diff --git a/src/TODO-trampolines.txt b/src/TODO-trampolines.txt
index 06a961b..2c8de51 100644
--- a/src/TODO-trampolines.txt
+++ b/src/TODO-trampolines.txt
@@ -1,15 +1,10 @@
 2  iterateTermOther 		arachne.c +1053 ; system.c +1155
 1  subtermUnify 		arachne.c +961
-1  term_iterate_open_leaves 	dotout.c +1790 		// Could be replaced by term_iterate_leaves
 3  unify 			mgu.c +233 ; mgu.c +247 ; mgu.c +281
 
-term_iterate_leaves
-  term_iterate_state_leaves
-
 dependencies:
 
 iterateTermOther is called using makeDepend and addOther
 subtermUnify is called using unifiesWithKeys
-term_iterate_open_leaves is called using addsubterms
 unify is called using unify_combine_enc and unify_combined_tup, and a callback using the keys list? (which propagates back to subtermunify data)
 
diff --git a/src/dotout.c b/src/dotout.c
index b30b34c..b7e0ad7 100644
--- a/src/dotout.c
+++ b/src/dotout.c
@@ -1669,6 +1669,11 @@ drawIntruderRuns (const System sys)
     }
 }
 
+struct state_dss
+{
+  Termlist found;
+};
+
 //! Display the current semistate using dot output format.
 /**
  * This is not as nice as we would like it. Furthermore, the function is too big.
@@ -1777,9 +1782,10 @@ dotSemiState (const System mysys)
      */
     Termlist found;
     List bl;
+    struct state_dss Sdss;
 
     // collect the intruder-generated constants
-    found = NULL;
+    Sdss.found = NULL;
     for (bl = sys->bindings; bl != NULL; bl = bl->next)
       {
 	Binding b;
@@ -1787,21 +1793,21 @@ dotSemiState (const System mysys)
 	b = (Binding) bl->data;
 	if (!b->blocked)
 	  {
-	    int addsubterms (Term t)
+	    int addsubterms (Term t, struct state_dss *sdss)
 	    {
 	      if (isIntruderChoice (t))
 		{
-		  found = termlistAddNew (found, t);
+		  sdss->found = termlistAddNew (sdss->found, t);
 		}
 	      return true;
 	    }
 
-	    term_iterate_open_leaves (b->term, addsubterms);
+	    term_iterate_state_open_leaves (b->term, addsubterms, &Sdss);
 	  }
       }
 
     // now maybe we draw the node
-    if ((from_intruder_count > 0) || (found != NULL))
+    if ((from_intruder_count > 0) || (Sdss.found != NULL))
       {
 	eprintf ("\tintruder [\n");
 	eprintf ("\t\tlabel=\"");
@@ -1810,14 +1816,14 @@ dotSemiState (const System mysys)
 	  {
 	    eprintf ("\\n");
 	    eprintf ("The intruder generates: ");
-	    termlistPrintRemap (found, ", ");
+	    termlistPrintRemap (Sdss.found, ", ");
 	  }
 	eprintf ("\",\n");
 	eprintf ("\t\tstyle=filled,fillcolor=\"");
 	printColor (INTRUDERCOLORH, INTRUDERCOLORL, INTRUDERCOLORS);
 	eprintf ("\"\n\t];\n");
       }
-    termlistDelete (found);
+    termlistDelete (Sdss.found);
   }
 
   // eprintf ("\t};\n");
diff --git a/src/term.c b/src/term.c
index c7e09fb..ac63010 100644
--- a/src/term.c
+++ b/src/term.c
@@ -1148,7 +1148,7 @@ term_iterate_state_leaves (const Term term, int (*func) (), void (*state))
  * well. It is up to func to decide wether or not to recurse.
  */
 int
-term_iterate_open_leaves (const Term term, int (*func) (Term t))
+term_iterate_state_open_leaves (const Term term, int (*func) (), void *state)
 {
   if (term != NULL)
     {
@@ -1156,21 +1156,26 @@ term_iterate_open_leaves (const Term term, int (*func) (Term t))
 	{
 	  if (substVar (term))
 	    {
-	      return term_iterate_open_leaves (term->subst, func);
+	      return term_iterate_state_open_leaves (term->subst, func,
+						     state);
 	    }
 	  else
 	    {
-	      return func (term);
+	      return func (term, state);
 	    }
 	}
       else
 	{
 	  if (realTermTuple (term))
-	    return (term_iterate_open_leaves (TermOp1 (term), func)
-		    && term_iterate_open_leaves (TermOp2 (term), func));
+	    return (term_iterate_state_open_leaves
+		    (TermOp1 (term), func, state)
+		    && term_iterate_state_open_leaves (TermOp2 (term), func,
+						       state));
 	  else
-	    return (term_iterate_open_leaves (TermOp (term), func)
-		    && term_iterate_open_leaves (TermKey (term), func));
+	    return (term_iterate_state_open_leaves
+		    (TermOp (term), func, state)
+		    && term_iterate_state_open_leaves (TermKey (term), func,
+						       state));
 	}
     }
   return 1;
diff --git a/src/term.h b/src/term.h
index 6d0f53c..f9d014f 100644
--- a/src/term.h
+++ b/src/term.h
@@ -196,11 +196,10 @@ int term_iterate (const Term term, int (*leaf) (Term t),
 		  int (*noder) (Term t));
 int term_iterate_state_deVar (Term term, int (*leaf) (),
 			      int (*nodel) (),
-			      int (*nodem) (),
-			      int (*noder) (), void (*state));
-int term_iterate_state_leaves (const Term term,
-			       int (*func) (), void (*state));
-int term_iterate_open_leaves (const Term term, int (*func) (Term t));
+			      int (*nodem) (), int (*noder) (), void *state);
+int term_iterate_state_leaves (const Term term, int (*func) (), void *state);
+int term_iterate_state_open_leaves (const Term term, int (*func) (),
+				    void *state);
 void term_rolelocals_are_variables ();
 int term_encryption_level (const Term term);
 float term_constrain_level (const Term term);