The cyclomatic number and the normal number of programs

The cyclomatic number of a program = flow graph = flow diagram = program scheme is its number of tests, without any respect to the existence or non-existence of loops. The normal number of a program is the (minimal) number of loops in a normal form of the program. The running time of a program is one of the most important complexity measures which is reflected by the normal number but not by the cyclomatic number.