
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:37:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7316.39.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/grafo7316.39.lp
Reading time = 0.19 seconds
: 118962 rows, 1780 columns, 358117 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 118962 rows, 1780 columns and 358117 nonzeros
Model fingerprint: 0x7be4ee18
Variable types: 37 continuous, 1743 integer (1743 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 54454 rows and 42 columns
Presolve time: 0.79s
Presolved: 64508 rows, 1738 columns, 195108 nonzeros
Variable types: 0 continuous, 1738 integer (1701 binary)
Root relaxation presolved: 1735 rows, 66243 columns, 196846 nonzeros


Root relaxation: objective 3.900000e+01, 1834 iterations, 0.49 seconds (0.51 work units)

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

     0     0   39.00000    0  437          -   39.00000      -     -   10s
H    0     0                       4.0000000   39.00000   875%     -   12s
     0     0   39.00000    0  585    4.00000   39.00000   875%     -   17s
H    0     0                       8.0000000   39.00000   387%     -   17s
     0     0   39.00000    0  566    8.00000   39.00000   387%     -   18s
H    0     0                       9.0000000   39.00000   333%     -   32s
H    0     0                      12.0000000   39.00000   225%     -   32s
     0     0   39.00000    0  452   12.00000   39.00000   225%     -   32s
     0     0   39.00000    0  458   12.00000   39.00000   225%     -   33s
H    0     0                      13.0000000   39.00000   200%     -   45s
     0     0   39.00000    0  331   13.00000   39.00000   200%     -   45s
     0     0   39.00000    0  328   13.00000   39.00000   200%     -   46s
     0     0          -    0        13.00000   39.00000   200%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 39
  Clique: 24
  MIR: 81
  GUB cover: 2
  Zero half: 61
  RLT: 67
  BQP: 3

Explored 1 nodes (42702 simplex iterations) in 50.08 seconds (54.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 9 ... 4

Time limit reached
Best objective 1.300000000000e+01, best bound 3.900000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo7316.39.sol'

