Version: 1.13 
 _ data/zoo_json_alt_waypoint4/BtEurope_2.json -f output/flip/data/zoo_json_alt_waypoint4/BtEurope_2.json.subpaths
Flip subpaths generated in 0.207 seconds!
real 2.82
user 0.76
sys 0.08
<logging.Logger object at 0x7f7a6d19f7d0>
W1217 12:32:36.309 2404580 flip.py:156] subpath ['7', '21', '16'] is superfluous, discarding it
W1217 12:32:36.310 2404580 flip.py:156] subpath ['21', '16', '23', '14', '35', '41', '31', '45', '40'] is superfluous, discarding it
W1217 12:32:36.310 2404580 flip.py:156] subpath ['21', '16', '23', '14', '35', '41', '40'] is superfluous, discarding it
W1217 12:32:36.311 2404580 flip.py:156] subpath ['23', '14', '35', '41', '31', '45', '40'] is superfluous, discarding it
W1217 12:32:36.311 2404580 flip.py:156] subpath ['16', '23', '14', '35', '41', '31', '45', '40'] is superfluous, discarding it
Traceback (most recent call last):
  File "runflipwithdfa.py", line 39, in <module>
    main(jsonPath, subpathsPath)
  File "runflipwithdfa.py", line 30, in main
    order = flip.compute_sequence(graph)
  File "/nfs/home/student.aau.dk/rtollu18/dat7/FLIP/flip.py", line 1374, in compute_sequence
    storage.extract()
  File "/nfs/home/student.aau.dk/rtollu18/dat7/FLIP/flip.py", line 1009, in extract
    self.graph.initialize()
  File "/nfs/home/student.aau.dk/rtollu18/dat7/FLIP/flip.py", line 75, in initialize
    self.color_dag(self.final)
  File "/nfs/home/student.aau.dk/rtollu18/dat7/FLIP/flip.py", line 182, in color_dag
    'source %s is not green in %s graph' %(node, desc))
FLIP.flip.PreconditionFailedError: source 11 is not green in final graph
