(set-logic QF_UFLIAFS)
(set-info :status sat)
(declare-sort E 0)
(declare-fun s () (Set E))
(declare-fun t () (Set E))
(declare-fun u () (Set E))
(assert (>= (set.card (set.union s t)) 8))
(assert (>= (set.card (set.union s u)) 8))
;(assert (<= (set.card (set.union t u)) 5))
(assert (<= (set.card s) 5))
(assert (= (as set.empty (Set E)) (set.inter t u)))
(declare-fun x1 () E)
(declare-fun x2 () E)
(declare-fun x3 () E)
(declare-fun x4 () E)
(declare-fun x5 () E)
(declare-fun x6 () E)
(assert (set.member x1 s))
(assert (set.member x2 s))
(assert (set.member x3 s))
(assert (set.member x4 s))
(assert (set.member x5 s))
(assert (set.member x6 s))
(check-sat)