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// RUN: %boogie -typeEncoding:n -logPrefix:0n %s > %t
// RUN: %diff %s.n.expect %t
// RUN: %boogie -typeEncoding:p -logPrefix:0p %s > %t
// RUN: %diff %s.p.expect %t
// RUN: %boogie -typeEncoding:a -logPrefix:0a %s > %t
// RUN: %diff %s.a.expect %t
type Wicket;
const unique r: Wicket;
const unique s, t: Wicket extends unique r;
procedure P() returns () {
assert (forall x:Wicket, y:Wicket :: x <: s && y <: t ==> x != y);
assert false; // unprovable
}
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