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

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

Response:
{
  "gurobipy": {
    "solver_type": "gurobipy",
    "execution_time": 0.280747652053833,
    "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 13 rows, 27 columns and 81 nonzeros\nModel fingerprint: 0x71292623\nVariable types: 0 continuous, 27 integer (27 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 5e+03]\n  Objective range  [8e+03, 2e+04]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 1e+04]\nFound heuristic solution: objective 34500.000000\nPresolve removed 13 rows and 27 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: 31500 34500 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 3.150000000000e+04, best bound 3.150000000000e+04, gap 0.0000%\nOptimal value: 31500.0\nFlight 101 assigned to Aircraft 3 and Employee 10\nFlight 102 assigned to Aircraft 1 and Employee 10\nFlight 103 assigned to Aircraft 2 and Employee 10\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 31500.0,
    "error_message": null,
    "decision_variables": {}
  },
  "docplex": {
    "solver_type": "docplex",
    "execution_time": 1.1808080673217773,
    "return_code": 0,
    "stdout": "Optimal value: 31500.0\nFlight 101 assigned to Aircraft 3 and Employee 10\nFlight 102 assigned to Aircraft 1 and Employee 10\nFlight 103 assigned to Aircraft 2 and Employee 10\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 31500.0,
    "error_message": null,
    "decision_variables": {}
  },
  "pyomo": {
    "solver_type": "pyomo",
    "execution_time": 3.4664125442504883,
    "return_code": 0,
    "stdout": "Read LP format model from file /tmp/tmpqi8d_3s8.pyomo.lp\nReading time = 0.00 seconds\nx1: 7 rows, 27 columns, 81 nonzeros\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 7 rows, 27 columns and 81 nonzeros\nModel fingerprint: 0xbd3aaf04\nVariable types: 0 continuous, 27 integer (27 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 5e+03]\n  Objective range  [8e+03, 2e+04]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 1e+04]\nFound heuristic solution: objective 34500.000000\nPresolve removed 7 rows and 27 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: 31500 34500 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 3.150000000000e+04, best bound 3.150000000000e+04, gap 0.0000%\nOptimal solution found!\nOptimal value: 31500.00\n\nFlight Assignments:\nFlight 101 assigned to Aircraft 3 and Employee 10\nFlight 102 assigned to Aircraft 2 and Employee 10\nFlight 103 assigned to Aircraft 3 and Employee 10\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 31500.0,
    "error_message": null,
    "decision_variables": {}
  }
}
