
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:35:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6639.48.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/grafo6639.48.lp
Reading time = 0.19 seconds
: 123860 rows, 3074 columns, 374402 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 123860 rows, 3074 columns and 374402 nonzeros
Model fingerprint: 0x900f5843
Variable types: 56 continuous, 3018 integer (3018 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 19582 rows and 8 columns
Presolve time: 0.75s
Presolved: 104278 rows, 3066 columns, 316071 nonzeros
Variable types: 0 continuous, 3066 integer (3010 binary)
Root relaxation presolved: 3056 rows, 107334 columns, 319137 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17150    5.5616310e+01   0.000000e+00   6.617188e+04      5s
   34716    5.5571908e+01   0.000000e+00   5.137725e+04     10s
   51436    5.5558961e+01   0.000000e+00   3.414481e+03     15s
   67738    5.5556267e+01   0.000000e+00   5.808009e+01     20s
   70915    5.6000000e+01   0.000000e+00   0.000000e+00     21s
   70915    5.6000000e+01   0.000000e+00   0.000000e+00     21s
   70915    5.6000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 5.600000e+01, 70915 iterations, 20.23 seconds (16.86 work units)
Total elapsed time = 38.32s (DegenMoves)

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

     0     0   56.00000    0  471          -   56.00000      -     -   40s
H    0     0                      10.0000000   56.00000   460%     -   41s
     0     0          -    0        10.00000   56.00000   460%     -   50s

Cutting planes:
  Gomory: 38
  Cover: 37
  Clique: 14
  MIR: 237
  GUB cover: 2
  Zero half: 79
  RLT: 52
  BQP: 3

Explored 1 nodes (90505 simplex iterations) in 50.03 seconds (45.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.600000000000e+01, gap 460.0000%

Wrote result file './lp_solutions/grafo6639.48.sol'

