
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:19:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6115.40.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/grafo6115.40.lp
Reading time = 0.11 seconds
: 68882 rows, 1751 columns, 207809 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 68882 rows, 1751 columns and 207809 nonzeros
Model fingerprint: 0x2f9a8d83
Variable types: 38 continuous, 1713 integer (1713 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 18716 rows and 21 columns
Presolve time: 0.47s
Presolved: 50166 rows, 1730 columns, 151924 nonzeros
Variable types: 0 continuous, 1730 integer (1692 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1730 rows, 51896 columns, 153654 nonzeros


Root relaxation: objective 4.100000e+01, 1431 iterations, 0.26 seconds (0.26 work units)

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

     0     0   41.00000    0  336    4.00000   41.00000   925%     -    4s
H    0     0                       7.0000000   41.00000   486%     -    4s
H    0     0                       9.0000000   41.00000   356%     -    4s
H    0     0                      10.0000000   41.00000   310%     -   12s
     0     0   41.00000    0  794   10.00000   41.00000   310%     -   12s
     0     0   41.00000    0  761   10.00000   41.00000   310%     -   12s
     0     0   41.00000    0  456   10.00000   41.00000   310%     -   21s
     0     0   41.00000    0  467   10.00000   41.00000   310%     -   22s
H    0     0                      11.0000000   41.00000   273%     -   35s
     0     0   40.66667    0  461   11.00000   40.66667   270%     -   35s
     0     0   40.66667    0  429   11.00000   40.66667   270%     -   35s
H    0     0                      12.0000000   40.66667   239%     -   48s
     0     0   40.33333    0  397   12.00000   40.33333   236%     -   48s
     0     0   40.33333    0  402   12.00000   40.33333   236%     -   49s
     0     0          -    0        12.00000   40.33333   236%     -   50s

Cutting planes:
  Cover: 30
  Clique: 15
  MIR: 162
  StrongCG: 1
  GUB cover: 1
  Zero half: 51
  RLT: 67

Explored 1 nodes (52448 simplex iterations) in 50.09 seconds (45.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 12 11 10 ... 4

Time limit reached
Best objective 1.200000000000e+01, best bound 4.000000000000e+01, gap 233.3333%

Wrote result file './lp_solutions/grafo6115.40.sol'

