On the Mechanical Derivation of Loop Invariants.

Ritu Chadha David A. Plaisted On the Mechanical Derivation of Loop Invariants. 705-744 1993 15 J. Symb. Comput. 5/6 db/journals/jsc/jsc15.html#ChadhaP93 http://dx.doi.org/10.1016/S0747-7171(06)80010-6