id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
3846	Generation of FMU with Jacobian sparsity information broken	Francesco Casella	Willi Braun	"Please consider the attached test case: a moderately complex steam generator model with top-level input and outputs is used to generate a ME FMU.

The compiler aborts with the following error message:
{{{
[C:/dev/OpenModelica/OMCompiler/Compiler/BackEnd/SymbolicJacobian.mo:1180:9-1180:86:writable]
Error: Internal error function generateSparsePattern failed"" 
}}}

The model can be simulated successfully, so it seems that there is something wrong which is specifically related to the information required by the FMU.
"	defect	closed	critical		FMI		fixed		stetrab@…