1; COMMAND-LINE: --ext-rew-prep --ext-rew-prep-agg
2; EXPECT: sat
3(set-logic ALL)
4(declare-sort Atom 0)
5
6(declare-fun a () Atom)
7(declare-fun b () Atom)
8(declare-fun c () Atom)
9(declare-fun S () (Set Atom))
10
11
12(assert (= S (union (singleton a) (union (singleton c) (singleton b)))))
13
14(check-sat)
15
16