
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 02:27:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2721.27.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/grafo2721.27.lp
Reading time = 0.02 seconds
: 13735 rows, 615 columns, 41445 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 13735 rows, 615 columns and 41445 nonzeros
Model fingerprint: 0xb78c5a23
Variable types: 15 continuous, 600 integer (600 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 6517 rows and 76 columns
Presolve time: 0.07s
Presolved: 7218 rows, 539 columns, 21913 nonzeros
Variable types: 0 continuous, 539 integer (524 binary)

Root relaxation: objective 1.000000e+01, 133 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   10.00000    0   55          -   10.00000      -     -    0s
H    0     0                       7.0000000   10.00000  42.9%     -    0s
     0     0   10.00000    0   57    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   59    7.00000   10.00000  42.9%     -    0s
     0     0    9.66667    0   42    7.00000    9.66667  38.1%     -    0s
     0     0    9.00000    0   47    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   45    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   49    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   63    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   49    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   59    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   59    7.00000    9.00000  28.6%     -    0s
     0     2    9.00000    0   25    7.00000    9.00000  28.6%     -    1s
H   80    70                       8.0000000    9.00000  12.5%  47.7    1s
  2117     8 infeasible   20         8.00000    9.00000  12.5%  61.0    5s

Cutting planes:
  Gomory: 1
  Cover: 47
  Clique: 3
  MIR: 35
  StrongCG: 6
  Inf proof: 120
  Zero half: 6
  RLT: 21
  BQP: 1

Explored 2203 nodes (136923 simplex iterations) in 5.26 seconds (5.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 7 

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/grafo2721.27.sol'

