(* Should find that observational equivalence is wrong *)

param verboseRules = yes.

fun enc/2.
reduc dec(enc(x,y),y) = x.

free c.
private free s,k.
noninterf s.

process
  in(dec(enc(s,k),k), =())

(* EXPECTPV
RESULT Non-interference s cannot be proved.
0.016s (user 0.012s + system 0.004s), max rss 7444K
END *)
