"debug_printf(L"reclaimed: %i\n", vs->al_src);" was added in "static LibError vsrc_reclaim(VSrc* vs)" in snd_mgr.cpp after "alSourceRewind(vs->al_src);	// stops the source",
"debug_printf(L"mimimi %f\n", timer_Time());" — in "static void al_src_free(ALuint al_src)" in snd_mngr.cpp after "debug_assert(alIsSource(al_src));"
Here is backtrace:
-----
reclaimed: 168016224
mimimi 21.125312
reclaimed: 168016224
mimimi 22.692365
reclaimed: 168016224
mimimi 23.796864
reclaimed: 168016224
mimimi 32.211710
reclaimed: 168020840
mimimi 32.211737
reclaimed: 168021320
mimimi 32.211758
reclaimed: 168021800
mimimi 32.211778
reclaimed: 168022280
mimimi 33.993115
reclaimed: 168016224
mimimi 35.023645
reclaimed: 168022280
mimimi 36.822282
reclaimed: 168016224
mimimi 41.932123
reclaimed: 168016224
mimimi 43.855198
reclaimed: 168016224
mimimi 50.767238
reclaimed: 168020840
mimimi 51.595668
reclaimed: 168021320
mimimi 51.595697
reclaimed: 168021800
mimimi 51.595717
reclaimed: 168022280
mimimi 52.428894
reclaimed: 168022760
mimimi 52.428922
reclaimed: 168016224
mimimi 53.208903
reclaimed: 168023720
mimimi 53.208935
reclaimed: 168023240
mimimi 53.989466
reclaimed: 168020840
mimimi 53.989493
reclaimed: 168021320
mimimi 53.989513
reclaimed: 168021800
mimimi 53.989533
reclaimed: 168024200
mimimi 53.989555
reclaimed: 168022280
mimimi 55.006712
reclaimed: 168022760
mimimi 55.006740
reclaimed: 168024680
mimimi 55.006762
reclaimed: 168025160
mimimi 55.006783
reclaimed: 168025640
mimimi 56.049307
reclaimed: 168023720
mimimi 56.049336
reclaimed: 168016224
mimimi 56.049358
reclaimed: 168026120
mimimi 57.232380
reclaimed: 168023240
mimimi 57.232410
reclaimed: 168020840
mimimi 57.232431
reclaimed: 168021320
mimimi 57.232452
reclaimed: 168024200
mimimi 57.232475
reclaimed: 168026600
mimimi 57.232497
reclaimed: 168021800
mimimi 58.223561
reclaimed: 168022280
mimimi 58.223589
reclaimed: 168022760
mimimi 58.223610
reclaimed: 168024680
mimimi 58.223630
reclaimed: 168025160
mimimi 58.223652
reclaimed: 168027080
mimimi 58.223673
reclaimed: 168027560
mimimi 58.223694
reclaimed: 168023720
mimimi 59.569064
reclaimed: 168025640
mimimi 59.569810
reclaimed: 168026120
mimimi 60.502635
reclaimed: 168023240
mimimi 60.502662
reclaimed: 168020840
mimimi 60.502686
reclaimed: 168016224
mimimi 61.332296
reclaimed: 168021800
mimimi 61.332326
reclaimed: 168022280
mimimi 61.332348
reclaimed: 168023720
mimimi 62.326538
reclaimed: 168026120
mimimi 65.844541
reclaimed: 168025640
mimimi 65.844569
reclaimed: 168022760
mimimi 65.844590
reclaimed: 168024680
mimimi 65.844611
reclaimed: 168027080
mimimi 67.589319
reclaimed: 168025160
mimimi 67.589350
reclaimed: 168026600
mimimi 67.589373
reclaimed: 168024200
mimimi 67.589395
reclaimed: 168021320
mimimi 67.589416
reclaimed: 168027560
mimimi 69.563205
reclaimed: 168023240
mimimi 69.563234
reclaimed: 168020840
mimimi 69.563255
reclaimed: 168016224
mimimi 69.563276
reclaimed: 168021800
mimimi 69.563297
reclaimed: 168023720
mimimi 70.789757
reclaimed: 168022280
mimimi 70.789786
reclaimed: 168024680
mimimi 70.789808
reclaimed: 168022760
mimimi 70.789829
reclaimed: 168025640
mimimi 70.789850
reclaimed: 168026120
mimimi 70.789872
reclaimed: 168029000
mimimi 72.567912
reclaimed: 168028520
mimimi 72.567942
reclaimed: 168028040
mimimi 72.567964
reclaimed: 168024200
mimimi 72.567995
reclaimed: 168026600
mimimi 72.568017
reclaimed: 168025160
mimimi 72.568039
reclaimed: 168027080
mimimi 72.568061
reclaimed: 168029480
mimimi 75.472261
reclaimed: 168021800
mimimi 75.472292
reclaimed: 168016224
mimimi 75.472313
reclaimed: 168020840
mimimi 75.472334
reclaimed: 168023240
mimimi 75.472355
reclaimed: 168027560
mimimi 75.472377
reclaimed: 168021320
mimimi 75.472398
reclaimed: 168029960
mimimi 77.457354
reclaimed: 168026120
mimimi 77.457383
reclaimed: 168025640
mimimi 77.457405
reclaimed: 168022760
mimimi 77.457427
reclaimed: 168024680
mimimi 77.457459
reclaimed: 168022280
mimimi 77.457480
reclaimed: 168023720
mimimi 77.457502
reclaimed: 168027080
mimimi 80.780498
reclaimed: 168025160
mimimi 80.780528
reclaimed: 168026600
mimimi 80.780550
reclaimed: 168024200
mimimi 80.780571
reclaimed: 168028040
mimimi 80.780592
reclaimed: 168028520
mimimi 80.780614
reclaimed: 168029000
mimimi 80.780636
reclaimed: 168030920
mimimi 84.838490
reclaimed: 168030440
mimimi 84.838521
reclaimed: 168021320
mimimi 84.838542
reclaimed: 168027560
mimimi 84.838564
reclaimed: 168023240
mimimi 84.838585
reclaimed: 168020840
mimimi 84.838606
reclaimed: 168016224
mimimi 84.838627
reclaimed: 168021800
mimimi 84.838649
reclaimed: 168029480
mimimi 84.838671
reclaimed: 168031400
mimimi 88.922303
reclaimed: 168023720
mimimi 88.922333
reclaimed: 168022280
mimimi 88.922355
reclaimed: 168024680
mimimi 88.922377
reclaimed: 168022760
mimimi 88.922399
reclaimed: 168025640
mimimi 88.922420
reclaimed: 168026120
mimimi 88.922442
reclaimed: 168029960
mimimi 88.922465
reclaimed: 168028040
mimimi 91.799005
reclaimed: 168028520
mimimi 91.799034
reclaimed: 168029000
mimimi 91.799056
reclaimed: 168031880
mimimi 91.799077
reclaimed: 168032360
mimimi 91.799098
reclaimed: 168024200
mimimi 91.799131
reclaimed: 168026600
mimimi 91.799153
reclaimed: 168025160
mimimi 91.799175
reclaimed: 168027080
mimimi 91.799198
reclaimed: 168029480
mimimi 96.109515
reclaimed: 168032840
mimimi 96.109548
reclaimed: 168033320
mimimi 96.109571
reclaimed: 168033800
mimimi 96.109594
reclaimed: 168030920
mimimi 96.109663
reclaimed: 168030440
mimimi 96.109688
reclaimed: 168021320
mimimi 96.109712
reclaimed: 168027560
mimimi 96.109738
reclaimed: 168023240
mimimi 96.109763
reclaimed: 168020840
mimimi 96.109791
reclaimed: 168016224
mimimi 96.109814
reclaimed: 168021800
mimimi 96.109838
reclaimed: 168029960
mimimi 99.787560
reclaimed: 168034280
mimimi 99.787590
reclaimed: 168056664
mimimi 99.787612
reclaimed: 168057144
mimimi 99.787633
reclaimed: 168031400
mimimi 99.787705
reclaimed: 168023720
mimimi 99.787735
reclaimed: 168022280
mimimi 99.787759
reclaimed: 168024680
mimimi 99.787783
reclaimed: 168022760
mimimi 99.787807
reclaimed: 168025640
mimimi 99.787831
reclaimed: 168026120
mimimi 99.787855
reclaimed: 168025160
mimimi 103.607287
reclaimed: 168027080
mimimi 103.607316
reclaimed: 168057624
mimimi 103.607338
reclaimed: 168058104
mimimi 103.607360
reclaimed: 168058584
mimimi 103.607382
reclaimed: 168059064
mimimi 103.607404
reclaimed: 168059544
mimimi 103.607426
reclaimed: 168028040
mimimi 103.607503
reclaimed: 168028520
mimimi 103.607528
reclaimed: 168029000
mimimi 103.607552
reclaimed: 168031880
mimimi 103.607578
reclaimed: 168032360
mimimi 103.607603
reclaimed: 168024200
mimimi 103.607628
reclaimed: 168026600
mimimi 103.607654
reclaimed: 168023240
mimimi 110.062506
reclaimed: 168020840
mimimi 110.062535
reclaimed: 168016224
mimimi 110.062556
reclaimed: 168021800
mimimi 110.062576
reclaimed: 168060024
mimimi 110.062599
reclaimed: 168060504
mimimi 110.062622
reclaimed: 168060984
mimimi 110.062644
reclaimed: 168061464
mimimi 110.062666
reclaimed: 168061944
mimimi 110.062689
reclaimed: 168029480
mimimi 110.062765
reclaimed: 168032840
mimimi 110.062792
reclaimed: 168033320
mimimi 110.062817
reclaimed: 168033800
mimimi 110.062843
reclaimed: 168030920
mimimi 110.062868
reclaimed: 168030440
mimimi 110.062894
reclaimed: 168021320
mimimi 110.062918
reclaimed: 168027560
mimimi 110.062944
reclaimed: 168026120
mimimi 113.036770
reclaimed: 168062424
mimimi 113.036802
reclaimed: 168062904
mimimi 113.036825
reclaimed: 168063384
mimimi 113.036847
reclaimed: 168063864
mimimi 113.036870
reclaimed: 168064344
mimimi 113.036893
reclaimed: 168029960
mimimi 113.036970
reclaimed: 168034280
mimimi 113.036995
reclaimed: 168056664
mimimi 113.037021
reclaimed: 168057144
mimimi 113.037046
reclaimed: 168031400
mimimi 113.037071
reclaimed: 168023720
mimimi 113.037095
reclaimed: 168022280
mimimi 113.037120
reclaimed: 168024680
mimimi 113.037145
reclaimed: 168022760
mimimi 113.037170
reclaimed: 168025640
mimimi 113.037196
reclaimed: 168029000
mimimi 118.248896
reclaimed: 168031880
mimimi 118.248926
reclaimed: 168032360
mimimi 118.248948
reclaimed: 168024200
mimimi 118.248969
reclaimed: 168026600
mimimi 118.248990
reclaimed: 168064824
mimimi 118.249013
reclaimed: 168025160
mimimi 118.249097
reclaimed: 168027080
mimimi 118.249122
reclaimed: 168057624
mimimi 118.249148
reclaimed: 168058104
mimimi 118.249174
reclaimed: 168058584
mimimi 118.249200
reclaimed: 168059064
mimimi 118.249226
reclaimed: 168059544
mimimi 118.249253
reclaimed: 168028040
mimimi 118.249279
reclaimed: 168028520
mimimi 118.249305
reclaimed: 168065304
mimimi 121.022840
reclaimed: 168027560
mimimi 121.022870
reclaimed: 168021320
mimimi 121.022892
reclaimed: 168030440
mimimi 121.022914
reclaimed: 168030920
mimimi 121.022937
reclaimed: 168033800
mimimi 121.022959
reclaimed: 168033320
mimimi 121.022981
reclaimed: 168023240
mimimi 121.023069
reclaimed: 168020840
mimimi 121.023094
reclaimed: 168016224
mimimi 121.023119
reclaimed: 168021800
mimimi 121.023145
reclaimed: 168060024
mimimi 121.023173
reclaimed: 168060504
mimimi 121.023200
reclaimed: 168060984
mimimi 121.023227
reclaimed: 168061464
mimimi 121.023255
reclaimed: 168061944
mimimi 121.023283
reclaimed: 168029480
mimimi 121.023310
reclaimed: 168032840
mimimi 121.023337
reclaimed: 168069624
mimimi 123.792488
reclaimed: 168069624
mimimi 123.792522
snd_mgr.cpp(492): Assertion failed: "0"
Assertion failed: "0"
Location: snd_mgr.cpp:492 (srcs_remove)

Call stack:

(0x84a6dcb) ./pyrogenesis_dbg() [0x84a6dcb]
(0x846930b) ./pyrogenesis_dbg() [0x846930b]
(0x84696f9) ./pyrogenesis_dbg() [0x84696f9]
(0x8469a1d) ./pyrogenesis_dbg() [0x8469a1d]
(0x8493340) ./pyrogenesis_dbg() [0x8493340]
(0x84936da) ./pyrogenesis_dbg() [0x84936da]
(0x84952f7) ./pyrogenesis_dbg() [0x84952f7]
(0x8494614) ./pyrogenesis_dbg() [0x8494614]
(0x848a611) ./pyrogenesis_dbg() [0x848a611]
(0x848a835) ./pyrogenesis_dbg() [0x848a835]
(0x8494baa) ./pyrogenesis_dbg() [0x8494baa]
(0x8495b3d) ./pyrogenesis_dbg() [0x8495b3d]
(0x8495cec) ./pyrogenesis_dbg() [0x8495cec]
(0x8495bad) ./pyrogenesis_dbg() [0x8495bad]
(0x8495c0e) ./pyrogenesis_dbg() [0x8495c0e]
(0x820bbf8) ./pyrogenesis_dbg() [0x820bbf8]

errno = 0 (?)
OS error = ?


Aborted
------
I'm attaching short dump from my python console to make things clear
>>> r0 = re.findall("reclaimed: ([0-9]+)\nmimimi ([0-9]+\.[0-9]+)\nreclaimed: ([0-9]+)\nmimimi ([0-9]+\.[0-9]+)", n)
>>> r1 = re.findall("\nreclaimed: ([0-9]+)\nmimimi ([0-9]+\.[0-9]+)\nreclaimed: ([0-9]+)\nmimimi ([0-9]+\.[0-9]+)", n)
>>> r = r0+r1
>>> filter(lambda x: x[0]==x[2], r)
[('168016224', '21.125312', '168016224', '22.692365'), ('168016224', '23.796864', '168016224', '32.211710'), ('168016224', '41.932123', '168016224', '43.855198'), ('168016224', '22.692365', '168016224', '23.796864'), ('168016224', '43.855198', '168016224', '50.767238'), ('168069624', '123.792488', '168069624', '123.792522')]
So there was only one second when same resource was asked twice and it was exactly that second when the application crashed.
Sorry for taking your time if the conclusion was already obvious for you :3