read_verilog mul.v
hierarchy -top top
equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd top # Constrain all select calls below inside the top module

select -assert-count 12 t:LUT2
select -assert-count 1  t:LUT3
select -assert-count 6  t:LUT4
select -assert-count 1  t:LUT5
select -assert-count 33 t:LUT6
select -assert-count 11 t:MUXCY
select -assert-count 1  t:MUXF7
select -assert-count 12 t:XORCY
select -assert-none t:FDRE t:LUT2 t:LUT3 t:LUT4 t:LUT5 t:LUT6 t:MUXCY t:MUXF7 t:XORCY %% t:* %D