
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:49:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2537.16.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/grafo2537.16.lp
Reading time = 0.01 seconds
: 3428 rows, 345 columns, 10455 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 3428 rows, 345 columns and 10455 nonzeros
Model fingerprint: 0xcaa04254
Variable types: 18 continuous, 327 integer (327 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 440 rows and 15 columns
Presolve time: 0.03s
Presolved: 2988 rows, 330 columns, 9261 nonzeros
Variable types: 0 continuous, 330 integer (312 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.000000e+01, 156 iterations, 0.02 seconds (0.01 work units)

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

     0     0   10.00000    0   56    3.00000   10.00000   233%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
     0     0   10.00000    0   82    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   81    4.00000   10.00000   150%     -    0s
H    0     0                       7.0000000   10.00000  42.9%     -    0s
     0     0   10.00000    0   25    7.00000   10.00000  42.9%     -    0s
     0     0    9.50000    0   28    7.00000    9.50000  35.7%     -    0s
H    0     0                       8.0000000    9.50000  18.8%     -    0s
     0     0    9.50000    0   26    8.00000    9.50000  18.8%     -    0s
     0     0    9.50000    0   39    8.00000    9.50000  18.8%     -    0s
     0     0    9.00000    0   26    8.00000    9.00000  12.5%     -    0s
     0     0    9.00000    0   47    8.00000    9.00000  12.5%     -    0s
     0     0    9.00000    0   46    8.00000    9.00000  12.5%     -    0s
     0     0    9.00000    0   20    8.00000    9.00000  12.5%     -    0s
     0     0    9.00000    0   34    8.00000    9.00000  12.5%     -    0s
     0     0    9.00000    0   44    8.00000    9.00000  12.5%     -    0s
     0     0    9.00000    0   44    8.00000    9.00000  12.5%     -    0s
     0     2    9.00000    0   44    8.00000    9.00000  12.5%     -    0s

Cutting planes:
  Cover: 7
  Clique: 1
  MIR: 18
  StrongCG: 1
  Inf proof: 8
  Zero half: 3
  RLT: 16

Explored 224 nodes (7911 simplex iterations) in 1.21 seconds (0.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 7 4 3 

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/grafo2537.16.sol'

