free c:channel.
free a:bitstring [private].
free b:bitstring.

query x:bitstring; attacker(a) ==> mess(c,a).

set verboseClauses = short.



process
  out(c,a)

(* EXPECTPV
RESULT attacker(a[]) ==> mess(c[],a[]) cannot be proved.
0.008s (user 0.004s + system 0.004s), max rss 7140K
END *)
