For internationals and out of state admit rate tends to be much higher is my guess. This is due to the fact that yield is very low for that category especially for UCs due to ridiculous costs and usually students like the OP get some other lower cost (after merit/need based) private and state schools want to maintain their approved quota of OOS/Internationals for business reasons.
My son (albeit not in CS) got into many of these and based on the reports on CC in-state kids with way superior profiles got rejected.
Also I know positively that some people with a profile much worse than OP who got into all these in CS.
CS of course always feels lime this mysterious crap-shoot game so if OP wants a true safety he could apply to applied math etc. and then later hope to transfer for some of the colleges.