4.4 kitkat - Moto E Not Starting Properly After Changing runtime to ART

I have recently bought a MOTO E and it's working cool. Then I have enabled Developer options and changed my runtime from Dalvik to ART. Afterwards I restarted my device. I got the message saying Android is upgraging. After completeing the process I got exceptions like

unfortunately the process com.android.phone has stopped

Please help me how to get out of this problem. I am getting that message for around 10 times and mobile restarting once again.

Answer

/data/property/persist.sys.dalvik.vm.lib contains the name of the runtime library you wish to use - libart.so or libdvm.so. So, you can switch back to Dalvik like so:

adb shell 'echo libdvm.so >/data/property/persist.sys.dalvik.vm.lib'

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