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<https://github.com/The-OpenROAD-Project/OpenLane/issues/1603|#1603 Segfault in router (?)>
Issue created by <https://github.com/xobs|xobs>
*Description*

When running openlane to harden a design using caravel and sky130A, Step 7 (`Running Global Placement`) segfaults with a SIGABRT.

*Expected Behavior*

Openroad should not segfault, and should either print an error indicating the issue, or continue without error.

*Environment report*

```
Kernel: Linux v5.15.79.1-microsoft-standard-WSL2
Distribution: ubuntu 22.04
Python: v3.10.6 (OK)
Container Engine: docker v20.10.21 (OK)
OpenLane Git Version: cb59d1f84deb5cedbb5b0a3e3f3b4129a967c988
pip: INSTALLED
python-venv: INSTALLED
---
PDK Version Verification Status: MISMATCH
The version of open_pdks used in building the PDK does not match the version OpenLane was tested on (installed: 0059588eebfc704681dc2368bd1d33d96281d10f, tested: 3af133706e554a740cfe60f21e773d9eaa41838c)
This may introduce some issues. You may want to re-install the PDK by invoking `make pdk`.
---
Git Log (Last 3 Commits)

cb59d1f 2022-11-18T18:42:38+02:00 fix return values in `equally_spaced_sequence` (#1503) - Kareem Farid -  (grafted, HEAD, tag: 2022.11.19)
---
Git Remotes

origin  <https://github.com/The-OpenROAD-Project/OpenLane> (fetch)
origin  <https://github.com/The-OpenROAD-Project/OpenLane> (push)
```

*Reproduction material*

Note: compressing using tar.gz or zip produces a 26 MB file, which I cannot upload. The attached file is a .tar.xz file that was renamed because the extension .xz is not allowed.

<https://github.com/The-OpenROAD-Project/OpenLane/files/10336625/issue_reproducible.tar.gz|issue_reproducible.tar.xz>  
<https://github.com/The-OpenROAD-Project/OpenLane/files/10336639/7-global.log|7-global.log>

*Relevant log output*

```
[ERROR]: during executing openroad script /openlane/scripts/openroad/gpl.tcl
[ERROR]: Log: ../si/work/caravel-minimax/openlane/mimi/runs/23_01_03_20_01/logs/placement/7-global.log
[ERROR]: Last 10 lines:
38# 0x00007FF5A5C0EF1E in /lib64/libtcl8.5.so
39# Tcl_EvalEx in /lib64/libtcl8.5.so
40# Tcl_Eval in /lib64/libtcl8.5.so
41# sta::sourceTclFile(char const*, bool, bool, Tcl_Interp*) in openroad
42# ord::tclAppInit(Tcl_Interp*) in openroad
43# Tcl_Main in /lib64/libtcl8.5.so
44# main in openroad
45# __libc_start_main in /lib64/libc.so.6
46# 0x0000000000CAB507 in openroad
child killed: SIGABRT

[ERROR]: Creating issue reproducible...
```
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>