
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:08:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7413.44.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/grafo7413.44.lp
Reading time = 0.48 seconds
: 256476 rows, 3662 columns, 773331 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 256476 rows, 3662 columns and 773331 nonzeros
Model fingerprint: 0xb89274f5
Variable types: 65 continuous, 3597 integer (3597 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 2.0000000
Presolve removed 79116 rows and 31 columns
Presolve time: 2.36s
Presolved: 177360 rows, 3631 columns, 536680 nonzeros
Variable types: 0 continuous, 3631 integer (3566 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3625 rows, 180985 columns, 540311 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8199    1.5181645e+02   0.000000e+00   6.267809e+05      5s
   23373    8.2998548e+01   0.000000e+00   1.001972e+06     10s
   33726    7.6948202e+01   0.000000e+00   8.147225e+05     15s
   44146    7.4924298e+01   0.000000e+00   7.306512e+04     20s
   54491    7.4909760e+01   0.000000e+00   2.743335e+05     25s
   64682    7.4900077e+01   0.000000e+00   1.554565e+05     30s
   74858    7.4892885e+01   0.000000e+00   1.405541e+04     35s
   84938    7.4887749e+01   0.000000e+00   2.321965e+04     40s
   96387    7.4883166e+01   0.000000e+00   2.741828e+04     45s

Root relaxation: time limit, 106498 iterations, 47.32 seconds (28.82 work units)

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

     0     0          -    0        12.00000  407.00000  3292%     -   50s

Explored 1 nodes (106498 simplex iterations) in 50.03 seconds (31.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 2 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.070000000000e+02, gap 3291.6667%

Wrote result file './lp_solutions/grafo7413.44.sol'

