Compiler outputs a different file after every run

[brech1]

On each compilation the circuit output is slightly different. This could be problematic for a backend, or some verification step if you're comparing compiled files. Here's an example:

First run:

4 12
8 1 1 1 1 1 1 1 1
4 1 1 1 1

2 1 2 4 10 AMul
2 1 7 0 9 AMul
2 1 3 5 8 AMul
2 1 6 1 11 AMul

Second run:

4 12
8 1 1 1 1 1 1 1 1
4 1 1 1 1

2 1 2 5 8 AMul
2 1 0 4 9 AMul
2 1 1 7 11 AMul
2 1 3 6 10 AMul

The change is in the input and output signal ids.