
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:33:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7512.37.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/grafo7512.37.lp
Reading time = 0.07 seconds
: 55450 rows, 1841 columns, 167898 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 55450 rows, 1841 columns and 167898 nonzeros
Model fingerprint: 0x5125b6dc
Variable types: 43 continuous, 1798 integer (1798 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 3.0000000
Presolve removed 9538 rows and 31 columns
Presolve time: 0.28s
Presolved: 45912 rows, 1810 columns, 139741 nonzeros
Variable types: 0 continuous, 1810 integer (1767 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 25801 rows, 21921 columns, 99519 nonzeros


Root relaxation: objective 3.200000e+01, 1066 iterations, 0.23 seconds (0.26 work units)

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

     0     0   32.00000    0  246    8.00000   32.00000   300%     -    0s
H    0     0                      11.0000000   32.00000   191%     -    0s
H    0     0                      14.0000000   32.00000   129%     -    0s
     0     0   32.00000    0  518   14.00000   32.00000   129%     -    3s
H    0     0                      15.0000000   32.00000   113%     -    3s
     0     0   32.00000    0  508   15.00000   32.00000   113%     -    3s
     0     0   32.00000    0  437   15.00000   32.00000   113%     -    9s
     0     0   32.00000    0  362   15.00000   32.00000   113%     -    9s
     0     0   32.00000    0  302   15.00000   32.00000   113%     -   15s
     0     0   32.00000    0  242   15.00000   32.00000   113%     -   15s
     0     0   32.00000    0  297   15.00000   32.00000   113%     -   18s
     0     0   32.00000    0  243   15.00000   32.00000   113%     -   18s
H    0     0                      16.0000000   32.00000   100%     -   25s
     0     0   32.00000    0  288   16.00000   32.00000   100%     -   25s
     0     0   32.00000    0  302   16.00000   32.00000   100%     -   25s
     0     0   32.00000    0  383   16.00000   32.00000   100%     -   30s
     0     0   32.00000    0  338   16.00000   32.00000   100%     -   31s
     0     2   32.00000    0  310   16.00000   32.00000   100%     -   38s
    23    28   32.00000    6  236   16.00000   32.00000   100%   334   45s
   213   234   26.66667   43  203   16.00000   32.00000   100%   201   50s

Cutting planes:
  Gomory: 1
  Cover: 7
  Clique: 13
  MIR: 52
  GUB cover: 2
  Inf proof: 1
  Zero half: 5
  RLT: 40

Explored 233 nodes (97911 simplex iterations) in 50.05 seconds (59.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 16 15 14 ... 3

Time limit reached
Best objective 1.600000000000e+01, best bound 3.200000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo7512.37.sol'

