
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:45:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1872.23.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/grafo1872.23.lp
Reading time = 0.02 seconds
: 8599 rows, 529 columns, 26037 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 8599 rows, 529 columns and 26037 nonzeros
Model fingerprint: 0xed7cd297
Variable types: 18 continuous, 511 integer (511 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 2950 rows and 35 columns
Presolve time: 0.05s
Presolved: 5649 rows, 494 columns, 17334 nonzeros
Variable types: 0 continuous, 494 integer (476 binary)

Root relaxation: objective 1.100000e+01, 299 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   11.00000    0   84          -   11.00000      -     -    0s
H    0     0                       7.0000000   11.00000  57.1%     -    0s
     0     0   11.00000    0   74    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   79    7.00000   11.00000  57.1%     -    0s
     0     0   10.50000    0   42    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   61    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   42    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   47    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   62    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   59    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   54    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   54    7.00000   10.50000  50.0%     -    0s
     0     0   10.00000    0   38    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   40    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   53    7.00000   10.00000  42.9%     -    1s
     0     0   10.00000    0   53    7.00000   10.00000  42.9%     -    1s
     0     2   10.00000    0   53    7.00000   10.00000  42.9%     -    1s
H  166   123                       9.0000000   10.00000  11.1%  51.3    1s
  1596   188 infeasible   17         9.00000   10.00000  11.1%  55.4    5s

Cutting planes:
  Gomory: 2
  Cover: 96
  Clique: 3
  MIR: 58
  StrongCG: 1
  GUB cover: 1
  Inf proof: 114
  Zero half: 5
  RLT: 20
  PSD: 1

Explored 2750 nodes (174425 simplex iterations) in 6.78 seconds (6.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 7 

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1872.23.sol'

