Goal:
    G : t  x : V.t  i : V.t  source_vertex0 : VSet.In (s G) (V G)  H0 : x = i
  ============================
   False


DEBUG:Going to execute:
autorewrite with set_eq_simpl in *
DEBUG LTAC Evaluated term: H0
Level 3: Backtrace:

Nothing to rewrite.
Level 3: Backtrace:

Nothing to rewrite.
Level 2: Backtrace:

No matching clauses for match.