
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:53:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo791.13.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/grafo791.13.lp
Reading time = 0.00 seconds
: 1853 rows, 198 columns, 5595 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 1853 rows, 198 columns and 5595 nonzeros
Model fingerprint: 0xccd17f06
Variable types: 12 continuous, 186 integer (186 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 1.0000000
Presolve removed 563 rows and 12 columns
Presolve time: 0.02s
Presolved: 1290 rows, 186 columns, 3996 nonzeros
Variable types: 0 continuous, 186 integer (174 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 8.000000e+00, 95 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    8.00000    0   61    3.00000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   72    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   51    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   33    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   35    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    8.00000    0   44    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   46    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   54    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   39    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   36    5.00000    8.00000  60.0%     -    0s
     0     0    7.66667    0   41    5.00000    7.66667  53.3%     -    0s
     0     0    7.66667    0   27    5.00000    7.66667  53.3%     -    0s
     0     2    7.66667    0   27    5.00000    7.66667  53.3%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 17
  MIR: 45
  GUB cover: 2
  Inf proof: 21
  Zero half: 2
  RLT: 20

Explored 868 nodes (37919 simplex iterations) in 1.60 seconds (0.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 5 4 3 1 

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/grafo791.13.sol'

