
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:39:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2421.17.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/grafo2421.17.lp
Reading time = 0.01 seconds
: 2504 rows, 269 columns, 7573 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 2504 rows, 269 columns and 7573 nonzeros
Model fingerprint: 0x1ebaa756
Variable types: 13 continuous, 256 integer (256 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 373 rows and 12 columns
Presolve time: 0.02s
Presolved: 2131 rows, 257 columns, 6550 nonzeros
Variable types: 0 continuous, 257 integer (244 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 8.000000e+00, 94 iterations, 0.01 seconds (0.00 work units)

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

     0     0    8.00000    0   30    3.00000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   58    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   19    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    8.00000    0   22    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   21    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   36    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   35    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   34    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   28    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   51    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   44    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   44    5.00000    8.00000  60.0%     -    0s
     0     2    8.00000    0   23    5.00000    8.00000  60.0%     -    0s
*  223    81              10       6.0000000    7.00000  16.7%  28.1    0s

Cutting planes:
  Cover: 9
  MIR: 36
  StrongCG: 5
  GUB cover: 4
  Inf proof: 17
  Zero half: 2
  RLT: 13
  Relax-and-lift: 1
  BQP: 1

Explored 332 nodes (9550 simplex iterations) in 0.98 seconds (0.50 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/grafo2421.17.sol'

