
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:58:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo880.17.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/grafo880.17.lp
Reading time = 0.01 seconds
: 2626 rows, 283 columns, 7960 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 2626 rows, 283 columns and 7960 nonzeros
Model fingerprint: 0x984d2b58
Variable types: 14 continuous, 269 integer (269 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 340 rows and 13 columns
Presolve time: 0.03s
Presolved: 2286 rows, 270 columns, 7030 nonzeros
Variable types: 0 continuous, 270 integer (256 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 8.000000e+00, 55 iterations, 0.01 seconds (0.00 work units)

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

     0     0    8.00000    0   25    3.00000    8.00000   167%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
H    0     0                       6.0000000    8.00000  33.3%     -    0s
     0     0    8.00000    0   56    6.00000    8.00000  33.3%     -    0s
     0     0    7.66667    0   28    6.00000    7.66667  27.8%     -    0s
     0     0    7.50000    0   32    6.00000    7.50000  25.0%     -    0s
     0     0    7.00000    0   15    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   33    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   26    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   25    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   39    6.00000    7.00000  16.7%     -    0s
     0     0    6.00000    0   29    6.00000    6.00000  0.00%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 1
  MIR: 9
  Inf proof: 1
  Zero half: 2
  RLT: 6

Explored 1 nodes (1017 simplex iterations) in 0.34 seconds (0.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 4 ... 2

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo880.17.sol'

