id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4118	removeSimpleEquation failed	Vitalij Ruge	Lennart Ochel	"{{{#!modelica
model foo
  function f
    input Real[2] x;
    output Real[2] y;
    output Real[2] z;
  algorithm
    y[1] := 2*x[1]^2 + 1; y[2] := 3*x[2]^3 + 2;
    z[1] := -y[1]/2+1/2+7; z[2] := -y[2]/3+2/3-7;
  end f;

  Real[2] y(each start = -1);
  Real[2] w(each start = -1);
  Real z1, z2, z3;
equation
  (, w) = f({y[1] + z3, y[2]});
  der(w) = f({y[1] + z3, y[2]});
  der(y[1]) = -z1*y[2] +1;
  der(y[2]) = -z2*y[1] + z1*y[2] +3;
  z3 = time;
end foo;
}}}

failed with
{{{#!bash
[/home/vruge/OM/OMCompiler/Compiler/Util/BaseHashTable.mo:119:5-119:104:writable] Error: Internal error Got internal hash table size 0 <1
Error: post-optimization module removeSimpleEquations (simulation) failed.
}}}"	defect	new	high		Backend				Volker Waurich Willi Braun