set i = (a,k1) >=0_goto k2;
A3: InsCode (halt SCMPDS) = 0 by SCMPDS_2:12, SCMPDS_2:81;
InsCode ((a,k1) >=0_goto k2) = 6 by SCMPDS_2:18;
hence (a,k1) >=0_goto k2 is No-StopCode by A3, COMPOS_1:def 24; :: thesis: verum