
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:31:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3689.49.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/grafo3689.49.lp
Reading time = 0.29 seconds
: 171272 rows, 3434 columns, 517033 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 171272 rows, 3434 columns and 517033 nonzeros
Model fingerprint: 0x8bb44417
Variable types: 60 continuous, 3374 integer (3374 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 40727 rows and 43 columns
Presolve time: 1.34s
Presolved: 130545 rows, 3391 columns, 395538 nonzeros
Variable types: 0 continuous, 3391 integer (3331 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 3385 rows, 133930 columns, 398929 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14086    6.2803253e+01   0.000000e+00   8.456171e+05      5s
   28886    6.0628524e+01   0.000000e+00   1.888751e+05     10s
   42602    6.0574725e+01   0.000000e+00   5.916667e+04     15s
   55664    6.0549755e+01   0.000000e+00   1.130980e+05     20s
   69358    6.0529627e+01   0.000000e+00   3.832553e+04     25s
   81576    6.0518964e+01   0.000000e+00   1.721272e+04     30s
   94259    6.0510694e+01   0.000000e+00   2.688544e+04     35s
  106943    6.0505258e+01   0.000000e+00   7.794095e+03     40s
  120131    6.0500885e+01   0.000000e+00   2.717947e+04     45s

Root relaxation: time limit, 133042 iterations, 48.33 seconds (34.24 work units)

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

     0     0          -    0        13.00000  287.00000  2108%     -   50s

Explored 1 nodes (133042 simplex iterations) in 50.02 seconds (35.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 13 

Time limit reached
Best objective 1.300000000000e+01, best bound 2.870000000000e+02, gap 2107.6923%

Wrote result file './lp_solutions/grafo3689.49.sol'

