
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:29:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo832.21.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/grafo832.21.lp
Reading time = 0.11 seconds
: 63561 rows, 805 columns, 191255 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 63561 rows, 805 columns and 191255 nonzeros
Model fingerprint: 0x71d45db7
Variable types: 27 continuous, 778 integer (778 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 -0.0000000
Presolve removed 30564 rows and 12 columns
Presolve time: 0.43s
Presolved: 32997 rows, 793 columns, 99720 nonzeros
Variable types: 0 continuous, 793 integer (766 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 793 rows, 33790 columns, 100513 nonzeros


Root relaxation: objective 3.200000e+01, 1452 iterations, 0.33 seconds (0.45 work units)

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

     0     0   32.00000    0  338    6.00000   32.00000   433%     -    5s
     0     0   32.00000    0  468    6.00000   32.00000   433%     -    8s
     0     0   32.00000    0  453    6.00000   32.00000   433%     -    8s
     0     0   32.00000    0  259    6.00000   32.00000   433%     -   12s
     0     0   32.00000    0  245    6.00000   32.00000   433%     -   12s
H    0     0                       7.0000000   32.00000   357%     -   20s
     0     0   31.66667    0  357    7.00000   31.66667   352%     -   20s
     0     0   31.66667    0  316    7.00000   31.66667   352%     -   20s
     0     0   31.66667    0  287    7.00000   31.66667   352%     -   25s
     0     0   31.66667    0  282    7.00000   31.66667   352%     -   25s
H    0     0                       8.0000000   31.66667   296%     -   40s
H    0     0                       9.0000000   31.66667   252%     -   40s
     0     0   31.66667    0  332    9.00000   31.66667   252%     -   40s
     0     0   31.66667    0  335    9.00000   31.66667   252%     -   41s
H    0     0                      10.0000000   31.66667   217%     -   50s
H    0     0                      11.0000000   31.66667   188%     -   50s
     0     0   31.66667    0  339   11.00000   31.66667   188%     -   50s

Cutting planes:
  Cover: 1
  Clique: 26
  MIR: 28
  RLT: 20

Explored 1 nodes (57898 simplex iterations) in 50.06 seconds (49.91 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 11 10 9 ... -0

Time limit reached
Best objective 1.100000000000e+01, best bound 3.100000000000e+01, gap 181.8182%

Wrote result file './lp_solutions/grafo832.21.sol'

