
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:10:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4045.42.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/grafo4045.42.lp
Reading time = 0.28 seconds
: 149718 rows, 2650 columns, 451621 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 149718 rows, 2650 columns and 451621 nonzeros
Model fingerprint: 0xd667c6ad
Variable types: 52 continuous, 2598 integer (2598 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 45685 rows and 8 columns
Presolve time: 1.20s
Presolved: 104033 rows, 2642 columns, 314857 nonzeros
Variable types: 0 continuous, 2642 integer (2590 binary)
Root relaxation presolved: 2639 rows, 106672 columns, 317499 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15029    5.6777510e+01   0.000000e+00   1.591629e+05      5s
   30087    5.6672204e+01   0.000000e+00   2.567828e+04     10s
   46012    5.6635960e+01   0.000000e+00   5.969401e+03     15s
   61937    5.6625349e+01   0.000000e+00   1.069491e+04     20s
   77863    5.6622335e+01   0.000000e+00   6.703627e+01     25s
   83055    5.7000000e+01   0.000000e+00   0.000000e+00     27s
   83055    5.7000000e+01   0.000000e+00   0.000000e+00     27s
   83055    5.7000000e+01   0.000000e+00   0.000000e+00     27s

Root relaxation: objective 5.700000e+01, 83055 iterations, 25.36 seconds (16.64 work units)
Total elapsed time = 49.27s (DegenMoves)

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

     0     0   57.00000    0  703          -   57.00000      -     -   50s
H    0     0                       5.0000000   57.00000  1040%     -   50s

Explored 1 nodes (96222 simplex iterations) in 50.06 seconds (37.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.700000000000e+01, gap 1040.0000%

Wrote result file './lp_solutions/grafo4045.42.sol'

