working on cardinality tactic

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/tactic/arith/lia2card_tactic.h

@@ -0,0 +1,33 @@
+/*++
+Copyright (c) 2013 Microsoft Corporation
+
+Module Name:
+
+    lia2card_tactic.h
+
+Abstract:
+
+    Extract 0-1 integer variables used in 
+    cardinality constraints and replace them by Booleans.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2013-11-5
+
+Notes:
+
+--*/
+#ifndef _LIA2CARD_TACTIC_H_
+#define _LIA2CARD_TACTIC_H_
+
+#include"params.h"
+class ast_manager;
+class tactic;
+
+tactic * mk_lia2card_tactic(ast_manager & m, params_ref const & p = params_ref());
+
+/*
+    ADD_TACTIC("lia2card", "introduce cardinality constraints from 0-1 integer.", "mk_lia2card_tactic(m, p)")
+*/
+
+#endif