The volume that is enclosed within the autolysosome single-membrane. [ GOC:krc http://www.ncbi.nlm.nih.gov/pubmed/24657946 GOC:nhn http://www.ncbi.nlm.nih.gov/pubmed/32047650 http://www.ncbi.nlm.nih.gov/pubmed/17182262 http://www.ncbi.nlm.nih.gov/pubmed/26382870 ]