-x0x-sxsy-xy<=0ytrue<=sx0false<=sxsy<=xyiftruexyxiffalsexyyperfectp0falseperfectpsxfxs0sxsxf0y0utruef0yszufalsefsx0zufxu-zsxufsxsyzuif<=xyfsx-yxzufxuzu2.1-sxsy-xy<=sxsy<=xyperfectpsxfxs0sxsxfsx0zufxu-zsxufsx0zu-zsxfsxsyzuif<=xyfsx-yxzufxuzufsxsyzu<=xyfsxsyzufsx-yxzufsxsyzu-yxfsxsyzufxuzutrueperfectpsxfxs0sxsxfalse1234567fsxsyzufsx-yxzufsx0zufxu-zsxufsxsyzufxuzutrue123456f41s10001f4134s11-2100fsxsyzufsx-yxzu-x0x-sxsy-xyf41s11-20002f412s11-2100-x0x-sxsy-xyfsx0zu-zsxfalse3fsxsyzu-yxfalse2-sxsy-xytrue2-20s10-212s11fsxsyzu<=xyfalse<=sxsy<=xytrue<=20s10<=212s11fsxsyzuif<=xyfsx-yxzufxuzufalse
AProVE
d08497719f481e0c456d436c39d857ef33ce6dc3 rene 20120104 unpublished dirty
http://aprove.informatik.rwth-aachen.de/
John
Doe