mirror of
https://github.com/Z3Prover/z3
synced 2025-04-10 03:07:07 +00:00
ac1552d194
move self-checking functionality to inside sat/smt so it can be used on-line and not just off-line. when self-validation fails, use vs, not clause, to check. It allows self-validation without checking and maintaining RUP validation. new options sat.smt.proof.check_rup, sat.smt.proof.check for online validation. z3 sat.smt.proof.check=true sat.euf=true /v:1 sat.smt.proof.check_rup=true /st file.smt2 sat.smt.proof=p.smt2
75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/*++
|
|
Copyright (c) 2022 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
tseitin_proof_checker.h
|
|
|
|
Abstract:
|
|
|
|
Plugin for checking quantifier instantiations
|
|
|
|
Author:
|
|
|
|
Nikolaj Bjorner (nbjorner) 2022-10-07
|
|
|
|
|
|
--*/
|
|
#pragma once
|
|
|
|
#include "util/obj_pair_set.h"
|
|
#include "ast/ast_trail.h"
|
|
#include "ast/ast_util.h"
|
|
#include "sat/smt/euf_proof_checker.h"
|
|
#include <iostream>
|
|
|
|
namespace tseitin {
|
|
|
|
class theory_checker : public euf::theory_checker_plugin {
|
|
ast_manager& m;
|
|
|
|
expr_fast_mark1 m_mark;
|
|
expr_fast_mark2 m_nmark;
|
|
bool equiv(expr* a, expr* b);
|
|
|
|
void mark(expr* a) { m_mark.mark(a); }
|
|
bool is_marked(expr* a) { return m_mark.is_marked(a); }
|
|
|
|
void nmark(expr* a) { m_nmark.mark(a); }
|
|
bool is_nmarked(expr* a) { return m_nmark.is_marked(a); }
|
|
|
|
void complement_mark(expr* a) {
|
|
m_mark.mark(a);
|
|
if (m.is_not(a, a))
|
|
m_nmark.mark(a);
|
|
}
|
|
|
|
bool is_complement(expr* a) {
|
|
if (m.is_not(a, a))
|
|
return is_marked(a);
|
|
else
|
|
return is_nmarked(a);
|
|
}
|
|
|
|
struct scoped_mark {
|
|
theory_checker& pc;
|
|
scoped_mark(theory_checker& pc): pc(pc) {}
|
|
~scoped_mark() { pc.m_mark.reset(); pc.m_nmark.reset(); }
|
|
};
|
|
public:
|
|
theory_checker(ast_manager& m):
|
|
m(m) {
|
|
}
|
|
|
|
expr_ref_vector clause(app* jst) override;
|
|
|
|
bool check(app* jst) override;
|
|
|
|
void register_plugins(euf::theory_checker& pc) override {
|
|
pc.register_plugin(symbol("tseitin"), this);
|
|
}
|
|
|
|
};
|
|
|
|
}
|