Finding the prefix used for caravel subcells in the user GDS.
User prefix is wd_
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_00010028.gds
Cell caravel found at position 2861104970
Cell caravel ends at position 2873114822
Cell caravel checksum is 12009824
Info:  Structure caravel matches checksum 12009824
Info:  Structure caravel at 2861104970 to 2873114822 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 wd_user_id_textblock copyright_block wd_copyright_block open_source wd_open_source storage wd_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped wd_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming wd_user_id_programming simple_por wd_simple_por gpio_control_block wd_gpio_control_block mgmt_core wd_mgmt_core mgmt_protect wd_mgmt_protect chip_io wd_chip_io user_project_wrapper wd_user_project_wrapper ./gds/caravel_00010028_b.gds -debug -verbatim
Original data length = 2873115544
Replaced b'open_source\x00' with b'wd_open_source'
Replaced b'user_id_textblock\x00' with b'wd_user_id_textblock'
Replaced b'copyright_block\x00' with b'wd_copyright_block'
Replaced b'storage\x00' with b'wd_storage'
Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'wd_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
Replaced b'user_id_programming\x00' with b'wd_user_id_programming'
Replaced b'simple_por' with b'wd_simple_por\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'mgmt_core\x00' with b'wd_mgmt_core'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'mgmt_protect' with b'wd_mgmt_protect\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'gpio_control_block' with b'wd_gpio_control_block\x00'
Replaced b'chip_io\x00' with b'wd_chip_io'
Replaced b'user_project_wrapper' with b'wd_user_project_wrapper\x00'
Finished.