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Minor improvements in yosys-smtbmc

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This commit is contained in:
Clifford Wolf 2016-09-24 20:40:22 +02:00
parent 8f5bf6de32
commit 34e2fb594d
2 changed files with 50 additions and 10 deletions
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22
backends/smt2/smtbmc.py
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@ -146,6 +146,7 @@ if len(args) != 1:
constr_final_start = None
constr_asserts = defaultdict(list)
constr_assumes = defaultdict(list)
constr_write = list()
for fn in inconstr:
current_states = None
@ -229,6 +230,14 @@ for fn in inconstr:
continue
if tokens[0] == "write":
constr_write.append(" ".join(tokens[1:]))
continue
if tokens[0] == "logic":
so.logic = " ".join(tokens[1:])
continue
assert 0
@ -280,6 +289,9 @@ def get_constr_expr(db, state, final=False, getvalues=False):
smt = SmtIo(opts=so)
if noinfo and vcdfile is None and vlogtbfile is None and outconstr is None:
smt.produce_models = False
def print_msg(msg):
print("%s %s" % (smt.timestamp(), msg))
sys.stdout.flush()
@ -290,6 +302,9 @@ with open(args[0], "r") as f:
for line in f:
smt.write(line)
for line in constr_write:
smt.write(line)
if topmod is None:
topmod = smt.topmod
@ -625,9 +640,10 @@ else: # not tempind
smt.write("(pop 1)")
for i in range(step, last_check_step+1):
smt.write("(assert (|%s_a| s%d))" % (topmod, i))
smt.write("(assert %s)" % get_constr_expr(constr_asserts, i))
if (constr_final_start is not None) or (last_check_step+1 != num_steps):
for i in range(step, last_check_step+1):
smt.write("(assert (|%s_a| s%d))" % (topmod, i))
smt.write("(assert %s)" % get_constr_expr(constr_asserts, i))
if constr_final_start is not None:
for i in range(step, last_check_step+1):