
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:04:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7004.43.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/grafo7004.43.lp
Reading time = 0.09 seconds
: 53727 rows, 1879 columns, 162398 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 53727 rows, 1879 columns and 162398 nonzeros
Model fingerprint: 0x41f4c8cc
Variable types: 39 continuous, 1840 integer (1840 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 6621 rows and 25 columns
Presolve time: 0.35s
Presolved: 47106 rows, 1854 columns, 142824 nonzeros
Variable types: 0 continuous, 1854 integer (1815 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 25626 rows, 23334 columns, 99864 nonzeros


Root relaxation: objective 3.700000e+01, 5171 iterations, 2.98 seconds (2.70 work units)
Total elapsed time = 7.31s (DegenMoves)

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

     0     0   37.00000    0  585    5.00000   37.00000   640%     -   10s
H    0     0                       8.0000000   37.00000   362%     -   11s
     0     0   37.00000    0  716    8.00000   37.00000   362%     -   17s
     0     0   37.00000    0  699    8.00000   37.00000   362%     -   18s
     0     0   37.00000    0  320    8.00000   37.00000   362%     -   27s
     0     0   37.00000    0  288    8.00000   37.00000   362%     -   28s
     0     0   37.00000    0  243    8.00000   37.00000   362%     -   33s
     0     0   37.00000    0  227    8.00000   37.00000   362%     -   33s
     0     0   37.00000    0  381    8.00000   37.00000   362%     -   38s
     0     0   37.00000    0  323    8.00000   37.00000   362%     -   38s
     0     0   37.00000    0  307    8.00000   37.00000   362%     -   43s
     0     0   37.00000    0  383    8.00000   37.00000   362%     -   44s
     0     0   37.00000    0  425    8.00000   37.00000   362%     -   50s

Cutting planes:
  Cover: 24
  Clique: 2
  MIR: 182
  StrongCG: 1
  GUB cover: 1
  Zero half: 41
  RLT: 49

Explored 1 nodes (69886 simplex iterations) in 50.05 seconds (47.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 5 3 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.700000000000e+01, gap 362.5000%

Wrote result file './lp_solutions/grafo7004.43.sol'

