id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
2060	index reduction method causes segmentation fault	Lennart Ochel	Jens Frenkel	"The following script
{{{
loadString(""
package otherTests
  model pendulum4
    parameter Real g=9.81;
    parameter Real L=0.5;
    parameter Real m=1;
    Real x;
    Real y;
    Real vx;
    Real vy;
    Real F;
  initial equation
    y = 0.0;
    der(y) = 0.0;
  equation
    vx = der(x);
    vy = der(y);
    m*der(vx) = -x/L*F;
    m*der(vy) = -y/L*F-m*g;
    x^2+y^2=L^2;
  end pendulum4;
end otherTests;
""); getErrorString();

setIndexReductionMethod(""dummyDerivative""); getErrorString();
simulate(otherTests.pendulum4, startTime=0.0, stopTime=5.0); getErrorString();
}}}


produces the following output
{{{
true
""""
true
""""
Segmentation fault (core dumped)
}}}

for the test-file, see testsuite/simulation/modelica/others/pendulum4.mos"	defect	closed	high	1.9.0	Backend	trunk	fixed