<Dl> <Dd> π − s + 2, </Dd> </Dl> <Dd> π − s + 2, </Dd> <P> where π is the number of decision points in the program, and s is the number of exit points . </P> <P> An even subgraph of a graph (also known as an Eulerian subgraph) is one where every vertex is incident with an even number of edges; such subgraphs are unions of cycles and isolated vertices . In the following, even subgraphs will be identified with their edge sets, which is equivalent to only considering those even subgraphs which contain all vertices of the full graph . </P>

Predict the number of independent paths to be tested