
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 15:59:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2814.21.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/grafo2814.21.lp
Reading time = 0.02 seconds
: 8876 rows, 574 columns, 26979 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 8876 rows, 574 columns and 26979 nonzeros
Model fingerprint: 0xdb35ade1
Variable types: 23 continuous, 551 integer (551 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 1605 rows and 21 columns
Presolve time: 0.06s
Presolved: 7271 rows, 553 columns, 22390 nonzeros
Variable types: 0 continuous, 553 integer (530 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.300000e+01, 251 iterations, 0.02 seconds (0.02 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   13.00000    0   93    4.00000   13.00000   225%     -    0s
H    0     0                       5.0000000   13.00000   160%     -    0s
     0     0   13.00000    0  148    5.00000   13.00000   160%     -    0s
H    0     0                       7.0000000   13.00000  85.7%     -    0s
     0     0   13.00000    0  144    7.00000   13.00000  85.7%     -    0s
     0     0   13.00000    0   33    7.00000   13.00000  85.7%     -    0s
H    0     0                       9.0000000   13.00000  44.4%     -    0s
     0     0   13.00000    0   40    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   41    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   41    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   62    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   74    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   37    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   44    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   39    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   45    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   77    9.00000   13.00000  44.4%     -    1s
     0     0   13.00000    0   77    9.00000   13.00000  44.4%     -    1s
H    0     0                      11.0000000   13.00000  18.2%     -    1s
     0     2   13.00000    0   31   11.00000   13.00000  18.2%     -    2s

Cutting planes:
  Cover: 20
  Clique: 1
  MIR: 43
  StrongCG: 2
  Zero half: 7
  RLT: 33

Explored 1912 nodes (38422 simplex iterations) in 4.72 seconds (4.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 9 7 ... 4

Optimal solution found (tolerance 1.00e-04)
Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0000%

Wrote result file './lp_solutions/grafo2814.21.sol'

