
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:38:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6582.49.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/grafo6582.49.lp
Reading time = 0.28 seconds
: 162612 rows, 2781 columns, 490018 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 162612 rows, 2781 columns and 490018 nonzeros
Model fingerprint: 0x85a4bf62
Variable types: 50 continuous, 2731 integer (2731 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 47409 rows and 31 columns
Presolve time: 1.31s
Presolved: 115203 rows, 2750 columns, 348145 nonzeros
Variable types: 0 continuous, 2750 integer (2700 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2744 rows, 117947 columns, 350895 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17356    4.9473014e+01   0.000000e+00   8.211140e+04      5s
   35681    4.7932797e+01   0.000000e+00   8.733767e+04     10s
   53366    4.7920211e+01   0.000000e+00   1.546819e+04     15s
   69510    4.7915278e+01   0.000000e+00   5.324187e+03     20s
   85639    4.7913664e+01   0.000000e+00   1.573178e+03     25s
   95130    4.8000000e+01   0.000000e+00   0.000000e+00     28s
   95130    4.8000000e+01   0.000000e+00   0.000000e+00     28s
   95130    4.8000000e+01   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 4.800000e+01, 95130 iterations, 26.29 seconds (21.23 work units)
Total elapsed time = 45.52s (DegenMoves)

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

     0     0   48.00000    0  518    6.00000   48.00000   700%     -   50s

Explored 1 nodes (109953 simplex iterations) in 50.09 seconds (46.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.800000000000e+01, gap 700.0000%

Wrote result file './lp_solutions/grafo6582.49.sol'

