instantiate refine with mirror-backward by mapping csem → csem; cinit → cinit; cfin → cfin; cop2 → cop2; cop1 → cop1; cop → cop; asem → asem; ainit → ainit; afin → afin; aop2 → aop2; aop1 → aop1; aop → aop; t2 → t2; t1 → t1; t → t; cfin2 → cfin2; cfin1 → cfin1; ainit2 → ainit2; ainit1 → ainit1; r2 → r2; r1 → r1; r → r; afin2 → afin2; afin1 → afin1; cinit2 → cinit2; cinit1 → cinit1; rename end instantiate