Multisim simulation of AVR fusebit doctor
As I commented, your battery is definitely backwards, and your multimeter XMM1 is as well. the switches in your switch S1 look like they are not in the proper positions. One should be up, and one should be down. They should never be both up or down.

What should happen is that if the right one is on and the left one off, you should read ~0V. If the left one is on and the right is off, you should read 12V. You'll have to experiment to see which way round the switch goes (up=off or on)