def test_simplify():
spec = get_def()
syn_exp = SyExp("and", [SyExp("LN231", []), SyExp("LN218", [])])
overall = SyExp("eqv", [spec, syn_exp])
print("overall:", overall)
x = overall.simplify_bdd()
print("after simplify:", x)
def test_simplify_bdd():
x = SyExp("x", [])
y = SyExp("y", [])
e1 = SyExp("or", [x, y])
e2 = SyExp("and", [SyExp("x", []), SyExp("d1", [])])
e3 = SyExp("eqv", [e1, e2])
print("before e3: ", e3.show2(0))
e4 = e3.simplify_bdd()
print("after e3: ", e4.show2(0))
def __init__(self, spec, syn_exp):
assert isinstance(spec, SyExp)
assert isinstance(syn_exp, SyExp)
self.spec = spec
self.syn_exp = syn_exp
#self.spec_tseitin_cnf = None
#self.syn_exp_tseitin_cnf = None
eqv = SyExp("eqv", [self.spec, self.syn_exp])
self.overall_exp = eqv.simplify_bdd()
self.overall_cnf = TseitinCNF(self.overall_exp, 1)
def __init__(self, spec, partial_tree):
# extract forall vars (assume all of which are in spec)
vnames = spec.get_vars()
# print("vnames:", vnames)
ptree = deepcopy(partial_tree)
ptree, sid = rename_nonT(ptree)
eqv = SyExp("eqv", [spec, ptree])
eqv = eqv.simplify_bdd()
# print("eqv:", eqv.show2(0))
# get cnf
t = TseitinCNF(eqv)
n2v = t.get_name2var()
# print("names:", n2v)
self.v_forall = [n2v[name] for name in vnames]
cnf = t.cnfs
cnf.append( [t.get_overall_id()] )
self.cnf = cnf