minusXsYpredminusXYminusX0XpredsXXlesXsYleXYlesX0falsele0Ytruegcd0Y0gcdsX0sXgcdsXsYifleYXsXsYiftruesXsYgcdminusXYsYiffalsesXsYgcdminusYXsX2.1minusXsYpredminusXYminusXsYminusXYlesXsYleXYgcdsXsYifleYXsXsYgcdsXsYleYXiftruesXsYgcdminusXYsYiftruesXsYminusXYiffalsesXsYgcdminusYXsXiffalsesXsYminusYXtrueiftruesXsYgcdminusXYsYgcdsXsYifleYXsXsYiffalsesXsYgcdminusYXsXtrue123456if3172730gcd21720true00s11minus20le21false00002true0s11minus21le22false0pred1100iftruesXsYgcdminusXYsYgcdsXsYifleYXsXsYminusXsYpredminusXYminusX0XlesXsYleXYlesX0falsele0YtruepredsXXif31620gcd210true01s11le21002false00true0s11minus21le2pred1100false0gcdsXsYifleYXsXsYminusXsYpredminusXYminusX0XlesXsYleXYlesX0falsele0YtruepredsXXgcdsXsYifleYXsXsYfalseiftruesXsYminusXYfalse24iffalsesXsYminusYXfalse13minusXsYminusXYtrue2minus221s10s11minusXsYpredminusXYfalse2gcdsXsYleYXfalselesXsYleXYtruele221s10s11
AProVE
3d3b40ebf1f1cc0cfb76e51606fb79299fd7ea19 rene 20120105 unpublished dirty
http://aprove.informatik.rwth-aachen.de/
John
Doe