--- a/src/HOL/SMT/Examples/cert/z3_bv_bit_09 Tue Feb 02 18:11:21 2010 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,4 +0,0 @@ -(benchmark Isabelle -:assumption (not (= (sign_extend[2] bv10[4]) bv58[6])) -:formula true -)