
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:29:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6861.40.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/grafo6861.40.lp
Reading time = 0.08 seconds
: 53422 rows, 1760 columns, 161504 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 53422 rows, 1760 columns and 161504 nonzeros
Model fingerprint: 0xef02a6d0
Variable types: 38 continuous, 1722 integer (1722 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 11059 rows and 19 columns
Presolve time: 0.36s
Presolved: 42363 rows, 1741 columns, 128679 nonzeros
Variable types: 0 continuous, 1741 integer (1703 binary)
Root relaxation presolved: 24047 rows, 20057 columns, 92047 nonzeros


Root relaxation: objective 3.200000e+01, 4332 iterations, 1.97 seconds (1.91 work units)
Total elapsed time = 5.00s (DegenMoves)

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

     0     0   32.00000    0  420          -   32.00000      -     -    5s
H    0     0                      11.0000000   32.00000   191%     -    5s
     0     0   32.00000    0  713   11.00000   32.00000   191%     -   12s
     0     0   32.00000    0  686   11.00000   32.00000   191%     -   12s
H    0     0                      12.0000000   32.00000   167%     -   23s
     0     0   32.00000    0  311   12.00000   32.00000   167%     -   23s
     0     0   32.00000    0  337   12.00000   32.00000   167%     -   24s
H    0     0                      13.0000000   32.00000   146%     -   32s
     0     0   32.00000    0  374   13.00000   32.00000   146%     -   32s
     0     0   32.00000    0  368   13.00000   32.00000   146%     -   33s
     0     0   32.00000    0  559   13.00000   32.00000   146%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 27
  Clique: 20
  MIR: 92
  StrongCG: 3
  GUB cover: 1
  Zero half: 34
  RLT: 57
  BQP: 2

Explored 1 nodes (66300 simplex iterations) in 50.05 seconds (48.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 12 11 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.200000000000e+01, gap 146.1538%

Wrote result file './lp_solutions/grafo6861.40.sol'

