
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:36:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6232.39.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/grafo6232.39.lp
Reading time = 0.10 seconds
: 64252 rows, 2099 columns, 194591 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 64252 rows, 2099 columns and 194591 nonzeros
Model fingerprint: 0x1fb503bf
Variable types: 47 continuous, 2052 integer (2052 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 4.0000000
Presolve removed 8337 rows and 37 columns
Presolve time: 0.45s
Presolved: 55915 rows, 2062 columns, 169998 nonzeros
Variable types: 0 continuous, 2062 integer (2015 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2059 rows, 57974 columns, 172060 nonzeros


Root relaxation: objective 3.900000e+01, 24884 iterations, 3.84 seconds (3.40 work units)
Total elapsed time = 11.93s (DegenMoves)

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

     0     0   39.00000    0  529    7.00000   39.00000   457%     -   15s
H    0     0                      10.0000000   39.00000   290%     -   15s
H    0     0                      11.0000000   39.00000   255%     -   17s
H    0     0                      12.0000000   39.00000   225%     -   17s
     0     0   39.00000    0  655   12.00000   39.00000   225%     -   22s
     0     0   39.00000    0  567   12.00000   39.00000   225%     -   23s
H    0     0                      13.0000000   39.00000   200%     -   42s
H    0     0                      14.0000000   39.00000   179%     -   42s
     0     0   38.00000    0  490   14.00000   38.00000   171%     -   42s
     0     0   38.00000    0  572   14.00000   38.00000   171%     -   44s
     0     0   38.00000    0  701   14.00000   38.00000   171%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 22
  MIR: 137
  StrongCG: 2
  GUB cover: 2
  Zero half: 37
  RLT: 50

Explored 1 nodes (67832 simplex iterations) in 50.06 seconds (45.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 14 13 12 ... 4

Time limit reached
Best objective 1.400000000000e+01, best bound 3.800000000000e+01, gap 171.4286%

Wrote result file './lp_solutions/grafo6232.39.sol'

