
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:02:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2679.17.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/grafo2679.17.lp
Reading time = 0.01 seconds
: 4268 rows, 316 columns, 12900 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 4268 rows, 316 columns and 12900 nonzeros
Model fingerprint: 0x33ad5c11
Variable types: 15 continuous, 301 integer (301 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 1261 rows and 13 columns
Presolve time: 0.04s
Presolved: 3007 rows, 303 columns, 9225 nonzeros
Variable types: 0 continuous, 303 integer (288 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.200000e+01, 183 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   55    3.00000   12.00000   300%     -    0s
H    0     0                       4.0000000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0  109    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   91    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   44    5.00000   12.00000   140%     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
H    0     0                       8.0000000   12.00000  50.0%     -    0s
     0     0   12.00000    0   44    8.00000   12.00000  50.0%     -    0s
     0     0   11.50000    0   44    8.00000   11.50000  43.8%     -    0s
     0     0   11.50000    0   42    8.00000   11.50000  43.8%     -    0s
     0     0   11.00000    0   45    8.00000   11.00000  37.5%     -    0s
     0     0   11.00000    0   46    8.00000   11.00000  37.5%     -    0s
     0     0   11.00000    0   36    8.00000   11.00000  37.5%     -    0s
     0     0   11.00000    0   54    8.00000   11.00000  37.5%     -    0s
     0     0   10.50000    0   45    8.00000   10.50000  31.2%     -    1s
     0     0   10.50000    0   76    8.00000   10.50000  31.2%     -    1s
     0     0   10.50000    0   61    8.00000   10.50000  31.2%     -    1s
     0     0   10.50000    0   61    8.00000   10.50000  31.2%     -    1s
     0     2   10.50000    0   61    8.00000   10.50000  31.2%     -    1s

Cutting planes:
  Gomory: 2
  Cover: 29
  MIR: 89
  StrongCG: 3
  Inf proof: 22
  Zero half: 9
  RLT: 33
  Relax-and-lift: 2

Explored 1035 nodes (42428 simplex iterations) in 3.55 seconds (1.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 5 ... 3

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/grafo2679.17.sol'

