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https://github.com/Z3Prover/z3
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85 lines
2 KiB
C++
85 lines
2 KiB
C++
/*++
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Copyright (c) 2006 Microsoft Corporation
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Module Name:
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euf_mam.h
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Abstract:
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Matching Abstract Machine
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Author:
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Leonardo de Moura (leonardo) 2007-02-13.
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Nikolaj Bjorner (nbjorner) 2021-01-22.
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--*/
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#pragma once
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#include "ast/ast.h"
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#include "ast/euf/euf_egraph.h"
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#include <functional>
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namespace euf {
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class mam_solver {
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public:
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virtual ~mam_solver() = default;
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virtual trail_stack& get_trail() = 0;
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virtual region& get_region() = 0;
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virtual ast_manager& get_manager() = 0;
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virtual egraph& get_egraph() = 0;
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virtual bool is_relevant(euf::enode* n) const = 0;
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virtual bool resource_limits_exceeded() const = 0;
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};
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class on_binding_callback {
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public:
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virtual ~on_binding_callback() = default;
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virtual void on_binding(quantifier* q, app* pat, euf::enode* const* binding, unsigned max_generation, unsigned min_gen, unsigned max_gen) = 0;
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};
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typedef euf::enode enode;
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typedef euf::egraph egraph;
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typedef euf::enode_vector enode_vector;
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/**
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\brief Matching Abstract Machine (MAM)
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*/
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class mam {
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friend class mam_impl;
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mam() = default;
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public:
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static mam * mk(euf::mam_solver& ctx, euf::on_binding_callback& em);
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virtual ~mam() = default;
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virtual void add_pattern(quantifier * q, app * mp) = 0;
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virtual void add_node(enode * n, bool lazy) = 0;
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virtual void propagate() = 0;
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virtual bool can_propagate() const = 0;
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virtual void rematch(bool use_irrelevant = false) = 0;
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virtual void on_merge(enode * root, enode * other) = 0;
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virtual void on_match(quantifier * qa, app * pat, unsigned num_bindings, enode * const * bindings, unsigned max_generation) = 0;
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virtual void reset() = 0;
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virtual std::ostream& display(std::ostream& out) = 0;
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virtual bool check_missing_instances() = 0;
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static void ground_subterms(expr* e, ptr_vector<app>& ground);
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};
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};
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