
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:19:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7597.44.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/grafo7597.44.lp
Reading time = 0.30 seconds
: 187127 rows, 3020 columns, 564254 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 187127 rows, 3020 columns and 564254 nonzeros
Model fingerprint: 0x8b72c334
Variable types: 57 continuous, 2963 integer (2963 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 56817 rows and 33 columns
Presolve time: 1.57s
Presolved: 130310 rows, 2987 columns, 394287 nonzeros
Variable types: 0 continuous, 2987 integer (2930 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2981 rows, 133291 columns, 397274 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17062    6.5973737e+01   0.000000e+00   2.460759e+05      5s
   36487    6.2942112e+01   0.000000e+00   7.970701e+03     10s
   53692    6.2935404e+01   0.000000e+00   4.108392e+03     15s
   70897    6.2933368e+01   0.000000e+00   1.075969e+03     20s
   79262    6.3000000e+01   0.000000e+00   0.000000e+00     22s
   79262    6.3000000e+01   0.000000e+00   0.000000e+00     22s
   79262    6.3000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 6.300000e+01, 79262 iterations, 20.62 seconds (16.47 work units)

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

     0     0   63.00000    0 1315    5.00000   63.00000  1160%     -   50s

Explored 1 nodes (92325 simplex iterations) in 50.05 seconds (45.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.300000000000e+01, gap 1160.0000%

Wrote result file './lp_solutions/grafo7597.44.sol'

