Hans Hagen wrote:

and the tuo files?

texexec --pdf test.tex --runs=2 copy test.tuo test-2.tuo

texexec --pdf test.tex --runs=3 copy test.tuo test-3.tuo

texexec --pdf test.tex --runs=4 copy test.tuo test-4.tuo

test-3.tuo and test-4.tuo are identical (via openssl md5 *.tui - as Gerben explained) : % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Commands % \thisissectionseparator{:} \thisisutilityversion{2003.07.19} \thisisbytesequence{“} \initializevariable\usedcolorchannels{} \initializevariable\lastpage{1} \initializevariable\lastpagenumber{1} \initializevariable\totalnofMPgraphics{0} \initializevariable\totalnofpositions{0} \initializevariable\totalnofparbackgrounds{0} \initializevariable\currentstrategypass{1} % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Registers % % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Synonyms % % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Files % % PARTS/TWO.tex (2) % test (2) % PARTS/ONE.tex (2) % % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Status % % embedded files : 3 (0 errors) % synonym entries : 0 (0 errors) % register entries : 0 (0 errors) % metapost graphics : 0 % position commands : 0 (not used) % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / System % AND test-2.tuo and test-n.tuo (texexec --pdf test.tex) are identical : % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Commands % \thisissectionseparator{:} \thisisutilityversion{2003.07.19} \thisisbytesequence{“} \initializevariable\usedcolorchannels{} \initializevariable\lastpage{1} \initializevariable\lastpagenumber{1} \initializevariable\totalnofMPgraphics{0} \initializevariable\totalnofpositions{0} \initializevariable\totalnofparbackgrounds{0} \initializevariable\currentstrategypass{1} % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Registers % % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Synonyms % % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Files % % PARTS/ONE.tex (2) % test (2) % PARTS/TWO.tex (2) % % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / Status % % embedded files : 3 (0 errors) % synonym entries : 0 (0 errors) % register entries : 0 (0 errors) % metapost graphics : 0 % position commands : 0 (not used) % % TeXUtil 9.0.0 - ConTeXt / PRAGMA ADE 1992-2004 / System % Steffen