anchor.diff:              call init_system(sys)
               call init_model_basis_fns(sys)
               call init_generic_system_basis(sys)
  +            call init_real_space(sys)
           end if
   
           call warn_unused_args(lua_state, keys, opts)
  
positive.code:             call init_system(sys)
              call read_in_integrals(sys, cas_info=sys%cas)
              call init_generic_system_basis(sys)
          end if
  
          call warn_unused_args(lua_state, keys, opts)
  
negative.code:             call init_system(sys)
              call init_model_basis_fns(sys)
              call init_generic_system_basis(sys)
              call init_real_space(sys)
          end if
  
          call warn_unused_args(lua_state, keys, opts)
  