Z3 sources

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

lib/smt_arith.h

@@ -0,0 +1,56 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    smt_arith.h
+
+Abstract:
+
+    Arithmetic solver for smt::solver
+    
+Author:
+
+    Leonardo de Moura (leonardo) 2011-06-25.
+
+Revision History:
+
+--*/
+#ifndef _SMT_ARITH_H_
+#define _SMT_ARITH_H_
+
+#include"ast.h"
+#include"smt_solver_types.h"
+#include"params.h"
+#include"statistics.h"
+class model;
+
+namespace smt {
+
+    class arith {
+        struct imp;
+        imp *       m_imp;
+        params_ref  m_params;  
+    public:
+        arith(ast_manager & m, params_ref const & p);
+        ~arith();
+        void updt_params(params_ref const & p);
+        void assert_axiom(expr * t, bool neg);
+        void mk_atom(expr * t, atom_id id);
+        void asserted(atom_id id, bool is_true);
+        bool inconsistent() const;
+        void push();
+        void pop(unsigned num_scopes);
+        void set_cancel(bool f);
+        void simplify();
+        void display(std::ostream & out) const;
+        void reset();
+        void preprocess();
+        void collect_statistics(statistics & st) const;
+        void reset_statistics();
+        lbool check();
+        void mk_model(model * md);
+    };
+};
+
+#endif