The 3rd Reactive Synthesis Competition (SYNTCOMP 2016): Benchmarks, Participants & Results

We report on the benchmarks, participants and results of the third reactive synthesis competition(SYNTCOMP 2016). The benchmark library of SYNTCOMP 2016 has been extended to benchmarks in the new LTL-based temporal logic synthesis format (TLSF), and 2 new sets of benchmarks for the existing AIGER-based format for safety specifications. The participants of SYNTCOMP 2016 can be separated according to these two classes of specifications, and we give an overview of the 6 tools that entered the competition in the AIGER-based track, and the 3 participants that entered the TLSF-based track. We briefly describe the benchmark selection, evaluation scheme and the experimental setup of SYNTCOMP 2016. Finally, we present and analyze the results of our experimental evaluation, including a comparison to participants of previous competitions and a legacy tool.Comment: In Proceedings SYNT 2016, arXiv:1611.0717

The Reactive Synthesis Competition: SYNTCOMP 2016 and Beyond

We report on the design of the third reactive synthesis competition (SYNTCOMP 2016), including a major extension of the competition to specifications in full linear temporal logic. We give a brief overview of the synthesis problem as considered in SYNTCOMP, and present the rules of the competition in 2016, as well as the ideas behind our design choices. Furthermore, we evaluate the recent changes to the competition based on the experiences with SYNTCOMP 2016. Finally, we give an outlook on further changes and extensions of the competition that are planned for the future.Comment: In Proceedings SYNT 2016, arXiv:1611.0717

CTL* synthesis via LTL synthesis

We reduce synthesis for CTL* properties to synthesis for LTL. In the context of model checking this is impossible - CTL* is more expressive than LTL. Yet, in synthesis we have knowledge of the system structure and we can add new outputs. These outputs can be used to encode witnesses of the satisfaction of CTL* subformulas directly into the system. This way, we construct an LTL formula, over old and new outputs and original inputs, which is realisable if, and only if, the original CTL* formula is realisable. The CTL*-via-LTL synthesis approach preserves the problem complexity, although it might increase the minimal system size. We implemented the reduction, and evaluated the CTL*-via-LTL synthesiser on several examples.Comment: In Proceedings SYNT 2017, arXiv:1711.1022

The 4th Reactive Synthesis Competition (SYNTCOMP 2017): Benchmarks, Participants & Results

We report on the fourth reactive synthesis competition (SYNTCOMP 2017). We introduce two new benchmark classes that have been added to the SYNTCOMP library, and briefly describe the benchmark selection, evaluation scheme and the experimental setup of SYNTCOMP 2017. We present the participants of SYNTCOMP 2017, with a focus on changes with respect to the previous years and on the two completely new tools that have entered the competition. Finally, we present and analyze the results of our experimental evaluation, including a ranking of tools with respect to quantity and quality of solutions.Comment: In Proceedings SYNT 2017, arXiv:1711.10224. arXiv admin note: text overlap with arXiv:1609.0050