
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:19:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo644.14.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/grafo644.14.lp
Reading time = 0.01 seconds
: 2885 rows, 265 columns, 8733 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 2885 rows, 265 columns and 8733 nonzeros
Model fingerprint: 0x27207834
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 859 rows and 18 columns
Presolve time: 0.03s
Presolved: 2026 rows, 247 columns, 6294 nonzeros
Variable types: 0 continuous, 247 integer (232 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.000000e+01, 266 iterations, 0.03 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   74    3.00000   10.00000   233%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
     0     0   10.00000    0  133    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   72    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0  101    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   51    4.00000   10.00000   150%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0   10.00000    0   47    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   50    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   57    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   77    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   54    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0  100    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   95    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   66    5.00000   10.00000   100%     -    1s
     0     0   10.00000    0   66    5.00000   10.00000   100%     -    1s
     0     2   10.00000    0   47    5.00000   10.00000   100%     -    1s
H  166   166                       6.0000000   10.00000  66.7%   102    2s
H  411   241                       7.0000000   10.00000  42.9%  92.3    2s
   776   211     cutoff   12         7.00000   10.00000  42.9%  77.3    5s

Cutting planes:
  Gomory: 1
  Cover: 6
  MIR: 82
  StrongCG: 3
  GUB cover: 2
  Inf proof: 11
  Zero half: 6
  RLT: 38

Explored 1547 nodes (105918 simplex iterations) in 6.67 seconds (4.15 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/grafo644.14.sol'

