Task 1591014007

Name 8a_hal_v_hal_8aa_4jp9704_d173_0001_1_SAVE_ALL_OUT_3010113_11_0
Workunit 1415493996
Created 3 Dec 2024, 8:17:07 UTC
Sent 3 Dec 2024, 8:45:26 UTC
Report deadline 6 Dec 2024, 8:45:26 UTC
Received 3 Dec 2024, 10:00:34 UTC
Server state Over
Outcome Computation error
Client state Compute error
Exit status -1073741819 (0xC0000005) STATUS_ACCESS_VIOLATION
Computer ID 6304698
Run time 27 min 9 sec
CPU time 25 min 28 sec
Validate state Invalid
Credit 0.00
Device peak FLOPS 3.87 GFLOPS
Application version Rosetta Beta v6.06
windows_x86_64
Peak working set size 284.43 MB
Peak swap size 252.25 MB
Peak disk usage 0.09 MB

Stderr output

<core_client_version>8.0.2</core_client_version>
<![CDATA[
<message>
(unknown error) (317) - exit code 3221225477 (0xc0000005)</message>
<stderr_txt>
command: projects/boinc.bakerlab.org_rosetta/rosetta_beta_6.06_windows_x86_64.exe @8a_hal_v_hal_8aa_4jp9704_d173_0001_1.flags -nstruct 10000 -cpu_run_time 28800 -boinc:max_nstruct 20000 -checkpoint_interval 120 -mute all -database minirosetta_database -in::file::zip minirosetta_database.zip -boinc::watchdog -boinc::cpu_run_timeout 36000 -run::rng mt19937
Using database: database_f5ae1de8e1\database


Unhandled Exception Detected...

- Unhandled Exception Record -
Reason: Access Violation (0xc0000005) at address 0x00007FF701481EF0 read attempt to address 0xFFFFFFFE

Engaging BOINC Windows Runtime Debugger...



********************


BOINC Windows Runtime Debugger Version 7.9.0


Dump Timestamp    : 12/03/24 10:59:37
Install Directory : C:\Program Files\BOINC\
Data Directory    : C:\ProgramData\BOINC
Project Symstore  : https://boinc.bakerlab.org/rosetta/symstore
LoadLibraryA( C:\ProgramData\BOINC\dbghelp.dll ): GetLastError = 126
Loaded Library    : dbghelp.dll
LoadLibraryA( C:\ProgramData\BOINC\symsrv.dll ): GetLastError = 126
LoadLibraryA( symsrv.dll ): GetLastError = 126
LoadLibraryA( C:\ProgramData\BOINC\srcsrv.dll ): GetLastError = 126
LoadLibraryA( srcsrv.dll ): GetLastError = 126
LoadLibraryA( C:\ProgramData\BOINC\version.dll ): GetLastError = 126
Loaded Library    : version.dll
Debugger Engine   : 4.0.5.0
Symbol Search Path: C:\ProgramData\BOINC\slots\6;C:\ProgramData\BOINC\projects\boinc.bakerlab.org_rosetta;srv*C:\ProgramData\BOINC\projects\boinc.bakerlab.org_rosetta\symbols*http://msdl.microsoft.com/download/symbols;srv*C:\ProgramData\BOINC\projects\boinc.bakerlab.org_rosetta\symbols*https://boinc.bakerlab.org/rosetta/symstore


ModLoad: 00000000fe020000 00000000062b2000 C:\ProgramData\BOINC\projects\boinc.bakerlab.org_rosetta\rosetta_beta_6.06_windows_x86_64.exe (-exported- Symbols Loaded)

ModLoad: 0000000064590000 0000000000217000 C:\Windows\SYSTEM32\ntdll.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 000000002c970000 000000000001a000 C:\Program Files\Norton\Suite\aswhook.dll (24.11.9615.0) (-nosymbols- Symbols Loaded)
    File Version          : 24.11.9615.0
    Company Name          : NortonLifeLock Inc.
    Product Name          : Norton
    Product Version       : 24.11.9615.0

ModLoad: 0000000063600000 00000000000c4000 C:\Windows\System32\KERNEL32.DLL (6.2.22621.4391) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000061a80000 00000000003ba000 C:\Windows\System32\KERNELBASE.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000062180000 0000000000111000 C:\Windows\System32\ucrtbase.dll (6.2.22621.3593) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.3593 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.3593

ModLoad: 00000000633a0000 00000000000b2000 C:\Windows\System32\ADVAPI32.dll (6.2.22621.4391) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000062a50000 00000000000a7000 C:\Windows\System32\msvcrt.dll (7.0.22621.2506) (-exported- Symbols Loaded)
    File Version          : 7.0.22621.2506 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 7.0.22621.2506

ModLoad: 00000000622a0000 00000000000a7000 C:\Windows\System32\sechost.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.1 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.1

ModLoad: 0000000061ec0000 0000000000028000 C:\Windows\System32\bcrypt.dll (6.2.22621.2506) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 00000000636d0000 0000000000114000 C:\Windows\System32\RPCRT4.dll (6.2.22621.4249) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000062eb0000 0000000000071000 C:\Windows\System32\WS2_32.dll (6.2.22621.1) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000063cd0000 0000000000878000 C:\Windows\System32\SHELL32.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000061870000 000000000009a000 C:\Windows\System32\msvcp_win.dll (6.2.22621.3374) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.3374 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.3374

ModLoad: 0000000062f30000 00000000001ae000 C:\Windows\System32\USER32.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000061a50000 0000000000026000 C:\Windows\System32\win32u.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4541 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.4541

ModLoad: 0000000062c60000 0000000000029000 C:\Windows\System32\GDI32.dll (6.2.22621.4036) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4036 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.4036

ModLoad: 0000000062060000 000000000011b000 C:\Windows\System32\gdi32full.dll (6.2.22621.4391) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4391 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.4391

ModLoad: 0000000023870000 0000000000100000 C:\Windows\SYSTEM32\OPENGL32.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4541 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.4541

ModLoad: 0000000023800000 000000000002d000 C:\Windows\SYSTEM32\GLU32.dll (6.2.22621.2506) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000063840000 000000000038f000 C:\Windows\System32\combase.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 0000000061010000 000000000000c000 C:\Windows\SYSTEM32\CRYPTBASE.DLL (6.2.22621.1) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.1 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.1

ModLoad: 000000005eb40000 0000000000037000 C:\Windows\SYSTEM32\dxcore.dll (6.2.22621.4541) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4541 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.4541

ModLoad: 00000000619d0000 000000000007b000 C:\Windows\System32\bcryptPrimitives.dll (6.2.22621.4317) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4317 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.4317

ModLoad: 0000000060870000 0000000000018000 C:\Windows\SYSTEM32\kernel.appcore.dll (6.2.22621.3958) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.3958 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.3958

ModLoad: 0000000060980000 0000000000034000 C:\Windows\SYSTEM32\ntmarta.dll (6.2.22621.1) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.4599 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Betriebssystem Microsoft&#174; Windows&#174;
    Product Version       : 10.0.22621.4599

ModLoad: 000000005f3c0000 0000000000232000 C:\Windows\SYSTEM32\dbghelp.dll (6.2.22621.3593) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.3593 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.3593

ModLoad: 0000000062b80000 00000000000d7000 C:\Windows\System32\OLEAUT32.dll (6.2.22621.3672) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.3672 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.3672

ModLoad: 000000005bec0000 000000000000a000 C:\Windows\SYSTEM32\version.dll (6.2.22621.1) (-exported- Symbols Loaded)
    File Version          : 10.0.22621.1 (WinBuild.160101.0800)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft&#174; Windows&#174; Operating System
    Product Version       : 10.0.22621.1



*** Dump of the Process Statistics: ***

- I/O Operations Counters -
Read: 10999, Write: 5230, Other 90129

- I/O Transfers Counters -
Read: 34028634, Write: 12219856, Other 163422

- Paged Pool Usage -
QuotaPagedPoolUsage: 16984, QuotaPeakPagedPoolUsage: 332624
QuotaNonPagedPoolUsage: 264536064, QuotaPeakNonPagedPoolUsage: 16856

- Virtual Memory Usage -
VirtualSize: 173351, PeakVirtualSize: 486367232

- Pagefile Usage -
PagefileUsage: 264544256, PeakPagefileUsage: 264536064

- Working Set Size -
WorkingSetSize: 332896, PeakWorkingSetSize: 224239616, PageFaultCount: 298242048

*** Dump of thread ID 6592 (state: Waiting): ***

- Information -
Status: Wait Reason: UserRequest, , Kernel Time: 0.000000, User Time: 0.000000, Wait Time: 2346147.000000

- Unhandled Exception Record -
Reason: Access Violation (0xc0000005) at address 0x00007FF701481EF0 read attempt to address 0xFFFFFFFE

- Registers -
rax=0000000000000006 rbx=00000000ffa455f0 rcx=0000000000000005 rdx=000000006ae4b552 rsi=00000000ac45f2a0 rdi=0000000000000015
r8=0000000062280930 r9=00000000a3bff6f8 r10=0000000050d77370 r11=0000000000000246 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000 rip=0000000001481ef0 rsp=00000000a3bff660 rbp=0000000000000000
cs=0033  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010206

- Callstack -
ChildEBP RetAddr  Args to Child
a3bff690 ffa4371e 00000000 00000000 00000000 61aa92fb rosetta_beta_6.06_windows_x86_6!xmlUTF8Strsub+0x0 
a3bff6d0 ffa45680 00000000 621a0475 00000000 00000000 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb14version_numberEv+0x0 
a3bff710 621fe3ab 00000006 00000000 ffa455f0 80000006 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb14version_numberEv+0x0 
a3bff740 61bde637 00000006 00000002 00000000 00000000 ucrtbase!perror+0x0 
a3bff830 6361259d 00000000 00000000 00000000 00000000 KERNELBASE!CtrlRoutine+0x0 
a3bff860 645eaf38 00000000 00000000 00000000 00000000 KERNEL32!BaseThreadInitThunk+0x0 
a3bff8e0 00000000 00000000 00000000 00000000 00000000 ntdll!RtlUserThreadStart+0x0 

*** Dump of thread ID 14208 (state: Waiting): ***

- Information -
Status: Wait Reason: Suspended, , Kernel Time: 92031248.000000, User Time: 15189531648.000000, Wait Time: 2345936.000000

- Registers -
rax=0000000000000000 rbx=0000000000000039 rcx=0000000000000003 rdx=0000000002cba560 rsi=00000000b20c1be0 rdi=000000000000a710
r8=0000000000000002 r9=00000000a3737e58 r10=0000000000000013 r11=00000000b5233360 r12=00000000b2f278d0 r13=000000000000012a
r14=0000000000000003 r15=00000000b1641de0 rip=0000000001fd9d67 rsp=00000000a37380d0 rbp=00000000a3738150
cs=0033  ss=002b  ds=0000  es=0000  fs=0000  gs=0000             efl=00000206

- Callstack -
ChildEBP RetAddr  Args to Child
a3738620 00f713db b247a8c0 a9ba0000 a3738720 00000000 rosetta_beta_6.06_windows_x86_6!xmlUTF8Strsub+0x0 
a3738920 fe46ed95 a3738960 fe708bec b03dd920 02c4fc50 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb14version_numberEv+0x0 
a37389a0 01381001 00000000 00000000 00000000 00000000 rosetta_beta_6.06_windows_x86_6!+0x0 
a3738b90 ff634725 a3730000 b2dd2970 b13dc090 02dac8a0 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb4pool5clearEv+0x0 
a3738c60 ff6345ea b2dd2970 b13dc090 0000002d a3738e30 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb14version_numberEv+0x0 
a3738cf0 01194507 00000000 00000000 00000000 00000000 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb14version_numberEv+0x0 
a3738d60 ff62fde2 b1632c28 00000000 02abcd40 b2ca9a60 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb4pool5clearEv+0x0 
a3738ed0 012ad60a 66666666 a3738fa8 030f8190 af83ea70 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb14version_numberEv+0x0 
a3738f80 012ad9fa a3739000 a3739000 afeabd70 b2dcc6f0 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb4pool5clearEv+0x0 
a3739080 ff460a4d a373a948 00000000 00000010 02b9fb38 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb4pool5clearEv+0x0 
a37391b0 fea4da23 a3739231 00000000 00000001 fe2ea275 rosetta_beta_6.06_windows_x86_6!_ZN5cppdb14version_numberEv+0x0 
a3739270 fea4ca50 b1638037 00000010 02b9fb38 00001002 rosetta_beta_6.06_windows_x86_6!+0x0 
a3739500 fe5aa078 a3739560 afe90628 afa55ce0 affed880 rosetta_beta_6.06_windows_x86_6!+0x0 
a37395e0 fe5aca1a 43300000 645cc360 b2f35af0 afdcdf60 rosetta_beta_6.06_windows_x86_6!+0x0 
a373aa40 fe05bd98 00000002 00000000 a373aad0 a373aad0 rosetta_beta_6.06_windows_x86_6!+0x0 
a373ab50 fe049e71 b0164b1f 00000000 b040ff50 00000015 rosetta_beta_6.06_windows_x86_6!+0x0 
a373b270 fe024ec0 00000015 00000000 00000000 00000000 rosetta_beta_6.06_windows_x86_6!+0x0 
a374fb90 fe021315 00000015 03ed9110 03ed9108 00000000 rosetta_beta_6.06_windows_x86_6!+0x0 
a374fbe0 fe021366 00000000 00000000 00000000 00000000 rosetta_beta_6.06_windows_x86_6!+0x0 
a374fc10 6361259d 00000000 00000000 00000000 00000000 rosetta_beta_6.06_windows_x86_6!+0x0 
a374fc40 645eaf38 00000000 00000000 00000000 00000000 KERNEL32!BaseThreadInitThunk+0x0 
a374fcc0 00000000 00000000 00000000 00000000 00000000 ntdll!RtlUserThreadStart+0x0 

*** Dump of thread ID 19032 (state: Waiting): ***

- Information -
Status: Wait Reason: ExecutionDelay, , Kernel Time: 3125000.000000, User Time: 3437500.000000, Wait Time: 2346147.000000

- Registers -
rax=0000000000000034 rbx=00000000a3efe690 rcx=0000000000000000 rdx=00000000a3efe690 rsi=00000000a3944000 rdi=0000000000000000
r8=00000000a3efe5c8 r9=00000000a3efe6c1 r10=0000000000000000 r11=0000000000000246 r12=0000000063618670 r13=00000000a3efe6f8
r14=00000000a3efe72a r15=00000000a3efe720 rip=0000000064630a24 rsp=00000000a3efe5c8 rbp=00000000a3efe6c1
cs=0033  ss=002b  ds=0000  es=0000  fs=0000  gs=0000             efl=00000246

- Callstack -
ChildEBP RetAddr  Args to Child
a3efe5c0 645e5693 05a995c0 61ab9cee 5873f180 fe2c000d ntdll!ZwDelayExecution+0x0 
a3efe5f0 61aca3cd 00000000 00000000 a3efe690 febd29ff ntdll!RtlDelayExecution+0x0 
a3efe670 fe2bc0f8 a3efee20 00000000 fff0bdc0 a3efee4c KERNELBASE!SleepEx+0x0 
a3effea0 6361259d 00000000 00000000 00000000 00000000 rosetta_beta_6.06_windows_x86_6!+0x0 
a3effed0 645eaf38 00000000 00000000 00000000 00000000 KERNEL32!BaseThreadInitThunk+0x0 
a3efff50 00000000 00000000 00000000 00000000 00000000 ntdll!RtlUserThreadStart+0x0 

*** Dump of thread ID 18652 (state: Waiting): ***

- Information -
Status: Wait Reason: EventPairLow, , Kernel Time: 0.000000, User Time: 0.000000, Wait Time: 2345950.000000

- Registers -
rax=00000000000001e3 rbx=00000000a9ba0c50 rcx=0000000000000018 rdx=00000000af99f410 rsi=0000000000000001 rdi=00000000af99f790
r8=00000000644d6ac0 r9=0000000000000000 r10=00000000644cffa0 r11=00000000644cffa0 r12=0000000000000000 r13=0000000000000000
r14=000000000000ffff r15=0000000000000002 rip=0000000064633ff4 rsp=00000000a3affbf8 rbp=0000000000000000
cs=0033  ss=002b  ds=0000  es=0000  fs=0000  gs=0000             efl=00000246

- Callstack -
ChildEBP RetAddr  Args to Child
a3affbf0 645c586e a9ba0c50 a9ba0c50 00000001 a9ba0c50 ntdll!ZwWaitForWorkViaWorkerFactory+0x0 
a3affed0 6361259d 00000000 00000000 00000000 00000000 ntdll!RtlClearThreadWorkOnBehalfTicket+0x0 
a3afff00 645eaf38 00000000 00000000 00000000 00000000 KERNEL32!BaseThreadInitThunk+0x0 
a3afff80 00000000 00000000 00000000 00000000 00000000 ntdll!RtlUserThreadStart+0x0 


*** Debug Message Dump ****


*** Foreground Window Data ***
    Window Name      : 
    Window Class     : 
    Window Process ID: 0
    Window Thread ID : 0

Exiting...

</stderr_txt>
]]>




©2024 University of Washington
https://www.bakerlab.org