diff options
| author | Tianyi Liang <tianyi-liang@uiowa.edu> | 2014-01-29 10:32:17 -0600 |
|---|---|---|
| committer | Tianyi Liang <tianyi-liang@uiowa.edu> | 2014-01-29 10:32:17 -0600 |
| commit | 8c4a79a1dfc47572e81506cc1de9372370199f74 (patch) | |
| tree | 61ed1305e95a65f8add66aa50d22681e6dbf8d45 /src/theory/strings/theory_strings.cpp | |
| parent | 6b2b7c90c9dccb596181fcf399a8830b05db5408 (diff) | |
add prefixof, suffixof
Diffstat (limited to 'src/theory/strings/theory_strings.cpp')
| -rw-r--r-- | src/theory/strings/theory_strings.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/theory/strings/theory_strings.cpp b/src/theory/strings/theory_strings.cpp index 0a8781abb..3209a92ec 100644 --- a/src/theory/strings/theory_strings.cpp +++ b/src/theory/strings/theory_strings.cpp @@ -1758,8 +1758,9 @@ bool TheoryStrings::checkSimple() { Node t1greq0 = NodeManager::currentNM()->mkNode( kind::GEQ, n[1], d_zero); Node x_eq_123 = n[0].eqNode( NodeManager::currentNM()->mkNode( kind::STRING_CONCAT, sk1, sk, sk3 ) ); Node len_sk1_eq_i = n[1].eqNode( NodeManager::currentNM()->mkNode( kind::STRING_LENGTH, sk1 ) ); + Node cond = Rewriter::rewrite( NodeManager::currentNM()->mkNode( kind::AND, lenxgti, t1greq0 )); Node lemma = NodeManager::currentNM()->mkNode( kind::AND, x_eq_123, len_sk1_eq_i ); - lemma = Rewriter::rewrite( NodeManager::currentNM()->mkNode( kind::IMPLIES, lenxgti, lemma ) ); + lemma = Rewriter::rewrite( NodeManager::currentNM()->mkNode( kind::IMPLIES, cond, lemma ) ); Trace("strings-lemma") << "Strings::Lemma CHARAT : " << lemma << std::endl; d_out->lemma(lemma); } else if( n.getKind() == kind::STRING_SUBSTR ) { @@ -1776,7 +1777,7 @@ bool TheoryStrings::checkSimple() { NodeManager::currentNM()->mkNode( kind::STRING_LENGTH, sk1 ) ); Node lemma = NodeManager::currentNM()->mkNode( kind::AND, x_eq_123, len_sk1_eq_i ); - Node cond = NodeManager::currentNM()->mkNode( kind::AND, lenxgti, t1geq0, t2geq0 ); + Node cond = Rewriter::rewrite( NodeManager::currentNM()->mkNode( kind::AND, lenxgti, t1geq0, t2geq0 )); lemma = Rewriter::rewrite( NodeManager::currentNM()->mkNode( kind::IMPLIES, cond, lemma ) ); Trace("strings-lemma") << "Strings::Lemma SUBSTR : " << lemma << std::endl; d_out->lemma(lemma); |