [200, 202]:
-        b = get_binding(rs_resp)
-        if b is None:
-            rs_has_solution = False
-    
-    if obj_type == "MANY":
-        # Expected: MZN/RS reject, Many-Heuristic solves with a non-empty binding set
-        many_has_solution = has_non_empty_binding_set(many_resp) if many_resp and many_s in [200, 202] else False
-        if mzn_s >= 400 and rs_s >= 400 and many_s in [200, 202]:
-            if many_has_solution:
-                is_pass = True
-                msg = "PASS (MZN/RS Reject, MANY Solve)"
-            else:
-                msg = "FAIL (MANY NoSol)"
-        else:
-            msg = f"FAIL (Exp MZN/RS Reject, MANY OK; got MZN:{mzn_s} RS:{rs_s} MANY:{many_s})"
+    resolved = hard_rules.get(engine_id)
+    if resolved:
+        return resolved
+
+    return "VALIDATION_ERROR"
+
+
+def expected_to_solve(engine_id: str, meta: InstanceMeta) -> bool:
+    return expected_behavior_for_engine(engine_id, meta) != "VALIDATION_ERROR"
+
+
+def sanitize_base_url(base_url: str) -> str:
+    return base_url.rstrip("/")
+
+
+def fetch_active_engines(
+    session: requests.Session,
+    base_url: str,
+    connect_timeout: float,
+    read_timeout: float,
+) -> List[str]:
+    url = f"{sanitize_base_url(base_url)}/v1/engines"
+    response = session.get(url, timeout=(connect_timeout, read_timeout))
+    response.raise_for_status()
+    engines = response.json()
+    if not isinstance(engines, list):
+        raise RuntimeError("Unexpected /v1/engines response format: expected list")
+
+    active = [e.get("id") for e in engines if isinstance(e, dict) and e.get("active")]
+    active_ids = [eid for eid in active if isinstance(eid, str) and eid.strip()]
+    if not active_ids:
+        raise RuntimeError("No active engines found in /v1/engines")
+    return sorted(set(active_ids))
+
+
+def parse_validation_violations(resp_json: Dict[str, Any]) -> Tuple[bool, List[str], str]:
+    detail = resp_json.get("detail")
+    if not isinstance(detail, dict):
+        return False, [], "Missing or non-object 'detail' in 422 response"
+
+    violations = detail.get("violations")
+    if not isinstance(violations, list):
+        return False, [], "Missing or non-list 'detail.violations' in 422 response"
+
+    codes: List[str] = []
+    for violation in violations:
+        if isinstance(violation, dict):
+            code = violation.get("code")
+            if isinstance(code, str) and code:
+                codes.append(code)
+
+    return True, codes, ""
+
+
+def poll_job_until_terminal(
+    session: requests.Session,
+    base_url: str,
+    job_id: str,
+    connect_timeout: float,
+    poll_response_timeout: int,
+    max_poll_seconds: int,
+    poll_interval: float,
+) -> Tuple[str, Optional[Dict[str, Any]], int, str]:
+    deadline = time.monotonic() + max_poll_seconds
+    polls = 0
+    last_error = ""
+
+    while time.monotonic() < deadline:
+        polls += 1
+        try:
+            response = session.get(
+                f"{sanitize_base_url(base_url)}/v1/jobs/{job_id}",
+                timeout=(connect_timeout, poll_response_timeout),
+            )
+            response.raise_for_status()
+            payload = response.json()
+            status = str(payload.get("status", "")).lower()
+
+            if status in {"completed", "failed"}:
+                return status, payload, polls, ""
+
+            if status not in {"queued", "running"}:
+                return "failed", payload, polls, f"Unknown job status '{status}'"
+
+            time.sleep(poll_interval)
+        except requests.RequestException as exc:
+            last_error = f"Polling error: {exc}"
+            time.sleep(min(poll_interval, 5.0))
+        except ValueError as exc:
+            last_error = f"Invalid JSON while polling: {exc}"
+            time.sleep(min(poll_interval, 5.0))
+
+    return "timeout", None, polls, (
+        last_error or f"Polling exceeded {max_poll_seconds} seconds"
+    )
+
+
+def _mark_result(result: CaseResult, outcome: str, reason: str, passed: bool) -> None:
+    result.outcome = outcome
+    result.reason = reason
+    result.passed_expectation = passed
+
+
+def _has_non_empty_binding(solutions: Any) -> bool:
+    if not isinstance(solutions, list):
+        return False
+    for solution in solutions:
+        if not isinstance(solution, dict):
+            continue
+        binding = solution.get("binding") or {}
+        if isinstance(binding, dict) and len(binding) > 0:
+            return True
+    return False
 
-    elif obj_type == "MULTI":
-        # Expected: All reject (>=400)
-        if mzn_s >= 400 and rs_s >= 400 and (many_s is None or many_s >= 400):
-            is_pass = True
-            msg = "PASS (All Rejected)"
-        else:
-            msg = f"FAIL (Exp Reject, got MZN:{mzn_s} RS:{rs_s} MANY:{many_s})"
-            
-    elif has_soft:
-        # Expected: MZN Reject (>=400), RS Solve (200/202)
-        if mzn_s >= 400 and rs_s in [200, 202]:
-            if rs_has_solution:
-                is_pass = True
-                msg = "PASS (MZN Reject, RS Solve)"
-            else:
-                is_pass = True  # Still pass — RS is heuristic, no-solution is valid
-                msg = "PASS (MZN Reject, RS NoSol)"
-        else:
-            msg = f"FAIL (Exp MZN Fail/RS OK, got MZN:{mzn_s} RS:{rs_s})"
-            
-    else: # Single + Hard
-        # Expected: Both Solve
-        if mzn_s in [200, 202] and rs_s in [200, 202]:
-            if rs_has_solution:
-                is_pass = True
-                msg = "PASS (Both Solved)"
-            else:
-                is_pass = True  # RS is heuristic — no-solution is acceptable
-                msg = "PASS (MZN Solved, RS NoSol)"
-        else:
-            msg = f"FAIL (Exp Both OK, got MZN:{mzn_s} RS:{rs_s})"
-            
-    return is_pass, msg
-
-def run_experiments():
-    instances = load_instances()
-    print(colored(f"Found {len(instances)} instances. Starting experiments...", "cyan", attrs=["bold"]))
-    print(colored(
-        f"Configuration: Timeout=300s, Engines=MiniZinc,RandomSearch,ManyHeuristic, "
-        f"Iterations={DEFAULT_ITERATIONS_COUNT}, ManyIterations={MANY_ITERATIONS_COUNT}",
-        "cyan"
-    ))
-    
-    results = []
-    
-    # Progress Bar using tqdm
-    # LIMIT FOR TESTING (User request: do not run all)
-    instances = instances[:100]
-    pbar = tqdm(instances, unit="inst")
-    
-    for item in pbar:
-        filename = item["filename"]
-        data = item["data"]
-        obj_type = data.get("objective", {}).get("type", "MONO")
-        constraints = data.get("constraints", [])
-        has_soft = any(not c.get("hard", True) for c in constraints)
-        
-        # Update description
-        short_name = (filename[:25] + '..') if len(filename) > 25 else filename
-        pbar.set_description(f"Processing {short_name}")
-        
-        # Run Engines
-        mzn_status, mzn_resp, mzn_time = solve(
-            data,
-            "minizinc-csp",
-            options={"iterations_count": DEFAULT_ITERATIONS_COUNT}
+
+def _normalize_feasibility(value: Any) -> str:
+    if isinstance(value, str) and value:
+        return value.upper()
+    return ""
+
+
+def _infer_feasibility_from_body(body: Dict[str, Any]) -> str:
+    result_obj = body.get("result") if isinstance(body, dict) else None
+    if not isinstance(result_obj, dict):
+        return "UNKNOWN"
+
+    feasibility = _normalize_feasibility(result_obj.get("feasibility"))
+    if feasibility:
+        return feasibility
+
+    if _has_non_empty_binding(result_obj.get("solutions", [])):
+        return "FEASIBLE"
+
+    return "UNKNOWN"
+
+
+def _mark_expected_feasibility_match(result: CaseResult, feasibility: str) -> None:
+    if feasibility == "FEASIBLE":
+        _mark_result(
+            result,
+            outcome="solved",
+            reason="Completed with expected FEASIBLE result",
+            passed=True,
         )
-        rs_status, rs_resp, rs_time = solve(
-            data,
-            "random-search",
-            options={"iterations_count": DEFAULT_ITERATIONS_COUNT}
+        return
+
+    _mark_result(
+        result,
+        outcome="expected_no_solution",
+        reason=f"Completed with expected {feasibility} result",
+        passed=True,
+    )
+
+
+def _mark_expected_feasibility_mismatch(
+    result: CaseResult,
+    feasibility: str,
+    expected_behavior: str,
+) -> None:
+    if result.engine_id == "minizinc-csp":
+        _mark_result(
+            result,
+            outcome="no_solution",
+            reason=f"MiniZinc completed with {feasibility} (expected {expected_behavior})",
+            passed=False,
         )
-        many_status, many_resp, many_time = solve(
-            data,
-            "many-heuristic",
-            options={"iterations_count": MANY_ITERATIONS_COUNT}
+        return
+
+    if result.engine_id in {"random-search", "many-heuristic"}:
+        _mark_result(
+            result,
+            outcome="no_solution_tolerated",
+            reason=f"Completed with {feasibility} (expected {expected_behavior})",
+            passed=False,
         )
-        
-        # Analyze Result immediately for log
-        is_pass, msg = determine_result(
-            obj_type,
-            has_soft,
-            mzn_status,
-            rs_status,
-            rs_resp,
-            many_status,
-            many_resp
+        return
+
+    _mark_result(
+        result,
+        outcome="no_solution",
+        reason=f"Completed with {feasibility} (expected {expected_behavior})",
+        passed=False,
+    )
+
+
+def _handle_completed_status(
+    result: CaseResult,
+    expected: bool,
+    body: Dict[str, Any],
+    expected_behavior: str,
+) -> None:
+    feasibility = _infer_feasibility_from_body(body or {})
+    result.feasibility = feasibility
+
+    if not expected:
+        _mark_result(
+            result,
+            outcome="solved" if feasibility == "FEASIBLE" else "no_solution",
+            reason=f"Expected validation error (422), but job completed with {feasibility}",
+            passed=False,
         )
-        
-        # Store result
-        mzn_binding = get_binding(mzn_resp) if mzn_resp and mzn_status in [200, 202] else None
-        rs_binding = get_binding(rs_resp) if rs_resp and rs_status in [200, 202] else None
-        mzn_no_solution_diag = None
-        if mzn_status in [200, 202] and mzn_binding is None and rs_binding is not None:
-            mzn_no_solution_diag = analyze_mzn_no_solution(data, rs_resp)
-
-        results.append({
-            "filename": filename,
-            "objective": obj_type,
-            "has_soft": has_soft,
-            "minizinc": {"status": mzn_status, "response": mzn_resp, "time": mzn_time},
-            "random_search": {"status": rs_status, "response": rs_resp, "time": rs_time},
-            "many_heuristic": {"status": many_status, "response": many_resp, "time": many_time},
-            "mzn_no_solution_diag": mzn_no_solution_diag,
-            "is_pass": is_pass,
-            "msg": msg
-        })
-        
-        # Print colored line above progress bar
-        color = "green" if is_pass else "red"
-        status_icon = "✓" if is_pass else "✗"
-        
-        # Determine specific reason color (e.g. Expected Fail vs Unexpected Fail)
-        # Using cyan for info on time
-        
-        tqdm.write(
-            colored(f"{status_icon} {filename}", color, attrs=["bold"]) + 
-            f" | {msg} | " +
-            colored(f"MZN: {mzn_status} ({mzn_time:.1f}s)", "blue") + " | " + 
-            colored(f"RS: {rs_status} ({rs_time:.1f}s)", "magenta") + " | " +
-            colored(f"MANY: {many_status} ({many_time:.1f}s)", "cyan")
+        return
+
+    if expected_behavior == "ANY_COMPLETED":
+        if feasibility == "FEASIBLE":
+            _mark_result(result, outcome="solved", reason="Completed with FEASIBLE result", passed=True)
+            return
+        _mark_result(
+            result,
+            outcome="no_solution_tolerated",
+            reason=f"Completed with {feasibility}; tolerated by expectation policy",
+            passed=True,
         )
+        return
 
-    generate_report(results)
-    print(colored(f"\nReport generated successfully at {REPORT_FILE}", "green", attrs=["bold"]))
-
-def get_binding(response):
-    """Effectively extracts the binding dictionary from a response."""
-    if not response or "error" in response or "detail" in response:
-        return None
-    # Check top-level solutions (async/poll path)
-    solutions = response.get("solutions", [])
-    if solutions and len(solutions) > 0:
-        return solutions[0].get("binding")
-    # Check nested result.solutions (sync path — full JobResponse)
-    result = response.get("result")
-    if result and isinstance(result, dict):
-        # Check for error in provenance metadata
-        prov = result.get("provenance") or {}
-        meta = prov.get("metadata") or {}
-        if meta.get("error"):
-            return None
-        solutions = result.get("solutions", [])
-        if solutions and len(solutions) > 0:
-            return solutions[0].get("binding")
-    return None
-
-
-def has_non_empty_binding_set(response):
-    """Return True if any solution contains a non-empty binding."""
-    if not response or "error" in response or "detail" in response:
-        return False
+    if expected_behavior in {"FEASIBLE", "INFEASIBLE", "UNKNOWN"}:
+        if feasibility == expected_behavior:
+            _mark_expected_feasibility_match(result, feasibility)
+            return
 
-    def extract_solutions(obj):
-        solutions = obj.get("solutions", []) if isinstance(obj, dict) else []
-        if solutions:
-            return solutions
-        result = obj.get("result") if isinstance(obj, dict) else None
-        if isinstance(result, dict):
-            return result.get("solutions", [])
-        return []
-
-    for solution in extract_solutions(response):
-        binding = solution.get("binding")
-        if isinstance(binding, dict) and len(binding) > 0:
-            return True
-    return False
+        _mark_expected_feasibility_mismatch(result, feasibility, expected_behavior)
+        return
 
-def generate_report(results):
-    with open(REPORT_FILE, 'w') as f:
-        f.write("# Experiment Report\n\n")
-        f.write(f"**Generated**: {time.strftime('%Y-%m-%d %H:%M:%S')}\n\n")
-        
-        # Summary Statistics
-        total = len(results)
-        passed = sum(1 for r in results if r["is_pass"])
-        failed = total - passed
-        
-        f.write(f"**Total**: {total} | **Passed**: {passed} | **Failed**: {failed}\n\n")
-        
-        # Progress Bar visual in MD
-        percent = (passed / total) * 100 if total > 0 else 0
-        f.write(f"![Progress](https://geps.dev/progress/{int(percent)}?dangerColor=d9534f&warningColor=f0ad4e&successColor=5cb85c)\n\n")
-
-        # Summary Table
-        f.write("## Summary\n\n")
-        f.write("| Instance | Obj | Soft | MiniZinc | RandomSearch | ManyHeuristic | Binding Match | Binding Space Size | Result |\n")
-        f.write("|---|---|---|---|---|---|---|---|---|\n")
-        
-        for r in results:
-            fname = r["filename"].replace(".json", "")
-            if len(fname) > 30: fname = fname[:27] + "..."
-            
-            # Status Icons
-            mzn_s = r["minizinc"]["status"]
-            rs_s = r["random_search"]["status"]
-            many_s = r["many_heuristic"]["status"]
-            
-            mzn_icon = "🟢" if mzn_s in [200, 202] else "🔴"
-            rs_icon = "🟢" if rs_s in [200, 202] else "🔴"
-            many_icon = "🟢" if many_s in [200, 202] else "🔴"
-            
-            res_icon = "✅" if r["is_pass"] else "❌"
-            
-            # Binding Match Logic
-            binding_match = ""
-
-            # Compare if BOTH engines returned a valid response (200 or 202)
-            if mzn_s in [200, 202] and rs_s in [200, 202]:
-                b_mzn = get_binding(r["minizinc"]["response"])
-                b_rs = get_binding(r["random_search"]["response"])
-                
-                if b_mzn is not None and b_rs is not None:
-                    # Determine equality
-                    # Bindings are dicts {task_id: candidate_id}, direct comparison works
-                    if b_mzn == b_rs:
-                        binding_match = "✅ MATCH"
-                    else:
-                        binding_match = "⚠️ DIFF"
-                elif b_mzn is None and b_rs is None:
-                    binding_match = "✅ No Sol"
-                elif b_mzn is None:
-                    binding_match = "⚠️ MZN NoSol"
-                elif b_rs is None:
-                    binding_match = "⚠️ RS NoSol"
-                else:
-                    binding_match = "❓ ERR"
-            else:
-                binding_match = "-" # N/A if failed or rejected
-            
-            # Binding Space Size Extraction
-            binding_space_size = "-"
-            
-            # Try to get from MiniZinc result first
-            if r["minizinc"]["response"] and "diagnostics" in r["minizinc"]["response"]:
-                diag = r["minizinc"]["response"]["diagnostics"]
-                if diag and "binding_space" in diag:
-                    binding_space_size = diag["binding_space"]["cardinality"]
-            
-            # If not found, try Random Search
-            if binding_space_size == "-" and r["random_search"]["response"] and "diagnostics" in r["random_search"]["response"]:
-                diag = r["random_search"]["response"]["diagnostics"]
-                if diag and "binding_space" in diag:
-                    binding_space_size = diag["binding_space"]["cardinality"]
-
-            # Random Search es heurístico: una diferencia de binding no es un fallo "requerido".
-            if binding_match == "⚠️ DIFF":
-                binding_match = "⚠️ DIFF (HEUR)"
-
-            f.write(f"| {fname} | {r['objective']} | {r['has_soft']} | {mzn_icon} {mzn_s} | {rs_icon} {rs_s} | {many_icon} {many_s} | {binding_match} | {binding_space_size} | {res_icon} {r['msg']} |\n")
-            
-        f.write("\n## Detailed Results\n\n")
-        
-        for r in results:
-            fname = r["filename"]
-            pass_badge = "![Pass](https://img.shields.io/badge/Result-PASS-success)" if r["is_pass"] else "![Fail](https://img.shields.io/badge/Result-FAIL-critical)"
-            
-            f.write(f"### {fname} {pass_badge}\n\n")
-            f.write(f"- **Objective**: `{r['objective']}`\n")
-            f.write(f"- **Soft Constraints**: `{r['has_soft']}`\n\n")
-            
-            # Columns
-            f.write("| Engine | Status | Time | Result |\n")
-            f.write("|---|---|---|---|\n")
-            
-            def row(name, d):
-                s = d["status"]
-                t = d["time"]
-                icon = "🟢" if s in [200, 202] else "🔴"
-                return f"| **{name}** | {icon} {s} | {t:.2f}s | See below |"
-            
-            f.write(row("MiniZinc CSP", r["minizinc"]) + "\n")
-            f.write(row("Random Search", r["random_search"]) + "\n\n")
-            f.write(row("Many Heuristic", r["many_heuristic"]) + "\n\n")
-            
-            f.write("<details><summary><b>View Engine Responses</b></summary>\n\n")
-            
-            def print_details(name, d):
-                f.write(f"#### {name}\n")
-                resp = d["response"]
-                
-                # Check for solutions/binding
-                solutions = resp.get("solutions", [])
-                if solutions:
-                    binding = solutions[0].get("binding", {})
-                    f.write("**Binding Solution**:\n")
-                    f.write("```json\n")
-                    f.write(json.dumps(binding, indent=2))
-                    f.write("\n```\n")
-                    
-                    agg = solutions[0].get("aggregated_features", {})
-                    if agg:
-                         f.write("**Aggregated Features**:\n")
-                         f.write("```json\n")
-                         f.write(json.dumps(agg, indent=2))
-                         f.write("\n```\n")
-                elif "error" in resp:
-                    f.write(f"**Error**:\n```json\n{json.dumps(resp, indent=2)}\n```\n")
+    _mark_expected_feasibility_mismatch(result, feasibility, expected_behavior)
+
+
+def _handle_422_case(result: CaseResult, body: Dict[str, Any], expected: bool) -> None:
+    has_valid_violations, codes, violation_error = parse_validation_violations(body)
+    result.violation_codes = codes
+
+    if expected:
+        _mark_result(
+            result,
+            outcome="validation_error",
+            reason="Expected solver success but got validation error",
+            passed=False,
+        )
+        return
+
+    if has_valid_violations:
+        _mark_result(
+            result,
+            outcome="validation_error",
+            reason="Validation failure as expected",
+            passed=True,
+        )
+        return
+
+    _mark_result(
+        result,
+        outcome="validation_error",
+        reason=f"Expected 422 with violations, but payload was invalid: {violation_error}",
+        passed=False,
+    )
+
+
+def _handle_terminal_status(
+    result: CaseResult,
+    status: str,
+    expected: bool,
+    expected_behavior: str,
+    body: Optional[Dict[str, Any]] = None,
+    error: str = "",
+) -> None:
+    if status == "completed":
+        _handle_completed_status(
+            result=result,
+            expected=expected,
+            body=body or {},
+            expected_behavior=expected_behavior,
+        )
+        return
+
+    if status == "failed":
+        _mark_result(result, outcome="job_failed", reason=error or "Job failed", passed=False)
+        return
+
+    _mark_result(
+        result,
+        outcome="technical_error",
+        reason=f"Unexpected status: {status or '<missing>'}",
+        passed=False,
+    )
+
+
+def _handle_async_case(
+    result: CaseResult,
+    session: requests.Session,
+    base_url: str,
+    job_id: str,
+    connect_timeout: float,
+    poll_response_timeout: int,
+    max_poll_seconds: int,
+    poll_interval: float,
+    expected: bool,
+    expected_behavior: str,
+) -> None:
+    final_status, poll_payload, poll_count, poll_error = poll_job_until_terminal(
+        session=session,
+        base_url=base_url,
+        job_id=job_id,
+        connect_timeout=connect_timeout,
+        poll_response_timeout=poll_response_timeout,
+        max_poll_seconds=max_poll_seconds,
+        poll_interval=poll_interval,
+    )
+    result.poll_count = poll_count
+
+    if final_status == "timeout":
+        _mark_result(result, outcome="poll_timeout", reason=poll_error, passed=False)
+        return
+
+    if final_status == "completed":
+        _handle_terminal_status(
+            result,
+            status="completed",
+            expected=expected,
+            expected_behavior=expected_behavior,
+            body=poll_payload,
+        )
+        return
+
+    if final_status == "failed":
+        job_error = ""
+        if isinstance(poll_payload, dict):
+            job_error = str(poll_payload.get("error") or "")
+        _handle_terminal_status(
+            result,
+            status="failed",
+            expected=expected,
+            expected_behavior=expected_behavior,
+            body=poll_payload,
+            error=job_error or poll_error,
+        )
+        return
+
+    _mark_result(
+        result,
+        outcome="technical_error",
+        reason=f"Unexpected final status: {final_status}",
+        passed=False,
+    )
+
+
+def run_single_case(
+    session: requests.Session,
+    base_url: str,
+    engine_id: str,
+    instance_meta: InstanceMeta,
+    connect_timeout: float,
+    solve_timeout: int,
+    poll_response_timeout: int,
+    max_poll_seconds: int,
+    poll_interval: float,
+) -> CaseResult:
+    expected_behavior = expected_behavior_for_engine(engine_id, instance_meta)
+    expected = expected_behavior != "VALIDATION_ERROR"
+    start = time.monotonic()
+    instance_name = instance_meta.path.name
+
+    with instance_meta.path.open("r", encoding="utf-8") as handle:
+        instance_payload = json.load(handle)
+
+    request_payload = {
+        "engine_id": engine_id,
+        "instance": instance_payload,
+        "options": {},
+        "verbose": False,
+    }
+
+    result = CaseResult(
+        instance=instance_name,
+        engine_id=engine_id,
+        category=instance_meta.category,
+        objective_type=instance_meta.objective_type,
+        all_constraints_hard=instance_meta.all_constraints_hard,
+        expected_to_solve=expected,
+        expected_behavior=expected_behavior,
+        passed_expectation=False,
+        outcome="unknown",
+    )
+
+    try:
+        response = session.post(
+            f"{sanitize_base_url(base_url)}/v1/solve",
+            json=request_payload,
+            timeout=(connect_timeout, solve_timeout),
+        )
+        result.status_code = response.status_code
+
+        if response.status_code == 422:
+            _handle_422_case(result=result, body=response.json(), expected=expected)
+            result.elapsed_seconds = time.monotonic() - start
+            return result
+
+        response.raise_for_status()
+        body = response.json()
+
+        status = str(body.get("status", "")).lower()
+        job_id = body.get("job_id")
+        if isinstance(job_id, str):
+            result.job_id = job_id
+
+        if status in {"queued", "running"}:
+            if not isinstance(job_id, str) or not job_id:
+                _mark_result(
+                    result,
+                    outcome="technical_error",
+                    reason="Async response without job_id",
+                    passed=False,
+                )
+                result.elapsed_seconds = time.monotonic() - start
+                return result
+
+            _handle_async_case(
+                result=result,
+                session=session,
+                base_url=base_url,
+                job_id=job_id,
+                connect_timeout=connect_timeout,
+                poll_response_timeout=poll_response_timeout,
+                max_poll_seconds=max_poll_seconds,
+                poll_interval=poll_interval,
+                expected=expected,
+                expected_behavior=expected_behavior,
+            )
+            result.elapsed_seconds = time.monotonic() - start
+            return result
+
+        sync_error = str(body.get("error") or "") if isinstance(body, dict) else ""
+        _handle_terminal_status(
+            result,
+            status=status,
+            expected=expected,
+            expected_behavior=expected_behavior,
+            body=body,
+            error=sync_error,
+        )
+
+    except requests.HTTPError as exc:
+        _mark_result(result, outcome="http_error", reason=f"HTTP error: {exc}", passed=False)
+    except requests.RequestException as exc:
+        _mark_result(result, outcome="network_error", reason=f"Network error: {exc}", passed=False)
+    except ValueError as exc:
+        _mark_result(result, outcome="parse_error", reason=f"JSON parse error: {exc}", passed=False)
+    except Exception as exc:
+        _mark_result(result, outcome="technical_error", reason=f"Unexpected error: {exc}", passed=False)
+
+    result.elapsed_seconds = time.monotonic() - start
+    return result
+
+
+def colored(text: str, color_code: str, use_color: bool) -> str:
+    if not use_color:
+        return text
+    return f"\033[{color_code}m{text}\033[0m"
+
+
+def progress_bar(current: int, total: int, width: int = 30) -> str:
+    total = max(total, 1)
+    ratio = min(max(current / total, 0.0), 1.0)
+    filled = int(ratio * width)
+    return "█" * filled + "░" * (width - filled)
+
+
+def print_progress(
+    done: int,
+    total: int,
+    passed: int,
+    failed: int,
+    current_label: str,
+    use_color: bool,
+) -> None:
+    pct = (done / max(total, 1)) * 100
+    bar = progress_bar(done, total)
+    status = (
+        f"[{bar}] {done}/{total} ({pct:5.1f}%) | "
+        f"{colored('PASS', '32', use_color)} {passed} | "
+        f"{colored('FAIL', '31', use_color)} {failed} | "
+        f"{current_label}"
+    )
+    sys.stdout.write("\r" + status[:180].ljust(180))
+    sys.stdout.flush()
+
+
+def format_seconds(seconds: float) -> str:
+    seconds = int(round(seconds))
+    h, rem = divmod(seconds, 3600)
+    m, s = divmod(rem, 60)
+    if h:
+        return f"{h}h {m:02d}m {s:02d}s"
+    if m:
+        return f"{m}m {s:02d}s"
+    return f"{s}s"
+
+
+def build_summary_tables(results: List[CaseResult]) -> str:
+    by_engine_category: Dict[Tuple[str, str], Dict[str, int]] = {}
+    for result in results:
+        key = (result.engine_id, result.category)
+        if key not in by_engine_category:
+            by_engine_category[key] = {"total": 0, "pass": 0, "fail": 0}
+        by_engine_category[key]["total"] += 1
+        if result.passed_expectation:
+            by_engine_category[key]["pass"] += 1
+        else:
+            by_engine_category[key]["fail"] += 1
+
+    headers = ["Engine", "Category", "Total", "Pass", "Fail", "Pass %"]
+    rows = [headers]
+    for (engine_id, category), counters in sorted(by_engine_category.items()):
+        total = counters["total"]
+        pcount = counters["pass"]
+        fcount = counters["fail"]
+        ratio = (pcount / total * 100.0) if total else 0.0
+        rows.append(
+            [
+                engine_id,
+                category,
+                str(total),
+                str(pcount),
+                str(fcount),
+                f"{ratio:5.1f}",
+            ]
+        )
+
+    widths = [max(len(row[i]) for row in rows) for i in range(len(headers))]
+    lines = []
+    for idx, row in enumerate(rows):
+        line = " | ".join(cell.ljust(widths[i]) for i, cell in enumerate(row))
+        lines.append(line)
+        if idx == 0:
+            sep = "-+-".join("-" * widths[i] for i in range(len(widths)))
+            lines.append(sep)
+    return "\n".join(lines)
+
+
+def build_top_failures(results: List[CaseResult], limit: int = 8) -> List[CaseResult]:
+    failures = [r for r in results if not r.passed_expectation]
+    failures.sort(key=lambda r: (-r.elapsed_seconds, r.instance, r.engine_id))
+    return failures[:limit]
+
+
+def write_reports(
+    reports_dir: Path,
+    started_at: str,
+    finished_at: str,
+    base_url: str,
+    engines: List[str],
+    instances_dir: Path,
+    results: List[CaseResult],
+    total_elapsed: float,
+) -> Tuple[Path, Path]:
+    reports_dir.mkdir(parents=True, exist_ok=True)
+    stamp = datetime.now(timezone.utc).strftime("%Y%m%dT%H%M%SZ")
+    json_path = reports_dir / f"run_experiments_{stamp}.json"
+    md_path = reports_dir / f"run_experiments_{stamp}.md"
+
+    payload = {
+        "started_at": started_at,
+        "finished_at": finished_at,
+        "duration_seconds": total_elapsed,
+        "base_url": base_url,
+        "instances_dir": str(instances_dir),
+        "engines": engines,
+        "totals": {
+            "cases": len(results),
+            "pass": sum(1 for r in results if r.passed_expectation),
+            "fail": sum(1 for r in results if not r.passed_expectation),
+        },
+        "results": [asdict(r) for r in results],
+    }
+
+    with json_path.open("w", encoding="utf-8") as handle:
+        json.dump(payload, handle, indent=2, ensure_ascii=False)
+
+    lines = [
+        "# OpenBinding Experiment Report",
+        "",
+        f"- Started (UTC): {started_at}",
+        f"- Finished (UTC): {finished_at}",
+        f"- Duration: {format_seconds(total_elapsed)}",
+        f"- Gateway: {base_url}",
+        f"- Engines: {', '.join(engines)}",
+        f"- Instances dir: {instances_dir}",
+        "",
+        "## Summary",
+        "",
+        f"- Total cases: {payload['totals']['cases']}",
+        f"- Passed expectations: {payload['totals']['pass']}",
+        f"- Failed expectations: {payload['totals']['fail']}",
+        "",
+        "## Matrix (engine × category)",
+        "",
+        "```",
+        build_summary_tables(results),
+        "```",
+    ]
+
+    top_failures = build_top_failures(results)
+    lines.extend(["", "## Top expectation mismatches", ""])
+    if not top_failures:
+        lines.append("All expectations were satisfied ✅")
+    else:
+        for row in top_failures:
+            lines.append(
+                f"- {row.instance} | {row.engine_id} | {row.outcome} | "
+                f"expected_to_solve={row.expected_to_solve} | {row.reason}"
+            )
+
+    with md_path.open("w", encoding="utf-8") as handle:
+        handle.write("\n".join(lines) + "\n")
+
+    return json_path, md_path
+
+
+def print_final_report(
+    results: List[CaseResult],
+    started_at: str,
+    finished_at: str,
+    elapsed: float,
+    engines: List[str],
+    json_report_path: Path,
+    md_report_path: Path,
+    use_color: bool,
+) -> None:
+    total = len(results)
+    passed = sum(1 for r in results if r.passed_expectation)
+    failed = total - passed
+    validation_failures = sum(1 for r in results if r.outcome == "validation_error")
+    solved = sum(1 for r in results if r.outcome == "solved")
+    no_solution_tolerated = sum(1 for r in results if r.outcome == "no_solution_tolerated")
+    technical = sum(
+        1
+        for r in results
+        if r.outcome
+        in {
+            "poll_timeout",
+            "job_failed",
+            "http_error",
+            "network_error",
+            "parse_error",
+            "technical_error",
+            "no_solution",
+        }
+    )
+
+    print("\n")
+    print("=" * 92)
+    print("OpenBinding | Experiment execution report")
+    print("=" * 92)
+    print(f"Started (UTC):  {started_at}")
+    print(f"Finished (UTC): {finished_at}")
+    print(f"Duration:       {format_seconds(elapsed)}")
+    print(f"Engines:        {', '.join(engines)}")
+    print("-")
+    print(
+        f"Cases: {total} | "
+        f"{colored('PASS', '32', use_color)}: {passed} | "
+        f"{colored('FAIL', '31', use_color)}: {failed}"
+    )
+    print(
+        f"Outcomes -> solved: {solved}, no_solution_tolerated: {no_solution_tolerated}, validation_error: {validation_failures}, "
+        f"technical/job errors: {technical}"
+    )
+    print("-")
+    print(build_summary_tables(results))
+
+    top_failures = build_top_failures(results)
+    print("-")
+    if top_failures:
+        print("Top mismatches:")
+        for row in top_failures:
+            code_suffix = f" | codes={','.join(row.violation_codes[:3])}" if row.violation_codes else ""
+            print(
+                f"  ❌ {row.instance} | {row.engine_id} | {row.outcome} | "
+                f"expected_to_solve={row.expected_to_solve} | {row.reason}{code_suffix}"
+            )
+    else:
+        print("All expectations satisfied ✅")
+
+    print("-")
+    print(f"JSON report: {json_report_path}")
+    print(f"Markdown report: {md_report_path}")
+    print("=" * 92)
+
+
+def resolve_engines(
+    args: argparse.Namespace,
+    session: requests.Session,
+    base_url: str,
+) -> List[str]:
+    if args.engines.strip():
+        engines = sorted({e.strip() for e in args.engines.split(",") if e.strip()})
+        if not engines:
+            raise RuntimeError("No valid engine IDs provided via --engines")
+        return engines
+
+    return fetch_active_engines(
+        session=session,
+        base_url=base_url,
+        connect_timeout=float(args.connect_timeout),
+        read_timeout=float(args.poll_response_timeout),
+    )
+
+
+def print_run_header(args: argparse.Namespace, instances_count: int, engines_count: int, total_cases: int) -> None:
+    print(
+        f"Running {instances_count} instances against {engines_count} engines "
+        f"({total_cases} total cases)"
+    )
+    print(
+        "Timeouts -> "
+        f"solve: {args.solve_timeout}s, "
+        f"poll response: {args.poll_response_timeout}s, "
+        f"max poll window: {args.max_poll_seconds}s"
+    )
+
+
+def execute_cases(
+    args: argparse.Namespace,
+    session: requests.Session,
+    base_url: str,
+    instances: List[InstanceMeta],
+    engines: List[str],
+    total_cases: int,
+    use_color: bool,
+) -> Tuple[List[CaseResult], bool]:
+    results: List[CaseResult] = []
+    completed = 0
+    passed = 0
+    failed = 0
+
+    try:
+        for instance_meta in instances:
+            for engine_id in engines:
+                if args.max_cases > 0 and completed >= args.max_cases:
+                    return results, False
+
+                label = f"{instance_meta.path.name} -> {engine_id}"
+                print_progress(
+                    done=completed,
+                    total=total_cases,
+                    passed=passed,
+                    failed=failed,
+                    current_label=label,
+                    use_color=use_color,
+                )
+
+                case = run_single_case(
+                    session=session,
+                    base_url=base_url,
+                    engine_id=engine_id,
+                    instance_meta=instance_meta,
+                    connect_timeout=float(args.connect_timeout),
+                    solve_timeout=int(args.solve_timeout),
+                    poll_response_timeout=int(args.poll_response_timeout),
+                    max_poll_seconds=int(args.max_poll_seconds),
+                    poll_interval=float(args.poll_interval),
+                )
+                results.append(case)
+
+                completed += 1
+                if case.passed_expectation:
+                    passed += 1
                 else:
-                    f.write(f"**Response**:\n```json\n{json.dumps(resp, indent=2)}\n```\n")
-            
-            print_details("MiniZinc CSP", r["minizinc"])
-            if r.get("mzn_no_solution_diag"):
-                f.write("**MiniZinc No-Solution Analysis (based on RS binding)**:\n")
-                f.write("```json\n")
-                f.write(json.dumps(r["mzn_no_solution_diag"], indent=2))
-                f.write("\n```\n")
-            f.write("\n---\n")
-            print_details("Random Search", r["random_search"])
-            f.write("\n---\n")
-            print_details("Many Heuristic", r["many_heuristic"])
-            
-            f.write("\n</details>\n\n---\n")
+                    failed += 1
+
+                print_progress(
+                    done=completed,
+                    total=total_cases,
+                    passed=passed,
+                    failed=failed,
+                    current_label=label,
+                    use_color=use_color,
+                )
+
+    except KeyboardInterrupt:
+        return results, True
+
+    return results, False
+
+
+def main() -> int:
+    args = parse_args()
+    use_color = not args.no_color
+
+    base_url = sanitize_base_url(args.base_url)
+    instances_dir = Path(args.instances_dir).resolve()
+    reports_dir = Path(args.reports_dir).resolve()
+
+    started_at = now_utc_iso()
+    run_start = time.monotonic()
+
+    try:
+        instances = load_instances(instances_dir)
+    except Exception as exc:
+        print(f"Failed to load instances: {exc}", file=sys.stderr)
+        return 2
+
+    session = requests.Session()
+    session.headers.update({"Content-Type": "application/json"})
+
+    try:
+        engines = resolve_engines(args=args, session=session, base_url=base_url)
+    except Exception as exc:
+        print(f"Failed to resolve engines: {exc}", file=sys.stderr)
+        return 2
+
+    total_cases = len(instances) * len(engines)
+    if args.max_cases > 0:
+        total_cases = min(total_cases, args.max_cases)
+    print_run_header(args=args, instances_count=len(instances), engines_count=len(engines), total_cases=total_cases)
+
+    results, interrupted = execute_cases(
+        args=args,
+        session=session,
+        base_url=base_url,
+        instances=instances,
+        engines=engines,
+        total_cases=total_cases,
+        use_color=use_color,
+    )
+    if interrupted:
+        print("\nInterrupted by user. Generating partial report...", file=sys.stderr)
+
+    finished_at = now_utc_iso()
+    elapsed = time.monotonic() - run_start
+
+    json_report_path, md_report_path = write_reports(
+        reports_dir=reports_dir,
+        started_at=started_at,
+        finished_at=finished_at,
+        base_url=base_url,
+        engines=engines,
+        instances_dir=instances_dir,
+        results=results,
+        total_elapsed=elapsed,
+    )
+
+    print_final_report(
+        results=results,
+        started_at=started_at,
+        finished_at=finished_at,
+        elapsed=elapsed,
+        engines=engines,
+        json_report_path=json_report_path,
+        md_report_path=md_report_path,
+        use_color=use_color,
+    )
+
+    if not results:
+        return 3
+
+    return 0 if all(r.passed_expectation for r in results) else 1
+
 
 if __name__ == "__main__":
-    run_experiments()
+    raise SystemExit(main())
diff --git a/frontend/src/api/client.ts b/frontend/src/api/client.ts
index b0f6347..e0816b3 100644
--- a/frontend/src/api/client.ts
+++ b/frontend/src/api/client.ts
@@ -32,7 +32,12 @@ export interface ValidationError {
 export interface JobStatus {
   job_id: string;
   status: 'queued' | 'running' | 'completed' | 'failed';
-  result?: any;
+  result?: {
+    feasibility?: 'FEASIBLE' | 'INFEASIBLE' | 'UNKNOWN';
+    solutions?: Array<Record<string, unknown>>;
+    provenance?: Record<string, unknown>;
+    diagnostics?: Record<string, unknown>;
+  };
   error?: string;
 }
 
diff --git a/frontend/src/pages/Playground/Playground.tsx b/frontend/src/pages/Playground/Playground.tsx
index 77c4565..203db62 100644
--- a/frontend/src/pages/Playground/Playground.tsx
+++ b/frontend/src/pages/Playground/Playground.tsx
@@ -612,10 +612,12 @@ export function Playground() {
 // Result View Components
 function SummaryView({ result }: { result: any }) {
   const solutions = result.solutions || [];
+  const feasibility = result.feasibility;
   const emptyBindings = solutions.filter(
     (s: any) => !s.binding || Object.keys(s.binding).length === 0
   );
-  const infeasibleCount = solutions.filter((s: any) => s.is_feasible === false).length;
+  const infeasibleCount = feasibility === 'INFEASIBLE' ? 1 : 0;
+  const unknownCount = feasibility === 'UNKNOWN' ? 1 : 0;
 
   return (
     <div className="result-view summary-view">
@@ -627,6 +629,14 @@ function SummaryView({ result }: { result: any }) {
               {result.status}
             </Badge>
           </div>
+          {feasibility && (
+            <div className="summary-item" style={{ marginTop: '8px' }}>
+              <span className="summary-label">Feasibility:</span>
+              <Badge variant={feasibility === 'FEASIBLE' ? 'success' : feasibility === 'INFEASIBLE' ? 'warning' : 'accent'}>
+                {feasibility}
+              </Badge>
+            </div>
+          )}
         </Card>
       )}
 
@@ -645,6 +655,12 @@ function SummaryView({ result }: { result: any }) {
                 <span className="summary-value" style={{ color: 'var(--color-warning, #e6a700)' }}>{infeasibleCount}</span>
               </div>
             )}
+            {unknownCount > 0 && (
+              <div className="summary-item">
+                <span className="summary-label">Unknown:</span>
+                <span className="summary-value">{unknownCount}</span>
+              </div>
+            )}
           </div>
           {emptyBindings.length > 0 && (
             <Alert type="error" title="Engine Anomaly Detected">
@@ -658,10 +674,16 @@ function SummaryView({ result }: { result: any }) {
       {/* No solutions warning */}
       {result.solutions !== undefined && solutions.length === 0 && (
         <Card padding="md">
-          <Alert type="warning" title="No Feasible Solutions">
-            The engine completed without finding any feasible solution. Try relaxing constraints, 
-            increasing the solver budget, or verifying that all tasks have candidate services.
-          </Alert>
+          {feasibility === 'INFEASIBLE' ? (
+            <Alert type="warning" title="Infeasible Instance">
+              The engine completed and reported the instance as INFEASIBLE.
+            </Alert>
+          ) : (
+            <Alert type="warning" title="No Solutions Found">
+              The engine completed without a non-empty binding. For heuristic engines this usually means
+              the execution budget was insufficient.
+            </Alert>
+          )}
         </Card>
       )}
 
@@ -792,7 +814,7 @@ function SolutionsView({ result }: { result: any }) {
         const hasAggregatedFeatures = solution.aggregated_features && 
           Object.keys(solution.aggregated_features).length > 0;
         const isBindingEmpty = !solution.binding || Object.keys(solution.binding).length === 0;
-        const isInfeasible = solution.is_feasible === false;
+        const isInfeasible = result.feasibility === 'INFEASIBLE';
 
         return (
           <Card key={index} padding="md">
diff --git a/openbinding-gateway/src/openbinding_gateway/main.py b/openbinding-gateway/src/openbinding_gateway/main.py
index 6b63395..179e9c6 100644
--- a/openbinding-gateway/src/openbinding_gateway/main.py
+++ b/openbinding-gateway/src/openbinding_gateway/main.py
@@ -1,4 +1,4 @@
-from fastapi import FastAPI, HTTPException, status
+from fastapi import FastAPI, HTTPException, status, Request
 from contextlib import asynccontextmanager
 from typing import List, Dict, Any
 import json
@@ -13,7 +13,7 @@
 from .models.api import SolveRequest, SolveResponse, JobResponse, JobStatus, AnalyzeResponse, AnalyzeWarning, BindingSpaceSummary, Provenance, BindingSpaceRequest, BindingSpacePage
 from .validation.pipeline import ValidationPipeline
 from .validation.analysis import compute_binding_space_summary, generate_warnings, generate_binding_space_subset
-from .routing.router import Router
+from .routing.router import Router, PayloadTooLargeError, PAYLOAD_TOO_LARGE_MESSAGE, MAX_ENGINE_PAYLOAD_BYTES
 from .registry.engine import EngineRegistry
 import time
 
@@ -23,6 +23,8 @@ async def lifespan(app: FastAPI):
 
 app = FastAPI(title="OpenBinding Gateway", lifespan=lifespan)
 
+MAX_SOLVE_BODY_BYTES = 512 * 1024 * 1024
+
 _HEALTH_EXAMPLE = {"status": "ok"}
 
 _ENGINES_EXAMPLE = [
@@ -83,9 +85,9 @@ async def lifespan(app: FastAPI):
     "job_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
     "status": "completed",
     "result": {
+        "feasibility": "FEASIBLE",
         "solutions": [
             {
-                "is_feasible": True,
                 "objective_value": 0.0,
                 "binding": {"t1": "s2", "t2": "s4"},
                 "aggregated_features": {"cost": 20.0, "time": 60.0},
@@ -247,6 +249,15 @@ def validate_and_prepare(request: SolveRequest):
         "warnings": warnings
     }
 
+
+def _content_length_too_large(header_value: str | None, max_bytes: int) -> bool:
+    if not header_value:
+        return False
+    try:
+        return int(header_value) > max_bytes
+    except (TypeError, ValueError):
+        return False
+
 @app.post(
     "/v1/analyze",
     response_model=AnalyzeResponse,
@@ -434,7 +445,13 @@ async def analyze_binding_space(request: BindingSpaceRequest):
         },
     },
 )
-async def solve(request: SolveRequest, response: Response):
+async def solve(http_request: Request, request: SolveRequest, response: Response):
+    if _content_length_too_large(http_request.headers.get("content-length"), MAX_SOLVE_BODY_BYTES):
+        raise HTTPException(
+            status_code=status.HTTP_413_CONTENT_TOO_LARGE,
+            detail=f"Request body is too large. Maximum allowed size is {MAX_SOLVE_BODY_BYTES} bytes.",
+        )
+
     result = validate_and_prepare(request)
     
     if not result["valid"]:
@@ -475,7 +492,13 @@ async def solve(request: SolveRequest, response: Response):
     warning_payload = [w.model_dump() if hasattr(w, "model_dump") else w for w in (warnings or [])]
     
     # Hand the validated request over to the router to find a solution.
-    job_resp = await router.route_solve(request, binding_space=binding_space, warnings=warning_payload)
+    try:
+        job_resp = await router.route_solve(request, binding_space=binding_space, warnings=warning_payload)
+    except PayloadTooLargeError:
+        raise HTTPException(
+            status_code=status.HTTP_413_CONTENT_TOO_LARGE,
+            detail=PAYLOAD_TOO_LARGE_MESSAGE,
+        )
     
     if job_resp.status == JobStatus.COMPLETED or job_resp.status == JobStatus.FAILED:
         response.status_code = status.HTTP_200_OK
diff --git a/openbinding-gateway/src/openbinding_gateway/models/api.py b/openbinding-gateway/src/openbinding_gateway/models/api.py
index 1d2231b..f68519b 100644
--- a/openbinding-gateway/src/openbinding_gateway/models/api.py
+++ b/openbinding-gateway/src/openbinding_gateway/models/api.py
@@ -55,12 +55,17 @@ class ValidationViolation(BaseModel):
     description: Optional[str] = None
 
 class Solution(BaseModel):
-    is_feasible: bool = True
     objective_value: Optional[float] = None
     binding: Dict[str, str] = Field(..., description="Map of Task ID to Candidate ID")
     aggregated_features: Dict[str, float] = Field(default_factory=dict)
     violations: List[ValidationViolation] = Field(default_factory=list)
 
+
+class Feasibility(str, Enum):
+    FEASIBLE = "FEASIBLE"
+    INFEASIBLE = "INFEASIBLE"
+    UNKNOWN = "UNKNOWN"
+
 class Provenance(BaseModel):
     engine_id: str
     execution_time_ms: Optional[float] = None
@@ -88,6 +93,7 @@ class AnalyzeResponse(BaseModel):
     error: Optional[str] = None
 
 class SolveResponse(BaseModel):
+    feasibility: Feasibility = Feasibility.UNKNOWN
     solutions: List[Solution]
     provenance: Provenance
     diagnostics: Optional[Dict[str, Any]] = Field(default=None, description="Diagnostic information. May include 'binding_space' if verbose=True.")
diff --git a/openbinding-gateway/src/openbinding_gateway/routing/router.py b/openbinding-gateway/src/openbinding_gateway/routing/router.py
index be5b92d..a7fce85 100644
--- a/openbinding-gateway/src/openbinding_gateway/routing/router.py
+++ b/openbinding-gateway/src/openbinding_gateway/routing/router.py
@@ -1,26 +1,69 @@
 import asyncio
 import httpx
+import json
 from typing import Optional, Any
 from ..registry.engine import EngineRegistry
-from ..models.api import SolveRequest, SolveResponse, ValidationViolation
-from ..models.api import JobResponse, JobStatus
+from ..models.api import SolveRequest, SolveResponse
+from ..models.api import JobResponse, JobStatus, Feasibility
 from ..jobs import JobManager
 
+MAX_ENGINE_PAYLOAD_BYTES = 512 * 1024 * 1024
+PAYLOAD_TOO_LARGE_MESSAGE = (
+    f"Request body is too large. Maximum allowed size is {MAX_ENGINE_PAYLOAD_BYTES} bytes."
+)
+
+
+class PayloadTooLargeError(RuntimeError):
+    pass
+
 class Router:
+    def _payload_size_bytes(self, payload: Any) -> int:
+        return len(json.dumps(payload, separators=(",", ":")).encode("utf-8"))
+
+    def _is_exact_engine(self, engine_id: str) -> bool:
+        try:
+            plugin = EngineRegistry.get_plugin(engine_id)
+            capabilities = plugin.get_capabilities() or {}
+            engine_type = str(capabilities.get("type", "")).upper()
+            return engine_type == "EXACT"
+        except Exception:
+            return False
+
+    def _has_non_empty_binding_solution(self, result_data: dict) -> bool:
+        solutions = result_data.get("solutions", []) or []
+        for solution in solutions:
+            if not isinstance(solution, dict):
+                continue
+            binding = solution.get("binding") or {}
+            if isinstance(binding, dict) and len(binding) > 0:
+                return True
+        return False
+
+    def _compute_feasibility(self, engine_id: str, result_data: dict) -> Feasibility:
+        if self._has_non_empty_binding_solution(result_data):
+            return Feasibility.FEASIBLE
+        if self._is_exact_engine(engine_id):
+            return Feasibility.INFEASIBLE
+        return Feasibility.UNKNOWN
+
     async def route_solve(self, request: SolveRequest, binding_space: Optional[Any] = None, warnings: Optional[list] = None) -> JobResponse:
         plugin = EngineRegistry.get_plugin(request.engine_id)
         if not plugin:
             raise ValueError(f"Engine {request.engine_id} not found")
             
         service_url = EngineRegistry.get_url(request.engine_id)
+        all_warnings = (warnings or [])
         
         async with httpx.AsyncClient() as client:
             try:
                 # Apply Plugin Transformation
                 payload, plugin_warnings = plugin.transform_request(request.instance, request.options)
+
+                if self._payload_size_bytes(payload) > MAX_ENGINE_PAYLOAD_BYTES:
+                    raise PayloadTooLargeError(PAYLOAD_TOO_LARGE_MESSAGE)
                 
                 # Merge warnings
-                all_warnings = (warnings or []) + (plugin_warnings or [])
+                all_warnings = all_warnings + (plugin_warnings or [])
 
                 # Forward to Engine's /solve
                 data = None
@@ -50,9 +93,15 @@ async def route_solve(self, request: SolveRequest, binding_space: Optional[Any]
                     raise RuntimeError("Failed to contact engine")
                 
                 # Check for sync response
-                if "job_id" not in data and "selection" in data:
+                # Some engines may return selection at top-level or wrapped under result.solution
+                sync_selection = data.get("selection")
+                if sync_selection is None:
+                    sync_selection = ((data.get("result") or {}).get("solution") or {}).get("selection")
+
+                if "job_id" not in data and sync_selection is not None:
                      # It's a synchronous result
                      result_data = plugin.transform_response(data, request.instance)
+                     feasibility = self._compute_feasibility(request.engine_id, result_data)
                      
                      job = JobManager.create_job(request.engine_id, "sync", service_url)
                      job.status = JobStatus.COMPLETED
@@ -69,6 +118,7 @@ async def route_solve(self, request: SolveRequest, binding_space: Optional[Any]
                          job_id=job.id,
                          status=JobStatus.COMPLETED,
                          result=SolveResponse(
+                                     feasibility=feasibility,
                             solutions=result_data.get("solutions", []),
                             provenance=result_data.get("provenance"),
                             diagnostics=diagnostics if diagnostics else None
@@ -84,6 +134,7 @@ async def route_solve(self, request: SolveRequest, binding_space: Optional[Any]
                 job = JobManager.create_job(request.engine_id, engine_job_id, service_url)
                 job.metadata["warnings"] = all_warnings
                 job.metadata["verbose"] = request.verbose
+                job.metadata["original_request"] = request.instance
                 if binding_space:
                     job.metadata["binding_space"] = binding_space
                 
@@ -93,6 +144,9 @@ async def route_solve(self, request: SolveRequest, binding_space: Optional[Any]
                 )
                 
             except httpx.HTTPStatusError as e:
+                if e.response.status_code == 413:
+                    raise PayloadTooLargeError(PAYLOAD_TOO_LARGE_MESSAGE)
+
                 # Handle 422 from Random Search as No Solution
                 if e.response.status_code == 422:
                      try:
@@ -103,6 +157,7 @@ async def route_solve(self, request: SolveRequest, binding_space: Optional[Any]
                              job.status = JobStatus.COMPLETED
                              
                              result = SolveResponse(
+                                 feasibility=Feasibility.INFEASIBLE if self._is_exact_engine(request.engine_id) else Feasibility.UNKNOWN,
                                  solutions=[],
                                  provenance={
                                      "engine_id": request.engine_id,
@@ -162,7 +217,9 @@ async def get_job_status(self, job_id: str) -> Optional[JobResponse]:
                 result = None
                 if engine_status == "completed" or engine_status == "optimized":
                     plugin = EngineRegistry.get_plugin(job.engine_id)
-                    result_data = plugin.transform_response(data, {}) 
+                    original_request = job.metadata.get("original_request") or {}
+                    result_data = plugin.transform_response(data, original_request)
+                    feasibility = self._compute_feasibility(job.engine_id, result_data)
                     
                     diagnostics = {}
                     verbose = job.metadata.get("verbose", False)
@@ -177,6 +234,7 @@ async def get_job_status(self, job_id: str) -> Optional[JobResponse]:
                            diagnostics["binding_space"] = binding_space
 
                     result = SolveResponse(
+                        feasibility=feasibility,
                         solutions=result_data.get("solutions", []),
                         provenance=result_data.get("provenance"),
                         diagnostics=diagnostics if diagnostics else None
diff --git a/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/many_heuristic.py b/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/many_heuristic.py
index a7f0367..c0f3e0d 100644
--- a/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/many_heuristic.py
+++ b/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/many_heuristic.py
@@ -25,6 +25,7 @@ def get_capabilities(self) -> Dict[str, Any]:
             "composition_nodes_supported": ["TASK", "SEQ", "AND", "XOR", "LOOP"],
             "objective_types_supported": ["MANY"],
             "constraints_supported": ["attribute_bound", "dependency"],
+            "type": "HEURISTIC",
             "schema_version": "v1"
         }
 
@@ -193,7 +194,7 @@ def transform_response(self, engine_response: Dict[str, Any], original_request:
             agg_qos = compute_aggregated_qos(root, features, sel_cand, agg_policies)
             
             mapped_solutions.append({
-                "is_feasible": sol.get("is_feasible", True), "binding": sel,
+                "binding": sel,
                 "aggregated_features": agg_qos, "violations": [], "objective_value": 0.0
             })
 
diff --git a/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/minizinc_csp.py b/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/minizinc_csp.py
index 0f233ee..410d97c 100644
--- a/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/minizinc_csp.py
+++ b/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/minizinc_csp.py
@@ -6,6 +6,17 @@
 from ...models.api import ValidationViolation
 
 class MiniZincCSPEnginePlugin(EngineValidationPlugin):
+    _SUPPORTED_AGGREGATION_FUNCS = {
+        "sum",
+        "max",
+        "min",
+        "product",
+        "weighted_sum",
+        "scaled_sum",
+        "scaled_product",
+        "scale_by_c",
+    }
+
     async def check_engine_health(self, base_url: str, client: httpx.AsyncClient) -> bool:
         url = f"{base_url.rstrip('/')}/health"
         try:
@@ -17,9 +28,10 @@ async def check_engine_health(self, base_url: str, client: httpx.AsyncClient) ->
     def get_capabilities(self) -> Dict[str, Any]:
         return {
             "qos_features_supported": ["*"],
-            "composition_nodes_supported": ["TASK", "SEQ", "AND", "XOR", "LOOP"],
-            "objective_types_supported": ["weighted_sum"],
+            "composition_nodes_supported": ["TASK", "SEQ", "AND", "XOR", "LOOP", "ELEMENT"],
+            "objective_types_supported": ["MONO"],
             "constraints_supported": ["attribute_bound", "dependency"], 
+            "type": "EXACT",
             "schema_version": "v1"
         }
 
@@ -44,9 +56,10 @@ def validate_semantics(self, instance: Dict[str, Any]) -> List[ValidationViolati
         # but requirements ask to enforce explicitly via capabilities in Stage 4.
         
         comp = instance.get("composition", {})
-        if comp.get("type") == "structured":
+        comp_type = str(comp.get("type", "")).upper()
+        if comp_type == "STRUCTURED":
             violations.extend(self._validate_node(comp.get("root", {})))
-        elif comp.get("type") == "dag":
+        elif comp_type == "DAG":
              # DAG supported if nodes are supported
              nodes = comp.get("nodes", [])
              for n in nodes:
@@ -85,7 +98,7 @@ def validate_semantics(self, instance: Dict[str, Any]) -> List[ValidationViolati
         agg_policies = instance.get("aggregation_policies", {})
         for attr, policy in agg_policies.items():
             compose = policy.get("compose", {})
-            for kind in compose.keys():
+            for kind, cfg in compose.items():
                 # Map schema keys (seq, and, xor, loop) to capability kinds
                 # Capabilities: TASK, SEQ, AND, XOR
                 # Schema: seq, and, xor, loop
@@ -102,6 +115,22 @@ def validate_semantics(self, instance: Dict[str, Any]) -> List[ValidationViolati
                          code="engine_unsupported_aggregation_operator",
                          path=f"aggregation_policies.{attr}.compose.{kind}"
                      ))
+
+                fn = str((cfg or {}).get("fn", "")).strip().lower()
+                if fn and fn not in self._SUPPORTED_AGGREGATION_FUNCS:
+                    violations.append(ValidationViolation(
+                        message=f"Engine does not support aggregation function '{fn}' for attribute '{attr}' in operator '{kind}'",
+                        code="engine_unsupported_aggregation_function",
+                        path=f"aggregation_policies.{attr}.compose.{kind}.fn"
+                    ))
+
+                # MiniZinc model treats xor=sum as weighted sum; explicit check to avoid silent mismatch
+                if kind == "xor" and fn == "sum":
+                    violations.append(ValidationViolation(
+                        message="Use 'weighted_sum' for XOR aggregation in MiniZinc to match branch probabilities",
+                        code="engine_ambiguous_xor_sum",
+                        path=f"aggregation_policies.{attr}.compose.xor.fn"
+                    ))
         
         return violations
 
@@ -132,7 +161,8 @@ def transform_request(self, instance: Dict[str, Any], options: Dict[str, Any] =
         warnings = []
         if options:
             for k in options.keys():
-                warnings.append(f"Option '{k}' is not supported by MiniZinc engine")
+                if k not in {"debug", "solver"}:
+                    warnings.append(f"Option '{k}' is not supported by MiniZinc engine")
         
         return {
             "instance": instance,
@@ -146,6 +176,12 @@ def transform_response(self, engine_response: Dict[str, Any], original_request:
         if not engine_result:
             engine_result = engine_response
         old_sol = engine_result.get("solution", {})
+        raw_violations = engine_result.get("violations", []) or []
+        diagnostics = engine_result.get("diagnostics") or {}
+
+        if raw_violations:
+            diagnostics = dict(diagnostics)
+            diagnostics["engine_violations"] = raw_violations
         
         # If no solution found or empty
         if not old_sol:
@@ -155,7 +191,8 @@ def transform_response(self, engine_response: Dict[str, Any], original_request:
                     "engine_id": "minizinc-csp",
                     "execution_time_ms": 0,
                     "metadata": {}
-                }
+                },
+                "diagnostics": diagnostics if diagnostics else None
             }
 
         # Transform Selection -> Binding
@@ -217,6 +254,15 @@ def transform_response(self, engine_response: Dict[str, Any], original_request:
                 "penalty": v.get("penalty_applied", 0),
                 "description": f"Slack: {v.get('slack')}"
             })
+
+        for v in raw_violations:
+            violations.append({
+                "constraint_id": v.get("constraint_id"),
+                "message": v.get("message", "Engine violation"),
+                "code": v.get("code", "engine_violation"),
+                "penalty": v.get("penalty_applied", 0),
+                "description": v.get("description")
+            })
         
         # Construct new Solution
         # Construct new Solution
@@ -224,11 +270,17 @@ def transform_response(self, engine_response: Dict[str, Any], original_request:
             return {
                 "solutions": [],
                 "provenance": provenance,
-                "diagnostics": engine_result.get("diagnostics")
+                "diagnostics": diagnostics if diagnostics else None
+            }
+
+        if not selection:
+            return {
+                "solutions": [],
+                "provenance": provenance,
+                "diagnostics": diagnostics if diagnostics else None
             }
 
         new_sol = {
-            "is_feasible": old_sol.get("feasible", True), 
             "objective_value": old_sol.get("objective_value"),
             "binding": selection,
             "aggregated_features": aggregated_qos, # Computed in gateway
@@ -238,5 +290,5 @@ def transform_response(self, engine_response: Dict[str, Any], original_request:
         return {
             "solutions": [new_sol],
             "provenance": provenance,
-            "diagnostics": engine_result.get("diagnostics") 
+            "diagnostics": diagnostics if diagnostics else None
         }
diff --git a/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/random_search.py b/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/random_search.py
index b728745..6757aeb 100644
--- a/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/random_search.py
+++ b/openbinding-gateway/src/openbinding_gateway/validation/engine_plugins/random_search.py
@@ -23,8 +23,9 @@ def get_capabilities(self) -> Dict[str, Any]:
         return {
             "qos_features_supported": ["*"],
             "composition_nodes_supported": ["TASK", "SEQ", "AND", "XOR", "LOOP"],
-            "objective_types_supported": ["weighted_sum"],
+            "objective_types_supported": ["MONO"],
             "constraints_supported": ["attribute_bound", "dependency"],
+            "type": "HEURISTIC",
             "schema_version": "v1"
         }
 
@@ -362,7 +363,6 @@ def transform_response(self, engine_response: Dict[str, Any], original_request:
         objective_value = compute_objective_value(obj, normalized_qos)
 
         # Evaluate constraints for reporting
-        feasible = True
         violations = []
         
         def _check_bound(current: float, op: str, rhs_f: float):
@@ -406,9 +406,6 @@ def _check_bound(current: float, op: str, rhs_f: float):
                     current = float((cand.get("features", {}) or {}).get(fid, 0.0))
                     ok, slack = _check_bound(current, op, rhs_f)
                     if not ok:
-                        hard = bool(c.get("hard", True))
-                        if hard:
-                            feasible = False
                         violations.append({
                             "constraint_id": c.get("id"),
                             "slack": float(slack),
@@ -421,9 +418,6 @@ def _check_bound(current: float, op: str, rhs_f: float):
             ok, slack = _check_bound(current, op, rhs_f)
 
             if not ok:
-                hard = bool(c.get("hard", True))
-                if hard:
-                    feasible = False
                 violations.append({
                     "constraint_id": c.get("id"),
                     "slack": float(slack),
@@ -452,7 +446,6 @@ def _check_bound(current: float, op: str, rhs_f: float):
         }
 
         new_sol = {
-            "is_feasible": feasible,
             "objective_value": objective_value,
             "binding": selection,
             "aggregated_features": aggregated_qos,
diff --git a/openbinding-gateway/tests/integration/test_huge_scale.py b/openbinding-gateway/tests/integration/test_huge_scale.py
index ab4ffc8..50fcd10 100644
--- a/openbinding-gateway/tests/integration/test_huge_scale.py
+++ b/openbinding-gateway/tests/integration/test_huge_scale.py
@@ -152,11 +152,12 @@ def solve(gateway_url, wait_for_job, engine, instance):
     
     result = job.get("result", {})
     solutions = result.get("solutions", [])
+    feasibility = str(result.get("feasibility") or "UNKNOWN").upper()
     if not solutions:
-        return {"is_feasible": False, "binding": {}, "objective_value": None}
+        return {"feasibility": feasibility, "binding": {}, "objective_value": None}
     sol = solutions[0]
     return {
-        "is_feasible": sol.get("is_feasible", False),
+        "feasibility": feasibility,
         "binding": sol.get("binding", {}),
         "objective_value": sol.get("objective_value")
     }
@@ -166,13 +167,13 @@ def test_huge_minizinc(gateway_url, wait_for_job):
     """Verify huge instance with complex constraints on MiniZinc."""
     inst = create_huge_instance("minizinc")
     sol = solve(gateway_url, wait_for_job, "minizinc-csp", inst)
-    assert sol["is_feasible"], "MiniZinc huge instance should be feasible"
+    assert sol["feasibility"] == "FEASIBLE", "MiniZinc huge instance should be feasible"
 
 # @pytest.mark.skip(reason="Huge scale tests timeout due to complex schema and large binding space")
 def test_huge_random(gateway_url, wait_for_job):
     """Verify huge instance with global constraints on Random Search."""
     inst = create_huge_instance("random")
-    sol = solve(gateway_url, wait_for_job, "random-search", inst)
+    solve(gateway_url, wait_for_job, "random-search", inst)
     # Random search might struggle to find feasible if constraints strict and space huge.
 
 # @pytest.mark.skip(reason="Huge scale tests timeout due to complex schema and large binding space")
@@ -181,6 +182,6 @@ def test_huge_common_comparison(gateway_url, wait_for_job):
     inst = create_huge_instance("common")
     
     sol_mz = solve(gateway_url, wait_for_job, "minizinc-csp", inst)
-    sol_rs = solve(gateway_url, wait_for_job, "random-search", inst)
+    solve(gateway_url, wait_for_job, "random-search", inst)
     
-    assert sol_mz["is_feasible"], "MiniZinc should have no trouble with this relaxed instance."
+    assert sol_mz["feasibility"] == "FEASIBLE", "MiniZinc should have no trouble with this relaxed instance."
diff --git a/openbinding-gateway/tests/integration/test_operators.py b/openbinding-gateway/tests/integration/test_operators.py
index f5a2951..b23dc50 100644
--- a/openbinding-gateway/tests/integration/test_operators.py
+++ b/openbinding-gateway/tests/integration/test_operators.py
@@ -88,13 +88,14 @@ def test_global_operators(gateway_url, wait_for_job, engine, op, val, expected_f
     
     result = job.get("result", {})
     solutions = result.get("solutions", [])
+    feasibility = str(result.get("feasibility") or "UNKNOWN").upper()
     
     if not solutions:
-        feasible = False
+        feasible = feasibility == "FEASIBLE"
         selection = {}
     else:
         sol = solutions[0]
-        feasible = sol.get("is_feasible", False)
+        feasible = feasibility == "FEASIBLE"
         selection = sol.get("binding", {})
     
     assert feasible == expected_feasible
@@ -146,13 +147,14 @@ def test_local_operators(gateway_url, wait_for_job, engine, op, val, expected_fe
         job = wait_for_job(job_id)
     result = job.get("result", {})
     solutions = result.get("solutions", [])
+    feasibility = str(result.get("feasibility") or "UNKNOWN").upper()
     
     if not solutions:
-        feasible = False
+        feasible = feasibility == "FEASIBLE"
         selection = {}
     else:
         sol = solutions[0]
-        feasible = sol.get("is_feasible", False)
+        feasible = feasibility == "FEASIBLE"
         selection = sol.get("binding", {})
     
     assert feasible == expected_feasible
diff --git a/openbinding-gateway/tests/integration/test_optimality.py b/openbinding-gateway/tests/integration/test_optimality.py
index f3fea9b..2682146 100644
--- a/openbinding-gateway/tests/integration/test_optimality.py
+++ b/openbinding-gateway/tests/integration/test_optimality.py
@@ -34,6 +34,46 @@ def create_instance(**overrides) -> dict:
         instance[key] = value
     return instance
 
+
+def _extract_solution_data(result: dict):
+    solutions = result.get("solutions", [])
+    feasibility = str(result.get("feasibility") or "UNKNOWN").upper()
+    if not solutions:
+        return feasibility == "FEASIBLE", {}, None
+
+    first = solutions[0]
+    return (
+        feasibility == "FEASIBLE",
+        first.get("binding", {}),
+        first.get("objective_value"),
+    )
+
+
+def _assert_objective_matches(instance: dict, obj: float, expected_objective: float) -> None:
+    if expected_objective is None or obj is None:
+        return
+
+    norm_exp = expected_objective / 1000.0
+
+    vr_max = None
+    feats = instance.get("features", [])
+    if len(feats) == 1:
+        vr = feats[0].get("valid_range") or {}
+        vr_max = vr.get("max")
+    norm_exp_max = expected_objective / vr_max if vr_max else None
+
+    raw_match = abs(obj - expected_objective) < 1e-4
+    norm_match = abs(obj - norm_exp) < 1e-4
+    norm_max_match = norm_exp_max is not None and abs(obj - norm_exp_max) < 1e-4
+
+    if raw_match or norm_match or norm_max_match:
+        return
+
+    expected_msg = f"{expected_objective} (raw) or {norm_exp} (norm)"
+    if norm_exp_max is not None:
+        expected_msg += f" or {norm_exp_max} (max-norm)"
+    pytest.fail(f"Objective mismatch. Got {obj}, expected {expected_msg}")
+
 def run_test(gateway_url, wait_for_job, engine, instance, expected_selection, expected_objective, expect_feasible=True):
     """Run test helper."""
     res = requests.post(f"{gateway_url}/v1/solve", json={
@@ -53,17 +93,7 @@ def run_test(gateway_url, wait_for_job, engine, instance, expected_selection, ex
          pytest.fail(f"Job failed: {job.get('error')}")
 
     result = job.get("result", {})
-    solutions = result.get("solutions", [])
-    
-    if not solutions:
-        feasible = False
-        selection = {}
-        obj = None
-    else:
-        sol = solutions[0]
-        feasible = sol.get("is_feasible", False)
-        selection = sol.get("binding", {})
-        obj = sol.get("objective_value")
+    feasible, selection, obj = _extract_solution_data(result)
     
     assert feasible == expect_feasible
     
@@ -72,33 +102,8 @@ def run_test(gateway_url, wait_for_job, engine, instance, expected_selection, ex
             # Only check expected tasks
             filtered_selection = {k: v for k, v in selection.items() if k in expected_selection}
             assert filtered_selection == expected_selection
-        
-        if expected_objective is not None and obj is not None:
-             # Normalize expected based on observed engine behavior
-             # MiniZinc returns 0.02 for 20 (Factor 1000)
-             # Random Search returns 20.0 for 20 (Factor 1)
-             
-             
-             # Factor 1000 check (legacy behavior)
-             norm_exp = expected_objective / 1000.0
-             
-             # Minizinc can normalize by valid_range max
-             vr_max = None
-             feats = instance.get("features", [])
-             if len(feats) == 1:
-                 vr = feats[0].get("valid_range") or {}
-                 vr_max = vr.get("max")
-             norm_exp_max = expected_objective / vr_max if vr_max else None
-             
-             raw_match = abs(obj - expected_objective) < 1e-4
-             norm_match = abs(obj - norm_exp) < 1e-4
-             norm_max_match = norm_exp_max is not None and abs(obj - norm_exp_max) < 1e-4
-             
-             if not raw_match and not norm_match and not norm_max_match:
-                 expected_msg = f"{expected_objective} (raw) or {norm_exp} (norm)"
-                 if norm_exp_max is not None:
-                     expected_msg += f" or {norm_exp_max} (max-norm)"
-                 pytest.fail(f"Objective mismatch. Got {obj}, expected {expected_msg}")
+
+        _assert_objective_matches(instance, obj, expected_objective)
 
 # --- TESTS ---
 
diff --git a/openbinding-gateway/tests/test_analysis.py b/openbinding-gateway/tests/test_analysis.py
index 7472353..4ee5c90 100644
--- a/openbinding-gateway/tests/test_analysis.py
+++ b/openbinding-gateway/tests/test_analysis.py
@@ -3,7 +3,7 @@
 from openbinding_gateway.validation.analysis import compute_binding_space_summary, generate_warnings
 from openbinding_gateway.models.api import BindingSpaceSummary, AnalyzeWarning
 from fastapi.testclient import TestClient
-from openbinding_gateway.main import app
+from openbinding_gateway.main import app, _content_length_too_large
 import json
 
 # === Unit Tests for Analysis Logic ===
@@ -142,3 +142,57 @@ def test_solve_endpoint_not_verbose(mock_registry, mock_pipeline, mock_router):
     data = response.json()
     assert "job_id" in data
     assert data["job_id"] == "test_job"
+
+
+def test_content_length_too_large_helper():
+    assert _content_length_too_large("100", 50) is True
+    assert _content_length_too_large("50", 50) is False
+    assert _content_length_too_large(None, 50) is False
+    assert _content_length_too_large("invalid", 50) is False
+
+
+def test_solve_rejects_oversized_content_length_header(mock_registry, mock_pipeline):
+    payload = {
+        "engine_id": "mock_engine",
+        "instance": {
+            "tasks": [{"id": "t1"}],
+            "candidates": [{"id": "c1", "task_id": "t1"}]
+        },
+        "verbose": False
+    }
+
+    with patch("openbinding_gateway.main.MAX_SOLVE_BODY_BYTES", 1):
+        response = client.post("/v1/solve", json=payload)
+
+    assert response.status_code == 413
+    assert "Request body is too large" in response.json().get("detail", "")
+
+
+def test_solve_rejects_oversized_transformed_payload(mock_pipeline):
+    oversized_payload = {"blob": "x" * 5000}
+
+    with patch("openbinding_gateway.main.router") as mocked_router, \
+         patch("openbinding_gateway.main.MAX_SOLVE_BODY_BYTES", 10 * 1024 * 1024), \
+         patch("openbinding_gateway.routing.router.MAX_ENGINE_PAYLOAD_BYTES", 1024), \
+         patch("openbinding_gateway.registry.engine.EngineRegistry.get_plugin") as mock_plugin_getter, \
+         patch("openbinding_gateway.registry.engine.EngineRegistry.get_url", return_value="http://mock-engine"):
+        plugin = MagicMock()
+        plugin.transform_request.return_value = (oversized_payload, [])
+        mock_plugin_getter.return_value = plugin
+
+        from openbinding_gateway.routing.router import Router
+        mocked_router.route_solve = Router().route_solve
+
+        payload = {
+            "engine_id": "mock_engine",
+            "instance": {
+                "tasks": [{"id": "t1"}],
+                "candidates": [{"id": "c1", "task_id": "t1"}]
+            },
+            "verbose": False
+        }
+
+        response = client.post("/v1/solve", json=payload)
+
+    assert response.status_code == 413
+    assert "Request body is too large" in response.json().get("detail", "")
diff --git a/openbinding-gateway/tests/test_plugin_transformation.py b/openbinding-gateway/tests/test_plugin_transformation.py
index 2288d1a..70f0954 100644
--- a/openbinding-gateway/tests/test_plugin_transformation.py
+++ b/openbinding-gateway/tests/test_plugin_transformation.py
@@ -30,7 +30,6 @@ def test_minizinc_response_feasible(minizinc_plugin):
     # Pass dummy request
     new_sol = minizinc_plugin.transform_response(old_sol, {"composition": {"root": {}}})
     assert len(new_sol["solutions"]) == 1
-    assert new_sol["solutions"][0]["is_feasible"] is True
     assert new_sol["solutions"][0]["binding"] == {"t1": "c1"}
 
 def test_minizinc_response_unfeasible(minizinc_plugin):
@@ -47,6 +46,53 @@ def test_minizinc_response_unfeasible(minizinc_plugin):
     # Expect empty list for standard "No Solution Found"
     assert new_sol["solutions"] == []
 
+
+def test_minizinc_response_feasible_but_empty_selection(minizinc_plugin):
+    """A feasible response without binding must be treated as no-solution."""
+    old_sol = {
+        "solution": {
+            "feasible": True,
+            "selection": {},
+            "objective_value": 10,
+        },
+        "provenance": {},
+    }
+    new_sol = minizinc_plugin.transform_response(old_sol, {"composition": {"root": {}}})
+    assert new_sol["solutions"] == []
+
+def test_minizinc_response_propagates_engine_violations(minizinc_plugin):
+    old_sol = {
+        "result": {
+            "solution": {
+                "feasible": False,
+                "selection": None,
+                "objective_value": None,
+            },
+            "violations": [
+                {"code": "solver_error", "message": "MiniZinc failed"}
+            ],
+            "diagnostics": {"reason": "non_zero_exit"},
+        }
+    }
+
+    new_sol = minizinc_plugin.transform_response(old_sol, {"composition": {"root": {}}})
+    assert new_sol["solutions"] == []
+    assert new_sol["diagnostics"]["reason"] == "non_zero_exit"
+    assert new_sol["diagnostics"]["engine_violations"][0]["code"] == "solver_error"
+
+def test_minizinc_transform_request_allows_debug_and_solver_options(minizinc_plugin):
+    req = {
+        "composition": {"root": {"kind": "TASK", "task_id": "t1"}},
+        "tasks": [{"id": "t1"}],
+        "candidates": [],
+        "features": [],
+        "aggregation_policies": {},
+        "objective": {"type": "MONO"},
+    }
+
+    _, warnings = minizinc_plugin.transform_request(req, {"debug": True, "solver": "gecode"})
+    assert warnings == []
+
 # --- Random Search Tests ---
 
 def test_random_search_request_dependency(random_search_plugin):