
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:25:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2184.18.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/grafo2184.18.lp
Reading time = 0.01 seconds
: 5039 rows, 406 columns, 15320 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 5039 rows, 406 columns and 15320 nonzeros
Model fingerprint: 0x681b9f76
Variable types: 18 continuous, 388 integer (388 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 1205 rows and 9 columns
Presolve time: 0.04s
Presolved: 3834 rows, 397 columns, 11824 nonzeros
Variable types: 0 continuous, 397 integer (379 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.300000e+01, 237 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   13.00000    0   98    4.00000   13.00000   225%     -    0s
H    0     0                       6.0000000   13.00000   117%     -    0s
     0     0   13.00000    0   84    6.00000   13.00000   117%     -    0s
H    0     0                       7.0000000   13.00000  85.7%     -    0s
     0     0   13.00000    0   86    7.00000   13.00000  85.7%     -    0s
     0     0   12.00000    0   48    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   53    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   82    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   82    7.00000   12.00000  71.4%     -    0s
H    0     0                       8.0000000   12.00000  50.0%     -    0s
     0     0   12.00000    0   89    8.00000   12.00000  50.0%     -    0s
H    0     0                       9.0000000   12.00000  33.3%     -    0s
     0     0   12.00000    0  118    9.00000   12.00000  33.3%     -    0s
     0     0   12.00000    0   64    9.00000   12.00000  33.3%     -    0s
     0     0   12.00000    0   80    9.00000   12.00000  33.3%     -    0s
     0     0   12.00000    0   71    9.00000   12.00000  33.3%     -    0s
     0     0   12.00000    0   53    9.00000   12.00000  33.3%     -    0s
     0     2   12.00000    0   49    9.00000   12.00000  33.3%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 33
  Clique: 7
  MIR: 77
  StrongCG: 9
  GUB cover: 3
  Inf proof: 100
  Zero half: 5
  RLT: 30
  BQP: 3

Explored 4449 nodes (165580 simplex iterations) in 4.77 seconds (5.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 7 ... 4

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2184.18.sol'

