
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 16:01:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1862.24.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/grafo1862.24.lp
Reading time = 0.02 seconds
: 12575 rows, 597 columns, 38017 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 12575 rows, 597 columns and 38017 nonzeros
Model fingerprint: 0xb523c68e
Variable types: 20 continuous, 577 integer (577 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 3.0000000
Presolve removed 4150 rows and 11 columns
Presolve time: 0.07s
Presolved: 8425 rows, 586 columns, 25801 nonzeros
Variable types: 0 continuous, 586 integer (566 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.200000e+01, 604 iterations, 0.06 seconds (0.06 work units)

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

     0     0   12.00000    0  132    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  206    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  204    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  108    5.00000   12.00000   140%     -    0s
H    0     0                       6.0000000   12.00000   100%     -    0s
     0     0   12.00000    0  106    6.00000   12.00000   100%     -    1s
     0     0   12.00000    0  103    6.00000   12.00000   100%     -    1s
     0     0   12.00000    0   96    6.00000   12.00000   100%     -    1s
     0     0   12.00000    0   60    6.00000   12.00000   100%     -    1s
H    0     0                       9.0000000   12.00000  33.3%     -    1s
     0     0   12.00000    0   71    9.00000   12.00000  33.3%     -    1s
     0     0   12.00000    0   80    9.00000   12.00000  33.3%     -    1s
     0     0   12.00000    0   96    9.00000   12.00000  33.3%     -    1s
     0     0   12.00000    0   96    9.00000   12.00000  33.3%     -    1s
     0     0   12.00000    0   91    9.00000   12.00000  33.3%     -    1s
H    0     0                      10.0000000   12.00000  20.0%     -    1s
     0     0   12.00000    0   99   10.00000   12.00000  20.0%     -    1s
     0     0   12.00000    0   93   10.00000   12.00000  20.0%     -    2s
     0     0   12.00000    0   93   10.00000   12.00000  20.0%     -    2s
     0     2   12.00000    0   93   10.00000   12.00000  20.0%     -    2s
   640   170   11.20000   18   62   10.00000   12.00000  20.0%  35.9    5s

Cutting planes:
  Gomory: 1
  Cover: 27
  Clique: 9
  MIR: 64
  StrongCG: 6
  Inf proof: 1
  Zero half: 6
  RLT: 50
  PSD: 1

Explored 2769 nodes (98150 simplex iterations) in 7.85 seconds (7.74 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 9 6 ... 3

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/grafo1862.24.sol'

