
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:47:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2512.12.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/grafo2512.12.lp
Reading time = 0.01 seconds
: 2311 rows, 219 columns, 7000 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 2311 rows, 219 columns and 7000 nonzeros
Model fingerprint: 0x29b7e41f
Variable types: 14 continuous, 205 integer (205 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 769 rows and 15 columns
Presolve time: 0.03s
Presolved: 1542 rows, 204 columns, 4810 nonzeros
Variable types: 0 continuous, 204 integer (190 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 9.000000e+00, 168 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   73    2.00000    9.00000   350%     -    0s
H    0     0                       3.0000000    9.00000   200%     -    0s
     0     0    9.00000    0   89    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   85    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   75    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0  105    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0  103    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   37    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   37    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   72    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   77    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   71    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   71    5.00000    9.00000  80.0%     -    0s
     0     2    9.00000    0   71    5.00000    9.00000  80.0%     -    0s
*   94    86              17       6.0000000    9.00000  50.0%  43.4    1s

Cutting planes:
  Gomory: 1
  Cover: 4
  MIR: 52
  StrongCG: 1
  GUB cover: 3
  Zero half: 5
  RLT: 27

Explored 368 nodes (11550 simplex iterations) in 1.36 seconds (0.64 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/grafo2512.12.sol'

