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cvc5-cvc5-1.2.0.examples.api.smtlib.strings.smt2 Maven / Gradle / Ivy

(set-logic QF_SLIA)
(set-option :produce-models true)

(define-const ab String "ab")
(define-const abc String "abc")

(declare-const x String)
(declare-const y String)
(declare-const z String)

; x.ab.y = abc.z
(assert (= (str.++ x ab y) (str.++ abc z)))
; |y| >= 0
(assert (>= (str.len y) 0))

; Regular expression: (ab[c-e]*f)|g|h
(define-const r RegLan
  (re.union
    (re.++ (str.to_re "ab") (re.* (re.range "c" "e")) (str.to_re "f"))
    (str.to_re "f")
    (str.to_re "h")
    )
  )

; s1.s2 in (ab[c-e]*f)|g|h
(assert (str.in_re (str.++ "s1" "s2") r))

(check-sat)