initial stab at new bv-sls based on repair actions

src/ast/sls/bv_sls_fixed.h

@@ -0,0 +1,52 @@
+/*++
+Copyright (c) 2024 Microsoft Corporation
+
+Module Name:
+
+    bv_sls_fixed.h
+
+Abstract:
+
+    Initialize fixed information.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2024-02-07
+    
+--*/
+#pragma once
+
+#include "ast/ast.h"
+#include "ast/sls/sls_valuation.h"
+#include "ast/bv_decl_plugin.h"
+
+namespace bv {
+
+    class sls_eval;
+    
+    class sls_fixed {
+        sls_eval&           ev;
+        ast_manager&        m;
+        bv_util&            bv;
+
+        void init_ranges(expr_ref_vector const& es);
+        void init_range(app* e, bool sign);
+        void init_range(expr* x, rational const& a, expr* y, rational const& b, bool sign);
+        void get_offset(expr* e, expr*& x, rational& offset);
+
+        void init_fixed_basic(app* e);
+        void init_fixed_bv(app* e);
+
+        bool is_fixed1(app* e) const;
+        bool is_fixed1_basic(app* e) const;
+        void set_fixed_bw(app* e);
+
+        sls_valuation& wval0(expr* e);
+
+    public:
+        sls_fixed(sls_eval& ev);
+
+        void init(expr_ref_vector const& es);
+
+    };
+}