
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:06:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3197.41.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/grafo3197.41.lp
Reading time = 0.24 seconds
: 117404 rows, 2381 columns, 354310 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 117404 rows, 2381 columns and 354310 nonzeros
Model fingerprint: 0xd37924f2
Variable types: 49 continuous, 2332 integer (2332 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 36587 rows and 32 columns
Presolve time: 1.09s
Presolved: 80817 rows, 2349 columns, 245023 nonzeros
Variable types: 0 continuous, 2349 integer (2300 binary)
Root relaxation presolved: 2349 rows, 83166 columns, 247372 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14320    4.9789632e+01   0.000000e+00   5.637030e+04      5s
   32918    4.9711924e+01   0.000000e+00   6.550316e+04     10s
   51794    4.9698148e+01   0.000000e+00   7.213057e+02     15s
   65423    5.0000000e+01   0.000000e+00   0.000000e+00     19s
   65423    5.0000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.000000e+01, 65423 iterations, 17.67 seconds (10.61 work units)
Total elapsed time = 44.35s (DegenMoves)
Total elapsed time = 49.46s (DegenMoves)

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

     0     0   50.00000    0  818          -   50.00000      -     -   50s
H    0     0                       3.0000000   50.00000  1567%     -   50s

Explored 1 nodes (84054 simplex iterations) in 50.05 seconds (40.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.000000000000e+01, gap 1566.6667%

Wrote result file './lp_solutions/grafo3197.41.sol'

