
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:36:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2289.18.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/grafo2289.18.lp
Reading time = 0.01 seconds
: 6067 rows, 425 columns, 18438 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 6067 rows, 425 columns and 18438 nonzeros
Model fingerprint: 0x33e0d1c1
Variable types: 19 continuous, 406 integer (406 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]
Presolve removed 1414 rows and 2 columns
Presolve time: 0.04s
Presolved: 4653 rows, 423 columns, 14299 nonzeros
Variable types: 0 continuous, 423 integer (404 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.300000e+01, 241 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   13.00000    0   51    6.00000   13.00000   117%     -    0s
     0     0   13.00000    0  102    6.00000   13.00000   117%     -    0s
     0     0   13.00000    0   89    6.00000   13.00000   117%     -    0s
     0     0   13.00000    0   96    6.00000   13.00000   117%     -    0s
     0     0   13.00000    0   79    6.00000   13.00000   117%     -    0s
H    0     0                       7.0000000   13.00000  85.7%     -    0s
     0     0   13.00000    0   81    7.00000   13.00000  85.7%     -    0s
     0     0   13.00000    0   72    7.00000   13.00000  85.7%     -    0s
     0     0   12.83333    0   70    7.00000   12.83333  83.3%     -    0s
     0     0   12.66667    0   38    7.00000   12.66667  81.0%     -    0s
     0     0   12.66667    0   40    7.00000   12.66667  81.0%     -    0s
     0     0   12.50000    0   59    7.00000   12.50000  78.6%     -    0s
     0     0   12.50000    0   73    7.00000   12.50000  78.6%     -    0s
     0     0   12.50000    0   44    7.00000   12.50000  78.6%     -    0s
     0     2   12.50000    0   37    7.00000   12.50000  78.6%     -    1s
H  679   378                       8.0000000   12.50000  56.2%  55.5    2s
H  912   408                       9.0000000   12.50000  38.9%  58.4    2s
  1876   721   11.66667   12  139    9.00000   12.50000  38.9%  64.8    5s
  3524   771   10.00000   36   92    9.00000   12.50000  38.9%  63.5   10s

Cutting planes:
  MIR: 3
  Inf proof: 4
  RLT: 2

Explored 6115 nodes (366261 simplex iterations) in 13.23 seconds (11.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 9 9 9 ... 6

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/grafo2289.18.sol'

