Warning: node "KEY_READY_O" has only 1 connection
Warning: node "DATA_O[4]" has only 1 connection
Warning: node "DATA_O[1]" has only 1 connection
Warning: node "DATA_O[0]" has only 1 connection
Warning: node "DATA_O[2]" has only 1 connection
Warning: node "DATA_O[3]" has only 1 connection
Warning: node "DATA_O[5]" has only 1 connection
Warning: node "DATA_O[6]" has only 1 connection
Warning: node "DATA_O[7]" has only 1 connection
Warning: node "VALID_O" has only 1 connection
Warning: 10 nodes with connectivity problems are reported in 'hsim.conn'
DC initialization ended after 250 iterations without convergence