
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:01:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6596.38.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/grafo6596.38.lp
Reading time = 0.12 seconds
: 71944 rows, 1682 columns, 217018 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 71944 rows, 1682 columns and 217018 nonzeros
Model fingerprint: 0x7e88e62a
Variable types: 37 continuous, 1645 integer (1645 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 24483 rows and 19 columns
Presolve time: 0.45s
Presolved: 47461 rows, 1663 columns, 143943 nonzeros
Variable types: 0 continuous, 1663 integer (1626 binary)
Root relaxation presolved: 1663 rows, 49124 columns, 145606 nonzeros


Root relaxation: objective 3.800000e+01, 1672 iterations, 0.31 seconds (0.30 work units)

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

     0     0   38.00000    0  325          -   38.00000      -     -    5s
H    0     0                      10.0000000   38.00000   280%     -    5s
     0     0   38.00000    0  587   10.00000   38.00000   280%     -    8s
H    0     0                      11.0000000   38.00000   245%     -    8s
     0     0   38.00000    0  567   11.00000   38.00000   245%     -    8s
H    0     0                      12.0000000   38.00000   217%     -   26s
H    0     0                      13.0000000   38.00000   192%     -   26s
     0     0   38.00000    0  467   13.00000   38.00000   192%     -   26s
H    0     0                      14.0000000   38.00000   171%     -   26s
     0     0   38.00000    0  410   14.00000   38.00000   171%     -   27s
     0     0   38.00000    0  515   14.00000   38.00000   171%     -   33s
     0     0   38.00000    0  508   14.00000   38.00000   171%     -   34s
     0     0   38.00000    0  381   14.00000   38.00000   171%     -   40s
     0     0   38.00000    0  402   14.00000   38.00000   171%     -   40s
     0     0   38.00000    0  435   14.00000   38.00000   171%     -   47s
     0     0   38.00000    0  353   14.00000   38.00000   171%     -   48s
     0     0          -    0        14.00000   38.00000   171%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 21
  Clique: 8
  MIR: 133
  StrongCG: 2
  GUB cover: 2
  Zero half: 113
  RLT: 69
  BQP: 2

Explored 1 nodes (57172 simplex iterations) in 50.05 seconds (47.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 13 12 ... 10

Time limit reached
Best objective 1.400000000000e+01, best bound 3.800000000000e+01, gap 171.4286%

Wrote result file './lp_solutions/grafo6596.38.sol'

