# Single-bit $and read_verilog -noopt <<EOT module gold(input i, output o); assign o = 1'bx & i; endmodule EOT select -assert-count 1 t:$and copy gold coarse copy gold fine copy gold coarse_keepdc copy gold fine_keepdc cd coarse opt_expr select -assert-none c:* cd fine simplemap opt_expr select -assert-none c:* cd miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter sat -verify -prove-asserts -show-ports -enable_undef miter miter -equiv -flatten -make_assert -make_outputs coarse fine miter2 sat -verify -prove-asserts -show-ports -enable_undef miter2 cd coarse_keepdc opt_expr -keepdc select -assert-count 1 c:* cd fine_keepdc simplemap opt_expr -keepdc select -assert-count 1 c:* cd miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3 sat -verify -prove-asserts -show-ports -enable_undef miter3 miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4 sat -verify -prove-asserts -show-ports -enable_undef miter4 # Multi-bit $and design -reset read_verilog -noopt <<EOT module gold(input i, output [6:0] o); assign o = {1'bx, 1'b0, 1'b0, 1'b1, 1'bx, 1'b1, i} & {7{i}}; endmodule EOT select -assert-count 1 t:$and copy gold coarse copy gold fine copy gold coarse_keepdc copy gold fine_keepdc cd coarse opt_expr -fine select -assert-none c:* cd fine simplemap opt_expr select -assert-none c:* cd miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter sat -verify -prove-asserts -show-ports -enable_undef miter miter -equiv -flatten -make_assert -make_outputs coarse fine miter2 sat -verify -prove-asserts -show-ports -enable_undef miter2 cd coarse_keepdc opt_expr -fine -keepdc select -assert-count 1 c:* cd fine_keepdc simplemap opt_expr -keepdc select -assert-count 2 c:* cd miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3 sat -verify -prove-asserts -show-ports -enable_undef miter3 miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4 sat -verify -prove-asserts -show-ports -enable_undef miter4