Linearization returns zero for systems with independent variables

[james.goppert@…]

Linearization returns A = 0 if there are equations that are not dependent on each other.

for instance the following returns A=[0,0;0,0] instead of A = [1,0;0,1]

model Simple
  Real a(start=0);
  Real b(start=0);
equation
  der(a) = a;
  der(b) = b;
end Simple;

While the following returns A = [1,0;1,0]

model Simple
  Real a(start=0);
  Real b(start=0);
equation
  der(a) = a;
  der(b) = a;
end Simple;

[Martin Sjölund]

Yes, the bug is there. I also checked it against the partitionIndependentBlocks module (since I wrote that). And my module has nothing to do with this bug so I think Willi has to look into it.

[Willi Braun]

fixed in r12853