
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:36:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7509.36.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/grafo7509.36.lp
Reading time = 0.09 seconds
: 53074 rows, 1554 columns, 160323 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 53074 rows, 1554 columns and 160323 nonzeros
Model fingerprint: 0xa2320e1f
Variable types: 36 continuous, 1518 integer (1518 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 15145 rows and 17 columns
Presolve time: 0.37s
Presolved: 37929 rows, 1537 columns, 115290 nonzeros
Variable types: 0 continuous, 1537 integer (1501 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 23649 rows, 15817 columns, 86730 nonzeros


Root relaxation: objective 3.300000e+01, 1775 iterations, 0.61 seconds (0.59 work units)

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

     0     0   33.00000    0  403    9.00000   33.00000   267%     -    2s
H    0     0                      10.0000000   33.00000   230%     -    2s
     0     0   33.00000    0  718   10.00000   33.00000   230%     -    7s
     0     0   33.00000    0  665   10.00000   33.00000   230%     -    8s
     0     0   33.00000    0  525   10.00000   33.00000   230%     -   19s
     0     0   33.00000    0  488   10.00000   33.00000   230%     -   20s
H    0     0                      12.0000000   33.00000   175%     -   30s
     0     0   33.00000    0  465   12.00000   33.00000   175%     -   30s
     0     0   33.00000    0  403   12.00000   33.00000   175%     -   30s
     0     0   33.00000    0  467   12.00000   33.00000   175%     -   49s
     0     0   33.00000    0  421   12.00000   33.00000   175%     -   49s
     0     0          -    0        12.00000   33.00000   175%     -   50s

Cutting planes:
  Cover: 15
  Clique: 6
  MIR: 94
  StrongCG: 1
  GUB cover: 1
  Inf proof: 1
  Zero half: 32
  RLT: 38

Explored 1 nodes (62548 simplex iterations) in 50.06 seconds (47.00 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.300000000000e+01, gap 175.0000%

Wrote result file './lp_solutions/grafo7509.36.sol'

