[tasks]
--pycode-begin--
supported = {
    "aigbmc": ["bmc"],
    "ric3": ["bmc", "prove"],
    "avy": ["prove"],
    "suprove": ["prove", "live"],
}

for solver, modes in supported.items():
    for mode in modes:
        output(f"{solver}_{mode} mode_{mode} solver_{solver}")
--pycode-end--

[options]
mode_bmc: mode bmc
mode_prove: mode prove
mode_live: mode live

mode_bmc: depth 4
mode_live: expect fail

[engines]
solver_aigbmc: aiger aigbmc
solver_ric3: aiger rIC3
solver_avy: aiger avy
solver_suprove: aiger suprove

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

[file top.sv]
module top(input clk, input up, down);
    reg [4:0] counter = 0;

    always @(posedge clk) begin
        if (up && counter != 10)
            counter <= counter + 1;
        if (down && counter != 0)
            counter <= counter - 1;

        assert property (counter != 15);
        assert property (s_eventually counter == 15);
    end
endmodule