referenced a variable that was not declared as a <variable>

[Lennart Ochel]

This model should probably be simulated without errors:

model foo
  Real a;
  Real b(fixed=true);
initial equation
  pre(a) = b^2;
equation
  der(a) = time;
  when initial() then
    b = pre(a);
  end when;
end foo;

output:

assert            | assert  | Referenced '$PRE._a' that was not declared as <variable>


Process crashed

[Lennart Ochel]

With +d=initialization I get also:

Assuming fixed start value for the following 1 variables:
         a:VARIABLE() .foo, .Real type: Real

This is wrong. The initial conditions are already fully specified.

[Adeel Asghar]

OMEdit passes the -lv=LOG_STATS flag to the executable by default. This flag is making the executable crash. I will investigate about it a bit more tonight. But perhaps you can have a look at the way flags of the executable are used since you have rewritten them.

[Adeel Asghar]

A little bit of more debugging shows that the problem is not with simulation flags. The -lv=LOG_STATS enables the measure_time_flag and the process will go onto reading of the model_info.xml file.

In SimCodeDump.tpl we are writing the xml file. Either the equations tag writing should be corrected or we should add the variable that is referenced in the equation to the variables tag.

[Lennart Ochel]

Good hint. I had forgotten that OMEdit passes LOG_STATS per default. Now things make sense again :-)

[Lennart Ochel]

Fixed in r16898. I added the $PRE._* variables tot he model_info.xml.

[Lennart Ochel]

Replying to lochel:

With +d=initialization I get also:

Assuming fixed start value for the following 1 variables:
         a:VARIABLE() .foo, .Real type: Real

This is wrong. The initial conditions are already fully specified.

I fixed this already some revision ago.