
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:25:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2627.40.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/grafo2627.40.lp
Reading time = 0.28 seconds
: 106188 rows, 2159 columns, 320357 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 106188 rows, 2159 columns and 320357 nonzeros
Model fingerprint: 0x35f2fcd9
Variable types: 44 continuous, 2115 integer (2115 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 40648 rows and 40 columns
Presolve time: 0.94s
Presolved: 65540 rows, 2119 columns, 198915 nonzeros
Variable types: 0 continuous, 2119 integer (2075 binary)
Root relaxation presolved: 2116 rows, 67656 columns, 201034 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13843    4.3808598e+01   0.000000e+00   5.430676e+04      5s
   30489    4.3760908e+01   0.000000e+00   3.329952e+03     10s
   39652    4.4000000e+01   0.000000e+00   0.000000e+00     13s
   39652    4.4000000e+01   0.000000e+00   0.000000e+00     13s
   39652    4.4000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 4.400000e+01, 39652 iterations, 11.67 seconds (5.55 work units)
Total elapsed time = 24.37s (DegenMoves)
Total elapsed time = 44.17s (DegenMoves)
Total elapsed time = 48.72s (DegenMoves)

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

     0     0   44.00000    0  497          -   44.00000      -     -   49s
H    0     0                       6.0000000   44.00000   633%     -   50s

Explored 1 nodes (67336 simplex iterations) in 50.18 seconds (40.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.400000000000e+01, gap 633.3333%

Wrote result file './lp_solutions/grafo2627.40.sol'

