def walk_not(self, formula, args, **kwargs):
z3term = z3.Z3_mk_not(self.ctx.ref(), args[0])
z3.Z3_inc_ref(self.ctx.ref(), z3term)
return z3term
def __neg__(self):
v = self.val
ctx = v.ctx
return Z3BoolRef(z3.BoolRef(z3.Z3_mk_not(ctx.ref(), v.as_ast()), ctx))