
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:05:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6588.49.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/grafo6588.49.lp
Reading time = 0.32 seconds
: 135725 rows, 3132 columns, 409939 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 135725 rows, 3132 columns and 409939 nonzeros
Model fingerprint: 0xac7b999a
Variable types: 56 continuous, 3076 integer (3076 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 24215 rows and 0 columns
Presolve time: 1.01s
Presolved: 111510 rows, 3132 columns, 337687 nonzeros
Variable types: 0 continuous, 3132 integer (3076 binary)
Root relaxation presolved: 3093 rows, 114603 columns, 340819 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15519    5.4016289e+01   0.000000e+00   3.582535e+05      5s
   29739    5.3979464e+01   0.000000e+00   5.360219e+04     10s
   42510    5.3968759e+01   0.000000e+00   8.490961e+04     15s
   56190    5.3961409e+01   0.000000e+00   1.418360e+04     20s
   69414    5.3956928e+01   0.000000e+00   1.990986e+04     25s
   81726    5.3954704e+01   0.000000e+00   3.090952e+03     30s
   94952    5.3953870e+01   0.000000e+00   3.212100e+03     35s
  105258    5.4000000e+01   0.000000e+00   0.000000e+00     39s
  105258    5.4000000e+01   0.000000e+00   0.000000e+00     39s
  105258    5.4000000e+01   0.000000e+00   0.000000e+00     39s

Root relaxation: objective 5.400000e+01, 105258 iterations, 38.03 seconds (25.20 work units)

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

     0     0   54.00000    0 1964          -   54.00000      -     -   50s
H    0     0                       2.0000000   54.00000  2600%     -   50s

Explored 1 nodes (109466 simplex iterations) in 50.06 seconds (35.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 5.400000000000e+01, gap 2600.0000%

Wrote result file './lp_solutions/grafo6588.49.sol'

