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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
const b:int;
const a:int extends b complete;
const c:int extends a;
const d:int extends a;
procedure P() returns () {
var x:int;
assert c <: b && d <: a;
assume x <: a && !(x <: c) && x != a;
assert x <: d;
assert b <: x; // should not be provable
}
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