test_pmgen -generate reduce
hierarchy -top pmtest_test_pmgen_pm_reduce
flatten; opt_clean

design -save gold
test_pmgen -reduce_chain
design -stash gate

design -copy-from gold -as gold pmtest_test_pmgen_pm_reduce
design -copy-from gate -as gate pmtest_test_pmgen_pm_reduce
miter -equiv -flatten -make_assert gold gate miter
sat -verify -prove-asserts miter

design -load gold
test_pmgen -reduce_tree
design -stash gate

design -copy-from gold -as gold pmtest_test_pmgen_pm_reduce
design -copy-from gate -as gate pmtest_test_pmgen_pm_reduce
miter -equiv -flatten -make_assert gold gate miter
sat -verify -prove-asserts miter