diff --git a/alib2algo/src/automaton/run/Occurrences.cpp b/alib2algo/src/automaton/run/Occurrences.cpp
index f04cb5d000ebe73a868f961931dec6c6cb9955e3..6e92814c32346571efe6f3771fe43ef32089f983 100644
--- a/alib2algo/src/automaton/run/Occurrences.cpp
+++ b/alib2algo/src/automaton/run/Occurrences.cpp
@@ -34,8 +34,11 @@ std::set<unsigned> Occurrences::occurrences(const automaton::DFA& automaton, con
 
 		auto transitions = automaton.getTransitionsFromState(state);
 		auto next = transitions.find(std::make_pair(state, symbol));
-		if(next == transitions.end()) return {};
-		state = next->second;
+		if(next == transitions.end()) { //makes sence to reset the automaton when there is "unknown" symbol on the input
+			state = automaton.getInitialState();
+		} else {
+			state = next->second;
+		}
 
 		i++;
 	}
diff --git a/examples2/string/astringology.test5.pattern.xml b/examples2/string/astringology.test5.pattern.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e1b055355a674f0594ef7d03d31678ff380365e4
--- /dev/null
+++ b/examples2/string/astringology.test5.pattern.xml
@@ -0,0 +1 @@
+<LinearString><alphabet><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol></alphabet><content><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol></content></LinearString>
diff --git a/examples2/string/astringology.test5.subject.xml b/examples2/string/astringology.test5.subject.xml
new file mode 100644
index 0000000000000000000000000000000000000000..bad6d6704acbc3a0597472a92c882a5e2f8dc773
--- /dev/null
+++ b/examples2/string/astringology.test5.subject.xml
@@ -0,0 +1 @@
+<LinearString><alphabet><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol></alphabet><content><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>a</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>b</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol><LabeledSymbol><PrimitiveLabel><Character>c</Character></PrimitiveLabel></LabeledSymbol></content></LinearString>