
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:39:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10660.37.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/grafo10660.37.lp
Reading time = 0.12 seconds
: 73728 rows, 1888 columns, 222772 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 73728 rows, 1888 columns and 222772 nonzeros
Model fingerprint: 0x539337ec
Variable types: 43 continuous, 1845 integer (1845 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 3.0000000
Presolve removed 18840 rows and 18 columns
Presolve time: 0.48s
Presolved: 54888 rows, 1870 columns, 166627 nonzeros
Variable types: 0 continuous, 1870 integer (1827 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1870 rows, 56758 columns, 168497 nonzeros


Root relaxation: objective 3.600000e+01, 1560 iterations, 0.34 seconds (0.33 work units)

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

     0     0   36.00000    0  336    5.00000   36.00000   620%     -    3s
H    0     0                      11.0000000   36.00000   227%     -    3s
     0     0   36.00000    0  519   11.00000   36.00000   227%     -    8s
H    0     0                      12.0000000   36.00000   200%     -    8s
     0     0   36.00000    0  508   12.00000   36.00000   200%     -    8s
H    0     0                      13.0000000   36.00000   177%     -   31s
     0     0   36.00000    0  514   13.00000   36.00000   177%     -   31s
     0     0   36.00000    0  510   13.00000   36.00000   177%     -   32s
H    0     0                      14.0000000   36.00000   157%     -   45s
H    0     0                      15.0000000   36.00000   140%     -   45s
H    0     0                      16.0000000   36.00000   125%     -   45s
     0     0   36.00000    0  375   16.00000   36.00000   125%     -   45s
     0     0   36.00000    0  351   16.00000   36.00000   125%     -   45s
     0     0   36.00000    0  527   16.00000   36.00000   125%     -   50s

Cutting planes:
  Cover: 29
  Clique: 17
  MIR: 109
  GUB cover: 1
  Zero half: 33
  RLT: 57
  BQP: 2

Explored 1 nodes (45158 simplex iterations) in 50.06 seconds (43.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 16 15 14 ... 3

Time limit reached
Best objective 1.600000000000e+01, best bound 3.600000000000e+01, gap 125.0000%

Wrote result file './lp_solutions/grafo10660.37.sol'

