
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:59:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6314.44.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/grafo6314.44.lp
Reading time = 0.29 seconds
: 128910 rows, 2658 columns, 389047 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 128910 rows, 2658 columns and 389047 nonzeros
Model fingerprint: 0x85eb518d
Variable types: 51 continuous, 2607 integer (2607 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 2.0000000
Presolve removed 33687 rows and 24 columns
Presolve time: 1.25s
Presolved: 95223 rows, 2634 columns, 288468 nonzeros
Variable types: 0 continuous, 2634 integer (2583 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2634 rows, 97857 columns, 291102 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17039    5.2932335e+01   0.000000e+00   1.366950e+04      5s
   34259    5.2910163e+01   0.000000e+00   1.620946e+04     10s
   47571    5.3000000e+01   0.000000e+00   0.000000e+00     15s
   47571    5.3000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.300000e+01, 47571 iterations, 13.18 seconds (8.06 work units)
Total elapsed time = 38.93s (DegenMoves)
Total elapsed time = 43.66s (DegenMoves)

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

     0     0   53.00000    0  730   13.00000   53.00000   308%     -   44s
H    0     0                      15.0000000   53.00000   253%     -   44s

Cutting planes:
  Cover: 40
  Clique: 17
  MIR: 182
  StrongCG: 2
  GUB cover: 1

Explored 1 nodes (66609 simplex iterations) in 50.05 seconds (39.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 13 2 

Time limit reached
Best objective 1.500000000000e+01, best bound 5.300000000000e+01, gap 253.3333%

Wrote result file './lp_solutions/grafo6314.44.sol'

