
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:53:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo422.17.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/grafo422.17.lp
Reading time = 0.01 seconds
: 2407 rows, 256 columns, 7257 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 2407 rows, 256 columns and 7257 nonzeros
Model fingerprint: 0xade05015
Variable types: 12 continuous, 244 integer (244 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 407 rows and 12 columns
Presolve time: 0.02s
Presolved: 2000 rows, 244 columns, 6126 nonzeros
Variable types: 0 continuous, 244 integer (232 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 8.000000e+00, 259 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    8.00000    0   58    2.00000    8.00000   300%     -    0s
H    0     0                       3.0000000    8.00000   167%     -    0s
     0     0    8.00000    0   87    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   76    3.00000    8.00000   167%     -    0s
     0     0    8.00000    0   68    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
     0     0    8.00000    0   45    5.00000    8.00000  60.0%     -    0s
     0     0    7.50000    0   39    5.00000    7.50000  50.0%     -    0s
     0     0    7.50000    0   37    5.00000    7.50000  50.0%     -    0s
     0     0    7.00000    0   43    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   56    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   63    5.00000    7.00000  40.0%     -    0s
H    0     0                       6.0000000    7.00000  16.7%     -    0s
     0     0    7.00000    0   33    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   30    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   43    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   45    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   43    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   52    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   52    6.00000    7.00000  16.7%     -    0s
     0     2    7.00000    0   19    6.00000    7.00000  16.7%     -    0s

Cutting planes:
  Cover: 10
  MIR: 26
  Inf proof: 18
  Zero half: 5
  RLT: 21

Explored 229 nodes (9123 simplex iterations) in 1.10 seconds (0.47 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/grafo422.17.sol'

