Number: 300
Title: dot aborts with rank = source or sink
Submitter: Emden R. Gansner
Date: Thu May 29 11:50:41 2003
Subsys: Dot
Version: 1.9
System: *-*-
Severity: minor
Problem:
When an isolated node is specified as a source or sink, network simplex cannot find an initial feasible solution and aborts.
Input: 
digraph G {
  a -> b
  subgraph {
    rank = sink
    m
  }
}
Owner: north
Status: Fixed