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finally!

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-12-12 10:26:54 -08:00
parent f1d46b58a4
commit 7bf76dd1f6
5 changed files with 30 additions and 23 deletions
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8
src/math/dd/dd_pdd.cpp
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@ -173,7 +173,7 @@ namespace dd {
std::sort(s.begin(), s.end(), compare_level);
pdd r(one());
for (auto const& q : s)
r = (r*mk_var(q.first)) + q.second;
r = (r * mk_var(q.first)) + q.second;
return pdd(apply(p.root, r.root, pdd_subst_val_op), this);
}
@ -218,6 +218,7 @@ namespace dd {
if (is_val(p) && is_val(q)) return imk_val(val(p) - val(q));
if (m_semantics != mod2_e) break;
op = pdd_add_op;
Z3_fallthrough;
case pdd_add_op:
if (is_zero(p)) return q;
if (is_zero(q)) return p;
@ -346,7 +347,8 @@ namespace dd {
push(make_node(level_p, lo(n), read(1)));
r = make_node(level_p, bd, read(1));
npop = 7;
} else {
}
else {
push(make_node(level_p, n, ac));
r = make_node(level_p, bd, read(1));
npop = 6;
@ -942,6 +944,8 @@ namespace dd {
* b := b1*v^m + b2
* l >= m
* q, r := quot_rem(a1, b1)
* that is:
* q * b1 + r = a1
* r = 0
* result := reduce(v, q*b2*v^{l-m}, b) + reduce(v, a2, b)
*/