[tasks]
yices
z3

[options]
mode cover
depth 1

[engines]
yices: smtbmc --stbv yices
z3: smtbmc --stdt z3

[script]
read -noverific
read -formal primegen.sv
prep -top primegen

[file primegen.sv]

module primegen;
	(* anyconst *) reg [9:0] prime;
	(* allconst *) reg [4:0] factor;

	always @* begin
		if (1 < factor && factor < prime)
			assume ((prime % factor) != 0);
		assume (prime > 800);
		cover (1);
	end
endmodule