
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:48:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11577.39.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/grafo11577.39.lp
Reading time = 0.10 seconds
: 59137 rows, 2051 columns, 179153 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 59137 rows, 2051 columns and 179153 nonzeros
Model fingerprint: 0xfd8c8d49
Variable types: 44 continuous, 2007 integer (2007 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 9467 rows and 58 columns
Presolve time: 0.41s
Presolved: 49670 rows, 1993 columns, 151169 nonzeros
Variable types: 0 continuous, 1993 integer (1949 binary)
Root relaxation presolved: 27287 rows, 24376 columns, 106403 nonzeros


Root relaxation: objective 3.900000e+01, 1943 iterations, 0.63 seconds (0.53 work units)

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

     0     0   39.00000    0  423          -   39.00000      -     -    3s
H    0     0                      10.0000000   39.00000   290%     -    4s
     0     0   39.00000    0  679   10.00000   39.00000   290%     -    8s
H    0     0                      11.0000000   39.00000   255%     -    8s
     0     0   39.00000    0  627   11.00000   39.00000   255%     -    8s
H    0     0                      15.0000000   39.00000   160%     -   20s
H    0     0                      17.0000000   39.00000   129%     -   20s
     0     0   39.00000    0  386   17.00000   39.00000   129%     -   20s
     0     0   39.00000    0  461   17.00000   39.00000   129%     -   21s
     0     0   39.00000    0  345   17.00000   39.00000   129%     -   30s
     0     0   39.00000    0  288   17.00000   39.00000   129%     -   30s
     0     0   39.00000    0  421   17.00000   39.00000   129%     -   37s
     0     0   39.00000    0  415   17.00000   39.00000   129%     -   38s
     0     0   39.00000    0  497   17.00000   39.00000   129%     -   48s
     0     0   39.00000    0  491   17.00000   39.00000   129%     -   48s
     0     0          -    0        17.00000   39.00000   129%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 34
  Clique: 11
  MIR: 116
  StrongCG: 2
  GUB cover: 1
  Zero half: 55
  RLT: 56
  BQP: 3
  PSD: 1

Explored 1 nodes (64274 simplex iterations) in 50.09 seconds (44.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 17 15 11 10 

Time limit reached
Best objective 1.700000000000e+01, best bound 3.900000000000e+01, gap 129.4118%

Wrote result file './lp_solutions/grafo11577.39.sol'

