YES
Did not drop rules.
Inlined conditions for 0 rules.
Left-inlined conditions for 0 rules.
Due to Ifrit-method removed 0 infeasible rules.
Did not use redundant rules method.
INFEASIBLE because

problem |(zero(s(x))
         ,even(x)) ->* |(true(),true())
obtained from input
requires
  [problem zero(s(x)) ->* true()
  obtained from
  root-nonreachability
  requires
    [problem obtained from
    narrowing is proven infeasible
    using the symbol transition graph on
    false() ->* true()
    ,problem obtained from narrowing
    is proven infeasible
    since unification failed for
    zero(s(x)) ~ true()]]

where | is used as a fresh function symbol, since it is illegal in the input format.