
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:48:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7739.40.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/grafo7739.40.lp
Reading time = 0.09 seconds
: 54168 rows, 1756 columns, 163696 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 54168 rows, 1756 columns and 163696 nonzeros
Model fingerprint: 0x26e38e6b
Variable types: 37 continuous, 1719 integer (1719 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 10882 rows and 16 columns
Presolve time: 0.34s
Presolved: 43286 rows, 1740 columns, 131500 nonzeros
Variable types: 0 continuous, 1740 integer (1703 binary)
Root relaxation presolved: 25636 rows, 19390 columns, 96200 nonzeros


Root relaxation: objective 3.600000e+01, 1214 iterations, 0.31 seconds (0.26 work units)

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

     0     0   36.00000    0  266          -   36.00000      -     -    1s
H    0     0                      10.0000000   36.00000   260%     -    1s
H    0     0                      11.0000000   36.00000   227%     -    1s
     0     0   36.00000    0  627   11.00000   36.00000   227%     -    5s
     0     0   36.00000    0  634   11.00000   36.00000   227%     -    5s
     0     0   36.00000    0  461   11.00000   36.00000   227%     -   18s
     0     0   36.00000    0  537   11.00000   36.00000   227%     -   20s
H    0     0                      12.0000000   36.00000   200%     -   40s
H    0     0                      13.0000000   36.00000   177%     -   40s
     0     0   36.00000    0  489   13.00000   36.00000   177%     -   40s
     0     0   36.00000    0  466   13.00000   36.00000   177%     -   41s
     0     0   36.00000    0  529   13.00000   36.00000   177%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 31
  Clique: 4
  MIR: 149
  StrongCG: 1
  Zero half: 22
  RLT: 51

Explored 1 nodes (63597 simplex iterations) in 50.04 seconds (50.73 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 12 11 10 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.600000000000e+01, gap 176.9231%

Wrote result file './lp_solutions/grafo7739.40.sol'

