
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 08:03:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo931.13.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/grafo931.13.lp
Reading time = 0.01 seconds
: 1777 rows, 186 columns, 5347 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 1777 rows, 186 columns and 5347 nonzeros
Model fingerprint: 0xa9a677ea
Variable types: 11 continuous, 175 integer (175 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]
Found heuristic solution: objective -0.0000000
Presolve removed 598 rows and 12 columns
Presolve time: 0.02s
Presolved: 1179 rows, 174 columns, 3649 nonzeros
Variable types: 0 continuous, 174 integer (163 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 8.000000e+00, 130 iterations, 0.01 seconds (0.00 work units)

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

     0     0    8.00000    0   65    2.00000    8.00000   300%     -    0s
H    0     0                       3.0000000    8.00000   167%     -    0s
     0     0    8.00000    0   81    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   77    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   43    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   73    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   71    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   42    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   43    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   33    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   39    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   66    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   72    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   40    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   56    3.00000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   29    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   85    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   58    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   58    4.00000    8.00000   100%     -    0s
     0     2    8.00000    0   58    4.00000    8.00000   100%     -    1s
H  551   215                       5.0000000    8.00000  60.0%  43.5    1s

Cutting planes:
  Gomory: 2
  Cover: 31
  MIR: 83
  GUB cover: 2
  Inf proof: 52
  Zero half: 13
  RLT: 31
  BQP: 1

Explored 2151 nodes (121840 simplex iterations) in 3.80 seconds (2.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 5 4 3 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo931.13.sol'

