
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:41:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6061.45.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/grafo6061.45.lp
Reading time = 0.26 seconds
: 157948 rows, 2875 columns, 476426 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 157948 rows, 2875 columns and 476426 nonzeros
Model fingerprint: 0xa657ded5
Variable types: 54 continuous, 2821 integer (2821 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 44706 rows and 21 columns
Presolve time: 1.10s
Presolved: 113242 rows, 2854 columns, 342726 nonzeros
Variable types: 0 continuous, 2854 integer (2800 binary)
Root relaxation presolved: 2842 rows, 116084 columns, 345580 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19983    5.9906061e+01   0.000000e+00   4.424266e+04      5s
   40589    5.9882220e+01   0.000000e+00   1.329591e+04     10s
   59309    5.9877632e+01   0.000000e+00   7.919006e+02     15s
   68232    6.0000000e+01   0.000000e+00   0.000000e+00     17s
   68232    6.0000000e+01   0.000000e+00   0.000000e+00     17s
   68232    6.0000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 6.000000e+01, 68232 iterations, 16.09 seconds (13.52 work units)
Total elapsed time = 48.40s (DegenMoves)

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

     0     0   60.00000    0  977          -   60.00000      -     -   50s
H    0     0                       2.0000000   60.00000  2900%     -   50s

Explored 1 nodes (86367 simplex iterations) in 50.05 seconds (48.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 6.000000000000e+01, gap 2900.0000%

Wrote result file './lp_solutions/grafo6061.45.sol'

