anchor.diff:                  end,
                   _ = cleanup(SetupState),
                   %% Process is leaking? This log line can be removed after fix.
  -                ?V("process_count=~w~n", [erlang:system_info(process_count)]),
  +                [?V("process_count=~w~n", [erlang:system_info(process_count)]) || Verbose],
                   pretty_commands(
                     ?MODULE, Cmds, {Seq, Par, Res},
                     aggregate(with_title(cmds), command_names(Cmds),
  
positive.code: 
  %% append
  
  append_args(#state{cr_list=CRList}=S) ->
      [elements(CRList), chunk(), S].
  
  append({_SimSelfName, C}, Bin, #state{verbose=V}=S) ->
      Prefix = <<"pre">>,
      Len = byte_size(Bin),
      Res = (catch machi_cr_client:append_chunk(C, Prefix, Bin, {sec(1), sec(1)})),
  
negative.code:               end || {_, #p_srvr{name=Name}=P} <- Dict],
      %% CR clients are pooled, each has "name" which is interpreted "From"
      %% side of simulated partition.
      SimSelfNames = lists:append(lists:duplicate(cr_count(Num), FLUNames)),
      CRList = [begin
                    {ok, C} = machi_cr_client:start_link(
                                [P || {_, P} <- Dict],
  