q

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/sat/smt/q_mbi.h

@@ -0,0 +1,56 @@
+/*++
+Copyright (c) 2020 Microsoft Corporation
+
+Module Name:
+
+    q_mbi.h
+
+Abstract:
+
+    Model-based quantifier instantiation plugin
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2020-09-29
+
+--*/
+#pragma once
+
+#include "sat/smt/sat_th.h"
+#include "solver/solver.h"
+
+namespace euf {
+    class solver;
+}
+
+namespace q {
+
+    class solver;
+
+    class mbqi {
+        euf::solver&                           ctx;
+        solver&                                qs;
+        ast_manager&                           m;
+        model_ref                              m_model;
+        ref<::solver>                          m_solver;
+        obj_map<sort, obj_hashtable<expr>*>    m_fresh;
+        scoped_ptr_vector<obj_hashtable<expr>> m_values;
+
+        void restrict_to_universe(expr * sk, ptr_vector<expr> const & universe);
+        void register_value(expr* e);
+        expr_ref replace_model_value(expr* e);
+        lbool check_forall(quantifier* q);
+        expr_ref specialize(quantifier* q, expr_ref_vector& vars);
+        expr_ref project(model& mdl, quantifier* q, expr_ref_vector& vars);
+        expr_ref basic_project(model& mdl, quantifier* q, expr_ref_vector& vars);
+        void init_model();
+        void init_solver();
+
+    public:
+
+        mbqi(euf::solver& ctx, solver& s);
+            
+        lbool operator()();
+    };
+
+}