[tasks]
a
b
c
d

[options]
mode bmc
expect fail

[engines]
smtbmc boolector

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

[autotune]
a: timeout 60
a: wait 10%+20
a: parallel 1
a: presat on
a: incr on
a: mem on
a: forall on

b: timeout none
b: parallel auto
b: presat off
b: incr off
b: mem auto
b: mem_threshold 20
b: forall any

c: presat any
c: incr any
c: mem any
c: forall auto

d: incr auto
d: incr_threshold 10

[file autotune_div.sv]
module top (input clk);
    reg [7:0] counter = 0;
    always @(posedge clk) begin
        counter <= counter + 1;
        assert (counter != 4);
    end
endmodule