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42 lines
621 B
Plaintext
42 lines
621 B
Plaintext
node f(x : bool) returns (y : bool)
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contract
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var c, cx : bool;
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let
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c = not y;
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cx = not (x & false fby x);
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tel
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assume cx
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enforce c
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let
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automaton
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state A do y = x unless x then B
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state B do y = false fby x until x then A
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end
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tel
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node g(x : bool) returns (y : bool)
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contract
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var ok : bool;
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let
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automaton
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state No_x do ok = true until x then One_x
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state One_x do ok = not x
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until x then Error
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| not x then One_no_x
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state One_no_x do ok = not x
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until x then Error
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| not x then No_x
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state Error do ok = false
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end
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tel
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assume ok
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enforce not y
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let
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y = f(x);
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tel
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