OpenROAD 7f00621cb612fd94e15b35790afe744c89d433a7 
This program is licensed under the BSD-3 license. See the LICENSE file for details.
Components of this program may be licensed under more restrictive licenses which must be honored.
Setting global connections for newly added cells...
[WARNING] Did not save OpenROAD database!
Writing netlist to /home/piotro/caravel_user_project/openlane/core/runs/22_12_26_19_24/tmp/signoff/31-core.nl.v...
Writing powered netlist to /home/piotro/caravel_user_project/openlane/core/runs/22_12_26_19_24/tmp/signoff/31-core.pnl.v...