--- a/graphics.sty	Mon Sep 29 00:45:38 2014 +0100
+++ b/graphics.sty	Sun Oct 05 23:56:18 2014 +0100
@@ -2,6 +2,7 @@
 \usepackage{pgf}
 \usetikzlibrary{positioning}
 \usetikzlibrary{calc}
+\usetikzlibrary{automata}
 \usepackage{graphicx} 
 \usepackage{pgfplots}