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DAC
2009
ACM
14 years 5 months ago
Efficient SAT solving for non-clausal formulas using DPLL, graphs, and watched cuts
Boolean satisfiability (SAT) solvers are used heavily in hardware and software verification tools for checking satisfiability of Boolean formulas. Most state-of-the-art SAT solver...
Himanshu Jain, Edmund M. Clarke
AAAI
2008
13 years 7 months ago
Phase Transitions and Complexity of Weighted Satisfiability and Other Intractable Parameterized Problems
The study of random instances of NP complete and coNP complete problems has had much impact on our understanding of the nature of hard problems. In this work, we initiate an effor...
Yong Gao
LICS
2009
IEEE
13 years 11 months ago
An Exponential Lower Bound for the Parity Game Strategy Improvement Algorithm as We Know it
This paper presents a new lower bound for the discrete strategy improvement algorithm for solving parity games due to V¨oge and Jurdzi´nski. First, we informally show which stru...
Oliver Friedmann
ICALP
2010
Springer
13 years 6 months ago
Parameterized Modal Satisfiability
We investigate the parameterized computational complexity of the satisfiability problem for modal logic and attempt to pinpoint relevant structural parameters which cause the probl...
Antonis Achilleos, Michael Lampis, Valia Mitsou