#1842 Error in routing for picorv32a Issue created by mariamrakka Description I am running the design flow example using picorv32a design. I am using commit e910d11 and I have all steps successful up to run_routing, where I am getting the below log of error during detailed routing (note that I am using pdks i have installed separately in open_pdks directory): ``` OpenROAD 9a713f0e8a51769207918da28adfd3c02b854375 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. [INFO]: Reading ODB at '/openlane/designs/picorv32a/runs/RUN_2023.06.03_07.02.57/tmp/routing/25-fill.odb'… define_corners Typical read_liberty -corner Typical /home/mariam/OpenLane/designs/picorv32a/src/sky130_fd_sc_hd__typical.lib [WARNING STA-0163] /home/mariam/OpenLane/designs/picorv32a/src/sky130_fd_sc_hd__typical.lib line 23, default_fanout_load is 0.0. [INFO ORD-0030] Using 2 thread(s). [INFO DRT-0149] Reading tech and libs. Units: 1000 Number of layers: 13 Number of macros: 442 Number of vias: 25 Number of viarulegen: 25 [INFO DRT-0150] Reading design. Design: picorv32 Die area: ( 0 0 ) ( 546215 556935 ) Number of track patterns: 12 Number of DEF vias: 0 Number of components: 39492 Number of terminals: 411 Number of snets: 2 Number of nets: 10163 [INFO DRT-0167] List of default vias: Layer mcon default via: L1M1_PR Layer via default via: M1M2_PR Layer via2 default via: M2M3_PR Layer via3 default via: M3M4_PR Layer via4 default via: M4M5_PR [INFO DRT-0162] Library cell analysis. [INFO DRT-0163] Instance analysis. Complete 10000 instances. Complete 20000 instances. Complete 30000 instances. [INFO DRT-0164] Number of unique instances = 265. [INFO DRT-0168] Init region query. [INFO DRT-0018] Complete 10000 insts. [INFO DRT-0018] Complete 20000 insts. [INFO DRT-0018] Complete 30000 insts. [INFO DRT-0024] Complete FR_MASTERSLICE. [INFO DRT-0024] Complete Fr_VIA. [INFO DRT-0024] Complete li1. [INFO DRT-0024] Complete mcon. [INFO DRT-0024] Complete met1. [INFO DRT-0024] Complete via. [INFO DRT-0024] Complete met2. [INFO DRT-0024] Complete via2. [INFO DRT-0024] Complete met3. [INFO DRT-0024] Complete via3. [INFO DRT-0024] Complete met4. [INFO DRT-0024] Complete via4. [INFO DRT-0024] Complete met5. [INFO DRT-0033] FR_MASTERSLICE shape region query size = 0. [INFO DRT-0033] FR_VIA shape region query size = 0. [INFO DRT-0033] li1 shape region query size = 453622. [INFO DRT-0033] mcon shape region query size = 456210. [INFO DRT-0033] met1 shape region query size = 112939. [INFO DRT-0033] via shape region query size = 3940. [INFO DRT-0033] met2 shape region query size = 2573. [INFO DRT-0033] via2 shape region query size = 3152. [INFO DRT-0033] met3 shape region query size = 2564. [INFO DRT-0033] via3 shape region query size = 3152. [INFO DRT-0033] met4 shape region query size = 868. [INFO DRT-0033] via4 shape region query size = 64. [INFO DRT-0033] met5 shape region query size = 80. [INFO DRT-0165] Start pin access. [INFO DRT-0076] Complete 100 pins. [INFO DRT-0076] Complete 200 pins. [INFO DRT-0076] Complete 300 pins. [INFO DRT-0076] Complete 400 pins. [INFO DRT-0076] Complete 500 pins. [INFO DRT-0076] Complete 600 pins. [INFO DRT-0076] Complete 700 pins. [INFO DRT-0076] Complete 800 pins. [INFO DRT-0076] Complete 900 pins. [INFO DRT-0077] Complete 1000 pins. [INFO DRT-0078] Complete 1009 pins. [INFO DRT-0079] Complete 100 unique inst patterns. [INFO DRT-0079] Complete 200 unique inst patterns. [WARNING DRT-0087] No valid pattern for unique instance 07761, master is sky130_vsdinv. [WARNING DRT-0087] No valid pattern for unique instance 07777, master is sky130_vsdinv. [INFO DRT-0081] Complete 247 unique inst patterns. [INFO DRT-0082] Complete 1000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 13259 [INFO DRT-0082] Complete 2000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09267 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09269 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09271 [INFO DRT-0082] Complete 3000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09685 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09799 [INFO DRT-0082] Complete 4000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09743 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09690 [INFO DRT-0082] Complete 5000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 09436 [INFO DRT-0082] Complete 6000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08026 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08386 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 10478 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12535 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12502 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12589 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12570 [INFO DRT-0082] Complete 7000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08496 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12636 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08487 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12512 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12664 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 07903 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12663 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08614 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08908 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12721 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08486 [INFO DRT-0082] Complete 8000 groups. @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 12782 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08743 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08516 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08784 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08559 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08590 @@@ dead end inst @@@ dead end inst [ERROR DRT-0085] Valid access pattern combination not found for 08577 @@@ dead end inst @@@ dead end inst [ERR… The-OpenROAD-Project/OpenLane