mv util/lp to math/lp

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

src/math/lp/nla_solver.cpp

@@ -0,0 +1,61 @@
+/*++
+  Copyright (c) 2017 Microsoft Corporation
+
+  Module Name:
+
+  <name>
+
+  Abstract:
+
+  <abstract>
+
+  Author:
+  Nikolaj Bjorner (nbjorner)
+  Lev Nachmanson (levnach)
+
+  Revision History:
+
+
+  --*/
+#include "math/lp/nla_solver.h"
+#include <map>
+#include "math/lp/monomial.h"
+#include "math/lp/lp_utils.h"
+#include "math/lp/var_eqs.h"
+#include "math/lp/factorization.h"
+#include "math/lp/nla_solver.h"
+namespace nla {
+
+// returns the monomial index
+void solver::add_monomial(lpvar v, unsigned sz, lpvar const* vs) {
+    m_core->add(v, sz, vs);
+}
+
+bool solver::need_check() { return true; }
+
+lbool solver::check(vector<lemma>& l) {
+    return m_core->check(l);
+}
+
+void solver::push(){
+    m_core->push();
+}
+
+void solver::pop(unsigned n) {
+    m_core->pop(n);
+}
+
+    std::ostream& solver::display(std::ostream& out) {
+        return m_core->print_monomials(out);
+    }
+
+        
+solver::solver(lp::lar_solver& s) {
+    m_core = alloc(core, s);
+}
+
+solver::~solver() {
+    dealloc(m_core);
+}
+
+}