anchor.diff:  		 [{_, SnapshotDict}] ->
   		     case vector_orddict:get_smaller(MinSnapshotTime, SnapshotDict) of
   			 {undefined, _IsF} ->
  -			     io:format("could not find a smaller ss ~w, ~w~n", [dict:to_list(MinSnapshotTime), SnapshotDict]),
   			     {error, no_snapshot};
   			 {{SCT, LS},IsF}->
   			     {LS,SCT,IsF}
  
positive.code: %% Number of snapshots to keep after GC
  -define(SNAPSHOT_MIN, 3).
  %% Number of ops to keep before GC
  -define(OPS_THRESHOLD, 25).
  %% The first 3 elements in operations list are meta-data
  %% First is the key
  %% Second is a tuple {current op list size, max op list size}
  
negative.code: 
  %% API
  -export([start_vnode/1,
  	 check_tables_ready/0,
           read/7,
  	 get_cache_name/2,
  	 store_ss/3,
           update/2,
  	 belongs_to_snapshot_op/3]).
  
  %% Callbacks
  -export([init/1,
  