--- /dev/null
+/* Copyright (c) 2015 Regents of the University of California
+ *
+ * Author: Brian Demsky <bdemsky@uci.edu>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef SOLVER_INTERFACE_H
+#define SOLVER_INTERFACE_H
+
+#define IS_OUT_FD 3
+
+#define IS_UNSAT 0
+#define IS_SAT 1
+#define IS_INDETER 2
+#define IS_FREEZE 3
+#define IS_RUNSOLVER 4
+
+#define IS_BUFFERSIZE 1024
+
+#endif