This is XeTeX, Version 3.1415926-2.5-0.9999.3 (TeX Live 2013/Debian) (format=xelatex 2018.4.6) 6 APR 2018 01:38 entering extended mode \write18 enabled. %&-line parsing enabled. **TDP004.2018-04-06.kl.08-13.tex (./TDP004.2018-04-06.kl.08-13.tex ! Interruption. \begingroup l.1 %\documentclass[a4paper,11pt,answers,addpoints]{exam} ? x Here is how much of TeX's memory you used: 5 strings out of 493918 130 string characters out of 6150564 52172 words of memory out of 5000000 3428 multiletter control sequences out of 15000+600000 3640 words of font info for 14 fonts, out of 8000000 for 9000 1144 hyphenation exceptions out of 8191 3i,0n,1p,92b,6s stack positions out of 5000i,500n,10000p,200000b,80000s No pages of output.