
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:09:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7243.37.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/grafo7243.37.lp
Reading time = 0.16 seconds
: 99144 rows, 1657 columns, 298628 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 99144 rows, 1657 columns and 298628 nonzeros
Model fingerprint: 0x1bf5f009
Variable types: 36 continuous, 1621 integer (1621 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 42732 rows and 41 columns
Presolve time: 0.81s
Presolved: 56412 rows, 1616 columns, 170800 nonzeros
Variable types: 0 continuous, 1616 integer (1580 binary)
Root relaxation presolved: 1616 rows, 58028 columns, 172416 nonzeros


Root relaxation: objective 3.400000e+01, 1839 iterations, 0.46 seconds (0.49 work units)

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

     0     0   34.00000    0  439          -   34.00000      -     -    5s
H    0     0                       9.0000000   34.00000   278%     -    6s
     0     0   34.00000    0  714    9.00000   34.00000   278%     -   12s
H    0     0                      10.0000000   34.00000   240%     -   12s
     0     0   34.00000    0  711   10.00000   34.00000   240%     -   13s
H    0     0                      11.0000000   34.00000   209%     -   41s
H    0     0                      12.0000000   34.00000   183%     -   41s
     0     0   34.00000    0  453   12.00000   34.00000   183%     -   41s
     0     0   34.00000    0  411   12.00000   34.00000   183%     -   42s
     0     0   34.00000    0  609   12.00000   34.00000   183%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 27
  Clique: 17
  MIR: 85
  StrongCG: 1
  GUB cover: 2
  Zero half: 40
  RLT: 69
  BQP: 1

Explored 1 nodes (40147 simplex iterations) in 50.07 seconds (47.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 10 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.400000000000e+01, gap 183.3333%

Wrote result file './lp_solutions/grafo7243.37.sol'

