diff options
Diffstat (limited to 'src/prop')
| -rw-r--r-- | src/prop/cnf_stream.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/prop/cnf_stream.cpp b/src/prop/cnf_stream.cpp index 9b0c4847b..9797e4c67 100644 --- a/src/prop/cnf_stream.cpp +++ b/src/prop/cnf_stream.cpp @@ -146,7 +146,7 @@ SatLiteral CnfStream::convertAtom(TNode node) { Assert(!isTranslated(node), "atom already mapped!"); - bool theoryLiteral = node.getKind() != kind::VARIABLE; + bool theoryLiteral = node.getKind() != kind::VARIABLE && !node.getType().isPseudoboolean(); SatLiteral lit = newLiteral(node, theoryLiteral); if(node.getKind() == kind::CONST_BOOLEAN) { @@ -396,9 +396,8 @@ SatLiteral TseitinCnfStream::toCNF(TNode node, bool negated) { break; case EQUAL: if(node[0].getType().isBoolean()) { - // should have an IFF instead - Unreachable("= Bool Bool shouldn't be possible ?!"); - //nodeLit = handleIff(node[0].iffNode(node[1])); + // normally this is an IFF, but EQUAL is possible with pseudobooleans + nodeLit = handleIff(node[0].iffNode(node[1])); } else { nodeLit = convertAtom(node); } |