
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:31:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1147.18.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/grafo1147.18.lp
Reading time = 0.02 seconds
: 3478 rows, 285 columns, 10476 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 3478 rows, 285 columns and 10476 nonzeros
Model fingerprint: 0x5b0a0007
Variable types: 12 continuous, 273 integer (273 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 926 rows and 9 columns
Presolve time: 0.09s
Presolved: 2552 rows, 276 columns, 7785 nonzeros
Variable types: 0 continuous, 276 integer (264 binary)
Found heuristic solution: objective 2.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.100000e+01, 146 iterations, 0.02 seconds (0.01 work units)

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

     0     0   11.00000    0   69    3.00000   11.00000   267%     -    0s
H    0     0                       4.0000000   11.00000   175%     -    0s
     0     0   11.00000    0   72    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   85    4.00000   11.00000   175%     -    0s
     0     0   10.66667    0   73    4.00000   10.66667   167%     -    1s
     0     0   10.00000    0   77    4.00000   10.00000   150%     -    1s
H    0     0                       5.0000000   10.00000   100%     -    1s
     0     0   10.00000    0   77    5.00000   10.00000   100%     -    1s
     0     0   10.00000    0   73    5.00000   10.00000   100%     -    1s
     0     0   10.00000    0   67    5.00000   10.00000   100%     -    1s
     0     0    9.66667    0   68    5.00000    9.66667  93.3%     -    2s
     0     0    9.66667    0   82    5.00000    9.66667  93.3%     -    2s
H    0     0                       6.0000000    9.66667  61.1%     -    2s
     0     0    9.66667    0   67    6.00000    9.66667  61.1%     -    2s
     0     0    9.66667    0   66    6.00000    9.66667  61.1%     -    2s
     0     2    9.66667    0   66    6.00000    9.66667  61.1%     -    2s
  1695   718 infeasible   19         6.00000    9.66667  61.1%  26.8    5s
  3089   994     cutoff   26         6.00000    9.58333  59.7%  31.0   10s
  3805   917    7.00000   27  129    6.00000    9.00000  50.0%  33.5   15s
  5508   537    8.00000   22  136    6.00000    8.00000  33.3%  37.2   20s

Cutting planes:
  Cover: 1
  MIR: 3
  Inf proof: 6
  RLT: 3

Explored 7629 nodes (293071 simplex iterations) in 23.91 seconds (6.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 6 6 6 ... 2

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/grafo1147.18.sol'

