An error message from nhc, note the -1466809254:
The program ran out of heap memory. (Current heapsize is 40000000 bytes.)
You can set a bigger size with e.g. +RTS -H4M -RTS (4M = four megabytes).GC stats:
Only 83 words after gc, need 90 words.
Used 1541499472 words of heap. Moved -1466809254 words of heap in 2217 gcs.
83 words to next gc. Max live after gc: 9715784 words.
Thanks
Ian