
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:09:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2793.21.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/grafo2793.21.lp
Reading time = 0.02 seconds
: 4160 rows, 357 columns, 12562 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 4160 rows, 357 columns and 12562 nonzeros
Model fingerprint: 0x7a43709b
Variable types: 14 continuous, 343 integer (343 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 486 rows and 9 columns
Presolve time: 0.05s
Presolved: 3674 rows, 348 columns, 11182 nonzeros
Variable types: 0 continuous, 348 integer (334 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 8.000000e+00, 167 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    8.00000    0   65    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   84    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    7.16667    0   84    5.00000    7.16667  43.3%     -    0s
     0     0    7.00000    0   85    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   69    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   69    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   63    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   53    5.00000    7.00000  40.0%     -    0s
     0     0    6.66667    0   24    5.00000    6.66667  33.3%     -    0s
     0     0    6.66667    0   26    5.00000    6.66667  33.3%     -    0s
     0     0    6.50000    0   31    5.00000    6.50000  30.0%     -    0s
     0     0    6.50000    0   29    5.00000    6.50000  30.0%     -    0s
     0     0    6.50000    0   36    5.00000    6.50000  30.0%     -    0s
     0     0    6.50000    0   36    5.00000    6.50000  30.0%     -    0s
     0     2    6.50000    0   36    5.00000    6.50000  30.0%     -    1s
*  187    70              11       6.0000000    6.50000  8.33%  27.9    1s

Cutting planes:
  Cover: 2
  Clique: 1
  MIR: 28
  GUB cover: 1
  Inf proof: 1
  Zero half: 5
  RLT: 12
  BQP: 1

Explored 191 nodes (8350 simplex iterations) in 1.51 seconds (0.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 6 5 4 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/grafo2793.21.sol'

