
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:09:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2825.18.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/grafo2825.18.lp
Reading time = 0.01 seconds
: 3708 rows, 339 columns, 11238 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 3708 rows, 339 columns and 11238 nonzeros
Model fingerprint: 0x094eb59a
Variable types: 15 continuous, 324 integer (324 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 3.0000000
Presolve removed 721 rows and 7 columns
Presolve time: 0.03s
Presolved: 2987 rows, 332 columns, 9141 nonzeros
Variable types: 0 continuous, 332 integer (317 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.400000e+01, 142 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   14.00000    0   73    5.00000   14.00000   180%     -    0s
H    0     0                       6.0000000   14.00000   133%     -    0s
     0     0   14.00000    0  117    6.00000   14.00000   133%     -    0s
     0     0   14.00000    0  108    6.00000   14.00000   133%     -    0s
     0     0   13.66667    0   93    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0   85    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0   89    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0   86    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0   79    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0   79    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0  110    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0  111    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0   96    6.00000   13.66667   128%     -    0s
     0     0   13.66667    0   82    6.00000   13.66667   128%     -    1s
H    0     0                       8.0000000   13.66667  70.8%     -    1s
     0     2   13.66667    0   74    8.00000   13.66667  70.8%     -    1s
  2066   929    9.96429   16  160    8.00000   13.00000  62.5%  39.8    5s
  3116  1019   10.25000   33  105    8.00000   13.00000  62.5%  43.9   10s
  6048   427     cutoff   30         8.00000   10.66667  33.3%  46.8   15s

Cutting planes:
  Cover: 1
  MIR: 5
  Inf proof: 12
  Zero half: 3
  RLT: 8
  Relax-and-lift: 1

Explored 7373 nodes (335172 simplex iterations) in 16.69 seconds (7.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 8 8 8 ... 3

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2825.18.sol'

