Sample 1
    +  2683 gnc_prices_dialog_get_quotes_clicked  (in libgnc-gnome.dylib) + 1600  [0x103517890]
    +    2683 scm_call_2  (in libguile-2.0.22.dylib) + 61  [0x1035fab1d]
    +      2683 scm_c_vm_run  (in libguile-2.0.22.dylib) + 121  [0x103684669]
    +        2683 vm_regular_engine  (in libguile-2.0.22.dylib) + 7488  [0x103687610]
    +          2683 _wrap_gnc_price_set_time64  (in libgncmod-engine.dylib) + 429  [0x1068cec0d]
    +            2683 gnc_price_set_time64  (in libgncmod-engine.dylib) + 89  [0x10682f869]
    +              2683 qof_event_generate_internal(QofInstance_s*, int, void*)  (in libgncmod-engine.dylib) + 174  [0x10686fa1e]
    +                2683 gnc_tree_model_price_event_handler  (in libgncmod-gnome-utils.dylib) + 135  [0x1065d9ed7]
    +                  2683 gnc_tree_model_price_do_deletions  (in libgncmod-gnome-utils.dylib) + 687  [0x1065dbc0f]
    +                    2683 g_signal_emit  (in libgobject-2.0.0.dylib) + 134  [0x10445b316]
    +                      2683 g_signal_emit_valist  (in libgobject-2.0.0.dylib) + 2288  [0x10445ac30]
    +                        2683 signal_emit_unlocked_R  (in libgobject-2.0.0.dylib) + 1865  [0x104459db9]
    +                          2683 g_closure_invoke  (in libgobject-2.0.0.dylib) + 306  [0x104442e42]
    +                            2683 gtk_tree_model_filter_row_changed  (in libgtk-3.0.dylib) + 647  [0x103c420f7]
    +                              2683 gtk_tree_model_filter_update_children  (in libgtk-3.0.dylib) + 125  [0x103c42b3d]
    +                                2679 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 973  [0x103c417ad]
    +                                ! 2678 gnc_tree_model_price_iter_next  (in libgncmod-gnome-utils.dylib) + 558  [0x1065dd18e]
    +                                ! : 2548 gnc_pricedb_nth_price  (in libgncmod-engine.dylib) + 465  [0x106832011]
    +                                ! : | 663 compare_prices_by_date  (in libgncmod-engine.dylib) + 108  [0x10682fccc]
    +                                ! : | + 509 qof_instance_get_guid  (in libgncmod-engine.dylib) + 23,156,...  [0x106870917,0x10687099c,...]
    +                                ! : | + 80 qof_instance_get_guid  (in libgncmod-engine.dylib) + 149  [0x106870995]
    +                                ! : | + ! 80 g_type_check_instance_is_a  (in libgobject-2.0.0.dylib) + 162,121,...  [0x1044622a2,0x104462279,...]
    +                                ! : | + 61 qof_instance_get_guid  (in libgncmod-engine.dylib) + 269  [0x106870a0d]
    +                                ! : | + ! 61 g_type_instance_get_private  (in libgobject-2.0.0.dylib) + 6,0,...  [0x104463d36,0x104463d30,...]
    +                                ! : | + 10 qof_entity_get_guid  (in libgncmod-engine.dylib) + 0,4  [0x106870a40,0x106870a44]
    +                                ! : | + 3 DYLD-STUB$$g_type_instance_get_private  (in libgncmod-engine.dylib) + 0  [0x10693e39c]
    +                                ! : | 606 compare_prices_by_date  (in libgncmod-engine.dylib) + 135  [0x10682fce7]
    +                                ! : | + 428 qof_instance_get_guid  (in libgncmod-engine.dylib) + 23,156,...  [0x106870917,0x10687099c,...]
    +                                ! : | + 100 qof_instance_get_guid  (in libgncmod-engine.dylib) + 149  [0x106870995]
    +                                ! : | + ! 100 g_type_check_instance_is_a  (in libgobject-2.0.0.dylib) + 162,121,...  [0x1044622a2,0x104462279,...]
    +                                ! : | + 68 qof_instance_get_guid  (in libgncmod-engine.dylib) + 269  [0x106870a0d]
    +                                ! : | + ! 68 g_type_instance_get_private  (in libgobject-2.0.0.dylib) + 6,233,...  [0x104463d36,0x104463e19,...]
    +                                ! : | + 9 qof_entity_get_guid  (in libgncmod-engine.dylib) + 0,4,...  [0x106870a40,0x106870a44,...]
    +                                ! : | + 1 DYLD-STUB$$g_type_instance_get_private  (in libgncmod-engine.dylib) + 0  [0x10693e39c]
    +                                ! : | 238 compare_prices_by_date  (in libgncmod-engine.dylib) + 59,4,...  [0x10682fc9b,0x10682fc64,...]
    +                                ! : | 225 compare_prices_by_date  (in libgncmod-engine.dylib) + 116  [0x10682fcd4]
    +                                ! : | + 225 qof_instance_get_type  (in libgncmod-engine.dylib) + 11,19,...  [0x10687018b,0x106870193,...]
    +                                ! : | 223 compare_prices_by_date  (in libgncmod-engine.dylib) + 89  [0x10682fcb9]
    +                                ! : | + 223 qof_instance_get_type  (in libgncmod-engine.dylib) + 11,19,...  [0x10687018b,0x106870193,...]
    +                                ! : | 194 compare_prices_by_date  (in libgncmod-engine.dylib) + 146  [0x10682fcf2]
    +                                ! : | + 194 guid_compare  (in libgncmod-engine.dylib) + 54,32,...  [0x106843b56,0x106843b40,...]
    +                                ! : | 147 compare_prices_by_date  (in libgncmod-engine.dylib) + 76  [0x10682fcac]
    +                                ! : | + 147 timespec_cmp  (in libgncmod-engine.dylib) + 406,255,...  [0x1067e6456,0x1067e63bf,...]
    +                                ! : | 134 compare_prices_by_date  (in libgncmod-engine.dylib) + 127  [0x10682fcdf]
    +                                ! : | + 134 g_type_check_instance_cast  (in libgobject-2.0.0.dylib) + 32,121,...  [0x1044624b0,0x104462509,...]
    +                                ! : | 108 compare_prices_by_date  (in libgncmod-engine.dylib) + 100  [0x10682fcc4]
    +                                ! : | + 108 g_type_check_instance_cast  (in libgobject-2.0.0.dylib) + 121,8,...  [0x104462509,0x104462498,...]
    +                                ! : | 10 DYLD-STUB$$g_type_check_instance_cast  (in libgncmod-engine.dylib) + 0  [0x10693e372]
    +                                ! : 129 gnc_pricedb_nth_price  (in libgncmod-engine.dylib) + 460,432,...  [0x10683200c,0x106831ff0,...]
    +                                ! : 1 gnc_pricedb_nth_price  (in libgncmod-engine.dylib) + 557  [0x10683206d]
    +                                ! :   1 qof_log_check  (in libgncmod-engine.dylib) + 49  [0x106879611]
    +                                ! :     1 g_strdup  (in libglib-2.0.0.dylib) + 60  [0x1038733dc]
    +                                ! :       1 _platform_memmove$VARIANT$Haswell  (in libsystem_platform.dylib) + 151  [0x7fffa2805f37]
    +                                ! 1 gtk_tree_model_iter_next  (in libgtk-3.0.dylib) + 120  [0x103c3dab8]
    +                                !   1 g_type_check_instance_is_a  (in libgobject-2.0.0.dylib) + 0  [0x104462200]
    +                                1 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 665  [0x103c41679]
    +                                ! 1 gtk_tree_model_filter_real_visible  (in libgtk-3.0.dylib) + 19  [0x103c443b3]
    +                                1 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 683  [0x103c4168b]
    +                                ! 1 g_slice_alloc  (in libglib-2.0.0.dylib) + 143  [0x103870d1f]
    +                                1 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 781  [0x103c416ed]
    +                                ! 1 g_sequence_append  (in libglib-2.0.0.dylib) + 86  [0x10386d2f6]
    +                                !   1 node_insert_before  (in libglib-2.0.0.dylib) + 52  [0x10386d384]
    +                                1 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 793  [0x103c416f9]
    +                                  1 g_sequence_append  (in libglib-2.0.0.dylib) + 38  [0x10386d2c6]
    +                                    1 g_slice_alloc0  (in libglib-2.0.0.dylib) + 34  [0x1038717a2]
    +                                      1 _platform_bzero$VARIANT$Haswell  (in libsystem_platform.dylib) + 10  [0x7fffa2806baa]

Sample 2:
    +  2666 gnc_prices_dialog_get_quotes_clicked  (in libgnc-gnome.dylib) + 1600  [0x1093a3890]
    +    2666 scm_call_2  (in libguile-2.0.22.dylib) + 61  [0x109486b1d]
    +      2666 scm_c_vm_run  (in libguile-2.0.22.dylib) + 121  [0x109510669]
    +        2666 vm_regular_engine  (in libguile-2.0.22.dylib) + 7488  [0x109513610]
    +          2666 _wrap_gnc_pricedb_add_price  (in libgncmod-engine.dylib) + 775  [0x10c75f6b7]
    +            2666 gnc_pricedb_add_price  (in libgncmod-engine.dylib) + 167  [0x10c6bd447]
    +              2666 add_price  (in libgncmod-engine.dylib) + 751  [0x10c6bc6df]
    +                2666 qof_event_generate_internal(QofInstance_s*, int, void*)  (in libgncmod-engine.dylib) + 174  [0x10c6fca1e]
    +                  2666 gnc_tree_model_price_event_handler  (in libgncmod-gnome-utils.dylib) + 1354  [0x10c46c39a]
    +                    2666 g_signal_emit  (in libgobject-2.0.0.dylib) + 134  [0x10a2e8316]
    +                      2666 g_signal_emit_valist  (in libgobject-2.0.0.dylib) + 2288  [0x10a2e7c30]
    +                        2666 signal_emit_unlocked_R  (in libgobject-2.0.0.dylib) + 1865  [0x10a2e6db9]
    +                          2666 g_closure_invoke  (in libgobject-2.0.0.dylib) + 306  [0x10a2cfe42]
    +                            2666 gtk_tree_model_filter_row_changed  (in libgtk-3.0.dylib) + 647  [0x109ad20f7]
    +                              2666 gtk_tree_model_filter_update_children  (in libgtk-3.0.dylib) + 125  [0x109ad2b3d]
    +                                2664 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 973  [0x109ad17ad]
    +                                ! 2663 gnc_tree_model_price_iter_next  (in libgncmod-gnome-utils.dylib) + 558  [0x10c46f18e]
    +                                ! : 2522 gnc_pricedb_nth_price  (in libgncmod-engine.dylib) + 465  [0x10c6bf011]
    +                                ! : | 620 compare_prices_by_date  (in libgncmod-engine.dylib) + 108  [0x10c6bcccc]
    +                                ! : | + 457 qof_instance_get_guid  (in libgncmod-engine.dylib) + 23,156,...  [0x10c6fd917,0x10c6fd99c,...]
    +                                ! : | + 80 qof_instance_get_guid  (in libgncmod-engine.dylib) + 149  [0x10c6fd995]
    +                                ! : | + ! 80 g_type_check_instance_is_a  (in libgobject-2.0.0.dylib) + 162,121,...  [0x10a2ef2a2,0x10a2ef279,...]
    +                                ! : | + 64 qof_instance_get_guid  (in libgncmod-engine.dylib) + 269  [0x10c6fda0d]
    +                                ! : | + ! 64 g_type_instance_get_private  (in libgobject-2.0.0.dylib) + 6,113,...  [0x10a2f0d36,0x10a2f0da1,...]
    +                                ! : | + 11 qof_entity_get_guid  (in libgncmod-engine.dylib) + 4,0  [0x10c6fda44,0x10c6fda40]
    +                                ! : | + 8 DYLD-STUB$$g_type_instance_get_private  (in libgncmod-engine.dylib) + 0  [0x10c7cb39c]
    +                                ! : | 566 compare_prices_by_date  (in libgncmod-engine.dylib) + 135  [0x10c6bcce7]
    +                                ! : | + 420 qof_instance_get_guid  (in libgncmod-engine.dylib) + 23,156,...  [0x10c6fd917,0x10c6fd99c,...]
    +                                ! : | + 63 qof_instance_get_guid  (in libgncmod-engine.dylib) + 149  [0x10c6fd995]
    +                                ! : | + ! 63 g_type_check_instance_is_a  (in libgobject-2.0.0.dylib) + 162,121,...  [0x10a2ef2a2,0x10a2ef279,...]
    +                                ! : | + 62 qof_instance_get_guid  (in libgncmod-engine.dylib) + 269  [0x10c6fda0d]
    +                                ! : | + ! 62 g_type_instance_get_private  (in libgobject-2.0.0.dylib) + 6,0,...  [0x10a2f0d36,0x10a2f0d30,...]
    +                                ! : | + 14 qof_entity_get_guid  (in libgncmod-engine.dylib) + 0,4  [0x10c6fda40,0x10c6fda44]
    +                                ! : | + 7 DYLD-STUB$$g_type_instance_get_private  (in libgncmod-engine.dylib) + 0  [0x10c7cb39c]
    +                                ! : | 271 compare_prices_by_date  (in libgncmod-engine.dylib) + 59,11,...  [0x10c6bcc9b,0x10c6bcc6b,...]
    +                                ! : | 235 compare_prices_by_date  (in libgncmod-engine.dylib) + 89  [0x10c6bccb9]
    +                                ! : | + 235 qof_instance_get_type  (in libgncmod-engine.dylib) + 11,19,...  [0x10c6fd18b,0x10c6fd193,...]
    +                                ! : | 199 compare_prices_by_date  (in libgncmod-engine.dylib) + 116  [0x10c6bccd4]
    +                                ! : | + 199 qof_instance_get_type  (in libgncmod-engine.dylib) + 11,19,...  [0x10c6fd18b,0x10c6fd193,...]
    +                                ! : | 182 compare_prices_by_date  (in libgncmod-engine.dylib) + 146  [0x10c6bccf2]
    +                                ! : | + 182 guid_compare  (in libgncmod-engine.dylib) + 54,32,...  [0x10c6d0b56,0x10c6d0b40,...]
    +                                ! : | 170 compare_prices_by_date  (in libgncmod-engine.dylib) + 127  [0x10c6bccdf]
    +                                ! : | + 170 g_type_check_instance_cast  (in libgobject-2.0.0.dylib) + 32,121,...  [0x10a2ef4b0,0x10a2ef509,...]
    +                                ! : | 135 compare_prices_by_date  (in libgncmod-engine.dylib) + 76  [0x10c6bccac]
    +                                ! : | + 135 timespec_cmp  (in libgncmod-engine.dylib) + 406,407,...  [0x10c673456,0x10c673457,...]
    +                                ! : | 135 compare_prices_by_date  (in libgncmod-engine.dylib) + 100  [0x10c6bccc4]
    +                                ! : | + 135 g_type_check_instance_cast  (in libgobject-2.0.0.dylib) + 8,121,...  [0x10a2ef498,0x10a2ef509,...]
    +                                ! : | 8 DYLD-STUB$$g_type_check_instance_cast  (in libgncmod-engine.dylib) + 0  [0x10c7cb372]
    +                                ! : | 1 qof_entity_get_guid  (in libgncmod-engine.dylib) + 10  [0x10c6fda4a]
    +                                ! : 141 gnc_pricedb_nth_price  (in libgncmod-engine.dylib) + 460,457,...  [0x10c6bf00c,0x10c6bf009,...]
    +                                ! 1 gnc_tree_model_price_iter_next  (in libgncmod-gnome-utils.dylib) + 538  [0x10c46f17a]
    +                                !   1 gnc_price_get_commodity  (in libgncmod-engine.dylib) + 0  [0x10c6bba00]
    +                                1 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 665  [0x109ad1679]
    +                                ! 1 gtk_tree_model_filter_real_visible  (in libgtk-3.0.dylib) + 0  [0x109ad43a0]
    +                                1 gtk_tree_model_filter_build_level  (in libgtk-3.0.dylib) + 781  [0x109ad16ed]
    +                                  1 g_sequence_append  (in libglib-2.0.0.dylib) + 86  [0x1096fc2f6]
    +                                    1 node_insert_before  (in libglib-2.0.0.dylib) + 64  [0x1096fc390]
