
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:27:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7426.47.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/grafo7426.47.lp
Reading time = 0.34 seconds
: 168728 rows, 2656 columns, 508331 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 168728 rows, 2656 columns and 508331 nonzeros
Model fingerprint: 0xa8ba650a
Variable types: 49 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]
Presolve removed 53715 rows and 25 columns
Presolve time: 1.48s
Presolved: 115013 rows, 2631 columns, 347554 nonzeros
Variable types: 0 continuous, 2631 integer (2582 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2628 rows, 117641 columns, 350185 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15873    4.6955083e+01   0.000000e+00   7.185372e+04      5s
   33221    4.4926831e+01   0.000000e+00   9.358275e+03     10s
   47921    4.4921929e+01   0.000000e+00   5.437417e+02     15s
   55532    4.5000000e+01   0.000000e+00   0.000000e+00     18s
   55532    4.5000000e+01   0.000000e+00   0.000000e+00     18s
   55532    4.5000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 4.500000e+01, 55532 iterations, 15.95 seconds (11.19 work units)
Total elapsed time = 41.26s (DegenMoves)

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

     0     0   45.00000    0  717   10.00000   45.00000   350%     -   50s

Explored 1 nodes (72308 simplex iterations) in 50.05 seconds (45.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo7426.47.sol'

