
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:59:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo890.13.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/grafo890.13.lp
Reading time = 0.01 seconds
: 1991 rows, 204 columns, 5994 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 1991 rows, 204 columns and 5994 nonzeros
Model fingerprint: 0x47e8f46a
Variable types: 12 continuous, 192 integer (192 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: 1303 rows, 189 columns, 4047 nonzeros
Variable types: 0 continuous, 189 integer (177 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 9.000000e+00, 145 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   56    3.00000    9.00000   200%     -    0s
     0     0    9.00000    0   85    3.00000    9.00000   200%     -    0s
     0     0    9.00000    0   81    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   49    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   48    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   62    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   61    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   70    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   70    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   62    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   73    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   71    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   49    4.00000    9.00000   125%     -    0s
     0     2    9.00000    0   47    4.00000    9.00000   125%     -    0s
H  198   149                       5.0000000    9.00000  80.0%  48.5    1s
H 1222   252                       6.0000000    8.00000  33.3%  51.9    2s
  2544   100    7.00000   17   85    6.00000    7.00000  16.7%  67.3    5s

Cutting planes:
  Gomory: 1
  Cover: 70
  MIR: 60
  GUB cover: 5
  Inf proof: 27
  Zero half: 3
  RLT: 26
  Relax-and-lift: 1

Explored 3218 nodes (235312 simplex iterations) in 6.22 seconds (4.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 4 ... -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/grafo890.13.sol'

