
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 15:07:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2491.18.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/grafo2491.18.lp
Reading time = 0.01 seconds
: 3447 rows, 289 columns, 10409 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 3447 rows, 289 columns and 10409 nonzeros
Model fingerprint: 0x75b6db58
Variable types: 12 continuous, 277 integer (277 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 970 rows and 10 columns
Presolve time: 0.02s
Presolved: 2477 rows, 279 columns, 7603 nonzeros
Variable types: 0 continuous, 279 integer (267 binary)

Root relaxation: objective 8.000000e+00, 196 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   33    3.00000    8.00000   167%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    8.00000    0   75    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   25    5.00000    8.00000  60.0%     -    0s
     0     0    7.66667    0  105    5.00000    7.66667  53.3%     -    0s
     0     0    7.00000    0   30    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   40    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   33    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   32    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   33    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   32    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   37    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   40    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   40    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   40    5.00000    7.00000  40.0%     -    0s
     0     2    7.00000    0   40    5.00000    7.00000  40.0%     -    0s
*  585   211              25       6.0000000    7.00000  16.7%  28.8    1s

Cutting planes:
  Gomory: 1
  Cover: 18
  Clique: 2
  MIR: 31
  StrongCG: 1
  GUB cover: 2
  Inf proof: 31
  Zero half: 12
  RLT: 15

Explored 1223 nodes (40262 simplex iterations) in 1.56 seconds (1.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 6 5 3 

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/grafo2491.18.sol'

