
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:55:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo816.17.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/grafo816.17.lp
Reading time = 0.01 seconds
: 2765 rows, 289 columns, 8362 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 2765 rows, 289 columns and 8362 nonzeros
Model fingerprint: 0x0efaa1eb
Variable types: 14 continuous, 275 integer (275 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 466 rows and 16 columns
Presolve time: 0.03s
Presolved: 2299 rows, 273 columns, 7075 nonzeros
Variable types: 0 continuous, 273 integer (259 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 125 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    9.00000    0   52    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   89    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   89    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   84    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   82    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   47    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   45    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   52    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   51    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   66    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   67    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   54    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   26    5.00000    9.00000  80.0%     -    0s
     0     2    9.00000    0   26    5.00000    9.00000  80.0%     -    0s
H  256   154                       6.0000000    9.00000  50.0%  48.8    1s
  2193   385     cutoff   18         6.00000    8.00000  33.3%  56.4    5s
  4246     5    7.00000   13   45    6.00000    7.00000  16.7%  70.5   10s

Cutting planes:
  Gomory: 3
  Cover: 133
  MIR: 49
  StrongCG: 5
  GUB cover: 4
  Inf proof: 81
  Zero half: 11
  RLT: 23

Explored 4367 nodes (314139 simplex iterations) in 10.18 seconds (7.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 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/grafo816.17.sol'

