id Summary Status Type Priority Milestone Component 3977 Better diagnostics for non-balanced models new enhancement blocker 2.0.0 New Instantiation 4032 Using Extern C function compiler generates duplicate variables. new defect blocker Future Code Generation 4222 Previously simulating models do not work any more accepted defect blocker Future Initialization 5036 Better code generation for constant arrays new defect blocker 2.0.0 Code Generation 5252 Misleading and incomplete output regarding conflicting start and nominal attributes new defect blocker 2.0.0 Backend 5302 PowerSystems models with redundant intial conditions cannot be handled by backend new defect blocker 2.0.0 Backend 5547 Including c-files from external_solvers for nonlinearSolverHomotopy new enhancement blocker 2.0.0 FMI 5574 Failed to solve linear system of equations because of wrong dynamic state selection new defect blocker 1.19.0 Backend 5581 FMU - ME accuracy new defect blocker 2.0.0 FMI 5600 removeEqualFunctionCalls should be better documented and merged with comSubExp new defect blocker 2.0.0 Backend 5621 Issue with FMI import reopened defect blocker 1.19.0 FMI 5775 memory leak in FMUs using CombiTimeTable new defect blocker 1.19.0 FMI 5857 MSL OpAmp simulation results in OM new defect blocker 2.0.0 Backend 5926 Save a proper result file when interrupting a simulation new defect blocker 2.0.0 Run-time 6071 "Don't show parameter edits in FMU created with ""Evaluate all parameters""" assigned defect blocker 1.19.0 FMI 2634 underdetermined initialization problems lead to division by zero new defect critical Future Backend 3105 Parameters and variables available in FMI accepted enhancement critical FMI 3792 Variable override not working with restart accepted defect critical Future Run-time 4024 Bugs in generating xml files new defect critical Code Generation 4050 Array of component: Too many equations. new defect critical 2.0.0 Backend 4131 Superfluous variables and parameters are part of the simulation new defect critical Future Backend 4362 Always check how new methods scale with the problem size new discussion critical Backend 4903 Memory leak? new defect critical Backend 4957 Inefficient code generated for record derivatives new defect critical Future Code Generation 5041 assert on parameters are not called in the right order new defect critical Backend 5148 Changes of integer input of FMU are ignored new defect critical Future Backend 5616 Handling of indexing in arrays of records new defect critical 2.0.0 Code Generation 5748 FMU crashing matlab new defect critical Future FMI 5823 Verification of FMI models has interpolation issues new defect critical FMI 5869 NULL-Pointer Exception caused by pool_malloc new discussion critical FMI 5888 Record's inheritance new defect critical Future OMSimulator 5971 TLM pendulum example error new defect critical OMSimulator 5975 Numerical problems with initialization of thermofluid model in BuildingSystems new defect critical Run-time 6019 previous(y) is chattering in a discrete-time model new defect critical Run-time 1427 Assignment of continuous signals to discrete variables should be rejected assigned defect high Future Backend 1688 Reinit of non-state variables assigned defect high Future Backend 2045 Initialisation of external object fails assigned defect high Future Run-time 2080 Mechanics.MultiBody.Examples.Constraints.PrismaticJoint assigned defect high Future Backend 2292 wrong generated C code assigned defect high Backend 2717 Exporting a model as XML code file not completed new defect high Future Code Generation 2804 codegen error if one is using Modelica.Utilities.Streams.readLine new defect high Future Code Generation 2820 initialization of discrete states accepted defect high Future Backend 2883 Restructuring SimCode phase new task high Future Backend 3079 Start values are not calculated properly if they depend on secondary parameters new defect high Future Backend 3230 Initialization handles when-clauses within algorithms wrong accepted defect high Future Backend 3390 Issues with unparsing the type of variable in model_init.xml new defect high Future Code Generation 3419 Function signatures for type safe function partial application new defect high Future Code Generation 3454 Wrong results after the latest back end changes new defect high Future FMI 3478 Performance issue for Chemical.Examples.AcidBase.AlbuminTitration accepted defect high Future Backend 3498 Wrong generation of base partitions reopened defect high Future Backend 3511 BackendDAEUtil.tryToSolveOrDerive don't use functionTree assigned defect high Future Backend 3526 Code generation fails for array in records new defect high Future Code Generation 3572 Clarifications in the Compiler Flag Documentation accepted defect high *unknown* 3586 FMI import crashes assigned defect high Future FMI 3810 New runtime flag -overrideSettings accepted defect high Future Run-time 3832 Wrong min/max attributes for derivatives in equation systems new defect high Future Backend 3886 Identically unit information for states and state derivatives accepted defect high Future Backend 3931 Do not generate stupid equations new enhancement high Future Initialization 3963 Split C source code in more files for more efficient parallel compilation new enhancement high Code Generation 3996 Massive slowdown when using generate_icon.py new defect high Future Backend 4025 Incorrect XML File Export for Shipping Model new defect high Future Backend 4037 Unification of command line options among multiple runtimes accepted enhancement high Run-time 4113 $ is invalid in C identifiers new defect high Future Code Generation 4118 removeSimpleEquation failed new defect high Backend 4129 Inefficient array code generation new defect high Backend 4168 DAE index reduction in clocked partitions new defect high Backend 4272 Simulation Process Failed accepted discussion high Future Run-time 4301 Feature to break the simulation when the steady state has been reached accepted enhancement high Future Backend 4384 Memory management of pre values new discussion high Future Run-time 4411 Odd error-message for over-determined system new defect high Future Backend 4412 Error with Protected Elements accepted defect high Backend 4430 MDD clocked SerialPackager models fail to translate new defect high Future Backend 4451 Unspecific error message: The given system is mixed-determined. assigned enhancement high 2.0.0 Backend 4533 FMIL cannot delete Cpp FMUs binaries assigned defect high Future FMI 4535 Structural singularity related to electric ground placement new defect high Future Backend 4560 BackendDAE.adjacencyRowEnhanced fails with array function new defect high Future Backend 4589 Investigate using AvlSetInt for Adjacency Matrix new enhancement high Future Backend 4591 partitionIndependentBlocksEq stack overflow new defect high Future Backend 4631 FMU clash with IPython and PyFMI (JSON involved) new defect high Future FMI 4641 FMU exported from OpenModelica 1.13.0 does not integrate correctly until end of integration interval (time event missing) new defect high FMI 4707 Wrong symbols naming in FMU import library new defect high Future FMI 4740 """if noEvent()"" won't protect sqrt from being called" new defect high Future Backend 4777 Support modification of description string new enhancement high Future Backend 4792 wrapFunctionCall does not work for array outputs new enhancement high Backend 4870 Do not evaluate parameter-dependent assertions at each time step. new enhancement high 2.0.0 Code Generation 4871 Avoid using DIVISION macros in the dynamic equations if the denominator is a parameter-dependent expression new enhancement high 2.0.0 Code Generation 4881 removeEqualFunctionCalls and wrapFunctionCalls new defect high Future Backend 4888 ModelicaExternalC libraries for Visual Studio are missing new defect high Future Run-time 4893 ligc segfault at fmiInstantiateModel new defect high Future Code Generation 4952 Remove obsolete removeEqualFunctionCalls backend module assigned defect high Backend 4998 table.getNextTimeEvent new defect high Future Backend 5000 Use Model_init.xml in the resources folder of FMU instead of compiling Model_init_fmu.c new defect high Future FMI 5064 Inline doesn't work properly new defect high Future Backend 5082 internal compiler error: Segmentation fault new defect high Future Code Generation 5108 Models with large arrays of parameters cause the runtime to segfault new defect high Run-time 5113 [FMI] Fix issues with input/output String/Boolean in FMUs new defect high Future FMI 5124 Very simple model is detected as over-determined new defect high Future Backend 5141 Issues with the solution of fluid system models with low delta-p components new defect high Run-time 5149 Discrete integer input causes internal error when generating code (but validated without any errors) new defect high Future Backend 5154 Strange license of FMI run-time new discussion high Future FMI 5195 Division by zero during the initialization via file (.mat), of the system of equations. assigned discussion high Future Initialization 5196 Memory leak with inline arrays in when clauses new defect high Future FMI 5214 URI expansion misinterprets control characters new defect high Future Code Generation 5267 Additional variables added in FMUs exported from OM new discussion high Future FMI 5300 Support the inverse annotation new defect high 2.0.0 Backend 5341 OMEdit claiming flowrate variable is not constant new defect high Future Initialization 5349 Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! new defect high Future OMSimulator 5353 Enhance the LOG_STATS output to tell apart time spent by the solver and by the generated code new defect high Run-time 5361 Inconsistent Variable Filter between .mat and .csv format new defect high Run-time 5370 Modelica compiler should issue warnings when clocked equations appear outside of the when equations new discussion high 2.0.0 Backend 5371 Heat Exchanger Model works & simulates but doesn't actually transfer energy to raise outlet temperature new defect high Future OMSimulator 5376 How can I simulate my models better and more specifically? new defect high Future OMSimulator 5379 Cannot execute in path containing @ new defect high Future FMI 5402 sample(...) operator does not work in Cpp FMU runtime new defect high Future Code Generation 5414 Unsolvable Error pertaining to variable not found within model new defect high Future OMSimulator 5421 New FMU (OMEdit 1.13.2) failed load from cffi in lisp new defect high FMI 5433 FMU GetString returns \x3 new defect high Future FMI 5494 RemoveSimpleEquations module should remove simple equations with parametric coefficients new discussion high Future Backend 5496 Model structure and Jacobian for vectorized models new defect high Backend 5549 Cross compilation of FMUs for Win64 on Ubuntu is broken for some models working with files new defect high 2.0.0 FMI 5552 OpenModelica FMUs seem to not report exact continuous states new defect high 2.0.0 FMI 5559 Issues with large parameter arrays new defect high Future Backend 5572 Delay operator in a for loop of an algorithm section new defect high Future Backend 5614 error in FMU instantiate in case of large models new defect high FMI 5624 if else ODE and Algebraic Equation new discussion high Future Backend 5632 Error creating an fmu with 'Modelica_DeviceDrivers' (1.7.1) block 'Blocks.Communication.UDPSend' new defect high FMI 5647 FMU export: Error in modelDescription.xml new defect high FMI 5673 Error regarding alias variables and variability new defect high Future FMI 5774 [CG] Records with one component have code generation issues new defect high Future Code Generation 5779 Enable/disable root finding new enhancement high 2.0.0 Backend 5822 PowerSystems sensor model segfaults during matching new defect high Future Backend 5894 segfault after 1020 simulations in Python 3 (but not Python 2) new defect high Future FMI 5934 auxiliary state in der-call new discussion high Future Backend 5995 FMU Export with Modelica.Utilities.Streams functions assigned defect high FMI 6080 Changing parameters of a model via Python new defect high FMI 6122 FMU/FMI not working neither for local machine nor for cross compilation new defect high Future FMI 6130 Support for FMI for Co-Simulation (2.0 Standard) new enhancement high Future FMI 6279 FMU shows parameters that should be hidden reopened defect high FMI 6332 Cannot run a SSP model with 2 looped FMUs new defect high OMSimulator 6333 Cannot define only once a FMU that is instantiated twice in a SSP model new defect high OMSimulator 6334 Cannot handle medium/large size FMUs with OMSimulator new defect high OMSimulator 6335 Cannot manage lots of FMU inputs/outputs in a SSP model with OmSimulator new enhancement high Future OMSimulator 6336 Error when loading a simple Dymola FMU in an SSP model accepted defect high OMSimulator 6344 How to reopen the .csv file of a SSP model run? accepted discussion high OMSimulator 6355 Can I get more information on the variable steppers oms-mav et oms-mav-2? new discussion high NeedsInput OMSimulator 6368 FMU export contains none unique value references to variables new defect high NeedsInput FMI 6369 FMU export contains none unique value references to variables new defect high NeedsInput FMI 6401 buildFMU with min, max values of variable new defect high FMI 6426 Solver export to fmu new task high NeedsInput FMI 2979 Underscores in function pointer names causes invalid generated code new defect normal Future Code Generation 3138 Eliminate missleading warnings concerning [min, max]-asserts accepted enhancement normal Future Run-time 3547 Initial event is not propagated as expected new defect normal Future Initialization 3890 Code generation for function pointers treat underscores wrong new defect normal Future Code Generation 3954 Potential bugs from static code analysis new defect normal Future Code Generation 4483 Error due to bogus dynamic state selection new defect normal Backend 4484 Model becomes singular if equations are written inside if-else new defect normal Backend 4584 ZeroCrossings.equals costs memory new defect normal Backend 4588 Unit propagation and deduction. assigned discussion normal Future Backend 4706 Missing --output-def flag in Makefile (for Windows) in FMU sources new defect normal Future FMI 5006 SimCode fails on array equations inside if equation new defect normal Future Backend 5266 FMU export improvment new enhancement normal FMI 5311 Bad behavior of FMUs exported from OM when stopTimeDefined is set to fmi2True new defect normal FMI 5315 Compiler fails when model has a long fileNamePrefix new defect normal Future FMI 5330 csvInput does not handle Integer inputs and needs an extra comma at line end new defect normal Run-time 5429 SimulationInfos are not correctly saved in FMU init file new discussion normal Future FMI 5432 Omitting stopTime in modelDescription.xml new enhancement normal Future FMI 5526 MetaModelica: loop over list new defect normal Future Code Generation 5539 Stack overflow with tearingSelect assigned defect normal Future Backend 5604 Set the options FMU Name and Move FMU at the same time new defect normal Future Backend 5883 Elements which have been inserted can't be deleted anymore new defect normal OMSimulator 5884 Supporting OSI-interfaces new enhancement normal Future OMSimulator 5966 Functional argument binding: wrong type mismatch error thrown new defect normal Future Code Generation 6143 Drop support for FMI 1.0 new discussion normal FMI 1.0 6354 Result file from OMSimulator contains all lines in double accepted defect normal OMSimulator 6356 After a SSP model run, the model is taggued as modified and should not accepted defect normal OMSimulator 3555 Add option to save intermediate values at event iterations to result files? accepted enhancement low Future Run-time 3972 Redefinition of OMC_FILE macro new defect low Future Code Generation 4242 missing assert new defect low Backend