revnilnilrev.xy++revy.xnilcar.xyxcdr.xyynullniltruenull.xyfalse++nilyy++.xyz.x++yz2.0rev.xy++revy.xnilrev.xyrevy++.xyz++yztruerev.xyrevytrue121rev111.2112rev.xy++revy.xnilfalse1++.xyz++yztrue1++211.2112
AProVE
cb833845625c1ead9ffe8258c791cc945104daa0 rene 20110429 unpublished dirty
http://aprove.informatik.rwth-aachen.de/
John
Doe