full shell session pasted by alexshendi on Sun May 8 23:26:58 2016

$ ./fem -:g magnet6.1

	0x000000000006b940

	0x000000000008d940

	0x000000000009d940

	0x00000000000a9940

	0x00000000000e64a8

	0x00000000000fca30

	0x000000000010ccf8

	0x000000000011cd20

	0x000000000012b990

	0x00000000001379e8

	0x0000000000141cf0

	0x000000000010d098

	0x000000000012b098

	0x0000000000135098

	0x000000000013d098

	0x0000000000145098

	0x000000000014d098

	0x0000000000153098

	0x00000000001c7c68

	0x00000000001d6a58

	0x00000000001f41b0

	0x00000000001fbb98

	0x00000000001ff3f8

	0x0000000000207cb8

	0x000000000020a820

	0x0000000000214e48

	0x0000000000218a78

	0x0000000000226b68

	0x0000000000229a60

	0x0000000000229e08

	0x0000000000233db8

	0x0000000000242a08

	0x0000000000243f00

	0x00000000002442a8

	0x0000000000259758

	0x000000000025e4c8

	0x000000000025f288

	0x000000000027aae8

	0x000000000028e300

	0x00000000004d5868

	0x0000000000661650

	0x00000000006d42c0

	0x00000000006f52f8

	0x00000000006ff368

	0x0000000000000000
^C
$ exit

Expected output added by sjamaan on Sun May 8 23:28:50 2016

[GC] level  1   gcs(minor)  247 gcs(major)  1
[GC] stack      0x00007fff7bc54f00      0x000000007bc54e10      0x00007fff7bd54f00
[GC]  from      0x00007fd4d6a6e010      0x00007fd4d6aade88      0x00007fd4d6aee010      0x000000000003fe78
[GC]    to      0x00007fd4d6aef010      0x00007fd4d6aef010      0x00007fd4d6b6f010 
[GC] 0 locatives (from 32)
[GC] level  1   gcs(minor)  252 gcs(major)  2
[GC] stack      0x00007fff7bc54f00      0x000000007bc54e00      0x00007fff7bd54f00
[GC]  from      0x00007fd4d6aef010      0x00007fd4d6b2ee88      0x00007fd4d6b6f010      0x000000000003fe78
[GC]    to      0x00007fd4d6a6e010      0x00007fd4d6a6e010      0x00007fd4d6aee010 
[GC] 0 locatives (from 32)
[GC] level  1   gcs(minor)  252 gcs(major)  3
[GC] stack      0x00007fff7bc54f00      0x000000007bc54de0      0x00007fff7bd54f00
[GC]  from      0x00007fd4d6a6e010      0x00007fd4d6aade70      0x00007fd4d6aee010      0x000000000003fe60
[GC]    to      0x00007fd4d6aef010      0x00007fd4d6aef010      0x00007fd4d6b6f010 
[GC] 0 locatives (from 32)