[Spot] Question regarding SPOT's accepting_run behaviour

Hello, I am contacting this list because I have a question regarding the behaviour of SPOT’s accepting_run function. I created an example (see attached) where, if I am not mistaken, the accepting run that is yielded does not satisfy the acceptance formula. Could you confirm that this is a problem and not a mistake in my understanding of the function and/or acceptance formula ? In addition, the acceptance formula is somehow detected as being a gen. Streett condition, can this be prevented and does it have an influence on how the emptiness check/accepting run generation is handled ? Thank you for your help, Clément