1> Try to Uncheck and check "Enable ADB Integration" this might sort the issue out.
2> Try to remove the libstdc++.so.6 so system is by default. ie:
~/Android/Sdk/emulator/lib64/libstdc++$ mv libstdc++.so.6 libstdc++.so.6.bak
Try also following:
1)Try reinstalling Android SDK to folder fresh.
2)create another emulator by deleting existing one.
3)New Virtual Device could be created.
4)change "Max VM application heap size" to 192 or higher.