
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:00:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2651.12.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/grafo2651.12.lp
Reading time = 0.01 seconds
: 1859 rows, 192 columns, 5598 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 1859 rows, 192 columns and 5598 nonzeros
Model fingerprint: 0x3d93a23b
Variable types: 12 continuous, 180 integer (180 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 688 rows and 15 columns
Presolve time: 0.02s
Presolved: 1171 rows, 177 columns, 3651 nonzeros
Variable types: 0 continuous, 177 integer (165 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 9.000000e+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    9.00000    0   64    2.00000    9.00000   350%     -    0s
H    0     0                       3.0000000    9.00000   200%     -    0s
     0     0    9.00000    0   71    3.00000    9.00000   200%     -    0s
     0     0    9.00000    0   70    3.00000    9.00000   200%     -    0s
     0     0    9.00000    0   53    3.00000    9.00000   200%     -    0s
     0     0    9.00000    0   56    3.00000    9.00000   200%     -    0s
     0     0    8.66667    0   76    3.00000    8.66667   189%     -    0s
     0     0    8.66667    0   75    3.00000    8.66667   189%     -    0s
     0     0    8.66667    0   56    3.00000    8.66667   189%     -    0s
     0     0    8.66667    0   53    3.00000    8.66667   189%     -    0s
     0     0    8.66667    0   57    3.00000    8.66667   189%     -    0s
H    0     0                       5.0000000    8.66667  73.3%     -    0s
H    0     0                       6.0000000    8.66667  44.4%     -    0s
     0     0    8.66667    0   57    6.00000    8.66667  44.4%     -    0s
     0     0    8.66667    0   63    6.00000    8.66667  44.4%     -    0s
     0     0    8.66667    0   63    6.00000    8.66667  44.4%     -    0s
     0     2    8.66667    0   63    6.00000    8.66667  44.4%     -    0s
  3106   136 infeasible   18         6.00000    7.00000  16.7%  69.3    5s

Cutting planes:
  Gomory: 1
  Cover: 143
  MIR: 52
  StrongCG: 3
  GUB cover: 4
  Inf proof: 44
  Zero half: 4
  RLT: 30

Explored 4143 nodes (320249 simplex iterations) in 7.28 seconds (5.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 3 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2651.12.sol'

