yosys/tests/arch/machxo2/fsm.ys

read_verilog ../common/fsm.v
hierarchy -top fsm
proc
flatten

equiv_opt -run :prove -map +/lattice/cells_sim_xo2.v synth_lattice -family xo2 -nowidelut
miter -equiv -make_assert -flatten gold gate miter
sat -verify -prove-asserts -show-public -set-at 1 in_reset 1 -seq 20 -prove-skip 1 miter

design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd fsm # Constrain all select calls below inside the top module

select -assert-max 16 t:LUT4
select -assert-count 6 t:TRELLIS_FF
select -assert-none t:TRELLIS_FF t:LUT4 t:TRELLIS_IO %% t:* %D