
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:23:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2175.25.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/grafo2175.25.lp
Reading time = 0.02 seconds
: 11377 rows, 641 columns, 34434 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 11377 rows, 641 columns and 34434 nonzeros
Model fingerprint: 0xd6c6d59e
Variable types: 22 continuous, 619 integer (619 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 2231 rows and 24 columns
Presolve time: 0.07s
Presolved: 9146 rows, 617 columns, 27979 nonzeros
Variable types: 0 continuous, 617 integer (595 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 1.300000e+01, 556 iterations, 0.06 seconds (0.04 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   13.00000    0   55    2.00000   13.00000   550%     -    0s
H    0     0                       4.0000000   13.00000   225%     -    0s
H    0     0                       5.0000000   13.00000   160%     -    0s
     0     0   13.00000    0  130    5.00000   13.00000   160%     -    0s
     0     0   13.00000    0  108    5.00000   13.00000   160%     -    0s
H    0     0                       7.0000000   13.00000  85.7%     -    0s
     0     0   13.00000    0   61    7.00000   13.00000  85.7%     -    0s
     0     0   13.00000    0   52    7.00000   13.00000  85.7%     -    0s
     0     0   13.00000    0   93    7.00000   13.00000  85.7%     -    0s
     0     0   13.00000    0   93    7.00000   13.00000  85.7%     -    0s
     0     0   13.00000    0   56    7.00000   13.00000  85.7%     -    1s
     0     0   13.00000    0   57    7.00000   13.00000  85.7%     -    1s
     0     0   13.00000    0   59    7.00000   13.00000  85.7%     -    1s
     0     0   13.00000    0   76    7.00000   13.00000  85.7%     -    1s
     0     0   13.00000    0   64    7.00000   13.00000  85.7%     -    1s
     0     0   13.00000    0   64    7.00000   13.00000  85.7%     -    1s
H    0     0                       9.0000000   13.00000  44.4%     -    2s
     0     2   13.00000    0   55    9.00000   13.00000  44.4%     -    2s
H   29    35                      10.0000000   13.00000  30.0%  54.8    2s
   759   303   11.00000   13   54   10.00000   13.00000  30.0%  53.6    5s
  3836   610     cutoff   12        10.00000   11.66667  16.7%  46.8   10s

Cutting planes:
  Cover: 27
  MIR: 100
  StrongCG: 2
  GUB cover: 2
  Inf proof: 33
  Zero half: 9
  RLT: 28

Explored 5794 nodes (318373 simplex iterations) in 13.19 seconds (16.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 10 9 7 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0000%

Wrote result file './lp_solutions/grafo2175.25.sol'

