
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:22:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6195.40.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/grafo6195.40.lp
Reading time = 0.09 seconds
: 56898 rows, 1901 columns, 172129 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 56898 rows, 1901 columns and 172129 nonzeros
Model fingerprint: 0x698cb816
Variable types: 42 continuous, 1859 integer (1859 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 8428 rows and 32 columns
Presolve time: 0.37s
Presolved: 48470 rows, 1869 columns, 147243 nonzeros
Variable types: 0 continuous, 1869 integer (1827 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 27110 rows, 23229 columns, 104523 nonzeros


Root relaxation: objective 3.700000e+01, 3553 iterations, 1.59 seconds (1.44 work units)
Total elapsed time = 5.86s (DegenMoves)

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

     0     0   37.00000    0  443    8.00000   37.00000   362%     -    6s
H    0     0                       9.0000000   37.00000   311%     -    6s
     0     0   37.00000    0  595    9.00000   37.00000   311%     -   10s
     0     0   37.00000    0  580    9.00000   37.00000   311%     -   10s
H    0     0                      10.0000000   37.00000   270%     -   26s
H    0     0                      11.0000000   37.00000   236%     -   26s
     0     0   37.00000    0  604   11.00000   37.00000   236%     -   26s
     0     0   37.00000    0  626   11.00000   37.00000   236%     -   26s
H    0     0                      12.0000000   37.00000   208%     -   37s
     0     0   37.00000    0  447   12.00000   37.00000   208%     -   37s
     0     0   37.00000    0  407   12.00000   37.00000   208%     -   37s
     0     0   37.00000    0  385   12.00000   37.00000   208%     -   45s
     0     0   37.00000    0  430   12.00000   37.00000   208%     -   45s
     0     0   37.00000    0  589   12.00000   37.00000   208%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 32
  Clique: 1
  MIR: 152
  StrongCG: 2
  GUB cover: 6
  Zero half: 49
  RLT: 51

Explored 1 nodes (63725 simplex iterations) in 50.04 seconds (45.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 8

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo6195.40.sol'

