Iteration final - SOLVER_EXECUTION
Sequence: 6
Timestamp: 2025-07-25 22:25:55

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

Response:
{
  "gurobipy": {
    "solver_type": "gurobipy",
    "execution_time": 0.20674896240234375,
    "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 4 rows, 3 columns and 6 nonzeros\nModel fingerprint: 0x064197e8\nVariable types: 0 continuous, 3 integer (0 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 2e+04]\n  Objective range  [5e+03, 2e+04]\n  Bounds range     [0e+00, 0e+00]\n  RHS range        [1e+01, 3e+05]\nFound heuristic solution: objective 290000.00000\nPresolve removed 4 rows and 3 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: 300000 290000 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 3.000000000000e+05, best bound 3.000000000000e+05, gap 0.0000%\nOptimal value: 300000.0\nRaces at track 0: 1.0\nRaces at track 1: 7.0\nRaces at track 2: 15.0\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 300000.0,
    "error_message": null,
    "decision_variables": {}
  },
  "docplex": {
    "solver_type": "docplex",
    "execution_time": 1.3303794860839844,
    "return_code": 0,
    "stdout": "Optimal value: 300000.0\nRaces at track 1: 9.0\nRaces at track 2: 12.0\nRaces at track 3: 9.0\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 300000.0,
    "error_message": null,
    "decision_variables": {}
  },
  "pyomo": {
    "solver_type": "pyomo",
    "execution_time": 1.1213278770446777,
    "return_code": 0,
    "stdout": "Read LP format model from file /tmp/tmpqu3eimmt.pyomo.lp\nReading time = 0.00 seconds\nx1: 4 rows, 3 columns, 6 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 4 rows, 3 columns and 6 nonzeros\nModel fingerprint: 0x73ca6fe0\nVariable types: 0 continuous, 3 integer (0 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 2e+04]\n  Objective range  [5e+03, 2e+04]\n  Bounds range     [0e+00, 0e+00]\n  RHS range        [1e+01, 2e+05]\nFound heuristic solution: objective 200000.00000\nPresolve removed 4 rows and 3 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: 200000 \n\nOptimal solution found (tolerance 1.00e-02)\nBest objective 2.000000000000e+05, best bound 2.000000000000e+05, gap 0.0000%\nOptimal solution found!\nOptimal value: 200000.0\n\nNumber of races at each track:\nTrack 1: 1 races\nTrack 2: 0 races\nTrack 3: 13 races\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 200000.0,
    "error_message": null,
    "decision_variables": {}
  }
}
