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74824ac901
get_antecedent has to be well-founded. It got broken when using eval during propagation and egraph explain during conflict resolution.
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/*++
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Copyright (c) 2020 Microsoft Corporation
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Module Name:
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q_eval.h
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Abstract:
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Evaluation of clauses
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Author:
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Nikolaj Bjorner (nbjorner) 2021-01-24
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--*/
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#pragma once
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#include "ast/has_free_vars.h"
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#include "sat/smt/q_clause.h"
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namespace euf {
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class solver;
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}
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namespace q {
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class eval {
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euf::solver& ctx;
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ast_manager& m;
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expr_fast_mark1 m_mark;
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euf::enode_vector m_eval;
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euf::enode_vector m_indirect_nodes;
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bool m_freeze_swap = false;
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euf::enode_pair m_diseq_undef;
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contains_vars m_contains_vars;
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struct scoped_mark_reset;
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// compare s, t modulo binding
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lbool compare(unsigned n, euf::enode* const* binding, expr* s, expr* t, euf::enode_pair_vector& evidence);
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lbool compare_rec(unsigned n, euf::enode* const* binding, expr* s, expr* t, euf::enode_pair_vector& evidence);
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public:
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eval(euf::solver& ctx);
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lbool operator()(euf::enode* const* binding, clause& c, euf::enode_pair_vector& evidence);
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lbool operator()(euf::enode* const* binding, clause& c, unsigned& idx, euf::enode_pair_vector& evidence);
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euf::enode* operator()(unsigned n, euf::enode* const* binding, expr* e, euf::enode_pair_vector& evidence);
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euf::enode_vector const& get_watch() { return m_indirect_nodes; }
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};
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}
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