
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 18:55:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2440.16.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/grafo2440.16.lp
Reading time = 0.01 seconds
: 2861 rows, 345 columns, 8763 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 2861 rows, 345 columns and 8763 nonzeros
Model fingerprint: 0x366efcdf
Variable types: 15 continuous, 330 integer (330 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 6.0000000
Presolve removed 557 rows and 49 columns
Presolve time: 0.02s
Presolved: 2304 rows, 296 columns, 7110 nonzeros
Variable types: 0 continuous, 296 integer (281 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.200000e+01, 89 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   12.00000    0   48    7.00000   12.00000  71.4%     -    0s
H    0     0                       8.0000000   12.00000  50.0%     -    0s
     0     0   12.00000    0   91    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   54    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   51    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   50    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   45    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   53    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   50    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   50    8.00000   12.00000  50.0%     -    0s
     0     2   12.00000    0   50    8.00000   12.00000  50.0%     -    0s

Cutting planes:
  Gomory: 9
  Cover: 130
  Clique: 2
  MIR: 44
  StrongCG: 3
  GUB cover: 1
  Inf proof: 169
  Zero half: 8
  RLT: 20

Explored 4564 nodes (190254 simplex iterations) in 3.46 seconds (4.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 6 

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2440.16.sol'

