
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:03:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6069.38.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/grafo6069.38.lp
Reading time = 0.14 seconds
: 82971 rows, 1592 columns, 249977 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 82971 rows, 1592 columns and 249977 nonzeros
Model fingerprint: 0x4812accf
Variable types: 36 continuous, 1556 integer (1556 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 30257 rows and 24 columns
Presolve time: 0.55s
Presolved: 52714 rows, 1568 columns, 159424 nonzeros
Variable types: 0 continuous, 1568 integer (1532 binary)
Root relaxation presolved: 1568 rows, 54282 columns, 160992 nonzeros


Root relaxation: objective 3.200000e+01, 2051 iterations, 0.55 seconds (0.61 work units)
Total elapsed time = 5.15s (DegenMoves)

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

     0     0   32.00000    0  339          -   32.00000      -     -    5s
H    0     0                       3.0000000   32.00000   967%     -    6s
     0     0   32.00000    0  626    3.00000   32.00000   967%     -   11s
H    0     0                       7.0000000   32.00000   357%     -   11s
     0     0   32.00000    0  589    7.00000   32.00000   357%     -   11s
     0     0   32.00000    0  383    7.00000   32.00000   357%     -   19s
     0     0   32.00000    0  325    7.00000   32.00000   357%     -   19s
     0     0   32.00000    0  299    7.00000   32.00000   357%     -   29s
     0     0   32.00000    0  320    7.00000   32.00000   357%     -   30s
H    0     0                      12.0000000   32.00000   167%     -   48s
H    0     0                      14.0000000   32.00000   129%     -   48s
     0     0   32.00000    0  287   14.00000   32.00000   129%     -   48s
     0     0   32.00000    0  296   14.00000   32.00000   129%     -   48s
     0     0          -    0        14.00000   32.00000   129%     -   50s

Cutting planes:
  Cover: 19
  Clique: 20
  MIR: 107
  StrongCG: 1
  GUB cover: 1
  Zero half: 32
  RLT: 48
  BQP: 3

Explored 1 nodes (51715 simplex iterations) in 50.10 seconds (49.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 12 7 3 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.200000000000e+01, gap 128.5714%

Wrote result file './lp_solutions/grafo6069.38.sol'

