It is a fault localization method which specify the faulty statements base on Mutation and the MuEn formula. all implementation are available and i will be glad to be noticed by new ideas.
Bayati Chaleshtari, N., Parsa, S. SMBFL: slice-based cost reduction of mutation-based fault localization. Empir Software Eng 25, 4282–4314 (2020). https://doi.org/10.1007/s10664-020-09845-4