English

On the Hardness of PCTL Satisfiability

Logic in Computer Science 2015-12-01 v3

Abstract

This paper shows that the satisfiability problem for probabilistic CTL (PCTL, for short) is undecidable. By a reduction from 1121\frac{1}{2}-player games with PCTL winning objectives, we establish that the PCTL satisfiability problem is Σ11{\Sigma}_1^1-hard. We present an exponential-time algorithm for the satisfiability of a bounded, negation-closed fragment of PCTL, and show that the satisfiability problem for this fragment is EXPTIME-hard.

Keywords

Cite

@article{arxiv.1506.02483,
  title  = {On the Hardness of PCTL Satisfiability},
  author = {Souymodip Chakraborty and Joost-Pieter Katoen},
  journal= {arXiv preprint arXiv:1506.02483},
  year   = {2015}
}

Comments

This paper has been withdrawn by the author due to a crucial error in Theorem 2

R2 v1 2026-06-22T09:49:13.082Z