
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:00:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6397.44.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/grafo6397.44.lp
Reading time = 0.27 seconds
: 165427 rows, 2633 columns, 498575 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 165427 rows, 2633 columns and 498575 nonzeros
Model fingerprint: 0x870de98c
Variable types: 51 continuous, 2582 integer (2582 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 53698 rows and 30 columns
Presolve time: 1.35s
Presolved: 111729 rows, 2603 columns, 337902 nonzeros
Variable types: 0 continuous, 2603 integer (2552 binary)
Root relaxation presolved: 2600 rows, 114329 columns, 340505 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18578    5.4980981e+01   0.000000e+00   2.644038e+05      5s
   40023    4.9814476e+01   0.000000e+00   3.323054e+04     10s
   61583    4.9782166e+01   0.000000e+00   9.019083e+03     15s
   79875    5.0000000e+01   0.000000e+00   0.000000e+00     19s
   79875    5.0000000e+01   0.000000e+00   0.000000e+00     19s
   79875    5.0000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.000000e+01, 79875 iterations, 17.87 seconds (13.98 work units)
Total elapsed time = 40.37s (DegenMoves)

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

     0     0   50.00000    0  545          -   50.00000      -     -   45s
H    0     0                       6.0000000   50.00000   733%     -   45s
H    0     0                       7.0000000   50.00000   614%     -   45s
     0     0          -    0         7.00000   50.00000   614%     -   50s

Cutting planes:
  Gomory: 33
  Cover: 43
  Clique: 7
  MIR: 156
  StrongCG: 1
  GUB cover: 8
  Zero half: 61
  RLT: 67
  BQP: 1

Explored 1 nodes (98031 simplex iterations) in 50.03 seconds (47.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 6 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.000000000000e+01, gap 614.2857%

Wrote result file './lp_solutions/grafo6397.44.sol'

