aboutsummaryrefslogtreecommitdiffstats
path: root/backends/smt2
diff options
context:
space:
mode:
authorClifford Wolf <clifford@clifford.at>2016-09-18 00:48:36 +0200
committerClifford Wolf <clifford@clifford.at>2016-09-18 00:48:36 +0200
commit7bc88e81010d5e641a55da9fb99724a90a2a4efa (patch)
treed0d1f5f65be62968c7762e9ae8ea74872d0402cd /backends/smt2
parentd39db41df87113792c383fc2f127a3d42ae6dd0e (diff)
downloadyosys-7bc88e81010d5e641a55da9fb99724a90a2a4efa.tar.gz
yosys-7bc88e81010d5e641a55da9fb99724a90a2a4efa.tar.bz2
yosys-7bc88e81010d5e641a55da9fb99724a90a2a4efa.zip
yosys-smtbmc: added -i support smtc files
Diffstat (limited to 'backends/smt2')
-rw-r--r--backends/smt2/smtbmc.py39
1 files changed, 19 insertions, 20 deletions
diff --git a/backends/smt2/smtbmc.py b/backends/smt2/smtbmc.py
index fa4966089..a9c4061ce 100644
--- a/backends/smt2/smtbmc.py
+++ b/backends/smt2/smtbmc.py
@@ -136,11 +136,6 @@ if len(args) != 1:
usage()
-if tempind and len(inconstr) != 0:
- print("Error: options -i and --smtc are exclusive.")
- sys.exit(1)
-
-
constr_final_start = None
constr_asserts = defaultdict(list)
constr_assumes = defaultdict(list)
@@ -163,7 +158,8 @@ for fn in inconstr:
if tokens[0] == "initial":
current_states = set()
- current_states.add(0)
+ if not tempind:
+ current_states.add(0)
continue
if tokens[0] == "final":
@@ -182,20 +178,21 @@ for fn in inconstr:
if tokens[0] == "state":
current_states = set()
- for token in tokens[1:]:
- tok = token.split(":")
- if len(tok) == 1:
- current_states.add(int(token))
- elif len(tok) == 2:
- lower = int(tok[0])
- if tok[1] == "*":
- upper = num_steps
+ if not tempind:
+ for token in tokens[1:]:
+ tok = token.split(":")
+ if len(tok) == 1:
+ current_states.add(int(token))
+ elif len(tok) == 2:
+ lower = int(tok[0])
+ if tok[1] == "*":
+ upper = num_steps
+ else:
+ upper = int(tok[1])
+ for i in range(lower, upper+1):
+ current_states.add(i)
else:
- upper = int(tok[1])
- for i in range(lower, upper+1):
- current_states.add(i)
- else:
- assert 0
+ assert 0
continue
if tokens[0] == "always":
@@ -522,13 +519,15 @@ if tempind:
smt.write("(assert (|%s_u| s%d))" % (topmod, step))
smt.write("(assert (|%s_h| s%d))" % (topmod, step))
smt.write("(assert (not (|%s_is| s%d)))" % (topmod, step))
+ smt.write("(assert %s)" % get_constr_expr(constr_assumes, step))
if step == num_steps:
- smt.write("(assert (not (|%s_a| s%d)))" % (topmod, step))
+ smt.write("(assert (not (and (|%s_a| s%d) %s)))" % (topmod, step, get_constr_expr(constr_asserts, step)))
else:
smt.write("(assert (|%s_t| s%d s%d))" % (topmod, step, step+1))
smt.write("(assert (|%s_a| s%d))" % (topmod, step))
+ smt.write("(assert %s)" % get_constr_expr(constr_asserts, step))
if step > num_steps-skip_steps:
print_msg("Skipping induction in step %d.." % (step))