
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 00:36:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2797.15.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/grafo2797.15.lp
Reading time = 0.02 seconds
: 8621 rows, 333 columns, 26058 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 8621 rows, 333 columns and 26058 nonzeros
Model fingerprint: 0x6f6e1082
Variable types: 12 continuous, 321 integer (321 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 6507 rows and 56 columns
Presolve time: 0.03s
Presolved: 2114 rows, 277 columns, 6552 nonzeros
Variable types: 0 continuous, 277 integer (265 binary)

Root relaxation: objective 1.200000e+01, 135 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   12.00000    0   33          -   12.00000      -     -    0s
H    0     0                       6.0000000   12.00000   100%     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
     0     0   12.00000    0   95    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   91    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   78    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   73    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   77    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   77    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   71    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   66    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   73    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   73    7.00000   12.00000  71.4%     -    0s
     0     2   12.00000    0   73    7.00000   12.00000  71.4%     -    0s
H  166   135                       8.0000000   12.00000  50.0%  43.0    0s
  1775  1036   11.00000   29   67    8.00000   11.66667  45.8%  50.2    5s
  2973  1196 infeasible   36         8.00000   11.50000  43.8%  59.4   10s
 11238   674     cutoff   29         8.00000   10.00000  25.0%  52.3   15s

Cutting planes:
  Clique: 1
  Flow cover: 3
  Zero half: 1

Explored 12661 nodes (652164 simplex iterations) in 15.58 seconds (11.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 8 8 8 ... 6

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2797.15.sol'

