(gdb) bt #0 __GI___libc_free (mem=0x271e629c) at malloc.c:2929 #1 0xb7dc1f8d in value_destroy (v=0x80defc8, width=2000) at /home/john/pspp-master/src/data/value.h:150 #2 0xb7dc2b3d in destroy_long_strings (proto=0x80de8b8, first=0, last=2, values=0x80defc8) at /home/john/pspp-master/src/data/caseproto.c:399 #3 0xb7dc2777 in caseproto_destroy_values (proto=0x80de8b8, values=0x80defc8) at /home/john/pspp-master/src/data/caseproto.c:296 #4 0xb7dc3bd4 in case_unref__ (c=0x80defc0) at /home/john/pspp-master/src/data/case.c:452 #5 0xb7dc6f90 in case_unref (c=0x80defc0) at /home/john/pspp-master/src/data/case.h:142 #6 0xb7dc7600 in casewindow_memory_destroy (cwm_=0x80b32e8) at /home/john/pspp-master/src/data/casewindow.c:238 #7 0xb7dc7201 in casewindow_destroy (cw=0x8056ef0) at /home/john/pspp-master/src/data/casewindow.c:101 #8 0xb7dc803a in casereader_window_destroy (reader=0x80c6048, window_=0x8056ef0) at /home/john/pspp-master/src/data/casewriter.c:284 #9 0xb7dc6d8a in random_reader_destroy (reader=0x80c6048, br_=0x80af9a8) at /home/john/pspp-master/src/data/casereader.c:536 #10 0xb7dc656e in casereader_destroy (reader=0x80c6048) at /home/john/pspp-master/src/data/casereader.c:94 #11 0xb7f1f607 in save_trans_free (aux=0x80cb568) at /home/john/pspp-master/src/language/stats/regression.c:152 #12 0xb7df8101 in trns_chain_destroy (chain=0x80584e0) at /home/john/pspp-master/src/data/transformations.c:102 #13 0xb7dcff4b in proc_cancel_all_transformations (ds=0x8057960) at /home/john/pspp-master/src/data/dataset.c:806 #14 0xb7dcefb9 in dataset_clear (ds=0x8057960) at /home/john/pspp-master/src/data/dataset.c:225 #15 0xb7dceec0 in dataset_destroy (ds=0x8057960) at /home/john/pspp-master/src/data/dataset.c:201 #16 0xb7de8e6d in session_destroy (s=0x8057928) at /home/john/pspp-master/src/data/session.c:71 #17 0x0804a619 in main (argc=2, argv=0xbffffaa4) at /home/john/pspp-master/src/ui/terminal/main.c:164