#CO Gate 2009 Self Doubt.

Question

Original question- https://gateoverflow.in/1314/gate2009-28

In the best answer selected, why in 6th cycle we are introducing I4 {S1} while I3 {S2} hasn't gone to next stage?

In this question if we take the above approach, we will get different answer, according to me, I4 {S1} will be introduced in 7th clock. 

Also, Refer this GATE 2004-IT question- https://gateoverflow.in/3690/gate2004-it-47  in this we are doing as the above approach.

Comments

yes, I know there is a problem,even I commented in that question :)