Find way to guarantee that assertion failures cause simulation to exit with nonzero exit code

[zhemao-openai]

We are currently setting the minimum assertion failures to 1 so that the simulation aborts on the first failure. However, it would be helpful to let the simulation run to completion and then exit with failure if any assertions were triggered. It seems this may not be the case currently if the minimum assertion failures is relaxed. Find a way to do this properly in the test driver.