
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:20:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5745.50.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/grafo5745.50.lp
Reading time = 1.09 seconds
: 504830 rows, 4604 columns, 1519462 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 504830 rows, 4604 columns and 1519462 nonzeros
Model fingerprint: 0xd751bc02
Variable types: 73 continuous, 4531 integer (4531 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, 7e+01]
Presolve removed 185082 rows and 12 columns
Presolve time: 4.36s
Presolved: 319748 rows, 4592 columns, 964915 nonzeros
Variable types: 0 continuous, 4592 integer (4519 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 4571 rows, 324319 columns, 969507 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.1927000e+03   0.000000e+00   1.775801e+06      7s
   10995    2.0470389e+02   0.000000e+00   1.911241e+06     10s
   25486    1.5939176e+02   0.000000e+00   2.126213e+06     18s
   30706    1.4353032e+02   0.000000e+00   1.441463e+07     21s
   40407    1.2540546e+02   0.000000e+00   9.110485e+05     28s
   44889    1.2067438e+02   0.000000e+00   7.221788e+06     31s
   53373    1.0399459e+02   0.000000e+00   3.169255e+05     37s
   57152    1.0266052e+02   0.000000e+00   4.711333e+05     40s
   64739    9.7455334e+01   0.000000e+00   1.302108e+06     45s

Root relaxation: time limit, 71522 iterations, 44.53 seconds (29.33 work units)

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

     0     0          -    0         5.00000  487.00000  9640%     -   50s

Explored 1 nodes (71522 simplex iterations) in 50.06 seconds (33.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 4.870000000000e+02, gap 9640.0000%

Wrote result file './lp_solutions/grafo5745.50.sol'

