src/pl-debug.h. Please search the sources to find out what is actually printed and when. We highlight one topic here:
- dd many expensive consistency checks to the system. This should typically be used when the system crashes, notably in the garbage collector. Garbage collection crashes are in most cases caused by invalid data on the Prolog stacks. This debug topic may help locating how the invalid data was created.
These predicates require the system to be compiled for debugging