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Added yosys-smtbmc

This commit is contained in:
Clifford Wolf 2015-10-14 00:37:41 +02:00
parent 7bcd2a4bb3
commit 821f1b8534
2 changed files with 20 additions and 1 deletions
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14
backends/smt2/Makefile.inc
View File

@ -1,3 +1,17 @@
OBJS += backends/smt2/smt2.o OBJS += backends/smt2/smt2.o
ifneq ($(CONFIG),mxe)
ifneq ($(CONFIG),emcc)
TARGETS += yosys-smtbmc
yosys-smtbmc:
$(P) sed '3 { p; s|.*|sys.path += [os.path.dirname(__file__) + p for p in ["/share/python3", "/../share/yosys/python3"]]|; }' \
< backends/smt2/smtbmc.py > yosys-smtbmc.new
$(Q) chmod +x yosys-smtbmc.new
$(Q) mv yosys-smtbmc.new yosys-smtbmc
$(eval $(call add_share_file,share/python3,backends/smt2/smtio.py))
endif
endif

7
backends/smt2/smtbmc.py
View File

@ -13,13 +13,15 @@ so = smtopts()
def usage(): def usage():
print(""" print("""
python3 smtbmc.py [options] <yosys_smt2_output> yosys-smtbmc [options] <yosys_smt2_output>
-t <max_steps> -t <max_steps>
default: 20 default: 20
-c <vcd_filename> -c <vcd_filename>
write counter-example to this VCD file write counter-example to this VCD file
(hint: use 'write_smt2 -wires' for maximum
coverage of signals in generated VCD file)
-i <min_steps> -i <min_steps>
instead of BMC run temporal induction instead of BMC run temporal induction
@ -43,6 +45,8 @@ for o, a in opts:
elif o == "-i": elif o == "-i":
tempind = True tempind = True
min_steps = int(a) min_steps = int(a)
elif o == "-m":
topmod = a
elif so.handle(o, a): elif so.handle(o, a):
pass pass
else: else:
@ -112,6 +116,7 @@ if tempind:
print("%s PASSED." % smt.timestamp()) print("%s PASSED." % smt.timestamp())
break break
else: # not tempind else: # not tempind
for step in range(max_steps+1): for step in range(max_steps+1):
smt.write("(declare-fun s%d () %s_s)" % (step, topmod)) smt.write("(declare-fun s%d () %s_s)" % (step, topmod))