Functional coverage using irun

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surisingh

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Hi,
I am using irun for compilation and elaboration of my design and the testbench. I have a very simple interface file 'sv_interface.sv' which contains,

interface usbsys (input wire clk);

covergroup write_limit @ (negedge clk);
WriteLimit : coverpoint top_tb.read_write {
bins write= {0};
bins read = {1};
}
endgroup
write_limit wr_count = new();
endinterface

in top_tb.sv, I have instantiated this interface like, usbsys usbsys_inst(clk);

In my Makefile elaboration, I have '-coverage functional sv_interface.sv'

But my elaboration is kept on going like this...

client read error: Success
client read error: Success
streams: 68, words: 112925
worklib.uvm_pkg:rtl <0x1d2341d3>….
any idea?
 

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