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diff --git a/test-suite/bugs/closed/shouldsucceed/1414.v b/test-suite/bugs/closed/shouldsucceed/1414.v
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--- a/test-suite/bugs/closed/shouldsucceed/1414.v
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-Require Import ZArith Coq.Program.Wf Coq.Program.Utils.
-
-Parameter data:Set.
-
-Inductive t : Set :=
- | Leaf : t
- | Node : t -> data -> t -> Z -> t.
-
-Parameter avl : t -> Prop.
-Parameter bst : t -> Prop.
-Parameter In : data -> t -> Prop.
-Parameter cardinal : t -> nat.
-Definition card2 (s:t*t) := let (s1,s2) := s in cardinal s1 + cardinal s2.
-
-Parameter split : data -> t -> t*(bool*t).
-Parameter join : t -> data -> t -> t.
-Parameter add : data -> t -> t.
-
-Program Fixpoint union
- (s u:t)
- (hb1: bst s)(ha1: avl s)(hb2: bst u)(hb2: avl u)
- { measure (cardinal s + cardinal u) } :
- {s' : t | bst s' /\ avl s' /\ forall x, In x s' <-> In x s \/ In x u} :=
- match s, u with
- | Leaf,t2 => t2
- | t1,Leaf => t1
- | Node l1 v1 r1 h1, Node l2 v2 r2 h2 =>
- if (Z_ge_lt_dec h1 h2) then
- if (Z.eq_dec h2 1)
- then add v2 s
- else
- let (l2', r2') := split v1 u in
- join (union l1 l2' _ _ _ _) v1 (union r1 (snd r2') _ _ _ _)
- else
- if (Z.eq_dec h1 1)
- then add v1 s
- else
- let (l1', r1') := split v2 u in
- join (union l1' l2 _ _ _ _) v2 (union (snd r1') r2 _ _ _ _)
- end.