
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:43:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1853.13.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/grafo1853.13.lp
Reading time = 0.01 seconds
: 1852 rows, 198 columns, 5592 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 1852 rows, 198 columns and 5592 nonzeros
Model fingerprint: 0x86c0c064
Variable types: 12 continuous, 186 integer (186 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: 1290 rows, 186 columns, 4002 nonzeros
Variable types: 0 continuous, 186 integer (174 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 8.000000e+00, 107 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   63    1.00000    8.00000   700%     -    0s
H    0     0                       3.0000000    8.00000   167%     -    0s
     0     0    8.00000    0   45    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   52    3.00000    8.00000   167%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    7.50000    0   44    5.00000    7.50000  50.0%     -    0s
     0     0    7.00000    0   44    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   50    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   47    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   49    5.00000    7.00000  40.0%     -    0s
     0     0    6.66667    0   49    5.00000    6.66667  33.3%     -    0s
     0     0    6.66667    0   55    5.00000    6.66667  33.3%     -    0s
     0     0    6.66667    0   54    5.00000    6.66667  33.3%     -    0s
     0     2    6.66667    0   44    5.00000    6.66667  33.3%     -    0s
H  161   104                       6.0000000    6.66667  11.1%  38.8    0s

Cutting planes:
  Gomory: 2
  Cover: 4
  MIR: 15
  StrongCG: 1
  Zero half: 8
  RLT: 17

Explored 178 nodes (8167 simplex iterations) in 0.98 seconds (0.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 3 ... -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/grafo1853.13.sol'

