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Synopsys IC Compiler (ICC) is a comprehensive place and route solution for designing and implementing integrated circuits (ICs). It provides a powerful and flexible environment for designing, optimizing, and verifying complex digital systems. ICC is widely used in the semiconductor industry for designing and implementing System-on-Chip (SoC) designs.

If your script commands look like create_route_guide , you are likely in ICC II. If you are using derive_pg_connection heavily for older flows, you might be in classic ICC.