
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:22:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2228.14.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/grafo2228.14.lp
Reading time = 0.01 seconds
: 1466 rows, 188 columns, 4432 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 1466 rows, 188 columns and 4432 nonzeros
Model fingerprint: 0x99790922
Variable types: 10 continuous, 178 integer (178 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 283 rows and 3 columns
Presolve time: 0.02s
Presolved: 1183 rows, 185 columns, 3616 nonzeros
Variable types: 0 continuous, 185 integer (175 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 69 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    9.00000    0   20    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   41    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   45    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   48    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   46    5.00000    9.00000  80.0%     -    0s
     0     0    8.00000    0   35    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   31    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   36    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   35    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   37    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   32    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   32    5.00000    8.00000  60.0%     -    0s
     0     2    8.00000    0   32    5.00000    8.00000  60.0%     -    0s

Cutting planes:
  Gomory: 5
  Cover: 18
  Clique: 1
  MIR: 27
  StrongCG: 1
  Inf proof: 86
  Zero half: 9
  RLT: 16

Explored 3229 nodes (72676 simplex iterations) in 2.20 seconds (1.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 5 4 3 

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/grafo2228.14.sol'

