
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:08:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5199.42.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/grafo5199.42.lp
Reading time = 0.38 seconds
: 239330 rows, 2998 columns, 720888 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 239330 rows, 2998 columns and 720888 nonzeros
Model fingerprint: 0x040e72a3
Variable types: 56 continuous, 2942 integer (2942 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]
Found heuristic solution: objective 1.0000000
Presolve removed 88845 rows and 8 columns
Presolve time: 1.63s
Presolved: 150485 rows, 2990 columns, 454904 nonzeros
Variable types: 0 continuous, 2990 integer (2934 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2965 rows, 153450 columns, 457894 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14626    9.3213630e+01   0.000000e+00   1.592590e+05      5s
   32687    6.9869603e+01   0.000000e+00   1.282942e+05     10s
   51088    6.8778489e+01   0.000000e+00   7.628183e+04     15s
   69329    6.8740614e+01   0.000000e+00   1.048537e+05     20s
   88199    6.8726978e+01   0.000000e+00   1.316401e+04     25s
  107069    6.8720705e+01   0.000000e+00   1.634302e+03     30s
  125939    6.8718829e+01   0.000000e+00   3.506578e+01     35s
  130888    6.9000000e+01   0.000000e+00   0.000000e+00     36s
  130888    6.9000000e+01   0.000000e+00   0.000000e+00     36s
  130888    6.9000000e+01   0.000000e+00   0.000000e+00     36s

Root relaxation: objective 6.900000e+01, 130888 iterations, 34.54 seconds (26.49 work units)

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

     0     0   69.00000    0 1801   12.00000   69.00000   475%     -   50s

Explored 1 nodes (137388 simplex iterations) in 50.05 seconds (42.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 1 

Time limit reached
Best objective 1.200000000000e+01, best bound 6.900000000000e+01, gap 475.0000%

Wrote result file './lp_solutions/grafo5199.42.sol'

