
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 15:49:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2758.17.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/grafo2758.17.lp
Reading time = 0.01 seconds
: 3817 rows, 326 columns, 11561 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 3817 rows, 326 columns and 11561 nonzeros
Model fingerprint: 0xfc02c4f7
Variable types: 15 continuous, 311 integer (311 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 1117 rows and 17 columns
Presolve time: 0.03s
Presolved: 2700 rows, 309 columns, 8368 nonzeros
Variable types: 0 continuous, 309 integer (294 binary)

Root relaxation: objective 1.000000e+01, 134 iterations, 0.01 seconds (0.01 work units)

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

     0     0   10.00000    0   70    2.00000   10.00000   400%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0   10.00000    0  101    5.00000   10.00000   100%     -    0s
H    0     0                       6.0000000   10.00000  66.7%     -    0s
     0     0   10.00000    0   98    6.00000   10.00000  66.7%     -    0s
     0     0    9.00000    0   69    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   77    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0  106    6.00000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    9.00000    0   83    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   83    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   80    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0  106    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0  106    7.00000    9.00000  28.6%     -    0s
     0     2    9.00000    0   76    7.00000    9.00000  28.6%     -    0s
H  412   254                       8.0000000    9.00000  12.5%  66.3    1s

Cutting planes:
  Gomory: 2
  Cover: 51
  MIR: 20
  StrongCG: 3
  GUB cover: 3
  Inf proof: 102
  Zero half: 7
  RLT: 19
  Relax-and-lift: 1

Explored 3178 nodes (165961 simplex iterations) in 3.66 seconds (4.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 8 7 6 ... 2

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2758.17.sol'

