
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:59:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6183.43.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/grafo6183.43.lp
Reading time = 0.10 seconds
: 62115 rows, 2087 columns, 187940 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 62115 rows, 2087 columns and 187940 nonzeros
Model fingerprint: 0x86cfd715
Variable types: 44 continuous, 2043 integer (2043 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 6441 rows and 1 columns
Presolve time: 0.34s
Presolved: 55674 rows, 2086 columns, 168956 nonzeros
Variable types: 0 continuous, 2086 integer (2042 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 30089 rows, 27671 columns, 117786 nonzeros


Root relaxation: objective 3.100000e+01, 1893 iterations, 0.54 seconds (0.48 work units)

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

     0     0   31.00000    0  350    8.00000   31.00000   287%     -    2s
H    0     0                       9.0000000   31.00000   244%     -    2s
H    0     0                      10.0000000   31.00000   210%     -    3s
H    0     0                      11.0000000   31.00000   182%     -    3s
     0     0   31.00000    0  660   11.00000   31.00000   182%     -    6s
     0     0   31.00000    0  651   11.00000   31.00000   182%     -    7s
H    0     0                      12.0000000   31.00000   158%     -   40s
     0     0   31.00000    0  462   12.00000   31.00000   158%     -   40s
     0     0   31.00000    0  496   12.00000   31.00000   158%     -   40s
     0     0   31.00000    0  669   12.00000   31.00000   158%     -   50s

Cutting planes:
  Cover: 19
  Clique: 2
  MIR: 111
  StrongCG: 2
  Zero half: 28
  RLT: 38

Explored 1 nodes (48277 simplex iterations) in 50.06 seconds (47.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 8

Time limit reached
Best objective 1.200000000000e+01, best bound 3.100000000000e+01, gap 158.3333%

Wrote result file './lp_solutions/grafo6183.43.sol'

