
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:49:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo401.11.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/grafo401.11.lp
Reading time = 0.01 seconds
: 2175 rows, 187 columns, 6564 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 2175 rows, 187 columns and 6564 nonzeros
Model fingerprint: 0xa6c9e2c9
Variable types: 12 continuous, 175 integer (175 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 -0.0000000
Presolve removed 926 rows and 9 columns
Presolve time: 0.03s
Presolved: 1249 rows, 178 columns, 3873 nonzeros
Variable types: 0 continuous, 178 integer (166 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.100000e+01, 147 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   11.00000    0   62    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   89    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   86    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   99    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   98    4.00000   11.00000   175%     -    0s
     0     0   10.66667    0   95    4.00000   10.66667   167%     -    0s
     0     0   10.50000    0   93    4.00000   10.50000   163%     -    0s
     0     0   10.00000    0   77    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   69    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   69    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   64    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0  102    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   73    4.00000   10.00000   150%     -    0s
     0     2   10.00000    0   52    4.00000   10.00000   150%     -    0s
H  369   258                       5.0000000   10.00000   100%  32.8    1s
H  864   421                       6.0000000   10.00000  66.7%  26.0    1s

Cutting planes:
  Gomory: 2
  Cover: 19
  MIR: 59
  GUB cover: 2
  Inf proof: 84
  Zero half: 5
  RLT: 35

Explored 5166 nodes (177102 simplex iterations) in 4.77 seconds (2.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 6 5 4 -0 

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/grafo401.11.sol'

