Z3 sources

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

lib/model2expr.h

@@ -0,0 +1,43 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    model2expr.h
+
+Abstract:
+
+    Convert model to logical formula that forces it.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2012-09-17
+
+Revision History:
+
+--*/
+#ifndef _MODEL2EXPR_H_
+#define _MODEL2EXPR_H_
+
+#include"model.h"
+
+void model2expr(model& m, expr_ref& result);
+
+inline void model2expr(model_ref& md, expr_ref& result) { model2expr(*md.get(), result); }
+
+// TODO: move
+typedef hashtable<symbol, symbol_hash_proc, symbol_eq_proc> symbol_set;
+
+class mk_fresh_name {
+    symbol_set m_symbols;
+    char       m_char;
+    unsigned   m_num;
+public:
+    mk_fresh_name(): m_char('A'), m_num(0) {}
+    void add(ast* a);
+    symbol next();
+};
+
+
+#endif /* _MODEL2EXPR_H_ */
+