Iteration final - SOLVER_EXECUTION
Sequence: 6
Timestamp: 2025-07-25 22:27:23

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

Response:
{
  "gurobipy": {
    "solver_type": "gurobipy",
    "execution_time": 0.19307255744934082,
    "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 8 rows, 15 columns and 30 nonzeros\nModel fingerprint: 0xd09ab9d6\nVariable types: 0 continuous, 15 integer (15 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [4e+00, 4e+00]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 5e+00]\nFound heuristic solution: objective 19.7000000\nPresolve removed 8 rows and 15 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 2: 21.2 19.7 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 2.120000000000e+01, best bound 2.120000000000e+01, gap 0.0000%\nOptimal value: 21.200000000000003\nTeacher T1 assigned to course C1\nTeacher T1 assigned to course C5\nTeacher T2 assigned to course C2\nTeacher T2 assigned to course C4\nTeacher T3 assigned to course C3\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 21.200000000000003,
    "error_message": null,
    "decision_variables": {}
  },
  "docplex": {
    "solver_type": "docplex",
    "execution_time": 1.1786596775054932,
    "return_code": 0,
    "stdout": "Optimal value: 21.3\nTeacher T1 is assigned to course C1\nTeacher T1 is assigned to course C5\nTeacher T2 is assigned to course C2\nTeacher T2 is assigned to course C4\nTeacher T3 is assigned to course C3\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 21.3,
    "error_message": null,
    "decision_variables": {}
  },
  "pyomo": {
    "solver_type": "pyomo",
    "execution_time": 0.8762619495391846,
    "return_code": 0,
    "stdout": "Read LP format model from file /tmp/tmp9oc7mtpp.pyomo.lp\nReading time = 0.00 seconds\nx1: 8 rows, 15 columns, 30 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 8 rows, 15 columns and 30 nonzeros\nModel fingerprint: 0x3d8040fc\nVariable types: 0 continuous, 15 integer (15 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [4e+00, 4e+00]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 5e+00]\nFound heuristic solution: objective 19.8000000\nPresolve removed 8 rows and 15 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 2: 21.3 19.8 \n\nOptimal solution found (tolerance 1.00e-02)\nBest objective 2.130000000000e+01, best bound 2.130000000000e+01, gap 0.0000%\nOptimal solution found!\nOptimal value: 21.299999999999997\n\nAssignment details:\nTeacher T1 is assigned to course C1\nTeacher T1 is assigned to course C5\nTeacher T2 is assigned to course C2\nTeacher T2 is assigned to course C4\nTeacher T3 is assigned to course C3\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 21.299999999999997,
    "error_message": null,
    "decision_variables": {}
  }
}
