(set-logic QF_BV) (set-info :status unsat) (declare-const v0 (_ BitVec 1)) (declare-const v1 (_ BitVec 2)) (assert (= #b1 (bvand v0 ((_ extract 1 1) (bvnot ((_ extract 3 2) (bvnot (concat (_ bv0 6) v1)))))))) (check-sat)