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-rw-r--r--backends/smt2/smt2.cc6
1 files changed, 4 insertions, 2 deletions
diff --git a/backends/smt2/smt2.cc b/backends/smt2/smt2.cc
index 9bf0de03e..a3628197e 100644
--- a/backends/smt2/smt2.cc
+++ b/backends/smt2/smt2.cc
@@ -1185,10 +1185,12 @@ struct Smt2Worker
data = stringf("(bvor (bvand %s %s) (bvand (select (|%s#%d#%d| state) %s) (bvnot %s)))",
data.c_str(), mask.c_str(), get_id(module), arrayid, i, addr.c_str(), mask.c_str());
+ string empty_mask(mem->width, '0');
+
decls.push_back(stringf("(define-fun |%s#%d#%d| ((state |%s_s|)) (Array (_ BitVec %d) (_ BitVec %d)) "
- "(store (|%s#%d#%d| state) %s %s)) ; %s\n",
+ "(ite (= %s #b%s) (|%s#%d#%d| state) (store (|%s#%d#%d| state) %s %s))) ; %s\n",
get_id(module), arrayid, i+1, get_id(module), abits, mem->width,
- get_id(module), arrayid, i, addr.c_str(), data.c_str(), get_id(mem->memid)));
+ mask.c_str(), empty_mask.c_str(), get_id(module), arrayid, i, get_id(module), arrayid, i, addr.c_str(), data.c_str(), get_id(mem->memid)));
}
}