
use int.Int

function g (x:int) : int

let main_g (y:int) : unit
=
  assert { g y <> 42 }

function h (x1:int) (x2:bool) : int

let main_h (y1:int) (y2:bool) : unit
=
  assert { h y1 y2 <> 42 }

function f (x:int) : int

let main_f (y:int) : unit
  requires { y = 0 }
=
  assert { f 0 <> y };
  assert { f 1 <> y }
