
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:04:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6611.37.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/grafo6611.37.lp
Reading time = 0.28 seconds
: 172477 rows, 2349 columns, 519617 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 172477 rows, 2349 columns and 519617 nonzeros
Model fingerprint: 0xf496275e
Variable types: 49 continuous, 2300 integer (2300 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]
Found heuristic solution: objective 2.0000000
Presolve removed 70772 rows and 19 columns
Presolve time: 1.16s
Presolved: 101705 rows, 2330 columns, 307924 nonzeros
Variable types: 0 continuous, 2330 integer (2281 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2324 rows, 104029 columns, 310254 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19630    5.9772027e+01   0.000000e+00   9.576353e+04      5s
   42922    5.7711798e+01   0.000000e+00   5.787281e+03     10s
   65197    5.7704625e+01   0.000000e+00   1.263555e+03     15s
   66139    5.8000000e+01   0.000000e+00   0.000000e+00     15s
   66139    5.8000000e+01   0.000000e+00   0.000000e+00     15s
   66139    5.8000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.800000e+01, 66139 iterations, 13.89 seconds (10.34 work units)
Total elapsed time = 33.99s (DegenMoves)
Total elapsed time = 35.35s (DegenMoves)

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

     0     0   58.00000    0  619   10.00000   58.00000   480%     -   37s
H    0     0                      11.0000000   58.00000   427%     -   37s
     0     0          -    0        11.00000   58.00000   427%     -   50s

Cutting planes:
  Gomory: 44
  Cover: 43
  Clique: 26
  MIR: 151
  StrongCG: 1
  GUB cover: 4
  Zero half: 28
  RLT: 49
  BQP: 4

Explored 1 nodes (86230 simplex iterations) in 50.02 seconds (48.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.800000000000e+01, gap 427.2727%

Wrote result file './lp_solutions/grafo6611.37.sol'

