Sin can be as Lucifer showed.
Did God foreknow the sin of Lucifer?
Yes, God always knew that Lucifer would sin.
The only alternative to Lucifer choosing to sin is that God wanted Lucifer to sin and pre-programmed him do so, thus, God is the author of sin.
If that is the case then stating that God is Just for sending the wicked to hell is a distortion of Justice since it is God who put them into sin in the first place.
So, what will the Calvinist fall back to when faced with making God the author of that which He hates?
God is Sovereign!!!
The Muslims say the same thing!
Time to move on!
So He could have made him differently that he would not sin or not made him at all right?