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(set-logic QF_S) (set-info :status sat) (set-option :strings-exp true) (declare-const s String) (assert (str.in.re s (re.inter (re.++ (str.to.re "a") (re.* (str.to.re "b")) (re.inter (str.to.re "c") (re.* (str.to.re "c")))) (re.++ (str.to.re "a") (re.* (str.to.re "b")) (re.* (str.to.re "c"))) ))) (check-sat)