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435ea6ea99
* very basic setup * ensure solve_eqs is fully disabled when smt.solve_eqs=false, #7743 Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * respect smt configuration parameter in elim_unconstrained simplifier Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * indentation * add bash files for test runs * add option to selectively disable variable solving for only ground expressions Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * remove verbose output Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * fix #7745 axioms for len(substr(...)) escaped due to nested rewriting * ensure atomic constraints are processed by arithmetic solver * #7739 optimization add simplification rule for at(x, offset) = "" Introducing j just postpones some rewrites that prevent useful simplifications. Z3 already uses common sub-expressions. The example highlights some opportunities for simplification, noteworthy at(..) = "". The example is solved in both versions after adding this simplification. * fix unsound len(substr) axiom Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * FreshConst is_sort (#7748) * #7750 add pre-processing simplification * Add parameter validation for selected API functions * updates to ac-plugin fix incrementality bugs by allowing destructive updates during saturation at the cost of redoing saturation after a pop. * enable passive, add check for bloom up-to-date * add top-k fixed-sized min-heap priority queue for top scoring literals --------- Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com> Co-authored-by: humnrdble <83878671+humnrdble@users.noreply.github.com>
61 lines
1.2 KiB
C++
61 lines
1.2 KiB
C++
/*++
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Copyright (c) 2023 Microsoft Corporation
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Module Name:
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euf_arith_plugin.h
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Abstract:
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plugin structure for arithmetic
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Author:
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Nikolaj Bjorner (nbjorner) 2023-11-11
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--*/
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#pragma once
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#include "ast/arith_decl_plugin.h"
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#include "ast/euf/euf_plugin.h"
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#include "ast/euf/euf_ac_plugin.h"
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namespace euf {
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class egraph;
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class arith_plugin : public plugin {
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enum undo_t { undo_add, undo_mul };
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arith_util a;
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svector<undo_t> m_undo;
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ac_plugin m_add, m_mul;
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public:
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arith_plugin(egraph& g);
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theory_id get_id() const override { return a.get_family_id(); }
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void register_node(enode* n) override;
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void merge_eh(enode* n1, enode* n2) override;
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void diseq_eh(enode* eq) override {}
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void undo() override;
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void push_scope_eh() override {
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m_add.push_scope_eh();
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m_mul.push_scope_eh();
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}
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void propagate() override;
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std::ostream& display(std::ostream& out) const override;
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void collect_statistics(statistics& st) const override {
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m_add.collect_statistics(st);
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m_mul.collect_statistics(st);
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}
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};
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}
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