try to avoid races again (cf. 8c37cb84065f and fd3a36e48b09);
theory Abs_Int_initimports "~~/src/HOL/ex/Interpretation_with_Defs" "~~/src/HOL/Library/While_Combinator" Vars Collecting Abs_Int_Testsbeginhide_const (open) top bot dom --"to avoid qualified names"end