
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 16:03:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1954.24.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/grafo1954.24.lp
Reading time = 0.01 seconds
: 6955 rows, 583 columns, 21139 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 6955 rows, 583 columns and 21139 nonzeros
Model fingerprint: 0x9522ee53
Variable types: 19 continuous, 564 integer (564 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 6.0000000
Presolve removed 656 rows and 52 columns
Presolve time: 0.05s
Presolved: 6299 rows, 531 columns, 19218 nonzeros
Variable types: 0 continuous, 531 integer (512 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.400000e+01, 127 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   14.00000    0   68    8.00000   14.00000  75.0%     -    0s
     0     0   14.00000    0  122    8.00000   14.00000  75.0%     -    0s
H    0     0                       9.0000000   14.00000  55.6%     -    0s
     0     0   14.00000    0  124    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   62    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   59    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   91    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   93    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   82    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   85    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   71    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   64    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   88    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   76    9.00000   14.00000  55.6%     -    1s
     0     2   14.00000    0   76    9.00000   14.00000  55.6%     -    1s
H  383   178                      10.0000000   14.00000  40.0%  56.0    2s
  1026   365   12.33333   13  101   10.00000   13.98200  39.8%  73.8    5s

Cutting planes:
  Gomory: 1
  Cover: 30
  Clique: 9
  MIR: 82
  StrongCG: 3
  GUB cover: 1
  Inf proof: 78
  Zero half: 8
  RLT: 41
  Relax-and-lift: 1
  BQP: 4
  PSD: 3

Explored 2876 nodes (167768 simplex iterations) in 7.73 seconds (8.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 8 6 

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0000%

Wrote result file './lp_solutions/grafo1954.24.sol'

