
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:00:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6933.47.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/grafo6933.47.lp
Reading time = 0.30 seconds
: 109584 rows, 2871 columns, 331208 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 109584 rows, 2871 columns and 331208 nonzeros
Model fingerprint: 0x10be7c13
Variable types: 53 continuous, 2818 integer (2818 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 18999 rows and 2 columns
Presolve time: 0.79s
Presolved: 90585 rows, 2869 columns, 274698 nonzeros
Variable types: 0 continuous, 2869 integer (2816 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2842 rows, 93427 columns, 277567 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16654    5.7983198e+01   0.000000e+00   1.194860e+05      5s
   33475    5.7956180e+01   0.000000e+00   3.270288e+04     10s
   46556    5.7947918e+01   0.000000e+00   6.009823e+03     15s
   59470    5.7943586e+01   0.000000e+00   7.774329e+03     20s
   74093    5.7940803e+01   0.000000e+00   3.567861e+03     25s
   88542    5.7940086e+01   0.000000e+00   3.422571e+02     30s
   94533    5.8000000e+01   0.000000e+00   0.000000e+00     33s
   94533    5.8000000e+01   0.000000e+00   0.000000e+00     33s
   94533    5.8000000e+01   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 5.800000e+01, 94533 iterations, 32.34 seconds (22.08 work units)

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

     0     0   58.00000    0 1921    8.00000   58.00000   625%     -   50s

Explored 1 nodes (103068 simplex iterations) in 50.03 seconds (36.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.800000000000e+01, gap 625.0000%

Wrote result file './lp_solutions/grafo6933.47.sol'

