Finding the prefix used for caravel subcells in the user GDS.
User prefix is kC_
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_00010020.gds
Cell caravel found at position 2759424342
Cell caravel ends at position 2771434194
Cell caravel checksum is 12009824
Info:  Structure caravel matches checksum 12009824
Info:  Structure caravel at 2759424342 to 2771434194 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 kC_user_id_textblock copyright_block kC_copyright_block open_source kC_open_source storage kC_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped kC_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming kC_user_id_programming simple_por kC_simple_por gpio_control_block kC_gpio_control_block mgmt_core kC_mgmt_core mgmt_protect kC_mgmt_protect chip_io kC_chip_io user_project_wrapper kC_user_project_wrapper ./gds/caravel_00010020_b.gds -debug -verbatim
Original data length = 2771434916
Replaced b'open_source\x00' with b'kC_open_source'
Replaced b'user_id_textblock\x00' with b'kC_user_id_textblock'
Replaced b'copyright_block\x00' with b'kC_copyright_block'
Replaced b'storage\x00' with b'kC_storage'
Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'kC_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
Replaced b'user_id_programming\x00' with b'kC_user_id_programming'
Replaced b'simple_por' with b'kC_simple_por\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'mgmt_core\x00' with b'kC_mgmt_core'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'mgmt_protect' with b'kC_mgmt_protect\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'kC_gpio_control_block\x00'
Replaced b'chip_io\x00' with b'kC_chip_io'
Replaced b'user_project_wrapper' with b'kC_user_project_wrapper\x00'
Finished.