
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:25:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7712.50.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/grafo7712.50.lp
Reading time = 0.65 seconds
: 346447 rows, 3502 columns, 1042573 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 346447 rows, 3502 columns and 1042573 nonzeros
Model fingerprint: 0xb2dc180f
Variable types: 59 continuous, 3443 integer (3443 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 131093 rows and 25 columns
Presolve time: 3.26s
Presolved: 215354 rows, 3477 columns, 649772 nonzeros
Variable types: 0 continuous, 3477 integer (3418 binary)
Root relaxation presolved: 3477 rows, 218831 columns, 653249 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    1861    2.5925374e+02   0.000000e+00   2.320166e+06      5s
   23489    9.1519899e+01   0.000000e+00   1.292320e+07     10s
   33954    6.6692047e+01   0.000000e+00   1.247159e+06     15s
   45141    6.5626514e+01   0.000000e+00   7.651400e+04     20s
   56061    6.5589410e+01   0.000000e+00   4.697679e+04     25s
   66141    6.5570874e+01   0.000000e+00   2.521139e+04     30s
   76221    6.5561768e+01   0.000000e+00   2.559245e+04     35s
   85461    6.5556137e+01   0.000000e+00   7.674864e+03     40s
   95541    6.5552209e+01   0.000000e+00   4.498428e+03     45s

Root relaxation: time limit, 0 iterations, 46.05 seconds (27.06 work units)

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

H    0     0                       2.0000000  365.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.06 seconds (30.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 3.650000000000e+02, gap 18150.0000%

Wrote result file './lp_solutions/grafo7712.50.sol'

