Goal:
    z : Z  z0 : Z  H : (z <= z0)%Z  H0 : (z0 <= z)%Z
  ============================
   (Some z = Some z0)


DEBUG:Going to execute:
idtac
DEBUG LTAC Evaluated term: false
Level 2: Zify.zify_convert_to_euclidean_division_equations_flag
 has value 
false