Hi ,if i need to harden all the modules i used before harden the top design file?I am hardening a top design(not user_project_wrapper.v,just my own design top file) directly, but at

Running Synthesis

's step

Executing FLATTEN pass (flatten design).

, it delete all my modules with the messages

deleting now unused module XXX

, and the next step

Executing CHECK pass (checking for obvious problems).

,it bring countless message such as

$logic_not,$procmux$1018 ($mux),$eq,etc..

which make the size of “syn.log” exceed 2G, and eventually cause the Tcl_SetObjLength overflow like this https://open-source-silicon.slack.com/archives/C016H8WJMBR/p1661862723079829 .I dont know where the possible error come from,? why it told me all my modules are deleted and unused? Actually, i have tried harden all the modules before harden the top file, it still doesn't work and the same log as above.

if you find the answer for it, can you please share it? I don't really get if "deleting now unused module" in "Executing FLATTEN pass" is okay or it is really removing all my modules