mirror of
https://github.com/Z3Prover/z3
synced 2025-04-13 20:38:43 +00:00
dd1ca8f6bd
- add sat.smt option to enable the new incremental core (it is not ready for mainstream consumption as cloning and other features are not implemented and it hasn't been tested in any detail yet). - move "name" into attribute on simplifier so it can be reused for diagnostics by the seq-simplifier.
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*++
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Copyright (c) 2022 Microsoft Corporation
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Module Name:
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euf_completion.h
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Abstract:
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Ground completion for equalities
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Author:
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Nikolaj Bjorner (nbjorner) 2022-10-30
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--*/
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#pragma once
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#include "ast/simplifiers/dependent_expr_state.h"
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#include "ast/euf/euf_egraph.h"
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#include "ast/rewriter/th_rewriter.h"
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namespace euf {
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class completion : public dependent_expr_simplifier {
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struct stats {
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unsigned m_num_rewrites = 0;
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void reset() { memset(this, 0, sizeof(*this)); }
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};
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egraph m_egraph;
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enode* m_tt, *m_ff;
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ptr_vector<expr> m_todo;
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enode_vector m_args, m_reps, m_nodes_to_canonize;
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expr_ref_vector m_canonical, m_eargs;
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expr_dependency_ref_vector m_deps;
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unsigned m_epoch = 0;
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unsigned_vector m_epochs;
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th_rewriter m_rewriter;
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stats m_stats;
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bool m_has_new_eq = false;
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enode* mk_enode(expr* e);
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bool is_new_eq(expr* a, expr* b);
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void update_has_new_eq(expr* g);
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expr_ref mk_and(expr* a, expr* b);
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void add_egraph();
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void map_canonical();
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void read_egraph();
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expr_ref canonize(expr* f, expr_dependency_ref& dep);
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expr_ref canonize_fml(expr* f, expr_dependency_ref& dep);
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expr* get_canonical(expr* f, expr_dependency_ref& d);
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expr* get_canonical(enode* n);
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void set_canonical(enode* n, expr* e);
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expr_dependency* explain_eq(enode* a, enode* b);
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expr_dependency* explain_conflict();
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public:
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completion(ast_manager& m, dependent_expr_state& fmls);
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char const* name() const override { return "euf-reduce"; }
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void push() override { m_egraph.push(); dependent_expr_simplifier::push(); }
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void pop(unsigned n) override { dependent_expr_simplifier::pop(n); m_egraph.pop(n); }
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void reduce() override;
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void collect_statistics(statistics& st) const override;
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void reset_statistics() override { m_stats.reset(); }
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};
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}
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