
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:05:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5141.42.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/grafo5141.42.lp
Reading time = 0.09 seconds
: 57091 rows, 1985 columns, 172718 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 57091 rows, 1985 columns and 172718 nonzeros
Model fingerprint: 0xbe2c9c55
Variable types: 41 continuous, 1944 integer (1944 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 7995 rows and 25 columns
Presolve time: 0.38s
Presolved: 49096 rows, 1960 columns, 149177 nonzeros
Variable types: 0 continuous, 1960 integer (1919 binary)
Root relaxation presolved: 26956 rows, 24100 columns, 104897 nonzeros


Root relaxation: objective 3.700000e+01, 2934 iterations, 1.10 seconds (1.05 work units)

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

     0     0   37.00000    0  343          -   37.00000      -     -    4s
H    0     0                      14.0000000   37.00000   164%     -    4s
     0     0   37.00000    0  572   14.00000   37.00000   164%     -    8s
     0     0   37.00000    0  529   14.00000   37.00000   164%     -    9s
H    0     0                      15.0000000   37.00000   147%     -   19s
     0     0   37.00000    0  472   15.00000   37.00000   147%     -   19s
     0     0   37.00000    0  413   15.00000   37.00000   147%     -   19s
     0     0   37.00000    0  550   15.00000   37.00000   147%     -   31s
     0     0   37.00000    0  508   15.00000   37.00000   147%     -   32s
     0     0   37.00000    0  494   15.00000   37.00000   147%     -   43s
     0     0   37.00000    0  433   15.00000   37.00000   147%     -   43s
     0     0   37.00000    0  558   15.00000   37.00000   147%     -   50s

Cutting planes:
  Cover: 22
  Clique: 6
  MIR: 93
  StrongCG: 1
  GUB cover: 2
  Zero half: 62
  RLT: 46
  BQP: 1
  PSD: 1

Explored 1 nodes (62727 simplex iterations) in 50.07 seconds (45.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 14 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.700000000000e+01, gap 146.6667%

Wrote result file './lp_solutions/grafo5141.42.sol'

