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fix bug in offset for shift amount for free bindings

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-03-05 15:25:14 -08:00
parent 5c276d8bf1
commit aa1ddd169a
1 changed files with 6 additions and 4 deletions
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10
src/ast/rewriter/rewriter_def.h
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@ -30,6 +30,7 @@ void rewriter_tpl<Config>::process_var(var * v) {
m_pr = 0;
}
set_new_child_flag(v);
TRACE("rewriter", tout << mk_ismt2_pp(v, m()) << " -> " << m_r << "\n";);
m_r = 0;
return;
}
@ -41,17 +42,18 @@ void rewriter_tpl<Config>::process_var(var * v) {
expr * r = m_bindings[index];
if (r != 0) {
SASSERT(v->get_sort() == m().get_sort(r));
if (!is_ground(r) && m_shifts[index] != UINT_MAX) {
if (!is_ground(r) && m_shifts[index] != m_bindings.size()) {
unsigned shift_amount = m_bindings.size() - m_shifts[index];
expr_ref tmp(m());
m_shifter(r, shift_amount, tmp);
result_stack().push_back(tmp);
TRACE("process_var", tout << "shift: " << shift_amount << " idx: " << idx << " --> " << tmp << "\n";
TRACE("rewriter", tout << "shift: " << shift_amount << " idx: " << idx << " --> " << tmp << "\n";
display_bindings(tout););
}
else {
result_stack().push_back(r);
TRACE("rewriter", tout << idx << " " << mk_ismt2_pp(r, m()) << "\n";);
}
set_new_child_flag(v);
return;
@ -572,7 +574,7 @@ void rewriter_tpl<Config>::set_bindings(unsigned num_bindings, expr * const * bi
while (i > 0) {
--i;
m_bindings.push_back(bindings[i]);
m_shifts.push_back(UINT_MAX);
m_shifts.push_back(num_bindings);
}
TRACE("rewriter", display_bindings(tout););
}
@ -585,7 +587,7 @@ void rewriter_tpl<Config>::set_inv_bindings(unsigned num_bindings, expr * const
m_shifts.reset();
for (unsigned i = 0; i < num_bindings; i++) {
m_bindings.push_back(bindings[i]);
m_shifts.push_back(UINT_MAX);
m_shifts.push_back(num_bindings);
}
TRACE("rewriter", display_bindings(tout););
}