
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:28:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1671.17.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/grafo1671.17.lp
Reading time = 0.01 seconds
: 2565 rows, 244 columns, 7711 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 2565 rows, 244 columns and 7711 nonzeros
Model fingerprint: 0x8cd0b6b1
Variable types: 11 continuous, 233 integer (233 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 598 rows and 12 columns
Presolve time: 0.02s
Presolved: 1967 rows, 232 columns, 6013 nonzeros
Variable types: 0 continuous, 232 integer (221 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 8.000000e+00, 134 iterations, 0.01 seconds (0.01 work units)

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

     0     0    8.00000    0   62    1.00000    8.00000   700%     -    0s
H    0     0                       3.0000000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   75    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   75    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    8.00000    0   50    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   50    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   33    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   33    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   48    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   56    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   68    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   63    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   32    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   37    5.00000    8.00000  60.0%     -    0s
     0     0    7.66667    0   60    5.00000    7.66667  53.3%     -    0s
     0     0    7.66667    0   52    5.00000    7.66667  53.3%     -    0s
     0     0    7.66667    0   51    5.00000    7.66667  53.3%     -    0s
     0     0    7.66667    0   42    5.00000    7.66667  53.3%     -    0s
     0     2    7.66667    0   38    5.00000    7.66667  53.3%     -    1s

Cutting planes:
  Cover: 13
  MIR: 61
  StrongCG: 1
  GUB cover: 3
  Inf proof: 20
  Zero half: 8
  RLT: 24

Explored 893 nodes (55787 simplex iterations) in 2.72 seconds (1.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 5 4 3 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1671.17.sol'

