
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:59:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6900.39.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/grafo6900.39.lp
Reading time = 0.28 seconds
: 169629 rows, 2368 columns, 511017 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 169629 rows, 2368 columns and 511017 nonzeros
Model fingerprint: 0x90a8e14d
Variable types: 47 continuous, 2321 integer (2321 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 68813 rows and 48 columns
Presolve time: 1.49s
Presolved: 100816 rows, 2320 columns, 305094 nonzeros
Variable types: 0 continuous, 2320 integer (2273 binary)
Root relaxation presolved: 2309 rows, 103125 columns, 307414 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17572    5.0876644e+01   0.000000e+00   1.188346e+05      5s
   42550    5.0767605e+01   0.000000e+00   2.308966e+03     10s
   55427    5.1000000e+01   0.000000e+00   0.000000e+00     13s
   55427    5.1000000e+01   0.000000e+00   0.000000e+00     13s
   55427    5.1000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 5.100000e+01, 55427 iterations, 10.97 seconds (8.07 work units)
Total elapsed time = 26.23s (DegenMoves)

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

     0     0   51.00000    0  725          -   51.00000      -     -   50s
H    0     0                       5.0000000   51.00000   920%     -   50s

Explored 1 nodes (79885 simplex iterations) in 50.05 seconds (68.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.100000000000e+01, gap 920.0000%

Wrote result file './lp_solutions/grafo6900.39.sol'

