
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:17:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3560.36.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/grafo3560.36.lp
Reading time = 0.12 seconds
: 72340 rows, 1780 columns, 218507 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 72340 rows, 1780 columns and 218507 nonzeros
Model fingerprint: 0x8d2ac07d
Variable types: 42 continuous, 1738 integer (1738 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 19965 rows and 24 columns
Presolve time: 0.49s
Presolved: 52375 rows, 1756 columns, 158925 nonzeros
Variable types: 0 continuous, 1756 integer (1714 binary)
Root relaxation presolved: 1756 rows, 54131 columns, 160681 nonzeros


Root relaxation: objective 3.700000e+01, 1709 iterations, 0.33 seconds (0.31 work units)

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

     0     0   37.00000    0  272          -   37.00000      -     -    3s
H    0     0                       6.0000000   37.00000   517%     -    3s
H    0     0                      10.0000000   37.00000   270%     -    4s
     0     0   37.00000    0  659   10.00000   37.00000   270%     -   13s
     0     0   37.00000    0  613   10.00000   37.00000   270%     -   14s
H    0     0                      11.0000000   37.00000   236%     -   30s
     0     0   37.00000    0  339   11.00000   37.00000   236%     -   30s
     0     0   37.00000    0  399   11.00000   37.00000   236%     -   32s
H    0     0                      12.0000000   37.00000   208%     -   44s
     0     0   37.00000    0  363   12.00000   37.00000   208%     -   44s
     0     0   37.00000    0  346   12.00000   37.00000   208%     -   44s
     0     0   37.00000    0  627   12.00000   37.00000   208%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 26
  Clique: 17
  MIR: 141
  StrongCG: 1
  GUB cover: 1
  Inf proof: 1
  Zero half: 62
  RLT: 59

Explored 1 nodes (45892 simplex iterations) in 50.06 seconds (43.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 10 6 

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

Wrote result file './lp_solutions/grafo3560.36.sol'

