
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:30:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7269.40.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/grafo7269.40.lp
Reading time = 0.08 seconds
: 51717 rows, 1843 columns, 156474 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 51717 rows, 1843 columns and 156474 nonzeros
Model fingerprint: 0x83e1dfad
Variable types: 41 continuous, 1802 integer (1802 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 1.0000000
Presolve removed 6563 rows and 36 columns
Presolve time: 0.33s
Presolved: 45154 rows, 1807 columns, 137140 nonzeros
Variable types: 0 continuous, 1807 integer (1766 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 24614 rows, 22347 columns, 96060 nonzeros


Root relaxation: objective 3.700000e+01, 2572 iterations, 0.92 seconds (0.87 work units)
Total elapsed time = 5.30s (DegenMoves)

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

     0     0   37.00000    0  472    6.00000   37.00000   517%     -    5s
H    0     0                       9.0000000   37.00000   311%     -    5s
H    0     0                      12.0000000   37.00000   208%     -    5s
     0     0   37.00000    0  720   12.00000   37.00000   208%     -   13s
     0     0   37.00000    0  743   12.00000   37.00000   208%     -   14s
     0     0   37.00000    0  412   12.00000   37.00000   208%     -   23s
     0     0   37.00000    0  371   12.00000   37.00000   208%     -   23s
     0     0   37.00000    0  429   12.00000   37.00000   208%     -   42s
     0     0   37.00000    0  429   12.00000   37.00000   208%     -   42s
     0     0   37.00000    0  567   12.00000   37.00000   208%     -   50s

Cutting planes:
  Cover: 20
  Clique: 5
  MIR: 125
  StrongCG: 1
  GUB cover: 3
  Zero half: 27
  RLT: 55

Explored 1 nodes (63450 simplex iterations) in 50.04 seconds (48.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 9 6 1 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo7269.40.sol'

