
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:19:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2883.15.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/grafo2883.15.lp
Reading time = 0.01 seconds
: 2054 rows, 238 columns, 6220 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 2054 rows, 238 columns and 6220 nonzeros
Model fingerprint: 0xed0aea0f
Variable types: 13 continuous, 225 integer (225 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 375 rows and 13 columns
Presolve time: 0.02s
Presolved: 1679 rows, 225 columns, 5191 nonzeros
Variable types: 0 continuous, 225 integer (212 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 8.000000e+00, 151 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   71    1.00000    8.00000   700%     -    0s
H    0     0                       2.0000000    8.00000   300%     -    0s
H    0     0                       3.0000000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   75    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    8.00000    0   71    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   47    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   45    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   18    5.00000    8.00000  60.0%     -    0s
H    0     0                       6.0000000    8.00000  33.3%     -    0s
     0     0    7.66667    0   18    6.00000    7.66667  27.8%     -    0s
     0     0    7.66667    0   33    6.00000    7.66667  27.8%     -    0s
     0     0    7.66667    0   25    6.00000    7.66667  27.8%     -    0s
     0     0    7.50000    0   31    6.00000    7.50000  25.0%     -    0s
     0     0    7.00000    0   44    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   44    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   32    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   23    6.00000    7.00000  16.7%     -    0s
     0     2    7.00000    0   18    6.00000    7.00000  16.7%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 8
  MIR: 15
  StrongCG: 1
  GUB cover: 2
  Inf proof: 4
  Zero half: 2
  RLT: 7

Explored 97 nodes (4087 simplex iterations) in 0.71 seconds (0.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 6 5 4 ... 1

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/grafo2883.15.sol'

