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NMR
2004
Springer
14 years 3 months ago
On acyclic and head-cycle free nested logic programs
We define the class of head-cycle free nested logic programs, and its proper subclass of acyclic nested programs, generalising similar classes originally defined for disjunctive...
Thomas Linke, Hans Tompits, Stefan Woltran
POPL
2006
ACM
14 years 10 months ago
A fixpoint calculus for local and global program flows
We define a new fixpoint modal logic, the visibly pushdown ?-calculus (VP-?), as an extension of the modal ?-calculus. The models of this logic are execution trees of structured p...
Rajeev Alur, Swarat Chaudhuri, P. Madhusudan
ICALP
1998
Springer
14 years 2 months ago
Difficult Configurations - On the Complexity of LTrL
The complexity of LTrL, a global linear time temporal logic over traces is investigated. The logic is global because the truth of a formula is evaluated in a global state, also ca...
Igor Walukiewicz
LPAR
2010
Springer
13 years 8 months ago
ABC: Algebraic Bound Computation for Loops
Abstract. We present ABC, a software tool for automatically computing symbolic upper bounds on the number of iterations of nested program loops. The system combines static analysis...
Régis Blanc, Thomas A. Henzinger, Thibaud H...
LPNMR
1999
Springer
14 years 2 months ago
On the Role of Negation in Choice Logic Programs
We introduce choice logic programs as negation-free datalog programs that allow rules to have exclusive-only (possibly empty) disjunctions in the head. Such programs naturally mod...
Marina De Vos, Dirk Vermeir