You are anthropomorphizing the computer. While talking about a computer program "deciding" to make a trade can be a useful abstraction, ultimately it's just computer code. Perhaps someday AI will be so advanced that no distinction can be meaningfully made between a computer making a decision and a human, but we aren't there yet. If we were there, then a person telling another person "Here's some insider information, but don't trade on it" would absolutely be criminally responsible if that other person ignored the warning and traded on it.
In the current situation, really what it comes down to is that someone put insider information in a file, and that file was accessed when making trading information. That's a massive violation of basic precautions, and I find it unlikely that the courts would buy the excuse of "I didn't intend there to be insider trading". If you have insider information about a company, you shouldn't be trading in the stock of that company. If you're running trading programs on your computer, you should have the rule hardcoded into the program than it won't trade on the company's stock. If you put the insider information on a computer, you shouldn't let other people have access to the computer.
In nvoight's answer, they say:
The only way I can see that neither of those people is guilty of insider trading is if one fed in the info believing it would never be used in the real world while the other used it in the real world not knowing it had been fed this information.
But even that doesn't make sense. Suppose Alice fed the information into the program, and Bob used the program. Was Bob authorized to know about the merger? Then he shouldn't have used a trading program that was capable of trading in the company's stock. It doesn't matter if he wasn't aware of the merger, simply being AUTHORIZED to know insider information about the company means that he should have known that trading in that company would expose him to criminal liability. And if he wasn't authorized to know about the merger, then once Alice allowed the computer program access to the information, she should not have allowed Bob any access to the computer program. The computer should be completely locked down with no connection to the outside world. (And really, Alice shouldn't be touching any trading program with a ten foot pool. Every trade she makes should be cleared through Compliance.)
Any company that both engages in activity that gives them access to insider information, and does anything related to trading, will have strict separation between the two. They will work on different floors, employees' badges won't work if they try to go onto the floor they aren't supposed to be on, there will be strict rules about what sort of communication they can engage in, etc. They won't be standing around a computer building a trading program together. Everyone either has access to insider information, or has trading authority, or neither. No one has both. If anyone is either, they are clearly designated as such, and strictly separated from the other. It's like a quarantine: either you're inside, or you're outside, and if you're inside, you have no contact with anyone outside.