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Add RUP checking mode to proof checker.

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This commit is contained in:
Nikolaj Bjorner 2022-08-30 09:45:19 -07:00
parent 8cb118235a
commit 0f475f45b5
3 changed files with 63 additions and 19 deletions
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62
src/cmd_context/extra_cmds/proof_cmds.cpp
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@ -25,8 +25,8 @@ Notes:
#include "ast/ast_util.h"
#include "cmd_context/cmd_context.h"
#include "smt/smt_solver.h"
// include "sat/sat_solver.h"
// include "sat/sat_drat.h"
#include "sat/sat_solver.h"
#include "sat/sat_drat.h"
#include "sat/smt/euf_proof_checker.h"
#include <iostream>
@ -37,31 +37,68 @@ class smt_checker {
scoped_ptr<solver> m_solver;
#if 0
sat::solver sat_solver;
symbol m_rup;
sat::solver m_sat_solver;
sat::drat m_drat;
sat::literal_vector m_units;
sat::literal_vector m_drup_units;
sat::literal_vector m_clause;
void add_units() {
auto const& units = m_drat.units();
for (unsigned i = m_units.size(); i < units.size(); ++i)
m_units.push_back(units[i].first);
}
#endif
public:
smt_checker(ast_manager& m):
m(m),
m_checker(m)
// sat_solver(m_params, m.limit()),
// m_drat(sat_solver)
m_checker(m),
m_sat_solver(m_params, m.limit()),
m_drat(m_sat_solver)
{
m_params.set_bool("drat.check_unsat", true);
m_sat_solver.updt_params(m_params);
m_drat.updt_config();
m_solver = mk_smt_solver(m, m_params, symbol());
m_rup = symbol("rup");
}
bool is_rup(expr* proof_hint) {
return
proof_hint &&
is_app(proof_hint) &&
to_app(proof_hint)->get_name() == m_rup;
}
void mk_clause(expr_ref_vector const& clause) {
m_clause.reset();
for (expr* e : clause) {
bool sign = false;
while (m.is_not(e, e))
sign = !sign;
m_clause.push_back(sat::literal(e->get_id(), sign));
}
}
bool check_rup(expr_ref_vector const& clause) {
add_units();
mk_clause(clause);
return m_drat.is_drup(m_clause.size(), m_clause.data(), m_units);
}
void add_clause(expr_ref_vector const& clause) {
mk_clause(clause);
m_drat.add(m_clause, sat::status::input());
}
void check(expr_ref_vector const& clause, expr* proof_hint) {
if (is_rup(proof_hint) && check_rup(clause)) {
std::cout << "(verified-rup)\n";
return;
}
if (m_checker.check(clause, proof_hint)) {
if (is_app(proof_hint))
std::cout << "(verified-" << to_app(proof_hint)->get_name() << ")\n";
@ -90,15 +127,16 @@ public:
}
void assume(expr_ref_vector const& clause) {
add_clause(clause);
m_solver->assert_expr(mk_or(clause));
}
};
class proof_cmds_imp : public proof_cmds {
ast_manager& m;
ast_manager& m;
expr_ref_vector m_lits;
expr_ref m_proof_hint;
smt_checker m_checker;
expr_ref m_proof_hint;
smt_checker m_checker;
public:
proof_cmds_imp(ast_manager& m): m(m), m_lits(m), m_proof_hint(m), m_checker(m) {}