
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:06:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1170.27.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/grafo1170.27.lp
Reading time = 0.02 seconds
: 8487 rows, 613 columns, 25684 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 8487 rows, 613 columns and 25684 nonzeros
Model fingerprint: 0x670b6e28
Variable types: 19 continuous, 594 integer (594 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 405 rows and 13 columns
Presolve time: 0.08s
Presolved: 8082 rows, 600 columns, 24562 nonzeros
Variable types: 0 continuous, 600 integer (581 binary)

Root relaxation: objective 1.500000e+01, 344 iterations, 0.04 seconds (0.02 work units)

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

     0     0   15.00000    0   40          -   15.00000      -     -    0s
H    0     0                       8.0000000   15.00000  87.5%     -    0s
     0     0   15.00000    0   93    8.00000   15.00000  87.5%     -    0s
H    0     0                       9.0000000   14.50000  61.1%     -    0s
     0     0   14.50000    0   66    9.00000   14.50000  61.1%     -    0s
     0     0   14.50000    0   65    9.00000   14.50000  61.1%     -    0s
     0     0   14.00000    0   53    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   53    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   58    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   49    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   29    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   24    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   41    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   44    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   65    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   46    9.00000   14.00000  55.6%     -    1s
     0     2   14.00000    0   44    9.00000   14.00000  55.6%     -    2s
   487   236 infeasible   15         9.00000   14.00000  55.6%  55.4    5s
  2229   223   10.83333   18   97    9.00000   13.00000  44.4%  57.1   10s

Cutting planes:
  Gomory: 8
  Cover: 34
  MIR: 61
  StrongCG: 3
  GUB cover: 1
  Inf proof: 130
  Zero half: 13
  RLT: 33

Explored 2963 nodes (152501 simplex iterations) in 11.57 seconds (7.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 8 

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1170.27.sol'

