The memory tracking feature is similar to the debugger "U" command, which displays the amount of dynamically allocated memory currently used by the runtime system. You can turn on memory tracking by setting the environment variables TRACE or A_DEBUG to positive numeric values. Apart from writing some C code (see 6.7.4 in A Guide to Interoperating with ACUCOBOL-GT), or running in the debugger (which turns this feature on automatically), there is no way to get the values stored for memory tracking.