[tasks]coverbmcprove [options]depth 25cover: mode coverbmc: mode bmcprove: mode prove [engines]cover: smtbmc z3bmc: abc bmc3prove: smtbmc z3 [script]ghdl --std=08 -gWidth=16 -gFormal=true alu.vhd -e aluprep -auto-top [files]alu.vhd