diff options
| -rw-r--r-- | backends/smt2/smtio.py | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/backends/smt2/smtio.py b/backends/smt2/smtio.py index 72bd8b178..865eed1f1 100644 --- a/backends/smt2/smtio.py +++ b/backends/smt2/smtio.py @@ -270,11 +270,17 @@ class SmtIo: if self.solver != "dummy": if self.noincr: + if self.p is not None and not stmt.startswith("(get-"): + self.p.stdin.close() + self.p = None if stmt == "(push 1)": self.smt2cache.append(list()) elif stmt == "(pop 1)": self.smt2cache.pop() else: + if self.p is not None: + self.p.stdin.write(bytes(stmt + "\n", "ascii")) + self.p.stdin.flush() self.smt2cache[-1].append(stmt) else: self.p.stdin.write(bytes(stmt + "\n", "ascii")) @@ -394,6 +400,7 @@ class SmtIo: if self.noincr: if self.p is not None: self.p.stdin.close() + self.p = None self.p = subprocess.Popen(self.popen_vargs, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) for cache_ctx in self.smt2cache: for cache_stmt in cache_ctx: @@ -598,7 +605,7 @@ class SmtIo: return [self.bv2bin(v) for v in self.get_net_list(mod_name, net_path_list, state_name)] def wait(self): - if self.solver != "dummy": + if self.p is not None: self.p.wait() |