
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:16:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6832.38.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/grafo6832.38.lp
Reading time = 0.13 seconds
: 82104 rows, 1701 columns, 247538 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 82104 rows, 1701 columns and 247538 nonzeros
Model fingerprint: 0x2eeee118
Variable types: 38 continuous, 1663 integer (1663 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 29152 rows and 21 columns
Presolve time: 0.54s
Presolved: 52952 rows, 1680 columns, 160420 nonzeros
Variable types: 0 continuous, 1680 integer (1642 binary)
Root relaxation presolved: 1677 rows, 54629 columns, 162100 nonzeros


Root relaxation: objective 3.600000e+01, 1598 iterations, 0.36 seconds (0.35 work units)
Total elapsed time = 8.41s (DegenMoves)

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

     0     0   36.00000    0  346          -   36.00000      -     -    9s
H    0     0                       8.0000000   36.00000   350%     -   10s
     0     0   36.00000    0  568    8.00000   36.00000   350%     -   14s
H    0     0                       9.0000000   36.00000   300%     -   14s
     0     0   36.00000    0  487    9.00000   36.00000   300%     -   15s
H    0     0                      10.0000000   36.00000   260%     -   26s
     0     0   36.00000    0  422   10.00000   36.00000   260%     -   26s
     0     0   36.00000    0  408   10.00000   36.00000   260%     -   27s
     0     0   36.00000    0  492   10.00000   36.00000   260%     -   37s
H    0     0                      11.0000000   36.00000   227%     -   37s
     0     0   36.00000    0  443   11.00000   36.00000   227%     -   38s
     0     0   36.00000    0  486   11.00000   36.00000   227%     -   50s

Cutting planes:
  Cover: 17
  Clique: 17
  MIR: 128
  StrongCG: 1
  Zero half: 27
  RLT: 52
  BQP: 5

Explored 1 nodes (54704 simplex iterations) in 50.07 seconds (56.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 8 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.600000000000e+01, gap 227.2727%

Wrote result file './lp_solutions/grafo6832.38.sol'

