Let me start out by saying I’m not an expert in philosophy or theology and I believe if your truly searching for an answer to this you should ask an apologist. For my own understanding, I want to analyze this. I will separate things you said for my sake in understanding it. The definitions below come from google.
This is basically what you are saying:
- God is omniscient (all-knowing). Yup
- God is cognitively (knowingly) open to free will. Yup
- God knows the decision we perform in a situation. Yup
a) God is cognitively open to free will. Yup
b) God is cognitively open to the situation. Yup
c) God is cognitively open to creation. Yup
- a) Creation was performed by first cause (a supposed ultimate cause of all events, which does not itself have a cause (i.e. God)) Yup
b) God was cognitively open to first cause (God). Obviously
*You are basically repeating that God is all-knowing it seems.
- a) Evil exist… (does it?)
Evil is not a being, its an action. So if you mean people commit evil actions, then yup.
b) …God was aware of the source of evil in first cause…
In other words, you are saying God was aware of the source of evil in God. This is not a true statement because God is Moral Goodness. I assume you are trying to say: God is aware of the source(s) that would trigger evil actions in creation (humans and angels, creation that is able to commit evil actions).
c) …since it was cognitively open to it.
*I’m not talking about physical evil here, like natural disasters or anything because I don’t assume you are referring to that.
*I’m going to reword this 5th claim so that it can make sense to me:
Evil actions exist and God was aware of the sources that would cause evil in creation. Therefore, God was cognitively open to such sources.
- God created evil.
More like permitted triggers of evil actions in creation.
So I assume your overall statement would be:
God is all knowing. He gave man and angels (creation) free will. Free will gives creation the option of committing evil actions and turning away from God or committing good actions and becoming more like God (Moral goodness). God knew that man and angels could commit evil actions, but permitted the sources of evil actions anyway. This is nothing knew.
But why would God permit sources of evil actions? For more information on that, take a look at the CCC.
catholicculture.org/culture/library/catechism/index.cfm?recnum=1764
For a better understanding of free will, take a look at the CCC.
vatican.va/archive/ccc_css/archive/catechism/p3s1c1a3.htm
Bahman, make sure you know the definitions of the terms you are using. It would help you immensely wherever your religious views may go

And more than that, remember, you are not dealing with a God that was made up over night, you are dealing with a God whose very nature had been contemplated for many centuries by scholars of all fields! There is a reason so many believe in the God of Abraham. His nature makes sense of the reality of world we live in.
If what you stated is different than my interpretation of what you stated, please enlighten me on what you meant.
Thank you for all the new knowledge you helped me acquire through this process! May God bless you in this new year and in your faithful journey, wherever it may go!