
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:26:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5814.36.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/grafo5814.36.lp
Reading time = 0.10 seconds
: 58246 rows, 1630 columns, 175962 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 58246 rows, 1630 columns and 175962 nonzeros
Model fingerprint: 0x727cac35
Variable types: 38 continuous, 1592 integer (1592 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 4.0000000
Presolve removed 15651 rows and 14 columns
Presolve time: 0.38s
Presolved: 42595 rows, 1616 columns, 129280 nonzeros
Variable types: 0 continuous, 1616 integer (1578 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 27019 rows, 17192 columns, 98128 nonzeros


Root relaxation: objective 4.100000e+01, 1804 iterations, 0.61 seconds (0.52 work units)

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

     0     0   41.00000    0  267    7.00000   41.00000   486%     -    2s
H    0     0                       9.0000000   41.00000   356%     -    2s
H    0     0                      10.0000000   41.00000   310%     -    2s
H    0     0                      11.0000000   41.00000   273%     -    2s
     0     0   41.00000    0  529   11.00000   41.00000   273%     -    6s
H    0     0                      12.0000000   41.00000   242%     -    6s
H    0     0                      13.0000000   41.00000   215%     -    7s
     0     0   41.00000    0  518   13.00000   41.00000   215%     -    7s
H    0     0                      14.0000000   41.00000   193%     -   19s
H    0     0                      15.0000000   41.00000   173%     -   19s
     0     0   40.50000    0  572   15.00000   40.50000   170%     -   19s
     0     0   40.50000    0  564   15.00000   40.50000   170%     -   20s
     0     0   39.90000    0  437   15.00000   39.90000   166%     -   41s
     0     0   39.90000    0  433   15.00000   39.90000   166%     -   41s
     0     0   39.90000    0  700   15.00000   39.90000   166%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 10
  MIR: 121
  GUB cover: 1
  Zero half: 69
  RLT: 65
  BQP: 1

Explored 1 nodes (47813 simplex iterations) in 50.13 seconds (37.71 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 15 14 13 ... 4

Time limit reached
Best objective 1.500000000000e+01, best bound 3.900000000000e+01, gap 160.0000%

Wrote result file './lp_solutions/grafo5814.36.sol'

