[tasks]
btormc
#pono
smtbmc

[options]
mode bmc
expect fail

[engines]
btormc: btor btormc
# pono: btor pono
smtbmc: smtbmc

[script]
read -formal top.sv
prep -top top -flatten

[file top.sv]

module top(input clk);

    inner inner(clk);

endmodule

module inner(input clk);
    reg [7:0] counter = 0;

    reg [1:0] mem [0:255];

    initial begin
        mem[0] = 0;
        mem[1] = 1;
        mem[2] = 2;
        mem[3] = 2;
        mem[4] = 0;
        mem[7] = 0;
    end

    always @(posedge clk) begin
        counter <= counter + 1;
        foo: assert (mem[counter] < 3);
        bar: assume (counter < 7);

        mem[counter] <= 0;
    end
endmodule