
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 18:23:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1839.13.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/grafo1839.13.lp
Reading time = 0.01 seconds
: 7046 rows, 237 columns, 21223 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 7046 rows, 237 columns and 21223 nonzeros
Model fingerprint: 0x67461706
Variable types: 11 continuous, 226 integer (226 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 2.0000000
Presolve removed 4087 rows and 3 columns
Presolve time: 0.03s
Presolved: 2959 rows, 234 columns, 9121 nonzeros
Variable types: 0 continuous, 234 integer (223 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 164 iterations, 0.01 seconds (0.01 work units)

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

     0     0    9.00000    0   59    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   84    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   81    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   65    5.00000    9.00000  80.0%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
     0     0    9.00000    0   67    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   73    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   66    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   55    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   55    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   67    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   76    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   66    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   66    6.00000    9.00000  50.0%     -    0s
     0     2    9.00000    0   62    6.00000    9.00000  50.0%     -    0s
  1842   961    8.00000   15   63    6.00000    9.00000  50.0%  67.2    5s
  2317  1271    8.60000   43  100    6.00000    9.00000  50.0%  74.9   10s
  2976  1360    7.00000   39   65    6.00000    9.00000  50.0%  75.9   15s
  8655  2338    7.00000   36   83    6.00000    8.00000  33.3%  71.8   20s
 14190    10 infeasible   41         6.00000    7.00000  16.7%  64.8   25s

Cutting planes:
  Clique: 1
  Flow cover: 4

Explored 15161 nodes (970582 simplex iterations) in 25.23 seconds (21.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 6 6 6 ... 2

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1839.13.sol'

