
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:37:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo315.14.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/grafo315.14.lp
Reading time = 0.01 seconds
: 2651 rows, 265 columns, 8031 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 2651 rows, 265 columns and 8031 nonzeros
Model fingerprint: 0xcf67386b
Variable types: 15 continuous, 250 integer (250 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 706 rows and 18 columns
Presolve time: 0.04s
Presolved: 1945 rows, 247 columns, 6051 nonzeros
Variable types: 0 continuous, 247 integer (232 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 1.000000e+01, 192 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   10.00000    0   53    1.00000   10.00000   900%     -    0s
H    0     0                       3.0000000   10.00000   233%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
     0     0   10.00000    0   91    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   91    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   79    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   78    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   74    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   71    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   85    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   91    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   65    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   65    4.00000   10.00000   150%     -    0s
     0     2   10.00000    0   65    4.00000   10.00000   150%     -    1s
H  129   127                       5.0000000   10.00000   100%  98.2    1s
H  345   255                       6.0000000   10.00000  66.7%  97.8    2s
H  519   260                       7.0000000   10.00000  42.9%  97.4    4s
   720   314 infeasible   21         7.00000    9.50000  35.7%  89.0    5s
  2776   249 infeasible   18         7.00000    8.00000  14.3%  96.2   10s
  3894    49 infeasible   15         7.00000    8.00000  14.3%   118   15s

Cutting planes:
  Gomory: 4
  Cover: 120
  MIR: 77
  StrongCG: 4
  GUB cover: 2
  Inf proof: 45
  Zero half: 2
  RLT: 29

Explored 4255 nodes (532304 simplex iterations) in 16.61 seconds (12.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 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/grafo315.14.sol'

