
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:55:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7219.45.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/grafo7219.45.lp
Reading time = 0.22 seconds
: 140680 rows, 2754 columns, 424457 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 140680 rows, 2754 columns and 424457 nonzeros
Model fingerprint: 0x81dadc17
Variable types: 52 continuous, 2702 integer (2702 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 39233 rows and 48 columns
Presolve time: 1.05s
Presolved: 101447 rows, 2706 columns, 307182 nonzeros
Variable types: 0 continuous, 2706 integer (2654 binary)
Root relaxation presolved: 2703 rows, 104150 columns, 309888 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19384    5.3840906e+01   0.000000e+00   1.122885e+05      5s
   41855    5.2726143e+01   0.000000e+00   1.244873e+05     10s
   57847    5.3000000e+01   0.000000e+00   0.000000e+00     14s
   57847    5.3000000e+01   0.000000e+00   0.000000e+00     14s
   57847    5.3000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.300000e+01, 57847 iterations, 12.83 seconds (10.29 work units)
Total elapsed time = 29.82s (DegenMoves)
Total elapsed time = 31.15s (DegenMoves)

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

     0     0   53.00000    0  739          -   53.00000      -     -   50s
H    0     0                       5.0000000   53.00000   960%     -   50s

Explored 1 nodes (86020 simplex iterations) in 50.05 seconds (64.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.300000000000e+01, gap 960.0000%

Wrote result file './lp_solutions/grafo7219.45.sol'

