Coverage Issues

This page is supposed to provide an overview of remaining issues for all tested libraries. Therefore, failing models can get grouped by issue and short analyses and existing tickets can be added to guide the bug-fixing process.

Library Index

• Annex60
• BioChem
• Buildings
• ConPNlib
• FCSys
• HelmholtzMedia
• Modelica_3.1
• Modelica_3.2.1
• Modelica_3.2.2
• Modelica_Synchronous
• Modelica_trunk
• ModelicaByExample
• ModelicaTest_3.2.1
• ModelicaTest_3.2.2
• ModelicaTest_trunk
• OpenHydraulics
• PhotoVoltaics
• Physiolibrary
• PlanarMechanics
• PNlib
• PowerSystems
• SystemDynamics
• ThermoPower
• ThermoSysPro

Annex60

Priority: high (3 matches)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3840	Incorrect message about cyclic parameters		new	somebody	defect	Future
#4223	Recursive BuildModel Test: Cross reference to previous run		new	sjoelund.se	enhancement	Future
#4992	Should we skip some versions of the Buildings library in Hudson testing and in the OMC installer?		assigned	sjoelund.se	task

BioChem

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

Buildings

Priority: blocker (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#6196	Undetected high-index DAE or incorrectly handled overdetermined initialization in Buildings model (was: Bogus linear tearing in Buildings model)		assigned	Karim.Abdelhak	defect	1.19.0
Priority: critical (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5975	Numerical problems with initialization of thermofluid model in BuildingSystems		new	lochel	defect
Priority: high (9 matches)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3307	translation fails because of (lack of) potential and flow variables where all signals are inputs or outputs		new	somebody	defect	Future
#4236	Icon not rendered if visible annotation is used		assigned	sjoelund.se	defect
#4785	Memory is never given back		new	somebody	defect
#4804	IDEAS.Buildings.Examples.Structure crashes OMEdit 32 bit on Windows 10		new	somebody	defect	NeedsInput
#4992	Should we skip some versions of the Buildings library in Hudson testing and in the OMC installer?		assigned	sjoelund.se	task
#5744	Problems to simulate MSL models with OM nightly	Linux	assigned	sjoelund.se	defect	Future
#5890	buildModel() fails with 'ModelicaSystem' object has no attribute 'buildModel'		reopened	alash325	defect	Future
#6211	VDI6007.TestCaseXX models fail in Buildings		new	AnHeuermann	defect
#6263	Fix spurious remaining issues in the master testsuite		new	adrpo	defect
Priority: normal (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5635	Multi(---) connection issue		assigned	adeas31	enhancement	2.0.0

ConPNlib

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

FCSys

Priority: high (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#2881	NFScodeDependency stack overflow		reopened	perost	defect	Future

HelmholtzMedia

Priority: high (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#6088	Remaining issues with HelmholtzMedia		new	casella	defect

ModelicaByExample

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

Modelica_Synchronous

Priority: critical (2 matches)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#4215	Cannot access connectors within icon graphics or nested models		reopened	adeas31	defect
#6254	Backend fails with discrete-time first order model		assigned	AnHeuermann	defect
Priority: high (9 matches)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#2045	Initialisation of external object fails		assigned	lochel	defect	Future
#3706	OMEdit does not render some icons		assigned	adrpo	defect	Future
#4168	DAE index reduction in clocked partitions		new	lochel	defect
#4238	OMEdit shows strange behavior when loading system libraries automatically		assigned	adrpo	defect
#4272	Simulation Process Failed	Modelica_Synchronous	accepted	lochel	discussion	Future
#5496	Model structure and Jacobian for vectorized models		new	lochel	defect
#5632	Error creating an fmu with 'Modelica_DeviceDrivers' (1.7.1) block 'Blocks.Communication.UDPSend'	Modelica_DeviceDrivers, UDPSend, fmu	new	lochel	defect
#6079	Conflict between modelica_synchronous and pulse source		new	Karim.Abdelhak	defect
#6371	Modelica_Synchronus FMUs not working	fmi, Modelica_Synchronus, clock,	assigned	AnHeuermann	defect

ModelicaTest_3.2.1

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

• FrontEnd issues:
  • ​ModelicaTest.Fluid.Dissipation.Verifications.PressureLoss.StraightPipe.dp_twoPhaseOverall_DP
  • ​ModelicaTest.Fluid.TestComponents.Fittings.TestWallFriction
  • ​ModelicaTest.Math.MatricesInModel
  • ​ModelicaTest.Media.TestAllProperties.MoistAir

• Division by zero at initialization:
  • ​ModelicaTest.Fluid.TestComponents.NewFittings.Bends.CurvedBend
  • ​ModelicaTest.Fluid.TestComponents.NewFittings.Bends.EdgedBend
  • ​ModelicaTest.Fluid.TestComponents.NewFittings.Orifices.ThickEdgedOrifice

• Assert in non-linear loops or fail to solve a non-linear system at initialization:
  • ​ModelicaTest.Fluid.TestComponents.Fittings.TestSuddenExpansion
  • ​ModelicaTest.Fluid.TestExamplesVariants.HeatingSystem_SteadyState
  • ​ModelicaTest.Fluid.TestPipesAndValves.LumpedPipeInitialization
  • ​ModelicaTest.Fluid.TestExamplesVariants.HeatingSystem_FixedInitial

• Simulation terminated by an assert:
  • ​ModelicaTest.Fluid.TestComponents.Sensors.TestTemperature1
  • ​ModelicaTest.Fluid.TestComponents.Vessels.TestSimpleTank
  • ​ModelicaTest.MultiBody.Joints.SphericalSpherical2
  • ​ModelicaTest.MultiBody.Joints.UniversalSpherical

ModelicaTest_3.2.2

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

ModelicaTest_trunk

Priority: blocker (2 matches)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5036	Better code generation for constant arrays		new	lochel	defect	2.0.0
#5590	Bad dynamic state selection leads to singular initialization		new	Karim.Abdelhak	defect	1.19.0
Priority: high (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3963	Split C source code in more files for more efficient parallel compilation		new	lochel	enhancement

Modelica_3.1

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

Modelica_3.2.1

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

Following 5 models are missing for the full coverage of the cRuntime here.

• ​Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMC_YD
  • fails with alarm clock
  • works in our testsuite, because omcTearing is used
  • IndexReduction seems okay
  • works with a different sorting -> +preOptModules+=sortEqnsVars
  • -> probably really a tearing issue of select corrent iteration variable

• ​Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SMEE_Generator_MultiPhase
  • singular linear system while simulation, initialization is solved via totalpivot
  • works with different sorting -> +preOptModules+=sortEqnsVars or other remove simple equation module +removeSimpleEquations=none|new
  • fails without tearing
  • -> most likely an IndexReduction issue #3691

• ​Modelica.Electrical.Spice3.Examples.Spice3BenchmarkDifferentialPair
  • Combination of Nonlinear and Dassl > initialization passes -> solver
  • the algebraic loops differs a lot compared with dymola 52 varibale and we have 29.
  • IndexReduction seems okay.
  • -> perhaps bad algorithm handling

• ​Modelica.Fluid.Examples.Explanatory.MomentumBalanceFittings
  • non-linear system fails at initialization
  • dymola also struggles with it
  • -> stream handling, non-linear solver issue or model error

• ​Modelica.Fluid.Examples.HeatingSystem
  • non-linear system fails at initialization
  • has dynamic stateSelection, but even with "stateSelect" always on dymola states it fails.
  • non-linear problem that fails is mixed
  • homotopy is used
  • -> perhaps mixed non-linear problem or homotopy handling

Modelica_3.2.2

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
No tickets found

Modelica_trunk

Priority: blocker (3 matches)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5005	Issue with DASSL/IDA and implicit systems with non-smooth functions		assigned	wbraun	defect	2.0.0
#5347	Issues with MSL library handling in Linux		reopened	sjoelund.se	defect	1.19.0
#5855	Achieve successful simulation of 100% MSL 4.0.0 models		new	casella	defect	2.0.0
Priority: critical (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5291	Issue with Modelica.Mechanics.MultiBody.Examples.Elementary.RollingWheel in OMEdit		new	adeas31	defect

The following models fail within runtime stage:

• Solving (non-)linear system failed during simulation:
  • ​Modelica.Electrical.Analog.Examples.OpAmps.Multivibrator
  • ​Modelica.Electrical.Analog.Examples.OpAmps.SignalGenerator
  • ​Modelica.Electrical.Spice3.Examples.Spice3BenchmarkDifferentialPair
  • ​Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.AIMC_DOL_MultiPhase
  • ​Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SMEE_Generator_MultiPhase
    • ticket:3739
  • ​Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_DOL
    • linear system failed
• Solving non-linear system failed during initialization:
  • ​Modelica.Fluid.Examples.Explanatory.MomentumBalanceFittings
    • While solving non-linear system an assertion failed during initialization.
  • ​Modelica.Fluid.Examples.HeatingSystem
    • While solving non-linear system an assertion failed during initialization.
    • ticket:3739

The following models fail due to alarm clock:

• ​Modelica.Fluid.Examples.IncompressibleFluidNetwork

Failed to compile regular expression:

• ​Modelica.Electrical.Spice3.Examples.Spice3BenchmarkFourBitBinaryAdder

The following models fail within (back end) initialization stage:

• ​Modelica.Magnetic.FluxTubes.Examples.Hysteresis.ThreePhaseTransformerWithRectifier
  • Initialization problem is structurally singular
  • ticket:3739
• ​Modelica.Mechanics.Rotational.Examples.GenerationOfFMUs
  • Error: The given system is mixed-determined. [index > 3]
  • ticket:3739

The following models fail within sim code/code generation stage:

• ​Modelica.Media.Examples.SolveOneNonlinearEquation.InverseIncompressible_sh_T
  • error: use of undeclared identifier '_poly_Cp'
• ​Modelica.Media.Incompressible.Examples.TestGlycol
  • error: use of undeclared identifier '_poly_Cp'
• ​Modelica.Utilities.Examples.ReadRealMatrixFromFile
  • [SimCodeUtil.mo:497:5-497:146:writable] Error: Internal error function createSimCode failed
  • ticket:3739

OpenHydraulics

Priority: normal (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5683	Mediums in fluid systems require explicit redeclare in OMEdit	Fluid, Medium	new	somebody	defect	Future

PhotoVoltaics

Priority: blocker (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#4222	Previously simulating models do not work any more	PhotoVoltaics	accepted	lochel	defect	Future
Priority: high (2 matches)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#4352	Choosing record results in setComponentModifierValue error message	setComponentModifierValue record parameter	new	somebody	defect	Future
#5744	Problems to simulate MSL models with OM nightly	Linux	assigned	sjoelund.se	defect	Future

Physiolibrary

Priority: critical (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#6315	Issue with initial equation generation in Physiolibrary		new	Karim.Abdelhak	defect
Priority: high (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#6301	Generation of documentation gets stuck		new	adrpo	defect

PlanarMechanics

Priority: high (2 matches)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3397	Sorting of algebraic loops can affect solvability		new	somebody	defect	Future
#5744	Problems to simulate MSL models with OM nightly	Linux	assigned	sjoelund.se	defect	Future

PNlib

Priority: blocker (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#2894	Summary of improvements for OMEdit GUI usability		accepted	adeas31	enhancement	2.0.0
Priority: critical (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#4050	Array of component: Too many equations.	PNlib	new	lochel	defect	2.0.0
Priority: high (2 matches)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3495	Issue with array indices in generated code		accepted	mahge930	defect	Future
#4412	Error with Protected Elements	protected, PNlib	accepted	lochel	defect

PowerSystems

Priority: blocker (2 matches)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5302	PowerSystems models with redundant intial conditions cannot be handled by backend		new	lochel	defect	2.0.0
#6126	Error while compiling wind turbine model from PowerSystems library		assigned	perost	defect	1.19.0
Priority: critical (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3186	Partial binding of record sub-components in functions are lost		assigned	perost	defect	2.0.0
Priority: high (5 matches)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3997	Missing replacement of identifiers when inlining functions		assigned	adrpo	defect	Future
#4003	OMEdit uses wrong modelica:// path		reopened	adrpo	defect
#4041	Wrong structural singular equation system		assigned	somebody	defect
#5499	setParameters of ModelicaSystem has no effect on simulation		new	alash325	defect	Future
#5822	PowerSystems sensor model segfaults during matching		new	lochel	defect	Future

SystemDynamics

Priority: high (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5744	Problems to simulate MSL models with OM nightly	Linux	assigned	sjoelund.se	defect	Future

ThermoPower

Priority: blocker (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#2894	Summary of improvements for OMEdit GUI usability		accepted	adeas31	enhancement	2.0.0
Priority: high (15 matches)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#3015	OMEdit Plots are not correct		assigned	adeas31	defect	Future
#3111	Convergence issues on nonlinear equations involving der()		accepted	wbraun	defect
#3116	Make warning/error message from the nonlinear solver more informative		new	somebody	defect
#3117	Evaluate functions of parameters/constants only once (required by data-based interpolation functions)		new	somebody	enhancement	Future
#3118	Convergence issues on nonlinear equations not involving der()		accepted	wbraun	defect
#3843	Write .log file directly to disk		new	somebody	defect
#5141	Issues with the solution of fluid system models with low delta-p components		new	lochel	defect
#5341	OMEdit claiming flowrate variable is not constant	variable, constant, ThermoPower, translation, error	new	lochel	defect	Future
#5351	HRSG Cloned Library Component / re-occuring pump error	pump, flowCharacteristic, q_nom, head_nom, ThermoPower	assigned	casella	defect	2.0.0
#5363	Is it currently possible to create/model systems off of the ThermoPower Library in OpenModelica?	ThermoPower, Rankine	assigned	adrpo	discussion	Future
#5368	Nightly Build 1.14.0 giving odd Syntax Warnings and Effecting Old Simulation Results	Brayton, Nightly, Build, NightlyBuild	new	somebody	defect	Future
#5371	Heat Exchanger Model works & simulates but doesn't actually transfer energy to raise outlet temperature	HE, results, simulation, FlueGas, Water, ThermoPower	new	lochel	defect	Future
#5374	How do I solve Modelica errors of variables, where the variables are parameters of extensions that your model is using?	Error, Structurally, Singular, Structurally Singular, Translation Error, Variable Not Found,	new	somebody	discussion	Future
#5376	How can I simulate my models better and more specifically?	HX, Heat Exchanger, Simulation	new	lochel	defect	Future
#5414	Unsolvable Error pertaining to variable not found within model		new	lochel	defect	Future
Priority: normal (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5688	Use of removed conditional component not reported		new	perost	defect	Future

• FrontEnd
  • ​ThermoPower.Examples.HRB.Simulators.OpenLoopSimulatorHtc

• non-linear system an assertion failed during initialization:
  • ​ThermoPower.PowerPlants.Simulators.CCPP_Sim3 (BUG: 3825)
  • ​ThermoPower.PowerPlants.Simulators.SteamPlant_Sim1 (BUG: 3825)
  • ​ThermoPower.PowerPlants.Simulators.SteamPlant_Sim1_dp (BUG: 3825)
  • ​ThermoPower.PowerPlants.Simulators.SteamPlant_Sim2 (BUG: 3825)

• alarm clock -> nonlinear algebraic loops(?!?)
  • ​ThermoPower.Examples.RankineCycle.Simulators.ClosedLoop (initialization)

ThermoSysPro

Priority: critical (1 match)

Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#5725	Issues with start values in ThermoSysPro		new	Karim.Abdelhak	defect
Priority: high (1 match)
Ticket	Summary	Keywords	Status	Owner	Type	Milestone
#4429	Builtin function cardinality is not implemented in Ceval.cevalBuiltinHandler	cardinality. ThermoSysPro	new	adrpo	defect	Future

failing tests

• Solving non-linear system at initialization (mixed system):
  • ​SimpleExamples.TestWaterHammer