Z3 sources

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

lib/recover_01_tactic.h

@@ -0,0 +1,42 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    recover_01_tactic.h
+
+Abstract:
+
+    Recover 01 variables
+
+    Search for clauses of the form
+    p  or q or  x = 0
+    ~p or q or  x = k1
+    p  or ~q or x = k2
+    ~p or ~q or x = k1+k2
+
+    Then, replaces 
+    x with k1*y1 + k2*y2
+    p with y1=1
+    q with y2=1
+    where y1 and y2 are fresh 01 variables
+
+    The clauses are also removed.
+
+Author:
+
+    Leonardo de Moura (leonardo) 2012-02-17.
+
+Revision History:
+
+--*/
+#ifndef _RECOVER_01_TACTIC_H_
+#define _RECOVER_01_TACTIC_H_
+
+#include"params.h"
+class ast_manager;
+class tactic;
+
+tactic * mk_recover_01_tactic(ast_manager & m, params_ref const & p = params_ref());
+
+#endif