
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:03:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2720.14.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/grafo2720.14.lp
Reading time = 0.01 seconds
: 3164 rows, 256 columns, 9562 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 3164 rows, 256 columns and 9562 nonzeros
Model fingerprint: 0xe5fd7a7f
Variable types: 14 continuous, 242 integer (242 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 1133 rows and 12 columns
Presolve time: 0.04s
Presolved: 2031 rows, 244 columns, 6271 nonzeros
Variable types: 0 continuous, 244 integer (230 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.200000e+01, 147 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   65    3.00000   12.00000   300%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0  103    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  102    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   98    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   98    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   68    5.00000   12.00000   140%     -    0s
H    0     0                       6.0000000   12.00000   100%     -    0s
     0     0   12.00000    0  111    6.00000   12.00000   100%     -    0s
     0     0   12.00000    0   98    6.00000   12.00000   100%     -    0s
     0     0   12.00000    0   99    6.00000   12.00000   100%     -    0s
     0     0   12.00000    0   95    6.00000   12.00000   100%     -    1s
     0     0   12.00000    0   88    6.00000   12.00000   100%     -    1s
     0     0   12.00000    0   89    6.00000   12.00000   100%     -    1s
     0     0   12.00000    0   89    6.00000   12.00000   100%     -    1s
     0     2   12.00000    0   89    6.00000   12.00000   100%     -    1s
H  243   211                       7.0000000   12.00000  71.4%  44.9    2s
  2572   877    8.00000   16   47    7.00000   10.00000  42.9%  41.0    5s
  4100  1001    8.00000   25   18    7.00000   10.00000  42.9%  42.9   10s
  6890   645    8.00000   17  132    7.00000    9.00000  28.6%  47.3   15s

Cutting planes:
  MIR: 8
  Inf proof: 8
  RLT: 5

Explored 10524 nodes (524797 simplex iterations) in 19.95 seconds (10.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 7 7 7 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2720.14.sol'

