
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:33:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11403.44.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/grafo11403.44.lp
Reading time = 0.27 seconds
: 163980 rows, 2911 columns, 494663 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 163980 rows, 2911 columns and 494663 nonzeros
Model fingerprint: 0x5e9e28ea
Variable types: 55 continuous, 2856 integer (2856 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, 6e+01]
Presolve removed 48072 rows and 26 columns
Presolve time: 1.19s
Presolved: 115908 rows, 2885 columns, 350966 nonzeros
Variable types: 0 continuous, 2885 integer (2830 binary)
Root relaxation presolved: 2882 rows, 118790 columns, 353851 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17628    6.4873077e+01   0.000000e+00   7.504396e+05      5s
   36625    6.0709621e+01   0.000000e+00   4.938518e+04     10s
   56827    6.0665894e+01   0.000000e+00   9.491504e+03     15s
   75586    6.0660212e+01   0.000000e+00   1.222390e+02     20s
   77290    6.1000000e+01   0.000000e+00   0.000000e+00     20s
   77290    6.1000000e+01   0.000000e+00   0.000000e+00     21s
   77290    6.1000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 6.100000e+01, 77290 iterations, 19.08 seconds (14.60 work units)
Total elapsed time = 40.35s (DegenMoves)

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

     0     0   61.00000    0  861          -   61.00000      -     -   50s
H    0     0                       4.0000000   61.00000  1425%     -   50s

Explored 1 nodes (97110 simplex iterations) in 50.06 seconds (54.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 6.100000000000e+01, gap 1425.0000%

Wrote result file './lp_solutions/grafo11403.44.sol'

