diff --git a/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h
new file mode 100644
index 00000000000..ea56d92bce7
--- /dev/null
+++ b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h
@@ -0,0 +1,154 @@
+// ============================================================================
+//
+// Copyright (c) 1999 The CGAL Consortium
+//
+// This software and related documentation is part of an INTERNAL release
+// of the Computational Geometry Algorithms Library (CGAL). It is not
+// intended for general use.
+//
+// ----------------------------------------------------------------------------
+//
+// release       :
+// release_date  :
+//
+// file          : include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h
+// revision      : $Revision$
+// revision_date :
+// author(s)     : Sylvain.Pion@sophia.inria.fr
+//                 Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
+//
+// coordinator   : Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
+//
+// ============================================================================
+
+#ifndef CGAL_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_FTC2_H
+#define CGAL_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_FTC2_H
+
+// This file is automatically generated by the script for filtering
+// predicates, using Interval arithmetic.
+
+// This file contains the low level cartesian predicates
+// used by the 2D regular triangulation.
+
+CGAL_BEGIN_NAMESPACE
+
+#ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
+template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
+#endif
+Oriented_side
+power_testC2( 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &px, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &py, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &pwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qy, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &rx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &ry, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &rwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &tx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &ty, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &twt)
+{
+  FPU_CW_t backup = FPU_get_cw();
+  FPU_set_cw(FPU_cw_up);
+  try
+  {
+    Oriented_side result = power_testC2(
+		px.interval(),
+		py.interval(),
+		pwt.interval(),
+		qx.interval(),
+		qy.interval(),
+		qwt.interval(),
+		rx.interval(),
+		ry.interval(),
+		rwt.interval(),
+		tx.interval(),
+		ty.interval(),
+		twt.interval());
+    FPU_set_cw(backup);
+    return result;
+  } 
+  catch (Interval_nt_advanced::unsafe_comparison)
+  {
+    FPU_set_cw(backup);
+    return power_testC2(
+		px.exact(),
+		py.exact(),
+		pwt.exact(),
+		qx.exact(),
+		qy.exact(),
+		qwt.exact(),
+		rx.exact(),
+		ry.exact(),
+		rwt.exact(),
+		tx.exact(),
+		ty.exact(),
+		twt.exact());
+  }
+}
+
+
+#ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
+template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
+#endif
+Oriented_side
+power_testC2( 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &px, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &py, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &pwt,
+	      
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qy, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qwt,
+	      
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &tx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &ty, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &twt)
+{
+  FPU_CW_t backup = FPU_get_cw();
+  FPU_set_cw(FPU_cw_up);
+  try
+  {
+    Oriented_side result = power_testC2(
+		px.interval(),
+		py.interval(),
+		pwt.interval(),
+		qx.interval(),
+		qy.interval(),
+		qwt.interval(),
+		tx.interval(),
+		ty.interval(),
+		twt.interval());
+    FPU_set_cw(backup);
+    return result;
+  } 
+  catch (Interval_nt_advanced::unsafe_comparison)
+  {
+    FPU_set_cw(backup);
+    return power_testC2(
+		px.exact(),
+		py.exact(),
+		pwt.exact(),
+		qx.exact(),
+		qy.exact(),
+		qwt.exact(),
+		tx.exact(),
+		ty.exact(),
+		twt.exact());
+  }
+}
+
+CGAL_END_NAMESPACE
+
+#ifdef CGAL_ARITHMETIC_FILTER_H
+#ifndef CGAL_ARITHMETIC_FILTER_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_FTC2_H
+#include <CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h>
+#endif // CGAL_ARITHMETIC_FILTER_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_FTC2_H
+#endif
+
+#endif // CGAL_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_FTC2_H
diff --git a/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h
new file mode 100644
index 00000000000..c25f3464f51
--- /dev/null
+++ b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h
@@ -0,0 +1,175 @@
+// ============================================================================
+//
+// Copyright (c) 1999 The CGAL Consortium
+//
+// This software and related documentation is part of an INTERNAL release
+// of the Computational Geometry Algorithms Library (CGAL). It is not
+// intended for general use.
+//
+// ----------------------------------------------------------------------------
+//
+// release       :
+// release_date  :
+//
+// file          : include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h
+// revision      : $Revision$
+// revision_date :
+// author(s)     : Sylvain.Pion@sophia.inria.fr
+//                 Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
+//
+// coordinator   : Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
+//
+// ============================================================================
+
+#ifndef CGAL_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_RTH2_H
+#define CGAL_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_RTH2_H
+
+// This file is automatically generated by the script for filtering
+// predicates, using Interval arithmetic.
+
+// This file contains the low level homogeneous predicates
+// used by the 2D regular triangulation.
+
+CGAL_BEGIN_NAMESPACE
+
+#ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
+template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
+#endif
+Oriented_side
+power_testH2( 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &px, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &py, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &pw, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &pwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qy, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qw, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &rx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &ry, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &rw, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &rwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &tx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &ty, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &tw, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &twt)
+{
+  FPU_CW_t backup = FPU_get_cw();
+  FPU_set_cw(FPU_cw_up);
+  try
+  {
+    Oriented_side result = power_testH2(
+		px.interval(),
+		py.interval(),
+		pw.interval(),
+		pwt.interval(),
+		qx.interval(),
+		qy.interval(),
+		qw.interval(),
+		qwt.interval(),
+		rx.interval(),
+		ry.interval(),
+		rw.interval(),
+		rwt.interval(),
+		tx.interval(),
+		ty.interval(),
+		tw.interval(),
+		twt.interval());
+    FPU_set_cw(backup);
+    return result;
+  } 
+  catch (Interval_nt_advanced::unsafe_comparison)
+  {
+    FPU_set_cw(backup);
+    return power_testH2(
+		px.exact(),
+		py.exact(),
+		pw.exact(),
+		pwt.exact(),
+		qx.exact(),
+		qy.exact(),
+		qw.exact(),
+		qwt.exact(),
+		rx.exact(),
+		ry.exact(),
+		rw.exact(),
+		rwt.exact(),
+		tx.exact(),
+		ty.exact(),
+		tw.exact(),
+		twt.exact());
+  }
+}
+
+
+#ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
+template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
+#endif
+Oriented_side
+power_testH2( 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &px, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &py, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &pw, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &pwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qy, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qw, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &qwt,
+              
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &tx, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &ty, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &tw, 
+    const CGAL::Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &twt)
+{
+  FPU_CW_t backup = FPU_get_cw();
+  FPU_set_cw(FPU_cw_up);
+  try
+  {
+    Oriented_side result = power_testH2(
+		px.interval(),
+		py.interval(),
+		pw.interval(),
+		pwt.interval(),
+		qx.interval(),
+		qy.interval(),
+		qw.interval(),
+		qwt.interval(),
+		tx.interval(),
+		ty.interval(),
+		tw.interval(),
+		twt.interval());
+    FPU_set_cw(backup);
+    return result;
+  } 
+  catch (Interval_nt_advanced::unsafe_comparison)
+  {
+    FPU_set_cw(backup);
+    return power_testH2(
+		px.exact(),
+		py.exact(),
+		pw.exact(),
+		pwt.exact(),
+		qx.exact(),
+		qy.exact(),
+		qw.exact(),
+		qwt.exact(),
+		tx.exact(),
+		ty.exact(),
+		tw.exact(),
+		twt.exact());
+  }
+}
+
+CGAL_END_NAMESPACE
+
+#ifdef CGAL_ARITHMETIC_FILTER_H
+#ifndef CGAL_ARITHMETIC_FILTER_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_RTH2_H
+#include <CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h>
+#endif // CGAL_ARITHMETIC_FILTER_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_RTH2_H
+#endif
+
+#endif // CGAL_ARITHMETIC_FILTER_REGULAR_TRIANGULATION_RTH2_H