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-rw-r--r--backends/aiger/xaiger.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc
index a4ef89931..bad9322bb 100644
--- a/backends/aiger/xaiger.cc
+++ b/backends/aiger/xaiger.cc
@@ -229,7 +229,7 @@ struct XAigerWriter
}
if (is_output) {
SigBit O = sigmap(b);
- if (!input_bits.count(O) && !output_bits.count(O))
+ if (!input_bits.count(O))
ci_bits.insert(O);
}
}