diff --git a/src/main/kotlin/automaton/constructor/model/automaton/AbstractAutomaton.kt b/src/main/kotlin/automaton/constructor/model/automaton/AbstractAutomaton.kt
index c7e91a3..561f6ff 100644
--- a/src/main/kotlin/automaton/constructor/model/automaton/AbstractAutomaton.kt
+++ b/src/main/kotlin/automaton/constructor/model/automaton/AbstractAutomaton.kt
@@ -245,7 +245,7 @@ abstract class AbstractAutomaton(
         clearExecutionStatesInternal(mutableSetOf())
     }
 
-    private fun clearExecutionStatesInternal(visited: MutableSet<Automaton>) {
+    protected fun clearExecutionStatesInternal(visited: MutableSet<Automaton>) {
         if (!visited.add(this)) return
         vertices.forEach { v ->
             v.executionStates.clear()
@@ -253,6 +253,8 @@ abstract class AbstractAutomaton(
         }
     }
 
+    internal fun clearExecutionStatesFromOutside(visited: MutableSet<Automaton>) = clearExecutionStatesInternal(visited)
+
     protected open fun clearNestedAutomaton(vertex: AutomatonVertex, visited: MutableSet<Automaton>) {
         if (vertex is BuildingBlock) {
             val sub = vertex.subAutomaton
diff --git a/src/main/kotlin/automaton/constructor/model/automaton/recursive/RecursiveAutomaton.kt b/src/main/kotlin/automaton/constructor/model/automaton/recursive/RecursiveAutomaton.kt
index 247f2b6..37679a4 100644
--- a/src/main/kotlin/automaton/constructor/model/automaton/recursive/RecursiveAutomaton.kt
+++ b/src/main/kotlin/automaton/constructor/model/automaton/recursive/RecursiveAutomaton.kt
@@ -199,7 +199,7 @@ class RecursiveAutomaton(
     override fun clearNestedAutomaton(vertex: AutomatonVertex, visited: MutableSet<Automaton>) {
         if (vertex is RecursiveAutomatonBox) {
             val sub = vertex.subAutomaton
-            if (sub !== this) (sub as? AbstractAutomaton)?.clearExecutionStates()
+            if (sub !== this) (sub as? AbstractAutomaton)?.clearExecutionStatesFromOutside(visited)
         }
     }