Never truncate!! what version of PA are you on?
If those table are causing issues, you have a far bigger problem. With policy auditor, the results are the stuff that takes a lot of space, the one above are just house keeping table (except for you hips 7 table)
Get more space if you can, consider removing the policy auditor extension if you are not using the product (sometimes stuff is checked in but not used), you can easily check that in the licensing function. I can't remember exactly where that is, this is an old version of epo that is unsupported.
If you are using hips 8, you can safely remove the hips 7 extension.