"Insufficient memory" error when importing XML, but not using much memory!

[tsg]

I am importing a mildly large ~3gb xml file into SAS 9.4 on Windows.  When I do, I run into "The SAS System stopped processing this step because of insufficient memory."  However, when I (1) run this on a large-memory server and (2) increase the memsize and memmaxsz options to 500 gb each (verifying using proc options), it still gives the error.  I don't believe memory is actually the problem, because when I run "options fullstimer" I receive the results:

NOTE: DATA statement used (Total process time):

      real time           3:12.07

      user cpu time       2:38.18

      system cpu time     31.65 seconds

      memory              1758.46k

      OS Memory           15864.00k

      Timestamp           09/08/2018 08:37:18 AM

      Step Count                        5  Switch Count  3

Which suggests that the process isn't actually using much memory at all!  Any suggestions would be appreciated.

The full code I use is: 

proc options;
run;

options fullstimer;
libname in xml 'Y:\Flexibility\Devices.xml';
data Device;
set in.Device (keep = device1 devicedescription devicecategory deviceregion devicepurpose price);
run;

proc export data = Device outfile='Y:\Device\Devices.txt' dbms=tab replace;
run;

[Tom]

Create an xml map that will tell SAS how to parse the XML file.