def empty_edge(self, rel_lit, head, tail):
g = self
fmla = [~lit for lit in head.fmla] + [
~substitute_lit(lit, {'X': Variable('Y')}) for lit in tail.fmla
] + [~rel_lit]
# print "adding clause: %s" % fmla
self.add_constraints([fmla])
def get_lit_facts(h, lit, res):
vs, rows = h.check(lit)
## print "rows = {}".format(rows)
for r in rows:
## print "r = {}".format(r)
subst = dict(zip([v.rep for v in vs], r))
## print "subst = {}".format(subst)
res += [substitute_lit(lit, subst)]
def get_lit_facts(h, lit, res):
vs, rows = h.check(lit)
## print "rows = {}".format(rows)
for r in rows:
## print "r = {}".format(r)
subst = dict(zip([v.rep for v in vs], r))
## print "subst = {}".format(subst)
res += [substitute_lit(lit, subst)]
def get_definite_facts(self, names, tvals):
edges = self.get_edges()
return [[
substitute_lit(
Literal(1 if status == 'true' else 0, self.rel_lit.atom),
{'X': get_witness(p1)})
] for (p1, ), status in edges
if status != 'undef' and status in tvals and p1.name in names]
def check_edge(self,f1,solver):
x = var_to_skolem('__',Variable('X',self.sorts[0])).suffix(str(self.sorts[0]))
solver.push()
s_add(solver,cube_to_z3(substitute_clause(f1,{'X':x})))
# print "xsort: {}, ysort: {}".format(x.get_sort(),y.get_sort())
# print "rel_lit: {}, subs: {}".format(self.rel_lit,substitute_lit(self.rel_lit,{'X':x,'Y':y}))
res = s_check_cube(solver,[substitute_lit(self.rel_lit,{'X':x})])
solver.pop()
return res
def check_edge(self, f1, solver):
x = var_to_skolem('__',
Variable('X',
self.sorts[0])).suffix(str(self.sorts[0]))
solver.push()
s_add(solver, cube_to_z3(substitute_clause(f1, {'X': x})))
# print "xsort: {}, ysort: {}".format(x.get_sort(),y.get_sort())
# print "rel_lit: {}, subs: {}".format(self.rel_lit,substitute_lit(self.rel_lit,{'X':x,'Y':y}))
res = s_check_cube(solver, [substitute_lit(self.rel_lit, {'X': x})])
solver.pop()
return res
def make_lit_label(lit):
# pred = lit.atom.relname
# if pred != "=":
# label = pred
# else:
# terms = lit.atom.args
# arg = 1 if isinstance(terms[0],Variable) else 0
# label = "=" + lit.atom.args[arg].rep
for v in used_variables_ast(lit):
return repr(substitute_lit(lit,{v.rep:Variable('',v.sort)})).replace(' ','').replace('()','')
label = str(lit.atom)
return label if lit.polarity == 1 else "~" + label
def make_lit_label(lit):
# pred = lit.atom.relname
# if pred != "=":
# label = pred
# else:
# terms = lit.atom.args
# arg = 1 if isinstance(terms[0],Variable) else 0
# label = "=" + lit.atom.args[arg].rep
for v in used_variables_ast(lit):
return repr(substitute_lit(lit,
{v.rep: Variable('', v.sort)})).replace(
' ', '').replace('()', '')
label = str(lit.atom)
return label if lit.polarity == 1 else "~" + label
def empty_edge(self,rel_lit,head,tail):
g = self
fmla = [~lit for lit in head.fmla] + [~substitute_lit(lit,{'X':Variable('Y')}) for lit in tail.fmla] + [~rel_lit]
# print "adding clause: %s" % fmla
self.add_constraints([fmla])
def apply_edge_rel(rel_lit,arg1,arg2):
return substitute_lit(rel_lit,{'X':arg1,'Y':arg2})
def test_lit(self,param,status):
return substitute_lit(self.status_lit(status),{'X':param})
def get_definite_facts(self,names,tvals):
edges = self.get_edges()
return [[substitute_lit(Literal(1 if status =='true' else 0,self.rel_lit.atom),
{'X':get_witness(p1)})]
for (p1,),status in edges
if status != 'undef' and status in tvals and p1.name in names]
def apply_edge_rel(rel_lit, arg1, arg2):
return substitute_lit(rel_lit, {'X': arg1, 'Y': arg2})
def test_lit(self, param, status):
return substitute_lit(self.status_lit(status), {'X': param})