3 papers
cs.FL2026
Reachability in VASS Extended with Integer Counters
Clotilde Bizière, Wojciech CzerwiÅski, Roland Guttenberg +5
We consider a variant of VASS extended with integer counters, denoted VASS+Z. These are automata equipped with N and Z counters; the N-counters are required to remain nonnegative a…
cs.FL2026
Exploring VASS Parameterised by Geometric Dimension
Wojciech CzerwiÅski, Roland Guttenberg, Åukasz Orlikowski +2
The geometric dimension of a Vector Addition System with States (VASS) is the dimension of the vector space generated by cycles in the VASS; this parameter refines the standard…
cs.FL2025
Language Equivalence is Undecidable in VASS with Restricted Nondeterminism
Wojciech CzerwiÅski, Åukasz Orlikowski
In this work, we extend undecidability of language equivalence for two-dimensional Vector Addition System with States (VASS) accepting by coverability condition. We show that the p…