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fixes in new solver

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fix logging and lemma signs in arith_solver, move logging of drat equalities to euf
This commit is contained in:
Nikolaj Bjorner 2020-12-16 10:40:17 -08:00
parent 26b4ab20db
commit 11477f1ed1
6 changed files with 58 additions and 34 deletions
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27
src/sat/smt/euf_proof.cpp
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@ -126,5 +126,32 @@ namespace euf {
}
}
void solver::log_justification(literal l, th_propagation const& jst) {
literal_vector lits;
for (auto lit : euf::th_propagation::lits(jst))
lits.push_back(~lit);
lits.push_back(l);
unsigned nv = s().num_vars();
expr_ref_vector eqs(m);
for (auto eq : euf::th_propagation::eqs(jst)) {
++nv;
literal lit(nv, false);
eqs.push_back(m.mk_eq(eq.first->get_expr(), eq.second->get_expr()));
drat_eq_def(lit, eqs.back());
lits.push_back(lit);
}
get_drat().add(lits, sat::status::th(m_is_redundant, jst.ext().get_id()));
}
void solver::drat_eq_def(literal lit, expr* eq) {
expr *a = nullptr, *b = nullptr;
VERIFY(m.is_eq(eq, a, b));
get_drat().def_begin('e', eq->get_id(), std::string("="));
get_drat().def_add_arg(a->get_id());
get_drat().def_add_arg(b->get_id());
get_drat().def_end();
get_drat().bool_def(lit.var(), eq->get_id());
}
}