
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:54:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5982.44.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/grafo5982.44.lp
Reading time = 0.30 seconds
: 192887 rows, 2726 columns, 581110 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 192887 rows, 2726 columns and 581110 nonzeros
Model fingerprint: 0x08b8d7c6
Variable types: 52 continuous, 2674 integer (2674 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 66967 rows and 19 columns
Presolve time: 1.36s
Presolved: 125920 rows, 2707 columns, 380597 nonzeros
Variable types: 0 continuous, 2707 integer (2655 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2701 rows, 128621 columns, 383304 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18684    5.2756892e+01   0.000000e+00   1.189082e+05      5s
   39759    5.2668751e+01   0.000000e+00   1.110130e+04     10s
   59739    5.2653496e+01   0.000000e+00   1.154234e+03     15s
   69676    5.3000000e+01   0.000000e+00   0.000000e+00     17s
   69676    5.3000000e+01   0.000000e+00   0.000000e+00     18s
   69676    5.3000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.300000e+01, 69676 iterations, 15.91 seconds (12.84 work units)
Total elapsed time = 47.48s (DegenMoves)

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

     0     0   53.00000    0  987    8.00000   53.00000   562%     -   50s

Explored 1 nodes (87172 simplex iterations) in 50.05 seconds (49.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.300000000000e+01, gap 562.5000%

Wrote result file './lp_solutions/grafo5982.44.sol'

