anchor.diff:          Fail -> Fail
       end.
   
  --spec increment_iter(string(), integer(), non_neg_integer()) -> any().
  +-spec increment_iter(string(), integer(), non_neg_integer()) -> non_neg_integer().
   increment_iter(_Key, 0, Aborts) ->
       Aborts;
   increment_iter(Key, Iterations, Aborts) ->
  
positive.code:         {fail, not_found} ->
              timer:sleep(randoms:rand_uniform(1, erlang:max(2, 10 * Aborts + 1))),
              increment_with_histo_iter(H, Key, Iterations, Aborts + 1);
          X -> log:log(warn, "~p", [X])
      end.
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
negative.code: %  @copyright 2008-2015 Zuse Institute Berlin
  
  %   Licensed under the Apache License, Version 2.0 (the "License");
  %   you may not use this file except in compliance with the License.
  