
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:26:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2257.14.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/grafo2257.14.lp
Reading time = 0.01 seconds
: 2132 rows, 244 columns, 6463 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 2132 rows, 244 columns and 6463 nonzeros
Model fingerprint: 0x98db005f
Variable types: 14 continuous, 230 integer (230 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 1.0000000
Presolve removed 461 rows and 15 columns
Presolve time: 0.02s
Presolved: 1671 rows, 229 columns, 5191 nonzeros
Variable types: 0 continuous, 229 integer (215 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 9.000000e+00, 84 iterations, 0.00 seconds (0.00 work units)

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

     0     0    9.00000    0   33    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   72    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   68    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   80    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   92    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   78    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   97    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   84    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   88    4.00000    9.00000   125%     -    0s
     0     0    8.66667    0   50    4.00000    8.66667   117%     -    0s
H    0     0                       5.0000000    8.66667  73.3%     -    0s
     0     0    8.66667    0   63    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   48    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   48    5.00000    8.66667  73.3%     -    0s
     0     2    8.66667    0   47    5.00000    8.66667  73.3%     -    0s
H   76    86                       6.0000000    8.66667  44.4%  55.9    0s
  1799   641    7.66667   12   70    6.00000    8.50000  41.7%  70.8    5s
  3994   430    7.00000   16   72    6.00000    7.00000  16.7%  84.5   10s
  5538   172    7.00000   16   53    6.00000    7.00000  16.7%  98.9   15s

Cutting planes:
  Gomory: 3
  Cover: 155
  Clique: 3
  MIR: 75
  StrongCG: 3
  GUB cover: 2
  Inf proof: 57
  Zero half: 10
  RLT: 29
  PSD: 2

Explored 6686 nodes (705245 simplex iterations) in 18.42 seconds (14.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 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/grafo2257.14.sol'

