When I close my game, it may freeze. I can't get out from the game, until I press "Control + Alt + Delete" key combination. The level may also be corrupted after freeze. For example buttons or command's doesn't work anymore or the player starts on the void.

I have Window's 8.1 and newest java version.

Here is Launcher log:
[14:14:35 INFO]: Minecraft Launcher 1.6.11 (through bootstrap 100) started on windows...
[14:14:35 INFO]: Current time is Mar 21, 2015 2:14:35 PM
[14:14:35 INFO]: System.getProperty('os.name') == 'Windows 8.1'
[14:14:35 INFO]: System.getProperty('os.version') == '6.3'
[14:14:35 INFO]: System.getProperty('os.arch') == 'amd64'
[14:14:35 INFO]: System.getProperty('java.version') == '1.8.0_25'
[14:14:35 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[14:14:35 INFO]: System.getProperty('sun.arch.data.model') == '64'
[14:14:35 INFO]: proxy == DIRECT
[14:14:35 INFO]: JFX is already initialized
[14:14:36 INFO]: Refreshing local version list...
[14:14:36 INFO]: Refreshing remote version list...
[14:14:37 INFO]: Refresh complete.
[14:14:37 INFO]: Loaded 1 profile(s); selected 'JonttuT'
[14:14:37 INFO]: Refreshing auth...
[14:14:37 INFO]: Logging in with access token
[14:14:55 INFO]: Getting syncinfo for selected version
[14:14:55 INFO]: Queueing library & version downloads
[14:14:57 INFO]: Download job 'Version & Libraries' started (16 threads, 34 files)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.4-nightly-20150209\lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries'... (try 0)
[14:14:57 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Download job 'Resources' skipped as there are no files to download
[14:14:58 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.4-nightly-20150209\lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.12\realms-1.7.12.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.12\realms-1.7.12.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.17\authlib-1.5.17.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\6.5\twitch-platform-6.5-natives-windows-64.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Attempting to download C:\Users\Joonas\AppData\Roaming\.minecraft\versions\1.8.3\1.8.3.jar for job 'Version & Libraries'... (try 0)
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:58 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.17\authlib-1.5.17.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\6.5\twitch-platform-6.5-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[14:14:59 INFO]: Finished downloading C:\Users\Joonas\AppData\Roaming\.minecraft\versions\1.8.3\1.8.3.jar for job 'Version & Libraries': Used own copy as it matched etag
[14:14:59 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:01.607)
[14:14:59 INFO]: Launching game
[14:14:59 INFO]: Unpacking natives to C:\Users\Joonas\AppData\Roaming\.minecraft\versions\1.8.3\1.8.3-natives-20882234956295
[14:14:59 INFO]: Launching in C:\Users\Joonas\AppData\Roaming\.minecraft
[14:14:59 INFO]: Half command: C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=C:\Users\Joonas\AppData\Roaming\.minecraft\versions\1.8.3\1.8.3-natives-20882234956295 -cp C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.17\authlib-1.5.17.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.12\realms-1.7.12.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\6.5\twitch-6.5.jar;C:\Users\Joonas\AppData\Roaming\.minecraft\versions\1.8.3\1.8.3.jar net.minecraft.client.main.Main
[14:14:59 INFO]: Looking for orphaned versions to clean up...
[14:15:03 INFO]: Looking for old natives & assets to clean up...
[14:19:24 ERROR]: Game ended with bad state (exit code -805306369)
[14:19:24 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[14:19:24 INFO]: Deleting C:\Users\Joonas\AppData\Roaming\.minecraft\versions\1.8.3\1.8.3-natives-20882234956295
[14:19:24 WARN]: Couldn't delete C:\Users\Joonas\AppData\Roaming\.minecraft\versions\1.8.3\1.8.3-natives-20882234956295 - scheduling for deletion upon exit

And here is Game Output:
[14:15:01] [Client thread/INFO]: Setting user: JonttuT
[14:15:01] [Client thread/INFO]: (Session ID is token:49f1ce869bc948ccab74702f3a82631f:ee712f99e6904f9482d65e87fc1f1c45)
[14:15:03] [Client thread/INFO]: LWJGL Version: 2.9.4
[14:15:03] [Client thread/INFO]: Reloading ResourceManager: Default
[14:15:04] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:15:04] [Thread-6/INFO]: Initializing LWJGL OpenAL
[14:15:04] [Thread-6/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[14:15:04] [Thread-6/INFO]: OpenAL initialized.
[14:15:05] [Sound Library Loader/INFO]: Sound engine started
[14:15:06] [Client thread/INFO]: Created: 512x512 textures-atlas
[14:15:09] [Server thread/INFO]: Starting integrated minecraft server version 1.8.3
[14:15:09] [Server thread/INFO]: Generating keypair
[14:15:09] [Server thread/INFO]: Preparing start region for level 0
[14:15:10] [Server thread/INFO]: Preparing spawn area: 43%
[14:15:11] [Server thread/INFO]: Changing view distance to 8, from 10
[14:15:11] [Server thread/INFO]: JonttuT[local:E:40086395] logged in with entity id 76 at (-945.9228680353133, 58.0, 1227.9615690231763)
[14:15:11] [Server thread/INFO]: JonttuT joined the game
[14:15:13] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2016ms behind, skipping 40 tick(s)
[14:15:24] [Server thread/INFO]: Saving and pausing game...
[14:15:24] [Server thread/INFO]: Saving chunks for level 'Test'/Overworld
[14:15:25] [Server thread/INFO]: Saving chunks for level 'Test'/Nether
[14:15:25] [Server thread/INFO]: Saving chunks for level 'Test'/The End
[14:15:26] [Client thread/INFO]: Using default channel type
[14:15:26] [Client thread/INFO]: Started on 57519
[14:15:26] [Client thread/INFO]: [CHAT] Local game hosted on port 57519
[14:15:29] [Server thread/INFO]: JonttuT was slain by Spider
[14:15:29] [Client thread/INFO]: [CHAT] JonttuT was slain by Spider
[14:15:30] [pool-2-thread-1/ERROR]: Signature is missing from textures payload
[14:15:54] [Server thread/INFO]: JonttuT lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[14:15:54] [Server thread/INFO]: JonttuT left the game
[14:15:54] [Server thread/INFO]: Stopping singleplayer server as player logged out
[14:15:54] [Server thread/INFO]: Stopping server
[14:15:54] [Server thread/INFO]: Saving players
[14:15:54] [Server thread/INFO]: Saving worlds
[14:15:54] [Server thread/INFO]: Saving chunks for level 'Test'/Overworld
[14:15:54] [Server thread/INFO]: Saving chunks for level 'Test'/Nether
[14:15:54] [Server thread/INFO]: Saving chunks for level 'Test'/The End

And then game freezes and sometimes says Java(TM) Platform SE binary is not responding