
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:29:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7398.44.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/grafo7398.44.lp
Reading time = 0.16 seconds
: 102843 rows, 2822 columns, 311166 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 102843 rows, 2822 columns and 311166 nonzeros
Model fingerprint: 0xe827224e
Variable types: 56 continuous, 2766 integer (2766 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, 6e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 12682 rows and 0 columns
Presolve time: 0.58s
Presolved: 90161 rows, 2822 columns, 273508 nonzeros
Variable types: 0 continuous, 2822 integer (2766 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2774 rows, 92935 columns, 276330 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18467    5.2942482e+01   0.000000e+00   5.659972e+04      5s
   36025    5.2917772e+01   0.000000e+00   1.729941e+04     10s
   53051    5.2908073e+01   0.000000e+00   9.528422e+03     15s
   70331    5.2902846e+01   0.000000e+00   3.689636e+03     20s
   87267    5.2901209e+01   0.000000e+00   1.014466e+02     25s
   91587    5.3000000e+01   0.000000e+00   0.000000e+00     26s
   91587    5.3000000e+01   0.000000e+00   0.000000e+00     26s
   91587    5.3000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 5.300000e+01, 91587 iterations, 25.54 seconds (22.28 work units)
Total elapsed time = 46.25s (DegenMoves)

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

     0     0   53.00000    0  980    7.00000   53.00000   657%     -   50s

Explored 1 nodes (110039 simplex iterations) in 50.03 seconds (48.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 -0 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.300000000000e+01, gap 657.1429%

Wrote result file './lp_solutions/grafo7398.44.sol'

