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tune seq rewriting

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-06-09 13:30:39 -07:00
parent 08cc5bc2e5
commit 4fdfc65b37
3 changed files with 93 additions and 40 deletions
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4
src/ast/seq_decl_plugin.cpp
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@ -1185,6 +1185,10 @@ app* seq_util::mk_le(expr* ch1, expr* ch2) const {
expr* es[2] = { ch1, ch2 };
return m.mk_app(m_fid, OP_CHAR_LE, 2, es);
#else
rational r1, r2;
if (bv().is_numeral(ch1, r1) && bv().is_numeral(ch2, r2)) {
return m.mk_bool_val(r1 <= r2);
}
return bv().mk_ule(ch1, ch2);
#endif
}