branch on inf basic in gomory

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

src/util/lp/gomory.h

@@ -0,0 +1,46 @@
+/*++
+Copyright (c) 2017 Microsoft Corporation
+
+Module Name:
+
+    <name>
+
+Abstract:
+
+    <abstract>
+
+Author:
+    Nikolaj Bjorner (nbjorner)
+    Lev Nachmanson (levnach)
+
+Revision History:
+
+
+--*/
+#pragma once
+#include "util/lp/lar_term.h"
+#include "util/lp/lia_move.h"
+#include "util/lp/explanation.h"
+
+namespace lp {
+class gomory {
+    lar_term   &          m_t; // the term to return in the cut
+    mpq        &          m_k; // the right side of the cut
+    explanation&          m_ex; // the conflict explanation
+    bool       &          m_upper; // we have a cut m_t*x <= k if m_upper is true nad m_t*x >= k otherwise
+    unsigned              m_basic_inf_int_j; // a basis column which has to be an integer but has a not integral value
+    const row_strip<mpq>& m_row
+public :
+    gomory(lar_term   &         m_t,
+           mpq        &         m_k,
+           explanation&         m_ex,
+           bool       &         m_upper, 
+           unsigned             m_basic_inf_int_j ) :
+        m_t(t),
+        m_k(k),
+        m_ex(ex),
+        m_upper(upper), 
+        m_basic_inf_int_j(j) {
+    }
+};
+}