
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 16:53:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo518.15.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/grafo518.15.lp
Reading time = 0.02 seconds
: 7659 rows, 286 columns, 23079 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 7659 rows, 286 columns and 23079 nonzeros
Model fingerprint: 0x6bb83825
Variable types: 14 continuous, 272 integer (272 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 3493 rows and 9 columns
Presolve time: 0.05s
Presolved: 4166 rows, 277 columns, 12676 nonzeros
Variable types: 0 continuous, 277 integer (263 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.200000e+01, 215 iterations, 0.02 seconds (0.02 work units)

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

     0     0   12.00000    0   46    3.00000   12.00000   300%     -    0s
H    0     0                       4.0000000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0   88    5.00000   12.00000   140%     -    0s
     0     0   11.66667    0  101    5.00000   11.66667   133%     -    0s
     0     0   11.50000    0  109    5.00000   11.50000   130%     -    0s
H    0     0                       6.0000000   11.50000  91.7%     -    0s
     0     0   11.50000    0   85    6.00000   11.50000  91.7%     -    0s
     0     0   11.50000    0   93    6.00000   11.50000  91.7%     -    0s
     0     0   11.00000    0   60    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   72    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   98    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   84    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0  105    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   66    6.00000   11.00000  83.3%     -    1s
     0     2   11.00000    0   66    6.00000   11.00000  83.3%     -    1s
  1450   944   11.00000   15  141    6.00000   11.00000  83.3%  49.0    5s
H 2457   975                       7.0000000   11.00000  57.1%  55.4    8s
  3381   900 infeasible   29         7.00000   10.00000  42.9%  53.2   10s
  6970   831    8.00000   36  112    7.00000    8.50000  21.4%  52.7   15s

Cutting planes:
  Clique: 1
  MIR: 2
  Zero half: 1
  RLT: 2

Explored 9039 nodes (452994 simplex iterations) in 16.63 seconds (12.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 7 6 6 ... 1

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo518.15.sol'

