
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:01:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2839.37.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/grafo2839.37.lp
Reading time = 0.12 seconds
: 74558 rows, 1889 columns, 225234 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 74558 rows, 1889 columns and 225234 nonzeros
Model fingerprint: 0x7e032664
Variable types: 43 continuous, 1846 integer (1846 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 3.0000000
Presolve removed 19674 rows and 19 columns
Presolve time: 0.49s
Presolved: 54884 rows, 1870 columns, 166537 nonzeros
Variable types: 0 continuous, 1870 integer (1827 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1870 rows, 56754 columns, 168407 nonzeros


Root relaxation: objective 4.400000e+01, 1534 iterations, 0.29 seconds (0.28 work units)

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

     0     0   44.00000    0  327    9.00000   44.00000   389%     -    2s
H    0     0                      11.0000000   44.00000   300%     -    3s
     0     0   44.00000    0  598   11.00000   44.00000   300%     -   10s
     0     0   44.00000    0  600   11.00000   44.00000   300%     -   11s
H    0     0                      12.0000000   44.00000   267%     -   29s
H    0     0                      14.0000000   44.00000   214%     -   29s
     0     0   44.00000    0  572   14.00000   44.00000   214%     -   29s
     0     0   44.00000    0  552   14.00000   44.00000   214%     -   29s
     0     0   44.00000    0  684   14.00000   44.00000   214%     -   50s

Cutting planes:
  Cover: 40
  Clique: 19
  MIR: 192
  GUB cover: 2
  Zero half: 44
  RLT: 94
  BQP: 1

Explored 1 nodes (45843 simplex iterations) in 50.06 seconds (44.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 12 11 ... 3

Time limit reached
Best objective 1.400000000000e+01, best bound 4.400000000000e+01, gap 214.2857%

Wrote result file './lp_solutions/grafo2839.37.sol'

