
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 17:15:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1384.27.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/grafo1384.27.lp
Reading time = 0.21 seconds
: 93681 rows, 1149 columns, 281891 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 93681 rows, 1149 columns and 281891 nonzeros
Model fingerprint: 0x3f89a682
Variable types: 31 continuous, 1118 integer (1118 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 45096 rows and 5 columns
Presolve time: 0.79s
Presolved: 48585 rows, 1144 columns, 146913 nonzeros
Variable types: 0 continuous, 1144 integer (1113 binary)
Root relaxation presolved: 1136 rows, 49721 columns, 148057 nonzeros


Root relaxation: objective 3.600000e+01, 1248 iterations, 0.48 seconds (0.36 work units)

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

     0     0   36.00000    0  231          -   36.00000      -     -    5s
H    0     0                       9.0000000   36.00000   300%     -    5s
H    0     0                      10.0000000   36.00000   260%     -    5s
H    0     0                      13.0000000   36.00000   177%     -    5s
     0     0   36.00000    0  485   13.00000   36.00000   177%     -   10s
     0     0   36.00000    0  480   13.00000   36.00000   177%     -   10s
     0     0   36.00000    0  341   13.00000   36.00000   177%     -   41s
     0     0   36.00000    0  334   13.00000   36.00000   177%     -   41s
     0     0   36.00000    0  492   13.00000   36.00000   177%     -   50s

Cutting planes:
  Cover: 30
  Clique: 19
  MIR: 73
  StrongCG: 1
  GUB cover: 1
  Zero half: 54
  RLT: 68

Explored 1 nodes (28515 simplex iterations) in 50.08 seconds (32.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 10 9 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.600000000000e+01, gap 176.9231%

Wrote result file './lp_solutions/grafo1384.27.sol'

