
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:33:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6853.41.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/grafo6853.41.lp
Reading time = 0.13 seconds
: 79300 rows, 2265 columns, 239849 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 79300 rows, 2265 columns and 239849 nonzeros
Model fingerprint: 0xcb34a034
Variable types: 47 continuous, 2218 integer (2218 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 18514 rows and 42 columns
Presolve time: 0.65s
Presolved: 60786 rows, 2223 columns, 184664 nonzeros
Variable types: 0 continuous, 2223 integer (2176 binary)
Root relaxation presolved: 2222 rows, 63008 columns, 186887 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25125    4.9982494e+01   0.000000e+00   7.320499e+04      5s
   50667    4.9972499e+01   0.000000e+00   2.287225e+03     10s
   56548    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   56548    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   56548    5.0000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.000000e+01, 56548 iterations, 10.39 seconds (7.92 work units)
Total elapsed time = 25.03s (DegenMoves)
Total elapsed time = 39.52s (DegenMoves)
Total elapsed time = 43.34s (DegenMoves)

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

     0     0   50.00000    0  603          -   50.00000      -     -   45s
H    0     0                       9.0000000   50.00000   456%     -   48s
     0     0          -    0         9.00000   50.00000   456%     -   50s

Cutting planes:
  Gomory: 36
  Cover: 41
  Clique: 7
  MIR: 186
  StrongCG: 2
  GUB cover: 5
  Zero half: 76
  RLT: 69
  BQP: 6

Explored 1 nodes (97670 simplex iterations) in 50.07 seconds (53.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.000000000000e+01, gap 455.5556%

Wrote result file './lp_solutions/grafo6853.41.sol'

