
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 19:06:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2647.17.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/grafo2647.17.lp
Reading time = 0.01 seconds
: 6179 rows, 394 columns, 18742 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 6179 rows, 394 columns and 18742 nonzeros
Model fingerprint: 0xa726dc8c
Variable types: 17 continuous, 377 integer (377 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 3.0000000
Presolve removed 3000 rows and 42 columns
Presolve time: 0.04s
Presolved: 3179 rows, 352 columns, 9895 nonzeros
Variable types: 0 continuous, 352 integer (335 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.100000e+01, 177 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   11.00000    0   70    5.00000   11.00000   120%     -    0s
H    0     0                       6.0000000   11.00000  83.3%     -    0s
     0     0   11.00000    0   74    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   89    6.00000   11.00000  83.3%     -    0s
     0     0   10.50000    0   62    6.00000   10.50000  75.0%     -    0s
H    0     0                       7.0000000   10.00000  42.9%     -    0s
     0     0   10.00000    0   71    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   77    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   37    7.00000   10.00000  42.9%     -    0s
H    0     0                       9.0000000   10.00000  11.1%     -    0s
     0     0   10.00000    0   38    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   47    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   50    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   54    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   52    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   47    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   61    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   47    9.00000   10.00000  11.1%     -    0s
     0     0   10.00000    0   47    9.00000   10.00000  11.1%     -    0s
     0     2   10.00000    0   42    9.00000   10.00000  11.1%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 47
  MIR: 52
  StrongCG: 8
  GUB cover: 3
  Inf proof: 90
  Zero half: 7
  RLT: 25
  Relax-and-lift: 1

Explored 1743 nodes (100357 simplex iterations) in 2.92 seconds (3.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 7 6 ... 3

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/grafo2647.17.sol'

