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model generation with strings

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-01-13 10:39:38 +01:00
parent 9909c056f0
commit 57e1d4dc1f
2 changed files with 13 additions and 3 deletions
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8
src/smt/theory_seq.cpp
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@ -1325,7 +1325,10 @@ model_value_proc * theory_seq::mk_value(enode * n, model_generator & mg) {
if (concats.size() > 1) {
for (unsigned i = 0; i < concats.size(); ++i) {
sv->add_dependency(ctx.get_enode(concats[i]));
expr* e = concats[i];
if (!m_util.str.is_string(e)) {
sv->add_dependency(ctx.get_enode(e));
}
}
}
else if (m_util.str.is_unit(e, e1)) {
@ -1361,7 +1364,8 @@ app* theory_seq::mk_value(app* e) {
unsigned sz;
if (bv.is_numeral(result, val, sz) && sz == zstring().num_bits()) {
unsigned v = val.get_unsigned();
if ((v < 7) || (14 <= v && v < 32) || v == 127) {
if (false && ((v < 7) || (14 <= v && v < 32) || v == 127)) {
// disabled: use escape characters.
result = m_util.str.mk_unit(result);
}
else {