
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:12:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4086.46.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/grafo4086.46.lp
Reading time = 0.15 seconds
: 93469 rows, 2381 columns, 282189 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 93469 rows, 2381 columns and 282189 nonzeros
Model fingerprint: 0xb14a7082
Variable types: 46 continuous, 2335 integer (2335 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 18563 rows and 38 columns
Presolve time: 0.65s
Presolved: 74906 rows, 2343 columns, 226924 nonzeros
Variable types: 0 continuous, 2343 integer (2297 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2343 rows, 77249 columns, 229267 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24235    3.9949212e+01   0.000000e+00   8.193110e+04      5s
   47111    3.9939087e+01   0.000000e+00   3.783363e+04     10s
   52917    4.0000000e+01   0.000000e+00   0.000000e+00     11s
   52917    4.0000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.000000e+01, 52917 iterations, 10.54 seconds (8.84 work units)
Total elapsed time = 24.42s (DegenMoves)
Total elapsed time = 44.82s (DegenMoves)
Total elapsed time = 48.09s (DegenMoves)

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

     0     0   40.00000    0  529    9.00000   40.00000   344%     -   50s

Explored 1 nodes (91971 simplex iterations) in 50.03 seconds (63.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.000000000000e+01, gap 344.4444%

Wrote result file './lp_solutions/grafo4086.46.sol'

