
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:42:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo131.23.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/grafo131.23.lp
Reading time = 0.02 seconds
: 8929 rows, 566 columns, 27079 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 8929 rows, 566 columns and 27079 nonzeros
Model fingerprint: 0x971b36b8
Variable types: 19 continuous, 547 integer (547 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 2905 rows and 27 columns
Presolve time: 0.05s
Presolved: 6024 rows, 539 columns, 18441 nonzeros
Variable types: 0 continuous, 539 integer (520 binary)

Root relaxation: objective 1.600000e+01, 337 iterations, 0.02 seconds (0.02 work units)

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

     0     0   16.00000    0  124          -   16.00000      -     -    0s
     0     0   16.00000    0  168          -   16.00000      -     -    0s
     0     0   16.00000    0  154          -   16.00000      -     -    0s
     0     0   16.00000    0   50          -   16.00000      -     -    0s
     0     0   16.00000    0   50          -   16.00000      -     -    0s
H    0     0                       8.0000000   16.00000   100%     -    0s
     0     0   16.00000    0   95    8.00000   16.00000   100%     -    0s
H    0     0                       9.0000000   16.00000  77.8%     -    0s
     0     0   16.00000    0  104    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   60    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   62    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   74    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   74    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   67    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   72    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   48    9.00000   16.00000  77.8%     -    0s
     0     0   16.00000    0   43    9.00000   16.00000  77.8%     -    1s
     0     2   16.00000    0   41    9.00000   16.00000  77.8%     -    1s
H  241   139                      10.0000000   16.00000  60.0%  62.5    2s
   911   383 infeasible   17        10.00000   16.00000  60.0%  73.1    5s
  3283   489 infeasible   39        10.00000   14.00000  40.0%  77.6   10s

Cutting planes:
  Gomory: 2
  Lift-and-project: 1
  Cover: 63
  Clique: 9
  MIR: 87
  StrongCG: 2
  Inf proof: 158
  Zero half: 8
  RLT: 57
  BQP: 4

Explored 4753 nodes (325243 simplex iterations) in 11.67 seconds (13.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 8 

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0000%

Wrote result file './lp_solutions/grafo131.23.sol'

