left.writeElement(NodeId.fromInt(3), 1L, 0L);
left.writeElement(NodeId.fromInt(4), 1L, 0L);
left.writeElement(NodeId.fromInt(9), 1L, 0L);
right = ContextState.allocate(3, 0);
right.writeElement(NodeId.fromInt(2), 1L, 0L);
right.writeElement(NodeId.fromInt(6), 1L, 0L);
right.writeElement(NodeId.fromInt(12), 1L, 0L);
assert ContextRelationship.DISJOINT ==
cc.diff(left.context, right.context);