
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:24:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2245.17.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/grafo2245.17.lp
Reading time = 0.03 seconds
: 3982 rows, 295 columns, 12031 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 3982 rows, 295 columns and 12031 nonzeros
Model fingerprint: 0x8f316cde
Variable types: 14 continuous, 281 integer (281 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 1171 rows and 10 columns
Presolve time: 0.04s
Presolved: 2811 rows, 285 columns, 8605 nonzeros
Variable types: 0 continuous, 285 integer (271 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 1.100000e+01, 214 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   11.00000    0   50    2.00000   11.00000   450%     -    0s
H    0     0                       4.0000000   11.00000   175%     -    0s
H    0     0                       5.0000000   11.00000   120%     -    0s
     0     0   11.00000    0   87    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   83    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   64    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   55    5.00000   11.00000   120%     -    0s
     0     0   10.50000    0   53    5.00000   10.50000   110%     -    0s
H    0     0                       6.0000000   10.50000  75.0%     -    0s
     0     0   10.50000    0   60    6.00000   10.50000  75.0%     -    0s
     0     0   10.50000    0   59    6.00000   10.50000  75.0%     -    0s
     0     0   10.50000    0   54    6.00000   10.50000  75.0%     -    0s
     0     0   10.00000    0   51    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   39    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   32    6.00000   10.00000  66.7%     -    1s
H    0     0                       7.0000000   10.00000  42.9%     -    1s
     0     0   10.00000    0   40    7.00000   10.00000  42.9%     -    1s
     0     0   10.00000    0   52    7.00000   10.00000  42.9%     -    1s
     0     0   10.00000    0   52    7.00000   10.00000  42.9%     -    1s
     0     2   10.00000    0   52    7.00000   10.00000  42.9%     -    1s

Cutting planes:
  Cover: 12
  MIR: 50
  GUB cover: 1
  Inf proof: 24
  Zero half: 4
  RLT: 29

Explored 619 nodes (16719 simplex iterations) in 2.35 seconds (1.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 7 6 5 ... 1

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/grafo2245.17.sol'

