Armin Biere Robert Brummayer Consistency Checking of All Different Constraints over Bit-Vectors within a SAT Solver. 1-4 2008 FMCAD http://dx.doi.org/10.1109/FMCAD.2008.ECP.32 conf/fmcad/2008 db/conf/fmcad/fmcad2008.html#BiereB08