
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:19:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6285.44.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo6285.44.lp
Reading time = 0.13 seconds
: 80524 rows, 2504 columns, 243743 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 80524 rows, 2504 columns and 243743 nonzeros
Model fingerprint: 0x670434b6
Variable types: 51 continuous, 2453 integer (2453 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective 2.0000000
Presolve removed 7537 rows and 0 columns
Presolve time: 0.44s
Presolved: 72987 rows, 2504 columns, 221463 nonzeros
Variable types: 0 continuous, 2504 integer (2453 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2462 rows, 75449 columns, 223967 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22944    4.2950943e+01   0.000000e+00   1.079799e+04      5s
   44372    4.2944411e+01   0.000000e+00   4.718681e+02     10s
   59417    4.3000000e+01   0.000000e+00   0.000000e+00     14s
   59417    4.3000000e+01   0.000000e+00   0.000000e+00     14s
   59417    4.3000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.300000e+01, 59417 iterations, 13.11 seconds (11.36 work units)
Total elapsed time = 29.60s (DegenMoves)
Total elapsed time = 43.84s (DegenMoves)
Total elapsed time = 47.72s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   43.00000    0  767    7.00000   43.00000   514%     -   50s

Explored 1 nodes (96406 simplex iterations) in 50.04 seconds (56.64 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 2 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.300000000000e+01, gap 514.2857%

Wrote result file './lp_solutions/grafo6285.44.sol'

