
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:48:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7585.48.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/grafo7585.48.lp
Reading time = 0.67 seconds
: 342829 rows, 3790 columns, 1032295 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 342829 rows, 3790 columns and 1032295 nonzeros
Model fingerprint: 0xe14e6341
Variable types: 64 continuous, 3726 integer (3726 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, 6e+01]
Presolve removed 122568 rows and 24 columns
Presolve time: 3.13s
Presolved: 220261 rows, 3766 columns, 665218 nonzeros
Variable types: 0 continuous, 3766 integer (3702 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3757 rows, 224018 columns, 668984 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    1559    2.7939850e+02   0.000000e+00   8.735515e+05      5s
   19168    1.0255685e+02   0.000000e+00   5.797046e+06     11s
   27124    9.0401507e+01   0.000000e+00   4.306909e+05     15s
   37926    7.3855302e+01   0.000000e+00   7.940286e+05     21s
   46574    6.9796105e+01   0.000000e+00   4.369096e+05     25s
   56795    6.9733509e+01   0.000000e+00   4.593438e+05     30s
   66179    6.9683881e+01   0.000000e+00   1.073006e+05     35s
   76306    6.9652295e+01   0.000000e+00   4.531588e+04     40s
   84875    6.9636617e+01   0.000000e+00   7.537456e+04     45s

Root relaxation: time limit, 93889 iterations, 46.14 seconds (25.96 work units)

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

     0     0          -    0         8.00000  421.00000  5162%     -   50s

Explored 1 nodes (93889 simplex iterations) in 50.04 seconds (29.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.210000000000e+02, gap 5162.5000%

Wrote result file './lp_solutions/grafo7585.48.sol'

