predsxxminusx0xminusxsypredminusxyquot0sy0quotsxsysquotminusxysy2.1minusxsypredminusxyminusxsyminusxyquotsxsyquotminusxysyquotsxsyminusxytruequotsxsyquotminusxysytrue123000s11minus2100s11pred11minusx0xminusxsypredminusxypredsxxquotsxsyquotminusxysy1true12false2quotsxsyminusxyfalse12minusxsyminusxytrue1s10s11minusxsyminusxy1false12true2minusxsypredminusxyfalse
AProVE
3d3b40ebf1f1cc0cfb76e51606fb79299fd7ea19 rene 20120105 unpublished dirty
http://aprove.informatik.rwth-aachen.de/
John
Doe