
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:44:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo738.12.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/grafo738.12.lp
Reading time = 0.01 seconds
: 2642 rows, 231 columns, 7996 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 2642 rows, 231 columns and 7996 nonzeros
Model fingerprint: 0x2a8a581c
Variable types: 14 continuous, 217 integer (217 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 -0.0000000
Presolve removed 980 rows and 12 columns
Presolve time: 0.03s
Presolved: 1662 rows, 219 columns, 5164 nonzeros
Variable types: 0 continuous, 219 integer (205 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.200000e+01, 169 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   12.00000    0   97    3.00000   12.00000   300%     -    0s
     0     0   12.00000    0  124    3.00000   12.00000   300%     -    0s
H    0     0                       4.0000000   12.00000   200%     -    0s
     0     0   12.00000    0  123    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   94    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   94    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   99    4.00000   12.00000   200%     -    0s
     0     0   11.66667    0  113    4.00000   11.66667   192%     -    0s
     0     0   11.66667    0   89    4.00000   11.66667   192%     -    0s
     0     0   11.66667    0  106    4.00000   11.66667   192%     -    0s
H    0     0                       5.0000000   11.66667   133%     -    0s
     0     0   11.66667    0  107    5.00000   11.66667   133%     -    0s
     0     0   11.66667    0  106    5.00000   11.66667   133%     -    0s
H    0     0                       6.0000000   11.66667  94.4%     -    0s
     0     2   11.66667    0   93    6.00000   11.66667  94.4%     -    0s
H 1402   561                       7.0000000   11.16667  59.5%  37.1    2s
  3699   569     cutoff   16         7.00000    9.50000  35.7%  31.0    5s
  6640   165     cutoff   27         7.00000    8.00000  14.3%  54.3   10s
  7996     4     cutoff   22         7.00000    8.00000  14.3%  67.0   15s

Cutting planes:
  Gomory: 1
  Cover: 71
  MIR: 91
  StrongCG: 6
  GUB cover: 3
  Inf proof: 75
  Zero half: 18
  RLT: 48

Explored 8103 nodes (551743 simplex iterations) in 15.18 seconds (11.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 7 6 5 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo738.12.sol'

