
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:16:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5534.41.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/grafo5534.41.lp
Reading time = 0.10 seconds
: 62571 rows, 1770 columns, 188860 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 62571 rows, 1770 columns and 188860 nonzeros
Model fingerprint: 0x06643c2d
Variable types: 36 continuous, 1734 integer (1734 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 4.0000000
Presolve removed 15285 rows and 3 columns
Presolve time: 0.37s
Presolved: 47286 rows, 1767 columns, 143427 nonzeros
Variable types: 0 continuous, 1767 integer (1731 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 1765 rows, 49051 columns, 145194 nonzeros


Root relaxation: objective 3.100000e+01, 1250 iterations, 0.23 seconds (0.21 work units)

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

     0     0   31.00000    0  168   12.00000   31.00000   158%     -    1s
     0     0   30.00000    0  407   12.00000   30.00000   150%     -    3s
     0     0   30.00000    0  394   12.00000   30.00000   150%     -    4s
     0     0   30.00000    0  401   12.00000   30.00000   150%     -   12s
     0     0   30.00000    0  412   12.00000   30.00000   150%     -   13s
H    0     0                      13.0000000   30.00000   131%     -   26s
H    0     0                      14.0000000   30.00000   114%     -   26s
     0     0   30.00000    0  357   14.00000   30.00000   114%     -   26s
     0     0   30.00000    0  495   14.00000   30.00000   114%     -   28s
     0     0   30.00000    0  309   14.00000   30.00000   114%     -   38s
     0     0   30.00000    0  304   14.00000   30.00000   114%     -   38s
     0     0   30.00000    0  260   14.00000   30.00000   114%     -   45s
     0     0   30.00000    0  278   14.00000   30.00000   114%     -   46s
     0     0   30.00000    0  456   14.00000   30.00000   114%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 2
  Cover: 39
  Clique: 13
  MIR: 67
  StrongCG: 1
  Zero half: 157
  RLT: 54
  BQP: 1

Explored 1 nodes (69600 simplex iterations) in 50.04 seconds (48.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 12 4 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.000000000000e+01, gap 114.2857%

Wrote result file './lp_solutions/grafo5534.41.sol'

