--- Circuit --- 
CountCons : 3
Infix     : ((1.0 | 0.25) - 1.5)
CountCons : 1
Infix     : 1.7
--- Circuit --- 
CountCons : 2
Infix     : ((1.0 | 0.25) - x)
CountCons : 1
Infix     : (0.2 - x)
--- Circuit --- 
CountCons : 4
Infix     : (foo - ((1.0 - 2.0) - (3.0 - 4.0)))
CountCons : 1
Infix     : (foo - 10.0)
--- Circuit --- 
CountCons : 4
Infix     : (((1.0 - 2.0) - (3.0 - 4.0)) | x)
CountCons : 1
Infix     : (10.0 | x)