
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:50:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11564.37.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/grafo11564.37.lp
Reading time = 0.10 seconds
: 62617 rows, 1774 columns, 189264 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 62617 rows, 1774 columns and 189264 nonzeros
Model fingerprint: 0x1c34cbd3
Variable types: 41 continuous, 1733 integer (1733 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 16106 rows and 28 columns
Presolve time: 0.44s
Presolved: 46511 rows, 1746 columns, 141346 nonzeros
Variable types: 0 continuous, 1746 integer (1705 binary)
Root relaxation presolved: 28081 rows, 20176 columns, 104486 nonzeros


Root relaxation: objective 3.700000e+01, 1293 iterations, 0.32 seconds (0.28 work units)

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

     0     0   37.00000    0  375          -   37.00000      -     -    1s
H    0     0                       8.0000000   37.00000   362%     -    1s
H    0     0                       9.0000000   37.00000   311%     -    1s
H    0     0                      11.0000000   37.00000   236%     -    2s
     0     0   37.00000    0  591   11.00000   37.00000   236%     -    5s
H    0     0                      12.0000000   37.00000   208%     -    5s
     0     0   37.00000    0  573   12.00000   37.00000   208%     -    5s
H    0     0                      14.0000000   37.00000   164%     -   11s
     0     0   37.00000    0  403   14.00000   37.00000   164%     -   11s
     0     0   37.00000    0  396   14.00000   37.00000   164%     -   11s
H    0     0                      15.0000000   37.00000   147%     -   25s
     0     0   37.00000    0  453   15.00000   37.00000   147%     -   25s
     0     0   37.00000    0  525   15.00000   37.00000   147%     -   26s
H    0     0                      16.0000000   37.00000   131%     -   41s
     0     0   37.00000    0  452   16.00000   37.00000   131%     -   41s
     0     0   37.00000    0  392   16.00000   37.00000   131%     -   42s
     0     0   37.00000    0  600   16.00000   37.00000   131%     -   50s

Cutting planes:
  Cover: 33
  Clique: 14
  MIR: 130
  StrongCG: 2
  GUB cover: 3
  Zero half: 45
  RLT: 63

Explored 1 nodes (54693 simplex iterations) in 50.05 seconds (42.90 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 16 15 14 ... 8

Time limit reached
Best objective 1.600000000000e+01, best bound 3.700000000000e+01, gap 131.2500%

Wrote result file './lp_solutions/grafo11564.37.sol'

