
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:46:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3627.37.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/grafo3627.37.lp
Reading time = 0.07 seconds
: 22441 rows, 1069 columns, 67744 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 22441 rows, 1069 columns and 67744 nonzeros
Model fingerprint: 0xea2d0e1c
Variable types: 25 continuous, 1044 integer (1044 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 3.0000000
Presolve removed 1421 rows and 15 columns
Presolve time: 0.19s
Presolved: 21020 rows, 1054 columns, 63622 nonzeros
Variable types: 0 continuous, 1054 integer (1029 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.500000e+01, 1113 iterations, 0.23 seconds (0.15 work units)

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

     0     0   15.00000    0  152    6.00000   15.00000   150%     -    1s
H    0     0                       7.0000000   15.00000   114%     -    1s
     0     0   15.00000    0   96    7.00000   15.00000   114%     -    2s
     0     0   15.00000    0   97    7.00000   15.00000   114%     -    2s
     0     0   15.00000    0   72    7.00000   15.00000   114%     -    2s
H    0     0                       8.0000000   15.00000  87.5%     -    2s
     0     0   15.00000    0   71    8.00000   15.00000  87.5%     -    3s
     0     0   15.00000    0   74    8.00000   15.00000  87.5%     -    3s
H    0     0                       9.0000000   15.00000  66.7%     -    3s
     0     0   15.00000    0   73    9.00000   15.00000  66.7%     -    3s
     0     0   14.66667    0   75    9.00000   14.66667  63.0%     -    4s
     0     0   14.66667    0   75    9.00000   14.66667  63.0%     -    4s
     0     0   14.66667    0   84    9.00000   14.66667  63.0%     -    4s
     0     0   14.66667    0   85    9.00000   14.66667  63.0%     -    4s
     0     0   14.66667    0   65    9.00000   14.66667  63.0%     -    5s
     0     0   14.66667    0   86    9.00000   14.66667  63.0%     -    5s
     0     0   14.66667    0   84    9.00000   14.66667  63.0%     -    5s
     0     0   14.66667    0   81    9.00000   14.66667  63.0%     -    5s
H    0     0                      10.0000000   14.66667  46.7%     -    6s
     0     2   14.66667    0   78   10.00000   14.66667  46.7%     -    6s
H  253   181                      11.0000000   14.66667  33.3%  65.0    9s
   258   168     cutoff   33        11.00000   14.66667  33.3%  66.2   10s

Cutting planes:
  Cover: 15
  Clique: 1
  MIR: 184
  StrongCG: 6
  Inf proof: 2
  Zero half: 10
  RLT: 43
  BQP: 1

Explored 862 nodes (44273 simplex iterations) in 12.65 seconds (7.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 11 10 9 ... 3

Optimal solution found (tolerance 1.00e-04)
Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0000%

Wrote result file './lp_solutions/grafo3627.37.sol'

