OpenROAD 0.9.0 d03ebfc244
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.
Error: cannot open '/.openroad'.
Notice 0: Reading LEF file:  /project/openlane/DFFRAM/runs/DFFRAM/tmp/merged_unpadded.lef
Notice 0:     Created 13 technology layers
Notice 0:     Created 25 technology vias
Notice 0:     Created 438 library cells
Notice 0: Finished LEF file:  /project/openlane/DFFRAM/runs/DFFRAM/tmp/merged_unpadded.lef
Notice 0: 
Reading DEF file: /project/openlane/DFFRAM/runs/DFFRAM/tmp/floorplan/ioPlacer.def
Notice 0: Design: DFFRAM
Notice 0:     Created 78 pins.
Notice 0:     Created 20277 components and 141382 component-terminals.
Notice 0:     Created 12163 nets and 60270 connections.
Notice 0: Finished DEF file: /project/openlane/DFFRAM/runs/DFFRAM/tmp/floorplan/ioPlacer.def
Running tapcell...
Step 1: Cut rows...
[INFO] Macro blocks found: 0
[INFO] #Original rows: 185
[INFO] #Cut rows: 0
Step 2: Insert endcaps...
[INFO] #Endcaps inserted: 370
Step 3: Insert tapcells...
[INFO] #Tapcells inserted: 4860
Running tapcell... Done!