
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:12:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1266.23.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/grafo1266.23.lp
Reading time = 0.01 seconds
: 4947 rows, 406 columns, 14911 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 4947 rows, 406 columns and 14911 nonzeros
Model fingerprint: 0x63e3b5fb
Variable types: 14 continuous, 392 integer (392 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 2.0000000
Presolve removed 458 rows and 12 columns
Presolve time: 0.05s
Presolved: 4489 rows, 394 columns, 13642 nonzeros
Variable types: 0 continuous, 394 integer (380 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 9.000000e+00, 118 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    9.00000    0   44    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   86    5.00000    9.00000  80.0%     -    0s
     0     0    8.00000    0   43    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   42    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   64    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   63    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   56    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   57    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   59    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   59    5.00000    8.00000  60.0%     -    0s
H    0     0                       6.0000000    8.00000  33.3%     -    1s
     0     0    8.00000    0   45    6.00000    8.00000  33.3%     -    1s
     0     0    8.00000    0   45    6.00000    8.00000  33.3%     -    1s
     0     2    8.00000    0   45    6.00000    8.00000  33.3%     -    1s
  1622   326    7.00000   17   50    6.00000    8.00000  33.3%  63.1    5s
  3316   191    7.00000   10   52    6.00000    7.00000  16.7%  75.5   10s

Cutting planes:
  Cover: 137
  Clique: 4
  MIR: 51
  StrongCG: 1
  GUB cover: 2
  Inf proof: 79
  Zero half: 6
  RLT: 33
  BQP: 2

Explored 5042 nodes (435337 simplex iterations) in 14.56 seconds (11.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 6 5 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/grafo1266.23.sol'

