
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 06:29:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo555.12.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/grafo555.12.lp
Reading time = 0.01 seconds
: 2399 rows, 153 columns, 7212 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 2399 rows, 153 columns and 7212 nonzeros
Model fingerprint: 0xfaea65bc
Variable types: 9 continuous, 144 integer (144 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 1089 rows and 3 columns
Presolve time: 0.02s
Presolved: 1310 rows, 150 columns, 3972 nonzeros
Variable types: 0 continuous, 150 integer (141 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 9.000000e+00, 130 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    9.00000    0   44    2.00000    9.00000   350%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   68    4.00000    9.00000   125%     -    0s
     0     0    8.00000    0   54    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   53    4.00000    8.00000   100%     -    0s
     0     0    7.66667    0   36    4.00000    7.66667  91.7%     -    0s
H    0     0                       5.0000000    7.33333  46.7%     -    0s
     0     0    7.33333    0   54    5.00000    7.33333  46.7%     -    0s
     0     0    7.00000    0   48    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   55    5.00000    7.00000  40.0%     -    0s
     0     0    6.33333    0   60    5.00000    6.33333  26.7%     -    0s
     0     0    6.00000    0   53    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   46    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   58    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   69    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   42    5.00000    6.00000  20.0%     -    0s
     0     2    6.00000    0   42    5.00000    6.00000  20.0%     -    0s

Cutting planes:
  Cover: 15
  Clique: 3
  MIR: 33
  Inf proof: 9
  Zero half: 2
  RLT: 21

Explored 546 nodes (12319 simplex iterations) in 1.19 seconds (0.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 5 4 2 

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/grafo555.12.sol'

