
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 15:03:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2471.14.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/grafo2471.14.lp
Reading time = 0.01 seconds
: 7244 rows, 272 columns, 21834 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 7244 rows, 272 columns and 21834 nonzeros
Model fingerprint: 0x654e77f8
Variable types: 14 continuous, 258 integer (258 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 2.0000000
Presolve removed 3329 rows and 3 columns
Presolve time: 0.04s
Presolved: 3915 rows, 269 columns, 11899 nonzeros
Variable types: 0 continuous, 269 integer (255 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.200000e+01, 205 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   48    5.00000   12.00000   140%     -    0s
H    0     0                       6.0000000   12.00000   100%     -    0s
     0     0   12.00000    0   66    6.00000   12.00000   100%     -    0s
     0     0   12.00000    0   58    6.00000   12.00000   100%     -    0s
     0     0   11.66667    0   62    6.00000   11.66667  94.4%     -    0s
     0     0   11.50000    0   77    6.00000   11.50000  91.7%     -    0s
     0     0   11.00000    0   75    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0  106    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   94    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   90    6.00000   11.00000  83.3%     -    0s
H    0     0                       7.0000000   11.00000  57.1%     -    0s
     0     0   11.00000    0   89    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   90    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   63    7.00000   11.00000  57.1%     -    1s
     0     2   11.00000    0   41    7.00000   11.00000  57.1%     -    1s
  2142  1031 infeasible   19         7.00000   11.00000  57.1%  41.8    5s
  5739  1948 infeasible   19         7.00000    9.50000  35.7%  48.7   10s
 11187  3824    8.00000   42   83    7.00000    9.00000  28.6%  52.0   15s
 15241  4728    9.00000   34   50    7.00000    9.00000  28.6%  53.2   20s
 20122  3837    8.66667   44   60    7.00000    9.00000  28.6%  53.9   25s

Cutting planes:
  Inf proof: 1

Explored 24578 nodes (1350522 simplex iterations) in 28.25 seconds (24.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 7 7 7 ... 2

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/grafo2471.14.sol'

