never {
accept_init:
s0_init:
    if
    :: !(p) && !(r) && !(s) -> goto s4
    :: (p) && !(r) && !(s) -> goto s3
    :: (r) && !(s) -> goto s2
    :: (s) -> goto accept_s1
    fi;
s2:
    if
    :: !(q) && (r) && !(s) -> goto s2
    :: (q) && !(s) -> goto s2
    :: (s) -> goto accept_s1
    :: (p) && !(q) && !(r) && !(s) -> goto s3
    :: !(p) && !(q) && !(r) && !(s) -> goto s4
    fi;
s3:
    if
    :: !(p) && (q) && !(r) && !(s) -> goto s5
    :: !(p) && !(q) && !(r) && !(s) -> goto s4
    :: (p) && !(r) && !(s) -> goto s3
    :: (r) && !(s) -> goto s2
    :: (s) -> goto accept_s1
    fi;
s4:
    if
    :: (1) -> goto s4
    fi;
s5:
    if
    :: (p) && !(q) && !(r) && !(s) -> goto s6
    :: !(q) && (r) && !(s) -> goto s5
    :: (q) && !(s) -> goto s5
    :: !(p) && !(q) && !(r) -> goto s4
    :: (s) -> goto s4
    fi;
s6:
    if
    :: !(p) && !(q) && !(r) -> goto s4
    :: (s) -> goto s4
    :: !(p) && !(q) && (r) && !(s) -> goto s5
    :: !(p) && (q) && !(s) -> goto s5
    :: (p) && (r) && !(s) -> goto s5
    :: (p) && !(r) && !(s) -> goto s6
    fi;
accept_s1:
    if
    :: (1) -> goto accept_s1
    fi;
}