Stderr output

<core_client_version>8.2.8</core_client_version>
<![CDATA[
<message>
Unspecified error
 (0x80004005) - exit code 2147500037 (0x80004005)</message>
<stderr_txt>
2026-02-05 08:23:15 (69172): vboxwrapper version 26210
2026-02-05 08:23:15 (69172): BOINC client version: 8.2.8
2026-02-05 08:23:16 (69172): Detected: VirtualBox VboxManage Interface (Version: 7.2.4)
2026-02-05 08:23:17 (69172): Detected: Heartbeat check (file: 'heartbeat' every 1800.000000 seconds)
2026-02-05 08:23:17 (69172): Successfully copied 'init_data.xml' to the shared directory.
2026-02-05 08:23:17 (69172): Successfully copied 'input' to the shared directory.
2026-02-05 08:23:17 (69172): Create VM. (boinc_df42aa3eff8080e8, slot#1)
2026-02-05 08:23:17 (69172): Setting Memory Size for VM. (1024MB)
2026-02-05 08:23:18 (69172): Setting CPU Count for VM. (1)
2026-02-05 08:23:18 (69172): Setting Chipset Options for VM.
2026-02-05 08:23:18 (69172): Setting Graphics Controller Options for VM. (Driver: VBoxVGA, 16MB)
2026-02-05 08:23:19 (69172): Setting Boot Options for VM.
2026-02-05 08:23:19 (69172): Setting Network Configuration for NAT. (Driver: virtio)
2026-02-05 08:23:19 (69172): Enabling VM Network Access.
2026-02-05 08:23:20 (69172): Disabling USB Support for VM.
2026-02-05 08:23:20 (69172): Disabling COM Port Support for VM.
2026-02-05 08:23:20 (69172): Disabling LPT Port Support for VM.
2026-02-05 08:23:20 (69172): Disabling Audio Support for VM.
2026-02-05 08:23:21 (69172): Disabling Clipboard Support for VM.
2026-02-05 08:23:21 (69172): Disabling Drag and Drop Support for VM.
2026-02-05 08:23:21 (69172): Adding storage controller(s) to VM.
2026-02-05 08:23:21 (69172): Adding virtual disk drive to VM. (Theory_2025_08_13_prod.vdi)
2026-02-05 08:23:27 (69172): Attempts: 3
2026-02-05 08:23:27 (69172): Adding VirtualBox Guest Additions to VM.
2026-02-05 08:23:27 (69172): Adding network bandwidth throttle group to VM. (Defaulting to 1024GB)
2026-02-05 08:23:28 (69172): forwarding host port 54211 to guest port 80
2026-02-05 08:23:28 (69172): Enabling remote desktop for VM.
2026-02-05 08:23:28 (69172): Required extension pack not installed, remote desktop not enabled.
2026-02-05 08:23:28 (69172): Enabling shared directory for VM.
2026-02-05 08:23:29 (69172): Starting VM using VBoxManage interface. (boinc_df42aa3eff8080e8, slot#1)
2026-02-05 08:23:32 (69172): Error in start VM for VM: -2147467259
Command:
VBoxManage -q startvm "boinc_df42aa3eff8080e8" --type headless
Output:
VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: AMD-V is disabled in the BIOS (or by the host OS) (VERR_SVM_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole
Waiting for VM "boinc_df42aa3eff8080e8" to power on...

2026-02-05 08:23:32 (69172): VM failed to start.
2026-02-05 08:23:32 (69172): Could not start 
2026-02-05 08:23:32 (69172): ERROR: VM failed to start
2026-02-05 08:23:32 (69172): Powering off VM.
2026-02-05 08:23:32 (69172): Deregistering VM. (boinc_df42aa3eff8080e8, slot#1)
2026-02-05 08:23:33 (69172): Removing network bandwidth throttle group from VM.
2026-02-05 08:23:33 (69172): Removing VM from VirtualBox.

    Hypervisor System Log:

00:00:14.720229          Saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:14.720341          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:14.720421          ERROR [COM]: aRC=VBOX_E_OBJECT_NOT_FOUND (0x80bb0001) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={No storage device attached to device slot 0 on port 2 of controller 'Hard Disk Controller'}, preserve=false aResultDetail=0
00:00:14.724988          Finished saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml"
00:00:14.725234          Saving settings file "C:\ProgramData\BOINC\slots\8\boinc_178e193f9171b174\boinc_178e193f9171b174.vbox" with version "1.19-windows"
00:00:14.726667          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={83cfdc66-4f20-4569-ad39-8722f7d472b3} aComponent={RecordingSettingsWrap} aText={Recording not started}, preserve=false aResultDetail=0
00:00:14.727671          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:14.728139          Finished saving settings file "C:\ProgramData\BOINC\slots\8\boinc_178e193f9171b174\boinc_178e193f9171b174.vbox"
00:00:14.729302 DeleteVM Saving settings file "C:\ProgramData\BOINC\slots\8\boinc_178e193f9171b174\boinc_178e193f9171b174.vbox" with version "1.19-windows"
00:00:14.732633 DeleteVM Finished saving settings file "C:\ProgramData\BOINC\slots\8\boinc_178e193f9171b174\boinc_178e193f9171b174.vbox"
00:00:14.985050          Launched VM: 2148757120 pid: 42784 (0xa720) frontend: headless name: boinc_d2e3fbc86e78f031
00:00:15.124688          Platform architecture set to 'x86'
00:00:15.771610          Saving settings file "C:\ProgramData\BOINC\slots\11\boinc_c61859a740c13d56\boinc_c61859a740c13d56.vbox" with version "1.19-windows"
00:00:15.776225          Finished saving settings file "C:\ProgramData\BOINC\slots\11\boinc_c61859a740c13d56\boinc_c61859a740c13d56.vbox"
00:00:15.829583          Platform architecture set to 'x86'
00:00:15.830498          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:15.876478          Platform architecture set to 'x86'
00:00:15.877747          Saving settings file "C:\ProgramData\BOINC\slots\11\boinc_c61859a740c13d56\boinc_c61859a740c13d56.vbox" with version "1.19-windows"
00:00:15.881552          Finished saving settings file "C:\ProgramData\BOINC\slots\11\boinc_c61859a740c13d56\boinc_c61859a740c13d56.vbox"
00:00:16.131626          Saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:16.136739          Finished saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml"
00:00:16.138077 DeleteVM Saving settings file "C:\ProgramData\BOINC\slots\8\boinc_178e193f9171b174\boinc_178e193f9171b174.vbox" with version "1.19-windows"
00:00:16.141281 DeleteVM Finished saving settings file "C:\ProgramData\BOINC\slots\8\boinc_178e193f9171b174\boinc_178e193f9171b174.vbox"
00:00:16.153829          Platform architecture set to 'x86'
00:00:16.571343          Saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:16.576240          Finished saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml"
00:00:16.576487          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_df42aa3eff8080e8\boinc_df42aa3eff8080e8.vbox" with version "1.19-windows"
00:00:16.579536          Finished saving settings file "C:\ProgramData\BOINC\slots\1\boinc_df42aa3eff8080e8\boinc_df42aa3eff8080e8.vbox"
00:00:16.581030 DeleteVM Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_df42aa3eff8080e8\boinc_df42aa3eff8080e8.vbox" with version "1.19-windows"
00:00:16.584257 DeleteVM Finished saving settings file "C:\ProgramData\BOINC\slots\1\boinc_df42aa3eff8080e8\boinc_df42aa3eff8080e8.vbox"
00:00:16.838974          Saving settings file "C:\ProgramData\BOINC\slots\1\boinc_df42aa3eff8080e8\boinc_df42aa3eff8080e8.vbox" with version "1.19-windows"
00:00:16.843174          Finished saving settings file "C:\ProgramData\BOINC\slots\1\boinc_df42aa3eff8080e8\boinc_df42aa3eff8080e8.vbox"
00:00:16.891803          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:17.190020          ERROR [COM]: aRC=VBOX_E_INVALID_OBJECT_STATE (0x80bb0007) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={MachineWrap} aText={Cannot unregister the machine 'boinc_df42aa3eff8080e8' while it is locked}, preserve=false aResultDetail=0
00:00:17.911534          Platform architecture set to 'x86'
00:00:18.444455          Saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:18.449277          Finished saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml"
00:00:18.449536          Saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox" with version "1.19-windows"
00:00:18.452793          Finished saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox"
00:00:18.454116 DeleteVM Saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox" with version "1.19-windows"
00:00:18.457427 DeleteVM Finished saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox"
00:00:18.546505          Saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox" with version "1.19-windows"
00:00:18.549585          Finished saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox"
00:00:18.609624          Platform architecture set to 'x86'
00:00:18.611060          ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={e36a5081-a82a-40bd-9e4e-42a44d6ce50f} aComponent={SessionMachine} aText={This machine does not have any snapshots}, preserve=false aResultDetail=0
00:00:18.671517          Platform architecture set to 'x86'
00:00:18.672923          Saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox" with version "1.19-windows"
00:00:18.676188          Finished saving settings file "C:\ProgramData\BOINC\slots\12\boinc_d2e3fbc86e78f031\boinc_d2e3fbc86e78f031.vbox"
00:00:18.920200          Saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:18.924724          Finished saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml"
00:00:18.924868          Saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:18.928174          Finished saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml"
00:00:18.929268 DeleteVM Saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml" with version "1.12-windows"
00:00:18.933086 DeleteVM Finished saving settings file "C:\Users\shaha\.VirtualBox\VirtualBox.xml"
00:00:23.948718 main     VirtualBox: object deletion starts
00:00:23.949663 main     HostDnsMonitor: shutting down ...
00:00:23.949715 main     HostDnsMonitor: shut down
00:00:23.951474 Watcher  ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={2ce10519-3c09-45d8-a12d-e887786146b7} aComponent={VirtualBoxWrap} aText={The object is not ready}, preserve=false aResultDetail=0
00:00:23.951701 main     VirtualBox: object deleted

    VM Execution Log:


    VM Startup Log:


    VM Trace Log:

off 
Exit Code: 0
Output:

2026-02-05 08:23:19 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --vram 16 --graphicscontroller VBoxVGA 
Exit Code: 0
Output:

2026-02-05 08:23:19 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --boot1 disk --boot2 dvd --boot3 none --boot4 none 
Exit Code: 0
Output:

2026-02-05 08:23:19 (69172): 
Command: VBoxManage -q showvminfo "boinc_df42aa3eff8080e8" --machinereadable 
Exit Code: 0
Output:
name="boinc_df42aa3eff8080e8"
encryption="disabled"
groups="/"
platformArchitecture="x86"
ostype="Linux 2.6 / 3.x / 4.x / 5.x (64-bit)"
UUID="1dcb8b81-f936-4042-94ef-7eb128eccd4d"
CfgFile="C:\\ProgramData\\BOINC\\slots\\1\\boinc_df42aa3eff8080e8\\boinc_df42aa3eff8080e8.vbox"
SnapFldr="C:\\ProgramData\\BOINC\\slots\\1\\boinc_df42aa3eff8080e8\\Snapshots"
LogFldr="C:\\ProgramData\\BOINC\\slots\\1\\boinc_df42aa3eff8080e8\\Logs"
hardwareuuid="1dcb8b81-f936-4042-94ef-7eb128eccd4d"
memory=1024
pagefusion="off"
vram=16
cpuexecutioncap=100
cpu-profile="host"
chipset="piix3"
firmware="BIOS"
cpus=1
hpet="off"
pae="off"
longmode="on"
triplefaultreset="off"
apic="on"
x2apic="on"
nested-hw-virt="off"
hwvirtex="on"
nestedpaging="on"
largepages="on"
vtxvpid="on"
vtxux="on"
virtvmsavevmload="on"
cpuid-portability-level=0
bootmenu="messageandmenu"
boot1="disk"
boot2="dvd"
boot3="none"
boot4="none"
acpi="on"
ioapic="on"
biosapic="apic"
biossystemtimeoffset=0
NvramFile="C:\\ProgramData\\BOINC\\slots\\1\\boinc_df42aa3eff8080e8\\boinc_df42aa3eff8080e8.nvram"
rtcuseutc="off"
iommu="none"
paravirtprovider="default"
effparavirtprovider="kvm"
VMState="poweroff"
VMStateChangeTime="2026-02-05T15:23:17.464000000"
graphicscontroller="vboxvga"
monitorcount=1
accelerate3d="off"
teleporterenabled="off"
teleporterport=0
teleporteraddress=""
teleporterpassword=""
tracing-enabled="off"
tracing-allow-vm-access="off"
tracing-config=""
autostart-enabled="off"
autostart-delay=0
defaultfrontend=""
vmprocpriority="default"
natnet1="nat"
macaddress1="080027BA5CDE"
cableconnected1="on"
nic1="nat"
nictype1="82540EM"
nicspeed1="0"
mtu="0"
sockSnd="64"
sockRcv="64"
tcpWndSnd="64"
tcpWndRcv="64"
localhostReachable="0"
forwardBroadcast="0"
enableTFTP="0"
nic2="none"
nic3="none"
nic4="none"
nic5="none"
nic6="none"
nic7="none"
nic8="none"
hidpointing="ps2mouse"
hidkeyboard="ps2kbd"
uart1="off"
uart2="off"
uart3="off"
uart4="off"
lpt1="off"
lpt2="off"
audio="default"
audio_out="off"
audio_in="off"
clipboard="disabled"
clipboard_file_transfers="off"
draganddrop="disabled"
vrde="off"
usb="off"
ehci="off"
xhci="off"
recording_started="off"
recording_enabled="off"
recording_screens=1
 rec_screen0
rec_screen_enabled="on"
rec_screen_id=0
rec_screen_video_enabled="on"
rec_screen_audio_enabled="off"
rec_screen_dest="File"
rec_screen_dest_filename="C:\\ProgramData\\BOINC\\slots\\1\\boinc_df42aa3eff8080e8\\boinc_df42aa3eff8080e8-screen0.webm"
rec_screen_opts="ac_profile=med"
rec_screen_video_res_xy="1024x768"
rec_screen_video_rate_kbps=512
rec_screen_video_fps=25
description="Theory_2922-4834048-489_1"
GuestMemoryBalloon=0

2026-02-05 08:23:19 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --nic1 nat --nic-type1 "virtio" --cable-connected1 off --nat-dns-proxy1 on 
Exit Code: 0
Output:

2026-02-05 08:23:20 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --cable-connected1 on 
Exit Code: 0
Output:

2026-02-05 08:23:20 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --usb off 
Exit Code: 0
Output:

2026-02-05 08:23:20 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --uart1 off --uart2 off 
Exit Code: 0
Output:

2026-02-05 08:23:20 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --lpt1 off --lpt2 off 
Exit Code: 0
Output:

2026-02-05 08:23:21 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --audio-enabled off 
Exit Code: 0
Output:

2026-02-05 08:23:21 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --clipboard disabled 
Exit Code: 0
Output:

2026-02-05 08:23:21 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --draganddrop disabled 
Exit Code: 0
Output:

2026-02-05 08:23:21 (69172): 
Command: VBoxManage -q storagectl "boinc_df42aa3eff8080e8" --name "Hard Disk Controller" --add "sata" --controller "IntelAHCI" --hostiocache off --portcount 3
Exit Code: 0
Output:

2026-02-05 08:23:27 (69172): 
Command: VBoxManage -q showhdinfo "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/Theory_2025_08_13_prod.vdi" 
Exit Code: 0
Output:
UUID:           045b03b5-74fd-4f58-8f68-0eee86fe796d
Parent UUID:    base
State:          created
Type:           multiattach
Location:       C:\ProgramData\BOINC\projects\lhcathome.cern.ch_lhcathome\Theory_2025_08_13_prod.vdi
Storage format: VDI
Format variant: dynamic default
Capacity:       10240 MBytes
Size on disk:   2847 MBytes
Encryption:     disabled
Property:       AllocationBlockSize=1048576
Child UUIDs:    b1600d30-5feb-45f9-9ed8-56c3ba514332
                aeb9b13e-198f-439c-8ae8-64851bcfb66d
                a3922691-1d32-4460-ac5c-8609bb7f9fc2

2026-02-05 08:23:27 (69172): 
Command: VBoxManage -q storageattach "boinc_df42aa3eff8080e8" --storagectl "Hard Disk Controller" --port 0 --device 0 --type hdd --mtype multiattach --medium "C:\ProgramData\BOINC/projects/lhcathome.cern.ch_lhcathome/Theory_2025_08_13_prod.vdi" 
Exit Code: 0
Output:

2026-02-05 08:23:27 (69172): 
Command: VBoxManage -q storageattach "boinc_df42aa3eff8080e8" --storagectl "Hard Disk Controller" --port 1 --device 0 --type dvddrive --medium "C:\Program Files\Oracle\VirtualBox/VBoxGuestAdditions.iso" 
Exit Code: 0
Output:

2026-02-05 08:23:28 (69172): 
Command: VBoxManage -q bandwidthctl "boinc_df42aa3eff8080e8" add "boinc_df42aa3eff8080e8_net" --type network --limit 1024G 
Exit Code: 0
Output:

2026-02-05 08:23:28 (69172): 
Command: VBoxManage -q modifyvm "boinc_df42aa3eff8080e8" --natpf1 ",tcp,127.0.0.1,54211,,80" 
Exit Code: 0
Output:

2026-02-05 08:23:28 (69172): 
Command: VBoxManage -q list extpacks
Exit Code: 0
Output:
Extension Packs: 0

2026-02-05 08:23:29 (69172): 
Command: VBoxManage -q sharedfolder add "boinc_df42aa3eff8080e8" --name "shared" --hostpath "C:\ProgramData\BOINC\slots\1/shared"
Exit Code: 0
Output:

2026-02-05 08:23:32 (69172): 
Command: VBoxManage -q startvm "boinc_df42aa3eff8080e8" --type headless
Exit Code: -2147467259
Output:
VBoxManage.exe: error: Not in a hypervisor partition (HVP=0) (VERR_NEM_NOT_AVAILABLE).
VBoxManage.exe: error: AMD-V is disabled in the BIOS (or by the host OS) (VERR_SVM_DISABLED)
VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component ConsoleWrap, interface IConsole
Waiting for VM "boinc_df42aa3eff8080e8" to power on...

2026-02-05 08:23:33 (69172): 
Command: VBoxManage -q snapshot "boinc_df42aa3eff8080e8" list 
Exit Code: -108
Output:
This machine does not have any snapshots

2026-02-05 08:23:33 (69172): 
Command: VBoxManage -q bandwidthctl "boinc_df42aa3eff8080e8" remove "boinc_df42aa3eff8080e8_net" 
Exit Code: 0
Output:
VBoxManage.exe: error: Bandwidth groups cannot be deleted while the VM is running

2026-02-05 08:23:33 (69172): 
Command: VBoxManage -q unregistervm "boinc_df42aa3eff8080e8" --delete 
Exit Code: -2135228409
Output:
VBoxManage.exe: error: Cannot unregister the machine 'boinc_df42aa3eff8080e8' while it is locked
VBoxManage.exe: error: Details: code VBOX_E_INVALID_OBJECT_STATE (0x80bb0007), component MachineWrap, interface IMachine, callee IUnknown
VBoxManage.exe: error: Context: "Unregister(fDeleteAll ? CleanupMode_DetachAllReturnHardDisksAndVMRemovable :CleanupMode_DetachAllReturnHardDisksOnly, ComSafeArrayAsOutParam(aMedia))" at line 235 of file VBoxManageMisc.cpp

2026-02-05 08:23:34 (69172): 
Command: VBoxManage -q unregistervm "boinc_df42aa3eff8080e8" --delete 
Exit Code: 0
Output:
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%

2026-02-05 08:23:40 (69172): called boinc_finish(-2147467259)

</stderr_txt>
]]>

©2026 CERN