
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:46:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1902.12.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/grafo1902.12.lp
Reading time = 0.01 seconds
: 1954 rows, 186 columns, 5898 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 1954 rows, 186 columns and 5898 nonzeros
Model fingerprint: 0xbd83006e
Variable types: 12 continuous, 174 integer (174 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 715 rows and 12 columns
Presolve time: 0.01s
Presolved: 1239 rows, 174 columns, 3849 nonzeros
Variable types: 0 continuous, 174 integer (162 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 8.000000e+00, 144 iterations, 0.01 seconds (0.00 work units)

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

     0     0    8.00000    0   49    2.00000    8.00000   300%     -    0s
H    0     0                       3.0000000    8.00000   167%     -    0s
     0     0    8.00000    0   57    3.00000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   57    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   57    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   48    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   39    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   34    4.00000    8.00000   100%     -    0s
     0     0    7.66667    0   61    4.00000    7.66667  91.7%     -    0s
     0     0    7.50000    0   47    4.00000    7.50000  87.5%     -    0s
     0     0    7.50000    0   47    4.00000    7.50000  87.5%     -    0s
     0     0    7.50000    0   54    4.00000    7.50000  87.5%     -    0s
     0     0    7.50000    0   54    4.00000    7.50000  87.5%     -    0s
     0     2    7.50000    0   54    4.00000    7.50000  87.5%     -    0s
*  209   142              18       5.0000000    7.50000  50.0%  39.4    1s

Cutting planes:
  Cover: 9
  MIR: 44
  StrongCG: 1
  GUB cover: 2
  Inf proof: 12
  Zero half: 2
  RLT: 14

Explored 496 nodes (15298 simplex iterations) in 1.23 seconds (0.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 5 4 3 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1902.12.sol'

