anchor.diff:  run_range(Index, Start, End) ->
       run_range(Index, Start, End, []).
   
  -run_range(Index, Start, End, Results) when Start =< End ->
  +run_range(Index, Start, End, Results) when Start < End ->
       Result = erl_ip_index:lookup_subnet_nif(Index, Start, 32),
       run_range(Index, Start+1, End, [Result | Results]);
   run_range(_, _, _, Results) ->
  
positive.code: -module(erl_ip_index_debug).
  
  -export([
      test_range_results/6,
      now_diff_us/1,
      rebuild_bert/4,
      build_full_index/3,
      build_full_lists/2,
      benchmark/5
  ]).
  
  test_range_results(BertFile, BlacklistFile, OutputFile, Threshold, Start, End) ->
      Index = build_full_index(BertFile, BlacklistFile, Threshold),
  
negative.code: 
  build_full_index(BertFile, BlacklistFile, Threshold) ->
      Lists = build_full_lists(BertFile, BlacklistFile),
      erl_ip_index:async_build_index(Lists, Threshold).
  
  build_full_lists(BertFile, BlacklistFile) ->
      BlacklistedLists = build_blacklisted_lists(BlacklistFile),
  