; EXPECT: unsat
; COMMAND-LINE: --sygus-out=status
(set-logic SLIA)
 
(synth-fun f ((name String)) String
    ((Start String (name "A" "B" "" (str.++ Start1 Start2)))
     (Start1 String (name "A" "B" ""))
     (Start2 String (name "B" "A" (str.++ Start2 Start)))
))


(declare-var name String)
 
(constraint (= (f "BB") "AAAAAAAAAAAA"))
 
(check-synth)