
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:36:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2413.16.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/grafo2413.16.lp
Reading time = 0.02 seconds
: 4377 rows, 390 columns, 13354 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 4377 rows, 390 columns and 13354 nonzeros
Model fingerprint: 0xc95003a5
Variable types: 20 continuous, 370 integer (370 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 -0.0000000
Presolve removed 652 rows and 21 columns
Presolve time: 0.05s
Presolved: 3725 rows, 369 columns, 11557 nonzeros
Variable types: 0 continuous, 369 integer (349 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 1.100000e+01, 215 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   37    1.00000   11.00000  1000%     -    0s
H    0     0                       7.0000000   11.00000  57.1%     -    0s
     0     0   11.00000    0   57    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   53    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   49    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   51    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   52    7.00000   11.00000  57.1%     -    0s
     0     0   10.50000    0   58    7.00000   10.50000  50.0%     -    0s
     0     0   10.00000    0   59    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   31    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   29    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   36    7.00000   10.00000  42.9%     -    1s
     0     0   10.00000    0   36    7.00000   10.00000  42.9%     -    1s
H    0     0                       8.0000000   10.00000  25.0%     -    1s
     0     2   10.00000    0   28    8.00000   10.00000  25.0%     -    1s
H   73    56                       9.0000000   10.00000  11.1%  37.1    1s

Cutting planes:
  Cover: 5
  MIR: 21
  Inf proof: 4
  Zero half: 3
  RLT: 6

Explored 164 nodes (6399 simplex iterations) in 1.77 seconds (0.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 7 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2413.16.sol'

