
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:10:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6348.43.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/grafo6348.43.lp
Reading time = 0.31 seconds
: 159316 rows, 2718 columns, 480461 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 159316 rows, 2718 columns and 480461 nonzeros
Model fingerprint: 0xa52a6bba
Variable types: 52 continuous, 2666 integer (2666 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, 5e+01]
Presolve removed 55602 rows and 14 columns
Presolve time: 1.22s
Presolved: 103714 rows, 2704 columns, 314234 nonzeros
Variable types: 0 continuous, 2704 integer (2652 binary)
Root relaxation presolved: 2696 rows, 106410 columns, 316938 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13893    5.4959254e+01   0.000000e+00   4.418244e+04      5s
   29012    5.4921117e+01   0.000000e+00   1.490927e+04     10s
   43555    5.4909532e+01   0.000000e+00   1.402539e+04     15s
   58350    5.4904292e+01   0.000000e+00   4.987609e+03     20s
   72335    5.4902777e+01   0.000000e+00   2.780791e+01     25s
   73621    5.5000000e+01   0.000000e+00   0.000000e+00     26s
   73621    5.5000000e+01   0.000000e+00   0.000000e+00     26s
   73621    5.5000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 5.500000e+01, 73621 iterations, 24.08 seconds (17.79 work units)
Total elapsed time = 44.95s (DegenMoves)
Total elapsed time = 46.79s (DegenMoves)

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

     0     0   55.00000    0  564          -   55.00000      -     -   50s
H    0     0                       7.0000000   55.00000   686%     -   50s

Explored 1 nodes (89278 simplex iterations) in 50.07 seconds (42.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.500000000000e+01, gap 685.7143%

Wrote result file './lp_solutions/grafo6348.43.sol'

