Expect Int instead of Text in node ids of SSEGraph

Following the recent change in dOSEK

src/Compare/Preprocess.hs

@@ -15,10 +15,11 @@ import           Compare.Types.Lenses
 import           Compare.SSEGraph
 import           Search.EpsilonElimination
 
-preprocess :: Graph Text SSEEdgeLabel -> Graph Text Text
+preprocess :: Graph Int SSEEdgeLabel -> Graph Text Text
 preprocess g = g & eliminateEpsilons
                  & _graph %~ (G.emap _unSSEEdgeLabel)
                  & _graph %~ (G.emap (renameIdle . renameStartOS . stripArgument))
+                 & _graph %~ (G.nmap (T.pack . show))
                  & renameIdleKickoff
 
 -- | Rename the startOSEdge from "ABBx/StartOS" to "StartOS"