| Type of Bug | Possible effects of bugs | likelyhood of crash | Difficulty to detect |
| Overwriting arrays | delayed crash, invalid calculations | high | medium |
| Failure to initialize data | Invalid calculations, possible crash | difficult | |
| Reading invalid memory | See Failure to initialize data | ||
| Memory leak | Machine slows to a halt as the lack of free memory causes many swap read/writes | low | easy |
| Incorrect implementation of Algorithm | Incorrect results | low | varies |