
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:13:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6727.38.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/grafo6727.38.lp
Reading time = 0.11 seconds
: 69069 rows, 1858 columns, 208657 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 69069 rows, 1858 columns and 208657 nonzeros
Model fingerprint: 0xc8a4c503
Variable types: 41 continuous, 1817 integer (1817 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 17531 rows and 13 columns
Presolve time: 0.43s
Presolved: 51538 rows, 1845 columns, 156409 nonzeros
Variable types: 0 continuous, 1845 integer (1804 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1845 rows, 53383 columns, 158254 nonzeros


Root relaxation: objective 4.100000e+01, 2582 iterations, 0.68 seconds (0.79 work units)
Total elapsed time = 6.98s (DegenMoves)

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

     0     0   41.00000    0  549    7.00000   41.00000   486%     -    9s
H    0     0                       9.0000000   41.00000   356%     -    9s
H    0     0                      10.0000000   41.00000   310%     -    9s
     0     0   41.00000    0  871   10.00000   41.00000   310%     -   21s
     0     0   41.00000    0  842   10.00000   41.00000   310%     -   22s
H    0     0                      12.0000000   41.00000   242%     -   43s
     0     0   41.00000    0  556   12.00000   41.00000   242%     -   45s
     0     0   41.00000    0  530   12.00000   41.00000   242%     -   46s
     0     0          -    0        12.00000   41.00000   242%     -   50s

Cutting planes:
  Cover: 41
  Clique: 17
  MIR: 162
  StrongCG: 1
  GUB cover: 3
  Zero half: 73
  RLT: 63
  BQP: 1

Explored 1 nodes (48329 simplex iterations) in 50.07 seconds (47.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 10 9 7 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.100000000000e+01, gap 241.6667%

Wrote result file './lp_solutions/grafo6727.38.sol'

