anchor.diff:  ets_var(8) -> '$8';
   ets_var(9) -> '$9';
   ets_var(10) -> '$10';
  -ets_var(11) -> '$11'.
  +ets_var(11) -> '$11';
  +ets_var(12) -> '$12';
  +ets_var(13) -> '$13';
  +ets_var(14) -> '$14';
  +ets_var(15) -> '$15';
  +ets_var(16) -> '$16'. 
  
positive.code: 	Key -> keys_loop(Tab, Key, KeyVar, Next, Cps, Bs, Vn, Db)
      end.
  
  %% match_2(Goal, Next, ChoicePoints, Bindings, VarNum, Database) -> void().
  %%      Goal = {ets_match,Table,Pattern}.
  %% Match objects in an ETS database one at a time over backtracking
  %% using Pattern in goal. Variables in Pattern are bound for each
  %% object matched.
  
negative.code: %% Copyright (c) 2008-2014 Robert Virding
  %%
  %% Licensed under the Apache License, Version 2.0 (the "License");
  %% you may not use this file except in compliance with the License.
  