
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:16:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10005.39.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/grafo10005.39.lp
Reading time = 0.10 seconds
: 60588 rows, 2083 columns, 183571 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 60588 rows, 2083 columns and 183571 nonzeros
Model fingerprint: 0xf8166855
Variable types: 43 continuous, 2040 integer (2040 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 13435 rows and 74 columns
Presolve time: 0.37s
Presolved: 47153 rows, 2009 columns, 143584 nonzeros
Variable types: 0 continuous, 2009 integer (1966 binary)
Root relaxation presolved: 25673 rows, 23489 columns, 100624 nonzeros


Root relaxation: objective 4.400000e+01, 2863 iterations, 0.94 seconds (0.81 work units)

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

     0     0   44.00000    0  450          -   44.00000      -     -    3s
H    0     0                      14.0000000   44.00000   214%     -    4s
H    0     0                      16.0000000   44.00000   175%     -    4s
     0     0   43.00000    0  709   16.00000   43.00000   169%     -    8s
     0     0   43.00000    0  680   16.00000   43.00000   169%     -    9s
H    0     0                      17.0000000   43.00000   153%     -   26s
H    0     0                      18.0000000   43.00000   139%     -   26s
H    0     0                      20.0000000   43.00000   115%     -   26s
     0     0   43.00000    0  525   20.00000   43.00000   115%     -   26s
H    0     0                      21.0000000   43.00000   105%     -   27s
     0     0   43.00000    0  521   21.00000   43.00000   105%     -   27s
     0     0   43.00000    0  449   21.00000   43.00000   105%     -   41s
     0     0   43.00000    0  491   21.00000   43.00000   105%     -   42s
     0     0   43.00000    0  649   21.00000   43.00000   105%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 23
  Clique: 16
  MIR: 150
  StrongCG: 3
  GUB cover: 2
  Zero half: 84
  RLT: 61
  BQP: 7

Explored 1 nodes (63114 simplex iterations) in 50.06 seconds (44.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 21 20 18 ... 14

Time limit reached
Best objective 2.100000000000e+01, best bound 4.300000000000e+01, gap 104.7619%

Wrote result file './lp_solutions/grafo10005.39.sol'

