what is the step index of the start of the deterministic loop , if it exists ? concode_field_sep long loopStart concode_elem_sep boolean isLooping concode_elem_sep long loopEnd concode_field_sep void addStep concode_elem_sep boolean isLooping concode_elem_sep void removePrecedingStates concode_elem_sep void initialise concode_elem_sep long loopEnd concode_elem_sep void backtrack
long function ( ) { return loopStart ; }