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type C a;
function f<a>(C a) returns (int);
//axiom (forall<a> x:C a :: {f(x)} (exists y:C a :: f(y) == 42));
function g<a>(C a) returns (C a);
axiom (forall<a> x:C a :: f(g(x)) == 42);
procedure P() returns () {
var z : C int;
assume g(z) == z;
assert (exists x : C int :: f(x) == 42);
}
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