Minecraft forge crashes while launching

[Elek]

So I'm trying to play pixelmon and when launching it crashes and says this error "The game crashed whilst initializing game
The game crashed whilst initializing game
Error: java.lang.OutOfMemoryError: Java heap space".  I've also changed JVM Arguments to -Xmx5G, I have 16gb of ram. It's not because of any random mods I've or resource packs since I've tried to launch pixelmon with and without them. Any help?
Here's the crash report (Also the versions I'm using is 1.10.2-forge1.10.2-12.18.3.2185, Pixelmon-1.10.2-5.1.1-universal and OptiFine_1.10.2_HD_U_E3)

---- Minecraft Crash Report ----

WARNING: coremods are present:
Contact their authors BEFORE contacting forge

// Why did you do that?

Time: 30/06/17 15:17
Description: Initializing game

java.lang.OutOfMemoryError: Java heap space
    at net.minecraftforge.client.model.pipeline.UnpackedBakedQuad$Builder.<init>(UnpackedBakedQuad.java:112)
    at net.minecraftforge.client.model.ItemLayerModel.buildQuad(ItemLayerModel.java:369)
    at net.minecraftforge.client.model.ItemLayerModel.buildSideQuad(ItemLayerModel.java:353)
    at net.minecraftforge.client.model.ItemLayerModel.addSideQuad(ItemLayerModel.java:278)
    at net.minecraftforge.client.model.ItemLayerModel.getQuadsForSprite(ItemLayerModel.java:244)
    at net.minecraftforge.client.model.ItemLayerModel.bake(ItemLayerModel.java:126)
    at net.minecraftforge.client.model.ModelLoader$VanillaModelWrapper.bake(ModelLoader.java:538)
    at net.minecraftforge.client.model.ModelLoader.func_177570_a(ModelLoader.java:182)
    at net.minecraft.client.renderer.block.model.ModelManager.func_110549_a(ModelManager.java:28)
    at net.minecraft.client.resources.SimpleReloadableResourceManager.func_110542_a(SimpleReloadableResourceManager.java:122)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:499)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351)
    at net.minecraft.client.main.Main.main(SourceFile:124)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head --
Thread: Client thread
Stacktrace:
    at net.minecraftforge.client.model.pipeline.UnpackedBakedQuad$Builder.<init>(UnpackedBakedQuad.java:112)
    at net.minecraftforge.client.model.ItemLayerModel.buildQuad(ItemLayerModel.java:369)
    at net.minecraftforge.client.model.ItemLayerModel.buildSideQuad(ItemLayerModel.java:353)
    at net.minecraftforge.client.model.ItemLayerModel.addSideQuad(ItemLayerModel.java:278)
    at net.minecraftforge.client.model.ItemLayerModel.getQuadsForSprite(ItemLayerModel.java:244)
    at net.minecraftforge.client.model.ItemLayerModel.bake(ItemLayerModel.java:126)
    at net.minecraftforge.client.model.ModelLoader$VanillaModelWrapper.bake(ModelLoader.java:538)
    at net.minecraftforge.client.model.ModelLoader.func_177570_a(ModelLoader.java:182)
    at net.minecraft.client.renderer.block.model.ModelManager.func_110549_a(ModelManager.java:28)
    at net.minecraft.client.resources.SimpleReloadableResourceManager.func_110542_a(SimpleReloadableResourceManager.java:122)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:499)

-- Initialization --
Details:
Stacktrace:
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351)
    at net.minecraft.client.main.Main.main(SourceFile:124)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
    Minecraft Version: 1.10.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_131, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 19916928 bytes (18 MB) / 523501568 bytes (499 MB) up to 523501568 bytes (499 MB)
    JVM Flags: 7 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx5G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Xmx512M
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.32 Powered by Forge 12.18.3.2185 Optifine OptiFine_1.10.2_HD_U_E3 4 mods loaded, 4 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCH    mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
    UCH    FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.3.2185.jar) 
    UCH    Forge{12.18.3.2185} [Minecraft Forge] (forge-1.10.2-12.18.3.2185.jar) 
    UCH    pixelmon{5.1.1} [Pixelmon] (Pixelmon-1.10.2-5.1.1-universal.jar) 
    Loaded coremods (and transformers): 
    GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13476 Compatibility Profile Context 22.19.171.257' Renderer: 'AMD Radeon (TM) R9 380 Series'
    Launched Version: 1.10.2-forge1.10.2-12.18.3.2185
    LWJGL: 2.9.4
    OpenGL: AMD Radeon (TM) R9 380 Series GL version 4.5.13476 Compatibility Profile Context 22.19.171.257, 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: Definitely; Client brand changed to 'fml,forge'
    Type: Client (map_client.txt)
    Resource Packs: Faithful 1.12-rv1 (1).zip
    Current Language: English (US)
    Profiler Position: N/A (disabled)
    CPU: 8x AMD FX(tm)-8320 Eight-Core Processor 
    OptiFine Version: OptiFine_1.10.2_HD_U_E3
    Render Distance Chunks: 8
    Mipmaps: 4
    Anisotropic Filtering: 1
    Antialiasing: 0
    Multitexture: false
    Shaders: null
    OpenGlVersion: 4.5.13476 Compatibility Profile Context 22.19.171.257
    OpenGlRenderer: AMD Radeon (TM) R9 380 Series
    OpenGlVendor: ATI Technologies Inc.
    CpuCount: 8

Edited June 30, 2017 by Elek

[larsgerrits]

Something is adding -Xmx512M to your JVM options, probably through the JAVA_OPTIONS environment variable. Remove it.

Edited June 30, 2017 by larsgerrits

[Elek]

6 minutes ago, larsgerrits said:

Something is adding -Xmx512M to your JVM options, probably through the JAVA_OPTIONS environment variable. Remove it.

Thank you soo much dude that fixed it <3