add var_register

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fill the matrix A in hnf_cutter

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fill the matrix A in hnf_cutter

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

first steps of hnf cutter

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

handle generated cases in hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

call hnf only for a full rank matrix

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

get (H reversed) * b

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

finding the cut row randomly, exiting if is not there

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

produce first cuts with hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

produce first cuts with hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

define by lp_settings if to avoid calling hnf_cutter when the solution is not on the boundary

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

hnf

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

revert to the previous version

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

src/util/lp/lia_move.h

@@ -0,0 +1,31 @@
+/*++
+Copyright (c) 2017 Microsoft Corporation
+
+Module Name:
+
+    <name>
+
+Abstract:
+
+    <abstract>
+
+Author:
+    Nikolaj Bjorner (nbjorner)
+    Lev Nachmanson (levnach)
+
+Revision History:
+
+
+--*/
+#pragma once
+namespace lp {
+enum class lia_move {
+    sat,
+    branch,
+    cut,
+    conflict,
+    continue_with_check,
+    undef,
+    unsat
+};
+}