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wip - adding proof checkers, fixes to quantifier proof certificates

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This commit is contained in:
Nikolaj Bjorner 2022-10-10 09:46:22 +02:00
parent 4623117af8
commit de69874076
16 changed files with 241 additions and 58 deletions
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21
src/sat/smt/euf_internalize.cpp
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@ -160,8 +160,13 @@ namespace euf {
s().set_external(v);
s().set_eliminated(v, false);
sat::literal lit2 = literal(v, false);
s().mk_clause(~lit, lit2, sat::status::th(m_is_redundant, m.get_basic_family_id()));
s().mk_clause(lit, ~lit2, sat::status::th(m_is_redundant, m.get_basic_family_id()));
th_proof_hint* ph1 = nullptr, * ph2 = nullptr;
if (use_drat()) {
ph1 = mk_smt_hint(symbol("tseitin"), ~lit, lit2);
ph2 = mk_smt_hint(symbol("tseitin"), lit, ~lit2);
}
s().mk_clause(~lit, lit2, sat::status::th(m_is_redundant, m.get_basic_family_id(), ph1));
s().mk_clause(lit, ~lit2, sat::status::th(m_is_redundant, m.get_basic_family_id(), ph2));
add_aux(~lit, lit2);
add_aux(lit, ~lit2);
lit = lit2;
@ -310,8 +315,8 @@ namespace euf {
sat::literal lit_el = mk_literal(eq_el);
add_root(~lit_c, lit_th);
add_root(lit_c, lit_el);
s().add_clause(~lit_c, lit_th, st);
s().add_clause(lit_c, lit_el, st);
s().add_clause(~lit_c, lit_th, mk_tseitin_status(~lit_c, lit_th));
s().add_clause(lit_c, lit_el, mk_tseitin_status(lit_c, lit_el));
}
}
else if (m.is_distinct(e)) {
@ -329,8 +334,8 @@ namespace euf {
sat::literal some_eq = si.internalize(fml, m_is_redundant);
add_root(~dist, ~some_eq);
add_root(dist, some_eq);
s().add_clause(~dist, ~some_eq, st);
s().add_clause(dist, some_eq, st);
s().add_clause(~dist, ~some_eq, mk_tseitin_status(~dist, ~some_eq));
s().add_clause(dist, some_eq, mk_tseitin_status(dist, some_eq));
}
else if (m.is_eq(e, th, el) && !m.is_iff(e)) {
sat::literal lit1 = expr2literal(e);
@ -341,8 +346,8 @@ namespace euf {
sat::literal lit2 = expr2literal(e2);
add_root(~lit1, lit2);
add_root(lit1, ~lit2);
s().add_clause(~lit1, lit2, st);
s().add_clause(lit1, ~lit2, st);
s().add_clause(~lit1, lit2, mk_tseitin_status(~lit1, lit2));
s().add_clause(lit1, ~lit2, mk_tseitin_status(lit1, ~lit2));
}
}
}