Iteration final - SOLVER_EXECUTION
Sequence: 6
Timestamp: 2025-07-27 22:48:45

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

Response:
{
  "gurobipy": {
    "solver_type": "gurobipy",
    "execution_time": 0.2444460391998291,
    "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 6 rows, 5 columns and 10 nonzeros\nModel fingerprint: 0xd3cfd969\nVariable types: 0 continuous, 5 integer (5 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [7e-01, 9e-01]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 3e+00]\nFound heuristic solution: objective 2.5000000\nPresolve removed 6 rows and 5 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: 2.55 2.5 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 2.550000000000e+00, best bound 2.550000000000e+00, gap 0.0000%\nOptimal value: 2.55\nx[1] = 1.000\nx[3] = 1.000\nx[5] = 1.000\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 2.55,
    "error_message": null,
    "decision_variables": {},
    "retry_attempt": 1
  },
  "docplex": {
    "solver_type": "docplex",
    "execution_time": 4.792110204696655,
    "return_code": 0,
    "stdout": "Optimal value: 2.55\nPhoto 1 selected with diversity score 0.85\nPhoto 3 selected with diversity score 0.9\nPhoto 5 selected with diversity score 0.8\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 2.55,
    "error_message": null,
    "decision_variables": {},
    "retry_attempt": 1
  },
  "pyomo": {
    "solver_type": "pyomo",
    "execution_time": 5.076756238937378,
    "return_code": 0,
    "stdout": "Read LP format model from file /tmp/tmpynkgj5i4.pyomo.lp\nReading time = 0.00 seconds\nx1: 6 rows, 5 columns, 10 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 6 rows, 5 columns and 10 nonzeros\nModel fingerprint: 0x3a57b14d\nVariable types: 0 continuous, 5 integer (5 binary)\nCoefficient statistics:\n  Matrix range     [1e+00, 1e+00]\n  Objective range  [7e-01, 9e-01]\n  Bounds range     [1e+00, 1e+00]\n  RHS range        [1e+00, 3e+00]\nFound heuristic solution: objective 2.5000000\nPresolve removed 6 rows and 5 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: 2.55 2.5 \n\nOptimal solution found (tolerance 1.00e-04)\nBest objective 2.550000000000e+00, best bound 2.550000000000e+00, gap 0.0000%\nOptimal solution found!\nOptimal value: 2.55\n\nSelected photos:\nPhoto ID 1 selected with diversity score 0.85\nPhoto ID 3 selected with diversity score 0.90\nPhoto ID 5 selected with diversity score 0.80\n",
    "stderr": "",
    "status": "optimal",
    "optimal_value": 2.55,
    "error_message": null,
    "decision_variables": {},
    "retry_attempt": 1
  }
}
