
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:55:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2420.16.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/grafo2420.16.lp
Reading time = 0.01 seconds
: 3499 rows, 268 columns, 10568 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 3499 rows, 268 columns and 10568 nonzeros
Model fingerprint: 0x886550af
Variable types: 12 continuous, 256 integer (256 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 1331 rows and 5 columns
Presolve time: 0.02s
Presolved: 2168 rows, 263 columns, 6670 nonzeros
Variable types: 0 continuous, 263 integer (251 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.100000e+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   11.00000    0   55    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0  103    4.00000   11.00000   175%     -    0s
     0     0   10.00000    0   80    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   85    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     0   10.00000    0   66    4.00000   10.00000   150%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0   10.00000    0   66    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   75    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   80    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   68    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   68    5.00000   10.00000   100%     -    0s
     0     2   10.00000    0   68    5.00000   10.00000   100%     -    0s
H  434   283                       7.0000000   10.00000  42.9%  42.8    1s
  3385   903    8.00000   25   94    7.00000   10.00000  42.9%  45.7    5s
  9716    10    8.00000   46   41    7.00000    8.00000  14.3%  53.1   10s

Cutting planes:
  Cover: 3
  MIR: 8
  Inf proof: 4
  Zero half: 2
  RLT: 5

Explored 9955 nodes (530521 simplex iterations) in 10.20 seconds (8.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 7 7 7 ... 4

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/grafo2420.16.sol'

