test/regress/regress0/strings/str005.smt2


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(set-logic ALL_SUPPORTED)
(set-info :status unsat)

(declare-fun xx () String)
(declare-fun yy () String)
(declare-fun zz () String)
(declare-fun ww () String)
(declare-fun pp () String)
(declare-fun qq () String)

; common postfix
;(assert (= (str.++ xx "aa") (str.++ xx "bb")))

(assert (= (str.len yy) 0))
(assert (not (= yy "")))

(check-sat)