The penalties for a double weapon should be -4/-8 (second end counts as light), but the PDF output is applying as -8/-8.
Example character attached, this has the non-proficient penalty of -4 applied too for -11/-11. Should be -7/-11 for this character
sorry, duplicate of OS-228, but this one has the attached example.
+1 BAB for Class
TWF only applies if you take a Feat that allows TWF or have something else that grants it, Thus -8/-8 is correct as far as I can see.