Iteration final - SOLVER_EXECUTION
Sequence: 6
Timestamp: 2025-07-25 22:28:10

Prompt:
Generated solver codes with templates and executed them with retry logic

Response:
{
  "gurobipy": {
    "solver_type": "gurobipy",
    "execution_time": 0.18482089042663574,
    "return_code": 0,
    "stdout": "Restricted license - for non-production use only - expires 2026-11-23\nGurobi Optimizer version 12.0.2 build v12.0.2rc0 (linux64 - \"Red Hat Enterprise Linux 9.4 (Plow)\")\n\nCPU model: AMD EPYC 7513 32-Core Processor, instruction set [SSE2|AVX|AVX2]\nThread count: 64 physical cores, 128 logical processors, using up to 32 threads\n\nOptimize a model with 9 rows, 18 columns and 36 nonzeros\nModel fingerprint: 0x5588e7da\nVariable types: 0 continuous, 18 integer (18 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [1e+00, 1e+00]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 2e+01]\nFound heuristic solution: objective 9.0000000\nPresolve removed 9 rows and 18 columns\nPresolve time: 0.00s\nPresolve: All rows and columns removed\n\nExplored 0 nodes (0 simplex iterations) in 0.00 seconds (0.00 work units)\nThread count was 1 (of 128 available processors)\n\nSolution count 1: 9 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%\nOptimal value: 9.0\nStudent 101 participates in activity 2\nStudent 102 participates in activity 3\nStudent 103 participates in activity 3\nFaculty 201 participates in activity 2\nFaculty 201 participates in activity 3\nFaculty 202 participates in activity 2\nFaculty 202 participates in activity 3\nFaculty 203 participates in activity 1\nFaculty 203 participates in activity 3\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 9.0,
    "error_message": null,
    "decision_variables": {}
  },
  "docplex": {
    "solver_type": "docplex",
    "execution_time": 1.1264636516571045,
    "return_code": 0,
    "stdout": "Optimal value: 9.0\nStudent 101 participates in activity 1\nStudent 102 participates in activity 1\nStudent 103 participates in activity 1\nFaculty 201 participates in activity 1\nFaculty 201 participates in activity 2\nFaculty 202 participates in activity 1\nFaculty 202 participates in activity 2\nFaculty 203 participates in activity 1\nFaculty 203 participates in activity 2\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 9.0,
    "error_message": null,
    "decision_variables": {}
  },
  "pyomo": {
    "solver_type": "pyomo",
    "execution_time": 0.9407973289489746,
    "return_code": 0,
    "stdout": "Read LP format model from file /tmp/tmpcyjej2mo.pyomo.lp\nReading time = 0.00 seconds\nx1: 9 rows, 18 columns, 36 nonzeros\nSet parameter TimeLimit to value 300\nSet parameter MIPGap to value 0.01\nGurobi Optimizer version 12.0.2 build v12.0.2rc0 (linux64 - \"Red Hat Enterprise Linux 9.4 (Plow)\")\n\nCPU model: AMD EPYC 7513 32-Core Processor, instruction set [SSE2|AVX|AVX2]\nThread count: 64 physical cores, 128 logical processors, using up to 32 threads\n\nNon-default parameters:\nTimeLimit  300\nMIPGap  0.01\n\nOptimize a model with 9 rows, 18 columns and 36 nonzeros\nModel fingerprint: 0x5588e7da\nVariable types: 0 continuous, 18 integer (18 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [1e+00, 1e+00]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 2e+01]\nFound heuristic solution: objective 9.0000000\nPresolve removed 9 rows and 18 columns\nPresolve time: 0.00s\nPresolve: All rows and columns removed\n\nExplored 0 nodes (0 simplex iterations) in 0.00 seconds (0.00 work units)\nThread count was 1 (of 128 available processors)\n\nSolution count 1: 9 \n\nOptimal solution found (tolerance 1.00e-02)\nBest objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%\nOptimal value: 9.0\n\nStudent Participation:\nStudent 101 participates in activity 2\nStudent 102 participates in activity 3\nStudent 103 participates in activity 3\n\nFaculty Participation:\nFaculty 201 participates in activity 2\nFaculty 201 participates in activity 3\nFaculty 202 participates in activity 2\nFaculty 202 participates in activity 3\nFaculty 203 participates in activity 1\nFaculty 203 participates in activity 3\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 9.0,
    "error_message": null,
    "decision_variables": {}
  }
}
