iftruexyxiffalsexyyeq00trueeq0sxfalseeqsx0falseeqsxsyeqxyappnilllappconsxl1l2consxappl1l2appappl1l2l3appl1appl2l3memxnilfalsememxconsylifmemeqxyxlifmemtruexltrueifmemfalsexlmemxlinterxnilnilinternilxnilinterappl1l2l3appinterl1l3interl2l3interl1appl2l3appinterl1l2interl1l3interconsxl1l2ifintermemxl2xl1l2interl1consxl2ifintermemxl1xl2l1ifintertruexl1l2consxinterl1l2ifinterfalsexl1l2interl1l22.1eqsxsyeqxyappconsxl1l2appl1l2appappl1l2l3appl1appl2l3appappl1l2l3appl2l3memxconsylifmemeqxyxlmemxconsyleqxyifmemfalsexlmemxlinterappl1l2l3appinterl1l3interl2l3interappl1l2l3interl1l3interappl1l2l3interl2l3interl1appl2l3appinterl1l2interl1l3interl1appl2l3interl1l2interl1appl2l3interl1l3interconsxl1l2ifintermemxl2xl1l2interconsxl1l2memxl2interl1consxl2ifintermemxl1xl2l1interl1consxl2memxl1ifintertruexl1l2interl1l2ifinterfalsexl1l2interl1l2trueinterappl1l2l3interl2l3interappl1l2l3interl1l3interl1appl2l3interl1l2interl1appl2l3interl1l3interconsxl1l2ifintermemxl2xl1l2ifintertruexl1l2interl1l2interl1consxl2ifintermemxl1xl2l1ifinterfalsexl1l2interl1l2true12345678inter21320ifinter43640app20cons21mem21true02false03nil04005s16app212cons22mem2true0false0nil0ifmem33eq2200s1interappl1l2l3interl2l3interappl1l2l3interl1l3interl1appl2l3interl1l2interl1appl2l3interl1l3interconsxl1l2ifintermemxl2xl1l2ifintertruexl1l2interl1l2ifinterfalsexl1l2interl1l2inter210ifinter433app21cons22mem20true03false04nil05ifmem30006s14app212cons22mem2true0false0nil0ifmem332eq2200s1interl1appl2l3interl1l2interl1appl2l3interl1l3inter221app20app212interconsxl1l2memxl2false236interl1consxl2memxl1false125memxconsylifmemeqxyxlifmemfalsexlmemxltrue14mem220ifmem330cons20eq21false01002true02s13cons221eq221false000true0s1ifmemfalsexlmemxlifmemfalsexlmemxlfalsememxconsyleqxyfalse3eqsxsyeqxytrue3eq221s10s11interappl1l2l3appinterl1l3interl2l3false2interl1appl2l3appinterl1l2interl1l3falseappappl1l2l3appl1appl2l3appconsxl1l2appl1l2appappl1l2l3appl2l3trueapp210app20nil01app221cons22nil0appconsxl1l2appl1l2app211cons20cons212
AProVE
3d3b40ebf1f1cc0cfb76e51606fb79299fd7ea19 rene 20120105 unpublished dirty
http://aprove.informatik.rwth-aachen.de/
John
Doe