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-rw-r--r--backends/smt2/smtio.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/backends/smt2/smtio.py b/backends/smt2/smtio.py
index 3559781ec..f7b2ec647 100644
--- a/backends/smt2/smtio.py
+++ b/backends/smt2/smtio.py
@@ -704,7 +704,9 @@ class SmtIo:
if msg is not None:
print("%s waiting for solver (%s)" % (self.timestamp(), msg), flush=True)
- result = self.read()
+ result = ""
+ while result not in ["sat", "unsat", "unknown"]:
+ result = self.read()
if self.debug_file:
print("(set-info :status %s)" % result, file=self.debug_file)