test/regress/regress0/simple-rdl.smt2

   1 (set-logic QF_RDL)
   2 (set-info :status unsat)
   3 (declare-fun x () Real)
   4 (declare-fun y () Real)
   5 (assert (not (=> (< (- x y) 0) (< x y))))
   6 (check-sat)
   7