More yosys-smtbmc smtc features

examples/smtbmc/demo3.v

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+// Whatever the initial content of this memory is at reset, it will never change
+// see demo3.smtc for assumptions and assertions
+
+module demo3(input clk, rst, input [15:0] addr, output reg [31:0] data);
+	reg [31:0] mem [0:2**16-1];
+	reg [15:0] addr_q;
+
+	always @(posedge clk) begin
+		if (rst) begin
+			data <= mem[0] ^ 123456789;
+			addr_q <= 0;
+		end else begin
+			mem[addr_q] <= data ^ 123456789;
+			data <= mem[addr] ^ 123456789;
+			addr_q <= addr;
+		end
+	end
+endmodule