
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:47:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6438.45.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/grafo6438.45.lp
Reading time = 0.15 seconds
: 99615 rows, 2710 columns, 301272 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 99615 rows, 2710 columns and 301272 nonzeros
Model fingerprint: 0xdd8b670b
Variable types: 53 continuous, 2657 integer (2657 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 13985 rows and 2 columns
Presolve time: 0.56s
Presolved: 85630 rows, 2708 columns, 259722 nonzeros
Variable types: 0 continuous, 2708 integer (2655 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2672 rows, 88302 columns, 262430 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20752    4.4682462e+01   0.000000e+00   1.482695e+04      5s
   41571    4.4661060e+01   0.000000e+00   2.841728e+04     10s
   61206    4.4655543e+01   0.000000e+00   1.178485e+03     15s
   68250    4.5000000e+01   0.000000e+00   0.000000e+00     17s
   68250    4.5000000e+01   0.000000e+00   0.000000e+00     17s
   68250    4.5000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.500000e+01, 68250 iterations, 16.09 seconds (14.17 work units)
Total elapsed time = 34.13s (DegenMoves)
Total elapsed time = 48.15s (DegenMoves)

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

     0     0   45.00000    0  758    5.00000   45.00000   800%     -   50s

Explored 1 nodes (98261 simplex iterations) in 50.03 seconds (58.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 4.500000000000e+01, gap 800.0000%

Wrote result file './lp_solutions/grafo6438.45.sol'

