
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:18:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6634.47.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/grafo6634.47.lp
Reading time = 0.28 seconds
: 82586 rows, 2392 columns, 249553 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 82586 rows, 2392 columns and 249553 nonzeros
Model fingerprint: 0xda83f248
Variable types: 44 continuous, 2348 integer (2348 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 15931 rows and 90 columns
Presolve time: 0.63s
Presolved: 66655 rows, 2302 columns, 202008 nonzeros
Variable types: 0 continuous, 2302 integer (2258 binary)
Root relaxation presolved: 2298 rows, 68953 columns, 204310 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18770    3.6735152e+01   0.000000e+00   6.423988e+03      5s
   34211    3.7000000e+01   0.000000e+00   0.000000e+00      9s
   34211    3.7000000e+01   0.000000e+00   0.000000e+00      9s
   34211    3.7000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.700000e+01, 34211 iterations, 8.18 seconds (5.31 work units)
Total elapsed time = 17.18s (DegenMoves)
Total elapsed time = 38.68s (DegenMoves)

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

     0     0   37.00000    0  440          -   37.00000      -     -   41s
H    0     0                      14.0000000   37.00000   164%     -   44s
     0     0          -    0        14.00000   37.00000   164%     -   50s

Cutting planes:
  Gomory: 33
  Cover: 48
  Clique: 13
  MIR: 110
  StrongCG: 3
  GUB cover: 3
  Zero half: 35
  RLT: 45
  BQP: 3

Explored 1 nodes (68264 simplex iterations) in 50.13 seconds (46.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 14 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.700000000000e+01, gap 164.2857%

Wrote result file './lp_solutions/grafo6634.47.sol'

