
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:25:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11122.37.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/grafo11122.37.lp
Reading time = 0.14 seconds
: 88076 rows, 1736 columns, 265570 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 88076 rows, 1736 columns and 265570 nonzeros
Model fingerprint: 0x29204e7b
Variable types: 39 continuous, 1697 integer (1697 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 3.0000000
Presolve removed 29594 rows and 33 columns
Presolve time: 0.71s
Presolved: 58482 rows, 1703 columns, 177122 nonzeros
Variable types: 0 continuous, 1703 integer (1664 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 1703 rows, 60185 columns, 178825 nonzeros


Root relaxation: objective 3.200000e+01, 1829 iterations, 0.42 seconds (0.48 work units)

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

     0     0   32.00000    0  418   12.00000   32.00000   167%     -    4s
H    0     0                      14.0000000   32.00000   129%     -    6s
     0     0   32.00000    0  527   14.00000   32.00000   129%     -   11s
     0     0   32.00000    0  492   14.00000   32.00000   129%     -   12s
     0     0   32.00000    0  395   14.00000   32.00000   129%     -   25s
H    0     0                      15.0000000   32.00000   113%     -   25s
     0     0   32.00000    0  425   15.00000   32.00000   113%     -   26s
     0     0   32.00000    0  465   15.00000   32.00000   113%     -   37s
     0     0   32.00000    0  490   15.00000   32.00000   113%     -   38s
     0     0   32.00000    0  518   15.00000   32.00000   113%     -   47s
     0     0   32.00000    0  497   15.00000   32.00000   113%     -   48s
     0     0   32.00000    0  502   15.00000   32.00000   113%     -   50s

Cutting planes:
  Cover: 9
  Clique: 15
  MIR: 50
  GUB cover: 1
  Zero half: 33
  RLT: 58
  BQP: 1

Explored 1 nodes (45069 simplex iterations) in 50.06 seconds (47.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 12 3 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.200000000000e+01, gap 113.3333%

Wrote result file './lp_solutions/grafo11122.37.sol'

