all_nodes = rspec_get_nodes_from_network(rspec_string, network)
sliver_nodes = rspec_get_sliver_nodes_from_network(rspec_string, network)
available_nodes = filter(lambda x:x not in sliver_nodes, all_nodes)
for node in sliver_nodes:
all_nodes = rspec_get_nodes_from_network(rspec_string, network)
sliver_nodes = rspec_get_sliver_nodes_from_network(rspec_string, network)
available_nodes = filter(lambda x:x not in sliver_nodes, all_nodes)
for node in sliver_nodes: