read_verilog -icells <<EOT

module top(input D, C, R, S, input [4:0] E, output [15:0] Q);
$_DFFE_PP_ ff0(.D(D), .C(C), .E(E[0]), .Q(Q[0]));
$_DFFE_PP0P_ ff1(.D(D), .C(C), .E(E[0]), .R(R), .Q(Q[1]));
$_DFFE_PP1P_ ff2(.D(D), .C(C), .E(E[0]), .R(R), .Q(Q[2]));
$_SDFFE_PP0P_ ff3(.D(D), .C(C), .E(E[0]), .R(R), .Q(Q[3]));
$_SDFFE_PP1P_ ff4(.D(D), .C(C), .E(E[0]), .R(R), .Q(Q[4]));
$_SDFFCE_PP0P_ ff5(.D(D), .C(C), .E(E[0]), .R(R), .Q(Q[5]));
$_SDFFCE_PP1P_ ff6(.D(D), .C(C), .E(E[0]), .R(R), .Q(Q[6]));
$_DFFSRE_PPPP_ ff7(.D(D), .C(C), .E(E[0]), .R(R), .S(S), .Q(Q[7]));
$_DFFE_PP_ ff8(.D(D), .C(C), .E(E[1]), .Q(Q[8]));
$_DFFE_PP0P_ ff9(.D(D), .C(C), .E(E[1]), .R(R), .Q(Q[9]));
$_DFFE_PP1P_ ff10(.D(D), .C(C), .E(E[2]), .R(R), .Q(Q[10]));
$_SDFFE_PP0P_ ff11(.D(D), .C(C), .E(E[2]), .R(R), .Q(Q[11]));
$_SDFFE_PP1P_ ff12(.D(D), .C(C), .E(E[3]), .R(R), .Q(Q[12]));
$_SDFFCE_PP0P_ ff13(.D(D), .C(C), .E(E[3]), .R(R), .Q(Q[13]));
$_SDFFCE_PP1P_ ff14(.D(D), .C(C), .E(E[4]), .R(R), .Q(Q[14]));
$_DFFSRE_PPPP_ ff15(.D(D), .C(C), .E(E[4]), .R(R), .S(S), .Q(Q[15]));
endmodule

EOT

design -save orig
equiv_opt -assert -multiclock dfflegalize -cell $_DFFE_PP_ x -cell $_DFFE_PP?P_ x -cell $_DFFSRE_PPPP_ x -cell $_SDFFE_PP?P_ x -cell $_SDFFCE_PP?P_ x -mince 3
design -load postopt

select -assert-count 4 t:$_DFFE_PP_
select -assert-count 2 t:$_DFFE_PP0P_
select -assert-count 2 t:$_DFFE_PP1P_
select -assert-count 2 t:$_SDFFE_PP0P_
select -assert-count 2 t:$_SDFFE_PP1P_
select -assert-count 1 t:$_SDFFCE_PP0P_
select -assert-count 1 t:$_SDFFCE_PP1P_
select -assert-count 2 t:$_DFFSRE_PPPP_
select -assert-count 10 t:$_MUX_
select -assert-count 0 n:ff0 %ci %ci t:$_MUX_ %i
select -assert-count 0 n:ff1 %ci %ci t:$_MUX_ %i
select -assert-count 0 n:ff2 %ci %ci t:$_MUX_ %i
select -assert-count 0 n:ff3 %ci %ci t:$_MUX_ %i
select -assert-count 0 n:ff4 %ci %ci t:$_MUX_ %i
select -assert-count 0 n:ff5 %ci %ci t:$_MUX_ %i
select -assert-count 0 n:ff6 %ci %ci t:$_MUX_ %i
select -assert-count 0 n:ff7 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff8 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff9 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff10 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff11 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff12 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff13 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff14 %ci %ci t:$_MUX_ %i
select -assert-count 1 n:ff15 %ci %ci t:$_MUX_ %i
select -assert-none n:ff* t:$_MUX_ %% %n t:* %i