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update pb rewriter to be non-full on assertions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-09-29 08:00:01 -07:00
parent 705b107846
commit da5c8c0667
1 changed files with 15 additions and 1 deletions
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16
src/ast/rewriter/pb2bv_rewriter.cpp
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@ -623,6 +623,11 @@ struct pb2bv_rewriter::imp {
}
}
bool mk_app(expr* e, expr_ref& r) {
app* a;
return (is_app(e) && (a = to_app(e), mk_app(false, a->get_decl(), a->get_num_args(), a->get_args(), r)));
}
bool is_pb(expr* x, expr* y) {
m_args.reset();
m_coeffs.reset();
@ -817,6 +822,14 @@ struct pb2bv_rewriter::imp {
void pb_num_system(bool f) { m_cfg.pb_num_system(f); }
void pb_totalizer(bool f) { m_cfg.pb_totalizer(f); }
void set_at_most1(sorting_network_encoding e) { m_cfg.set_at_most1(e); }
void rewrite(expr* e, expr_ref& r, proof_ref& p) {
expr_ref ee(e, m());
if (m_cfg.m_r.mk_app(e, r)) {
ee = r;
// mp proof?
}
(*this)(ee, r, p);
}
};
card_pb_rewriter m_rw;
@ -888,7 +901,8 @@ struct pb2bv_rewriter::imp {
unsigned get_num_steps() const { return m_rw.get_num_steps(); }
void cleanup() { m_rw.cleanup(); }
void operator()(expr * e, expr_ref & result, proof_ref & result_proof) {
m_rw(e, result, result_proof);
// m_rw(e, result, result_proof);
m_rw.rewrite(e, result, result_proof);
}
void push() {
m_fresh_lim.push_back(m_fresh.size());