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fixes to cuts

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-02-21 18:06:51 -08:00
parent 7d8b56027f
commit dcd4fff284
18 changed files with 75 additions and 50 deletions
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13
src/math/subpaving/tactic/expr2subpaving.cpp
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@ -147,19 +147,20 @@ struct expr2subpaving::imp {
// Put t as a^k.
void as_power(expr * t, expr * & a, unsigned & k) {
if (!m_autil.is_power(t)) {
expr* p = nullptr;
if (!m_autil.is_power(t, a, p)) {
a = t;
k = 1;
return;
}
rational _k;
if (!m_autil.is_numeral(to_app(t)->get_arg(1), _k) || !_k.is_int() || !_k.is_unsigned()) {
if (m_autil.is_numeral(p, _k) && _k.is_unsigned() && !_k.is_zero()) {
k = _k.get_unsigned();
}
else {
a = t;
k = 1;
return;
}
a = to_app(t)->get_arg(0);
k = _k.get_unsigned();
}
subpaving::var process_mul(app * t, unsigned depth, mpz & n, mpz & d) {
@ -168,7 +169,7 @@ struct expr2subpaving::imp {
found_non_simplified();
rational k;
expr * m;
if (m_autil.is_numeral(t->get_arg(0), k)) {
if (m_autil.is_numeral(t->get_arg(0), k) && !k.is_zero()) {
if (num_args != 2)
found_non_simplified();
qm().set(n, k.to_mpq().numerator());