def get_facts(self, rels, definite=True):
clauses = []
if not definite:
clauses += [[~lit for lit in n.fmla] for n in self.all_nodes
if n.status == "false"]
clauses += [
rela_fact(1, equals, n, n) for n in self.all_nodes
if (n.status != "false" and not n.summary and not any(
is_equality_lit(lit) for lit in n.fmla))
]
for n in self.all_nodes:
if n.status == 'true':
wit = get_witness(n)
if wit != None:
fmla = substitute_clause(n.fmla, {'X': (wit)})
clauses += [[lit] for lit in fmla
if not is_taut_equality_lit(lit)]
names = set(
n.name for n in self.all_nodes
if (n.status == "true" if definite else n.status != "false"))
for (r, tvals) in rels:
if tvals:
clauses += r.get_definite_facts(
names, tvals) if definite else r.get_facts(names, tvals)
return clauses
def get_facts(self,rels,definite=True):
clauses = []
if not definite:
clauses += [[~lit for lit in n.fmla] for n in self.all_nodes if n.status == "false"]
clauses += [rela_fact(1,equals,n,n)
for n in self.all_nodes
if (n.status != "false" and not n.summary and not any(is_equality_lit(lit) for lit in n.fmla))]
for n in self.all_nodes:
if n.status == 'true':
wit = get_witness(n)
if wit != None:
fmla = substitute_clause(n.fmla,{'X':(wit)})
clauses += [[lit] for lit in fmla if not is_taut_equality_lit(lit)]
names = set(n.name for n in self.all_nodes if (n.status == "true" if definite else n.status != "false"))
for (r,tvals) in rels:
if tvals:
clauses += r.get_definite_facts(names,tvals) if definite else r.get_facts(names,tvals)
return clauses
def add_witness_constraint(self,node,nc):
g = self
fmla = substitute_clause(node.fmla,{'X':nc})
self.add_constraints([[lit]
for lit in fmla if not is_taut_equality_lit(lit)],False)
def add_witness_constraint(self, node, nc):
g = self
fmla = substitute_clause(node.fmla, {'X': nc})
self.add_constraints(
[[lit] for lit in fmla if not is_taut_equality_lit(lit)], False)
