BUG: ERROR: *** IQ-TREE CRASHES WITH SIGNAL ABORTED

[silviajusti]

I have been trying to run IQ-tree and, regardless of how much memory I use, I keep getting the same error, and I can't quite figure out what is going on.

Here is the run info:

Host: compute-84-01 (AVX512, FMA3, 881 GB RAM)
Command: iqtree2 -s nexus/ -p COMBINED.txt -m MFP+MERGE -nt 36
Seed: 8853 (Using SPRNG - Scalable Parallel Random Number Generator)
Time: Tue Apr 26 07:26:30 2022
Kernel: AVX+FMA - 36 threads (112 CPU cores detected)

Here are the error messages form the log file:
ERROR: partitionmodelplen.cpp:146: virtual double PartitionModelPlen::optimizeParameters(int, bool, double, double): Assertion `cur_lh > tree_lh - 1.0 && "individual model opt reduces LnL"' failed.
ERROR: STACK TRACE FOR DEBUGGING:
ERROR:
ERROR: *** IQ-TREE CRASHES WITH SIGNAL ABORTED
ERROR: *** For bug report please send to developers:
ERROR: *** Log file: COMBINED.txt.log
ERROR: *** Alignment files (if possible)

[silviajusti]

COMBINED.txt.log