src/HOL/SMT/Examples/cert/z3_nlarith_01

adopting Sequences

(benchmark Isabelle
:extrafuns (
  (uf_1 Int)
  (uf_2 Int)
 )
:assumption (< 0 uf_1)
:assumption (< 0 (* uf_1 uf_2))
:assumption (not (< 0 uf_2))
:formula true
)