Calibre nmLVS Recon early circuit verification enables teams to perform a rapid reconnaissance of “dirty” and incomplete designs to discover specific types of circuit violations, and fix them earlier and faster, while reducing signoff LVS verification runs. Not only does the Calibre nmLVS Recon tool dramatically reduce overall verification cycle time, but it also enables teams to implement a more methodical approach that targets high-impact circuit verification issues in early design stages. This targeted verification of selective design issues enables designers to quickly find and fix errors likely to create major impacts on full-chip LVS and other verification flows.