mirror of
https://github.com/Z3Prover/z3
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95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
/*++
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Copyright (c) 2022 Microsoft Corporation
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Module Name:
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bv_theory_checker.h
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Abstract:
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Plugin for bitvector lemmas
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Author:
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Nikolaj Bjorner (nbjorner) 2022-08-28
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Notes:
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--*/
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#pragma once
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#include "util/obj_pair_set.h"
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#include "ast/ast_trail.h"
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#include "ast/ast_util.h"
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#include "ast/bv_decl_plugin.h"
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#include "sat/smt/euf_proof_checker.h"
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#include <iostream>
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namespace bv {
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class theory_checker : public euf::theory_checker_plugin {
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ast_manager& m;
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bv_util bv;
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symbol m_eq2bit = symbol("eq2bit");
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symbol m_ne2bit = symbol("ne2bit");
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symbol m_bit2eq = symbol("bit2eq");
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symbol m_bit2ne = symbol("bit2ne");
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symbol m_bv2int = symbol("bv2int");
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symbol m_bv = symbol("bv");
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bool check_bv(app* jst);
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bool check_bit2eq(app* jst);
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bool check_bit2ne(app* jst);
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bool check_eq2bit(app* jst);
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bool check_ne2bit(app* jst);
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bool check_bv2int(app* jst);
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public:
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theory_checker(ast_manager& m):
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m(m),
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bv(m) {}
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bool check(app* jst) override {
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if (jst->get_name() == m_bv)
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return check_bv(jst);
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if (jst->get_name() == m_eq2bit)
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return check_eq2bit(jst);
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if (jst->get_name() == m_ne2bit)
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return check_ne2bit(jst);
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if (jst->get_name() == m_bit2eq)
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return check_bit2eq(jst);
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if (jst->get_name() == m_bit2ne)
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return check_bit2ne(jst);
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if (jst->get_name() == m_bv2int)
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return check_bv2int(jst);
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return false;
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}
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expr_ref_vector clause(app* jst) override {
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expr_ref_vector result(m);
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if (jst->get_name() == m_bv) {
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for (expr* arg : *jst)
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result.push_back(mk_not(m, arg));
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}
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else {
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for (expr* arg : *jst)
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result.push_back(arg);
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}
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return result;
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}
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void register_plugins(euf::theory_checker& pc) override {
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pc.register_plugin(m_bv, this);
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pc.register_plugin(m_bit2eq, this);
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pc.register_plugin(m_bit2ne, this);
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pc.register_plugin(m_eq2bit, this);
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pc.register_plugin(m_ne2bit, this);
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pc.register_plugin(m_bv2int, this);
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}
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};
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}
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