| J. Field, D. Goyal, G. Ramalingam, and E. Yahav. Shallow finite state verification. Technical Report RC22673, IBM T.J. Watson Research Center, Dec. 2002. |
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J. Field, D. Goyal, G. Ramalingam, and E. Yahav. Shallow finite state verification. Technical Report RC22673, IBM T.J. Watson Research Center, Dec. 2002.
No context found.
J. Field, D. Goyal, G. Ramalingam, and E. Yahav. Shallow finite state verification. Technical Report RC22673, IBM T.J. Watson Research Center, Dec. 2002.
....enabling sequence property, but we use open ; read as the running example to contrast it with the omission closed property read # ; close. We show that verification of repeatable enabling sequence properties is PSPACEcomplete by reduction from the simultaneously false problem (see [20] [11]) Definition 12. Simultaneously False Problem) Given a program P with an initial assignment of values (0 or 1) to a set x1 , x2 , xn of boolean variables, where the program P contains only q 2 q 3 , Fig. 8. An automaton for the property open ; read. assignments (of constants ....
....from the entry point of P to a program point p such that x1 = 0, x2 = 0, xk = 0 when control reaches p Lemma 1. 1) The simultaneously false problem for acyclic programs is NP complete. 2) The simultaneously false problem for arbitrary programs is PSPACE complete. Proof. See [20] and [11]. be an automaton representing a repeatable enabling sequence property. We show that SVF is PSPACE hard by reduction from the simultaneously false problem. If #, #, # are such that sequences ## # are valid and sequence ## is invalid, then # and # must be non empty (although # may be ....
J. Field, D. Goyal, G. Ramalingam, and E. Yahav. Shallow finite state verification. Technical Report RC22673, IBM T.J. Watson Research Center, Dec. 2002.
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