anchor.diff:     
       %%Time1 = time(),
       %% get file status change info.
  -    {FilesDeleted, FilesChanged, NewFiles} = get_file_status_info(Files, Tabs),
  +    {FilesDeleted, FilesChanged, NewFiles} = get_file_status_info(Files, Tabs,Thresholds),
       
       %% remove information related to files that no longer exist from ets tables.
       remove_old_file_entries(FilesDeleted, Tabs),
  
positive.code: %% 
  -module(refac_inc_sim_code).
  
  -export([inc_sim_code_detection/8]).
  
  -include("../include/wrangler.hrl").
  
  %% default threshold values.
  -define(DefaultSimiScore, 0.8).
  -define(DEFAULT_LEN, 5).
  -define(DEFAULT_TOKS, 20).
  -define(DEFAULT_FREQ, 2).
  -define(DEFAULT_SIMI_SCORE, 0.8).
  -define(DEFAULT_NEW_VARS, 3).
  
negative.code: 		SubAUBody = lists:sublist(AUBody, 1, length(AUBody) - 1),
  		Res=unification:expr_unification(SubAUBody, Exprs),
  		case Res of 
  		    false -> 
  			?wrangler_io("\n not same length\n",[]),
  			?wrangler_io(" Case1:\n",[]),
  			?wrangler_io("\nAUBody:\n",[]),
  			?wrangler_io("~s", [refac_prettypr:format(refac_syntax:block_expr(AUBody))]),
  			?wrangler_io("\nExprs:\n",[]),		   
  			?wrangler_io("~s", [refac_prettypr:format(refac_syntax:block_expr(Exprs))]),
  			Res;
  		    _ -> Res
  		end;
  