Crash in chameleon with mpl2

[maliberty]

Subject

Describe the bug

If I try to enable mpl2 for sky130hd/chameleon with

-export MACRO_PLACEMENT = $(chameleon_DIR)/chameleon.macro_placment.cfg
+export SYNTH_HIERARCHICAL = 1
+
+export RTLMP_FLOW = True

I get

Traversed logical hierarchy
	Number of std cell instances: 2971
	Area of std cell instances: 25033.99
	Number of macros: 0
	Area of macros: 0.00
	Area of macros with halos: 6491855.00
	Area of std cell instances + Area of macros: 25033.99
	Core area: 10009950.00
	Design Utilization: 0.00
	Core Utilization: 0.00
	Manufacturing Grid: 5

/usr/include/c++/8/bits/stl_vector.h:950: std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) const [with _Tp = std::pair<float, float>; _Alloc = std::allocator<std::pair<float, float> >; std::vector<_Tp, _Alloc>::const_reference = const std::pair<float, float>&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__builtin_expect(__n < this->size(), true)' failed.
Signal 6 received
Stack trace:
 0# 0x0000000000DC0687 in /workspaces/mliberty-ssd/w3/OpenROAD-flow-scripts/tools/install/OpenROAD/bin/openroad
 1# 0x00007F02ABC4D5B0 in /lib64/libc.so.6
 2# gsignal in /lib64/libc.so.6
 3# abort in /lib64/libc.so.6
 4# std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, odb::dbSite*>, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, odb::dbSite*> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, odb::dbSite*> > >::_M_erase(std::_Rb_tree_node<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, odb::dbSite*> >*) in /workspaces/mliberty-ssd/w3/OpenROAD-flow-scripts/tools/install/OpenROAD/bin/openroad
 5# mpl2::HierRTLMP::setIOClustersBlockages() in /workspaces/mliberty-ssd/w3/OpenROAD-flow-scripts/tools/install/OpenROAD/bin/openroad
 6# mpl2::HierRTLMP::runCoarseShaping() in /workspaces/mliberty-ssd/w3/OpenROAD-flow-scripts/tools/install/OpenROAD/bin/openroad
 7# mpl2::HierRTLMP::run() in /workspaces/mliberty-ssd/w3/OpenROAD-flow-scripts/tools/install/OpenROAD/bin/openroad

Expected Behavior

No crash

Environment

Commits

ORFS 12c7d2e07c59991900627e30a4c3ed0a657448f8
OR 50753a4c53db3cd42009d5117fe51b73ebfe8104

To Reproduce

Run as above

Relevant log output

No response

Screenshots

No response

Additional Context

No response