reports all types of mistakes at once

fja_checker.py

@@ -90,10 +90,11 @@ def main():
             exit(1)
 
         result = student_dfa.is_equivalent(teacher_dfa)
-        if result and check_task(student_dfa, task):
+        if check_task(student_dfa, task) and result:
             print("Správné řešení.")
             exit(0)
-        elif not result:
+
+        if not result:
             student_word, teacher_word = result.left_counterexample, result.right_counterexample
 
             if student_word is None: