Freeze

Hi , I have postponed this problem hoping that it does not happen has me , after a while the game when I ask or destroyed block the freeze game hugely . I put a forced crach , memory RAM use ( task manager ) and some veiled screen .

---- Minecraft Crash Report ----
// Sorry :(

Time: 21/04/16 19:09
Description: Manually triggered debug crash

java.lang.Throwable
	at bcc.az(SourceFile:1695)
	at bcc.t(SourceFile:1616)
	at bcc.av(SourceFile:963)
	at bcc.a(SourceFile:393)
	at net.minecraft.client.main.Main.main(SourceFile:124)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at bcc.az(SourceFile:1695)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bmq['Mick991_1'/20020, l='MpServer', x=-303,16, y=48,00, z=145,42]]
	Chunk stats: MultiplayerChunkCache: 121, 121
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-228,64,92), Chunk: (at 12,4,12 in -15,5; contains blocks -240,0,80 to -225,255,95), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 543639717 game time, 502513563 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 7 total; [bmq['Mick991_1'/20020, l='MpServer', x=-303,16, y=48,00, z=145,42], vu['Bat'/18442, l='MpServer', x=-284,15, y=36,20, z=144,10], vy['Cow'/266, l='MpServer', x=-261,36, y=74,00, z=87,23], wc['Pig'/279, l='MpServer', x=-252,16, y=74,00, z=88,10], yo['Guardian'/22983, l='MpServer', x=-320,50, y=60,00, z=192,50], aag['Boat'/3661, l='MpServer', x=-281,15, y=62,52, z=181,69], vu['Bat'/22875, l='MpServer', x=-239,91, y=23,03, z=192,01]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bkr.a(SourceFile:365)
	at bcc.b(SourceFile:2516)
	at bcc.a(SourceFile:402)
	at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
	Minecraft Version: 1.9.3-pre1
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 148728520 bytes (141 MB) / 328728576 bytes (313 MB) up to 3207856128 bytes (3059 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 1.9.3-pre1
	LWJGL: 2.9.4
	OpenGL: AMD Radeon R7 200 Series GL version 4.5.13431 Compatibility Profile Context 16.150.2211.0, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: Yes
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: English (UK)
	Profiler Position: N/A (disabled)
	CPU: bcc$7@5b04224a