
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:59:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5298.43.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/grafo5298.43.lp
Reading time = 0.15 seconds
: 95204 rows, 2446 columns, 287695 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 95204 rows, 2446 columns and 287695 nonzeros
Model fingerprint: 0x0a3cdc88
Variable types: 49 continuous, 2397 integer (2397 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 19825 rows and 29 columns
Presolve time: 0.70s
Presolved: 75379 rows, 2417 columns, 228703 nonzeros
Variable types: 0 continuous, 2417 integer (2368 binary)
Root relaxation presolved: 2417 rows, 77796 columns, 231120 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22035    4.4953312e+01   0.000000e+00   2.272496e+04      5s
   43574    4.4941868e+01   0.000000e+00   1.239831e+03     10s
   56979    4.5000000e+01   0.000000e+00   0.000000e+00     13s
   56979    4.5000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 4.500000e+01, 56979 iterations, 12.38 seconds (11.97 work units)
Total elapsed time = 25.61s (DegenMoves)
Total elapsed time = 30.18s (DegenMoves)

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

     0     0   45.00000    0  625          -   45.00000      -     -   31s
H    0     0                      13.0000000   45.00000   246%     -   35s
     0     0          -    0        13.00000   45.00000   246%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 39
  Clique: 30
  MIR: 166
  GUB cover: 3
  Zero half: 74
  RLT: 59
  BQP: 9

Explored 1 nodes (81795 simplex iterations) in 50.07 seconds (49.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 13 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.500000000000e+01, gap 246.1538%

Wrote result file './lp_solutions/grafo5298.43.sol'

