Finding the prefix used for caravel subcells in the user GDS.
User prefix is wZ_
Replacing cell caravel in the user GDS file.
Reading GDS file for alternate cell caravel
Cell caravel found at position 235669746
Cell caravel ends at position 247680056
Reading GDS file for original source ./gds/caravel_00010021.gds
Cell caravel found at position 3137073200
Cell caravel ends at position 3149083052
Cell caravel checksum is 12009824
Info:  Structure caravel matches checksum 12009824
Info:  Structure caravel at 3137073200 to 3149083052 will be replaced by alternate data.
Prefixing caravel subcells in the user GDS
Running:  /usr/share/pdk/bin/change_gds_string.py user_id_textblock wZ_user_id_textblock copyright_block wZ_copyright_block open_source wZ_open_source storage wZ_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped wZ_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming wZ_user_id_programming simple_por wZ_simple_por gpio_control_block wZ_gpio_control_block mgmt_core wZ_mgmt_core mgmt_protect wZ_mgmt_protect chip_io wZ_chip_io user_project_wrapper wZ_user_project_wrapper ./gds/caravel_00010021_b.gds -debug -verbatim
Original data length = 3149083774
Replaced b'open_source\x00' with b'wZ_open_source'
Replaced b'user_id_textblock\x00' with b'wZ_user_id_textblock'
Replaced b'copyright_block\x00' with b'wZ_copyright_block'
Replaced b'storage\x00' with b'wZ_storage'
Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'wZ_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
Replaced b'user_id_programming\x00' with b'wZ_user_id_programming'
Replaced b'simple_por' with b'wZ_simple_por\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'mgmt_core\x00' with b'wZ_mgmt_core'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'mgmt_protect' with b'wZ_mgmt_protect\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wZ_gpio_control_block\x00'
Replaced b'chip_io\x00' with b'wZ_chip_io'
Replaced b'user_project_wrapper' with b'wZ_user_project_wrapper\x00'
Finished.