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#5604

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retain array interpretation when available
This commit is contained in:
Nikolaj Bjorner 2021-10-17 20:24:12 -07:00
parent 115203e87c
commit bc2020a39b
2 changed files with 62 additions and 53 deletions
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16
src/model/func_interp.cpp
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@ -280,6 +280,9 @@ void func_interp::compress() {
}
// other compression, if else is a default branch.
// or function encode identity.
#if 0
// breaks array interpretations
// #5604
if (m().is_false(m_else)) {
expr_ref new_else(get_interp(), m());
for (func_entry * curr : m_entries) {
@ -291,7 +294,9 @@ void func_interp::compress() {
m().dec_ref(m_else);
m_else = new_else;
}
else if (!m_entries.empty() && is_identity()) {
else
#endif
if (!m_entries.empty() && is_identity()) {
for (func_entry * curr : m_entries) {
curr->deallocate(m(), m_arity);
}
@ -335,14 +340,11 @@ expr * func_interp::get_interp_core() const {
expr * r = m_else;
ptr_buffer<expr> vars;
for (func_entry * curr : m_entries) {
if (m_else == curr->get_result()) {
if (m_else == curr->get_result())
continue;
}
if (vars.empty()) {
for (unsigned i = 0; i < m_arity; i++) {
if (vars.empty())
for (unsigned i = 0; i < m_arity; i++)
vars.push_back(m().mk_var(i, curr->get_arg(i)->get_sort()));
}
}
ptr_buffer<expr> eqs;
for (unsigned i = 0; i < m_arity; i++) {
eqs.push_back(m().mk_eq(vars[i], curr->get_arg(i)));