
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:23:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7292.50.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/grafo7292.50.lp
Reading time = 0.28 seconds
: 154562 rows, 3034 columns, 466248 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 154562 rows, 3034 columns and 466248 nonzeros
Model fingerprint: 0x6273e8a4
Variable types: 54 continuous, 2980 integer (2980 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 35773 rows and 40 columns
Presolve time: 1.39s
Presolved: 118789 rows, 2994 columns, 359283 nonzeros
Variable types: 0 continuous, 2994 integer (2940 binary)
Root relaxation presolved: 2994 rows, 121783 columns, 362277 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12937    4.5882979e+01   0.000000e+00   1.147322e+05      5s
   28097    4.5710191e+01   0.000000e+00   4.002828e+04     10s
   42046    4.5682266e+01   0.000000e+00   4.249639e+04     15s
   55033    4.5676057e+01   0.000000e+00   2.297300e+03     20s
   59431    4.6000000e+01   0.000000e+00   0.000000e+00     22s
   59431    4.6000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 4.600000e+01, 59431 iterations, 20.06 seconds (11.63 work units)
Total elapsed time = 43.51s (DegenMoves)
Total elapsed time = 45.51s (DegenMoves)

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

     0     0   46.00000    0  643          -   46.00000      -     -   50s
H    0     0                       6.0000000   46.00000   667%     -   50s

Explored 1 nodes (77713 simplex iterations) in 50.09 seconds (39.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.600000000000e+01, gap 666.6667%

Wrote result file './lp_solutions/grafo7292.50.sol'

