
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:30:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11512.38.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/grafo11512.38.lp
Reading time = 0.11 seconds
: 67479 rows, 1779 columns, 203764 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 67479 rows, 1779 columns and 203764 nonzeros
Model fingerprint: 0xfd1ed53a
Variable types: 39 continuous, 1740 integer (1740 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 18047 rows and 26 columns
Presolve time: 0.50s
Presolved: 49432 rows, 1753 columns, 150112 nonzeros
Variable types: 0 continuous, 1753 integer (1714 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1753 rows, 51185 columns, 151865 nonzeros


Root relaxation: objective 3.300000e+01, 2410 iterations, 0.62 seconds (0.76 work units)
Total elapsed time = 6.15s (DegenMoves)

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

     0     0   33.00000    0  519    7.00000   33.00000   371%     -    6s
H    0     0                       8.0000000   33.00000   312%     -    6s
H    0     0                       9.0000000   33.00000   267%     -    6s
H    0     0                      10.0000000   33.00000   230%     -   13s
     0     0   33.00000    0  622   10.00000   33.00000   230%     -   13s
     0     0   33.00000    0  601   10.00000   33.00000   230%     -   14s
H    0     0                      12.0000000   33.00000   175%     -   18s
H    0     0                      13.0000000   33.00000   154%     -   34s
H    0     0                      14.0000000   33.00000   136%     -   34s
     0     0   32.00000    0  545   14.00000   32.00000   129%     -   34s
     0     0   32.00000    0  521   14.00000   32.00000   129%     -   35s
     0     0   32.00000    0  588   14.00000   32.00000   129%     -   50s

Cutting planes:
  Cover: 27
  Clique: 11
  MIR: 74
  StrongCG: 1
  GUB cover: 2
  Zero half: 56
  RLT: 71

Explored 1 nodes (49451 simplex iterations) in 50.06 seconds (46.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 14 13 12 ... 7

Time limit reached
Best objective 1.400000000000e+01, best bound 3.200000000000e+01, gap 128.5714%

Wrote result file './lp_solutions/grafo11512.38.sol'

