src/HOL/SMT/Examples/cert/z3_prop_04

code cache without copy; tuned

(benchmark Isabelle
:extrasorts ( T1)
:extrapreds (
  (up_1)
  (up_2)
 )
:assumption (and (or up_1 up_2) (not up_1))
:assumption (not up_2)
:formula true
)