1
(benchmark Isabelle
2
:extrasorts ( T1)
3
:extrapreds (
4
(up_1)
5
(up_2)
6
(up_3)
7
(up_4)
8
)
9
:assumption (or (and up_1 up_2) (and up_3 up_4))
10
:assumption (not (or (and up_1 up_2) (and up_3 up_4)))
11
:formula true
12