Iteration final - SOLVER_EXECUTION
Sequence: 10
Timestamp: 2025-07-25 22:35:24

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

Response:
{
  "gurobipy": {
    "solver_type": "gurobipy",
    "execution_time": 0.17362380027770996,
    "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 24 rows, 24 columns and 72 nonzeros\nModel fingerprint: 0xa21190ee\nVariable types: 0 continuous, 24 integer (24 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [1e+02, 6e+02]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 3e+00]\nFound heuristic solution: objective 950.0000000\nPresolve removed 24 rows and 24 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: 120 950 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 1.200000000000e+02, best bound 1.200000000000e+02, gap 0.0000%\nOptimal value: 120.0\nBridge 1 is built.\nArchitect 1 is assigned to bridge 1.\nArchitect 2 is assigned to bridge 1.\nArchitect 3 is assigned to bridge 1.\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 120.0,
    "error_message": null,
    "decision_variables": {}
  },
  "docplex": {
    "solver_type": "docplex",
    "execution_time": 1.1271653175354004,
    "return_code": 0,
    "stdout": "Optimal value: 120.0\nBridge 1 is built.\nArchitect 1 is assigned to bridge 1.\nArchitect 2 is assigned to bridge 1.\nArchitect 3 is assigned to bridge 1.\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 120.0,
    "error_message": null,
    "decision_variables": {}
  },
  "pyomo": {
    "solver_type": "pyomo",
    "execution_time": 0.8526043891906738,
    "return_code": 0,
    "stdout": "Read LP format model from file /tmp/tmppm_fv9o8.pyomo.lp\nReading time = 0.00 seconds\nx1: 24 rows, 24 columns, 72 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 24 rows, 24 columns and 72 nonzeros\nModel fingerprint: 0x0933c9fd\nVariable types: 0 continuous, 24 integer (24 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [1e+02, 6e+02]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 3e+00]\nFound heuristic solution: objective 950.0000000\nPresolve removed 24 rows and 24 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: 120 950 \n\nOptimal solution found (tolerance 1.00e-02)\nBest objective 1.200000000000e+02, best bound 1.200000000000e+02, gap 0.0000%\nOptimal value: 120.0\n\nVariable values:\nBridge 1 is built.\nArchitect 1 is assigned to bridge 1.\nArchitect 2 is assigned to bridge 1.\nArchitect 3 is assigned to bridge 1.\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 120.0,
    "error_message": null,
    "decision_variables": {}
  }
}
