
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:49:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2569.14.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/grafo2569.14.lp
Reading time = 0.01 seconds
: 2008 rows, 211 columns, 6060 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 2008 rows, 211 columns and 6060 nonzeros
Model fingerprint: 0x5c8c5246
Variable types: 12 continuous, 199 integer (199 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 -0.0000000
Presolve removed 562 rows and 12 columns
Presolve time: 0.02s
Presolved: 1446 rows, 199 columns, 4470 nonzeros
Variable types: 0 continuous, 199 integer (187 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 8.000000e+00, 165 iterations, 0.04 seconds (0.01 work units)

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

     0     0    8.00000    0   51    2.00000    8.00000   300%     -    0s
H    0     0                       3.0000000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   60    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   59    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   74    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   56    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   39    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   42    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   37    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    7.66667    0   55    5.00000    7.66667  53.3%     -    0s
     0     0    7.66667    0   39    5.00000    7.66667  53.3%     -    0s
H    0     0                       6.0000000    7.66667  27.8%     -    0s
     0     0    7.66667    0   38    6.00000    7.66667  27.8%     -    0s
     0     0    7.50000    0   26    6.00000    7.50000  25.0%     -    0s
     0     0    7.50000    0   76    6.00000    7.50000  25.0%     -    0s
     0     0    7.50000    0   43    6.00000    7.50000  25.0%     -    0s
     0     0    7.50000    0   43    6.00000    7.50000  25.0%     -    0s
     0     2    7.50000    0   42    6.00000    7.50000  25.0%     -    0s

Cutting planes:
  Cover: 12
  MIR: 22
  GUB cover: 1
  Inf proof: 2
  Zero half: 9
  RLT: 14

Explored 79 nodes (3920 simplex iterations) in 0.75 seconds (0.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 6 5 4 ... -0

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/grafo2569.14.sol'

