
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:57:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo851.17.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/grafo851.17.lp
Reading time = 0.02 seconds
: 5339 rows, 307 columns, 16105 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 5339 rows, 307 columns and 16105 nonzeros
Model fingerprint: 0xe59236f1
Variable types: 14 continuous, 293 integer (293 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 1.0000000
Presolve removed 1993 rows and 6 columns
Presolve time: 0.05s
Presolved: 3346 rows, 301 columns, 10186 nonzeros
Variable types: 0 continuous, 301 integer (287 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.400000e+01, 197 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   14.00000    0   78    5.00000   14.00000   180%     -    0s
     0     0   14.00000    0  115    5.00000   14.00000   180%     -    0s
     0     0   14.00000    0  114    5.00000   14.00000   180%     -    0s
     0     0   13.50000    0   89    5.00000   13.50000   170%     -    0s
     0     0   13.50000    0   93    5.00000   13.50000   170%     -    0s
     0     0   13.33333    0   85    5.00000   13.33333   167%     -    0s
     0     0   13.00000    0   86    5.00000   13.00000   160%     -    0s
     0     0   13.00000    0  102    5.00000   13.00000   160%     -    0s
     0     0   13.00000    0   99    5.00000   13.00000   160%     -    0s
H    0     0                       6.0000000   13.00000   117%     -    1s
     0     0   13.00000    0   73    6.00000   13.00000   117%     -    1s
     0     0   13.00000    0   87    6.00000   13.00000   117%     -    1s
     0     0   12.66667    0  105    6.00000   12.66667   111%     -    1s
     0     0   12.66667    0  105    6.00000   12.66667   111%     -    1s
     0     2   12.66667    0   70    6.00000   12.66667   111%     -    1s
H 1773   638                       7.0000000   12.00000  71.4%  35.0    4s
  1776   634   10.50000   17  153    7.00000   12.00000  71.4%  34.9    5s
  2800   855    9.00000   39   97    7.00000   12.00000  71.4%  38.5   11s
  3909   796    8.00000   37  107    7.00000   11.00000  57.1%  40.7   15s
* 4637   450              45       8.0000000   10.00000  25.0%  41.1   16s

Cutting planes:
  MIR: 4
  RLT: 3

Explored 5629 nodes (240227 simplex iterations) in 17.94 seconds (8.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 8 7 7 ... 1

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/grafo851.17.sol'

