
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:46:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3082.33.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/grafo3082.33.lp
Reading time = 0.09 seconds
: 53194 rows, 1711 columns, 161073 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 53194 rows, 1711 columns and 161073 nonzeros
Model fingerprint: 0xe98f17e8
Variable types: 41 continuous, 1670 integer (1670 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]
Presolve removed 12284 rows and 46 columns
Presolve time: 0.45s
Presolved: 40910 rows, 1665 columns, 124547 nonzeros
Variable types: 0 continuous, 1665 integer (1624 binary)
Root relaxation presolved: 24794 rows, 17781 columns, 92315 nonzeros


Root relaxation: objective 4.400000e+01, 2196 iterations, 0.80 seconds (0.74 work units)

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

     0     0   44.00000    0  389          -   44.00000      -     -    3s
H    0     0                       7.0000000   44.00000   529%     -    3s
     0     0   44.00000    0  647    7.00000   44.00000   529%     -    6s
H    0     0                       8.0000000   44.00000   450%     -    6s
H    0     0                       9.0000000   44.00000   389%     -    6s
H    0     0                      10.0000000   44.00000   340%     -    6s
     0     0   44.00000    0  638   10.00000   44.00000   340%     -    6s
     0     0   44.00000    0  369   10.00000   44.00000   340%     -   29s
H    0     0                      14.0000000   44.00000   214%     -   29s
     0     0   44.00000    0  373   14.00000   44.00000   214%     -   29s
H    0     0                      15.0000000   44.00000   193%     -   37s
H    0     0                      17.0000000   44.00000   159%     -   37s
     0     0   44.00000    0  401   17.00000   44.00000   159%     -   37s
     0     0   44.00000    0  382   17.00000   44.00000   159%     -   38s
H    0     0                      18.0000000   44.00000   144%     -   47s
     0     0   44.00000    0  385   18.00000   44.00000   144%     -   47s
     0     0   44.00000    0  396   18.00000   44.00000   144%     -   48s
     0     0          -    0        18.00000   44.00000   144%     -   50s

Cutting planes:
  Cover: 39
  Clique: 13
  MIR: 145
  StrongCG: 2
  GUB cover: 1
  Zero half: 59
  RLT: 69
  BQP: 1

Explored 1 nodes (61985 simplex iterations) in 50.06 seconds (45.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 18 17 15 ... 7

Time limit reached
Best objective 1.800000000000e+01, best bound 4.400000000000e+01, gap 144.4444%

Wrote result file './lp_solutions/grafo3082.33.sol'

