id Summary Status Owner Type Priority Milestone 4143 Initialization of systems with dynamic state selection is not handled properly assigned Karim Adbdelhak defect blocker 2.0.0 4293 Bad strategy to solve rational equations assigned Karim Adbdelhak defect blocker 2.0.0 4611 Processing arrays of records fails reopened Karim Adbdelhak defect blocker 2.0.0 5252 Misleading and incomplete output regarding conflicting start and nominal attributes new Lennart Ochel defect blocker 2.0.0 5302 PowerSystems models with redundant intial conditions cannot be handled by backend new Lennart Ochel defect blocker 2.0.0 5452 Numerical issues due to missing index reduction reopened Karim Adbdelhak defect blocker 1.19.0 5574 Failed to solve linear system of equations because of wrong dynamic state selection new Lennart Ochel defect blocker 1.19.0 5590 Bad dynamic state selection leads to singular initialization new Karim Adbdelhak defect blocker 1.19.0 5600 removeEqualFunctionCalls should be better documented and merged with comSubExp new Lennart Ochel defect blocker 2.0.0 5857 MSL OpAmp simulation results in OM new Lennart Ochel defect blocker 2.0.0 6053 Issue with ASCC and state selection in HanserModelica new Karim Adbdelhak defect blocker 1.19.0 6102 IDAS sensitivity yields absurd results new Karim Adbdelhak defect blocker 1.19.0 6150 The debugger output with dummy derivatives is inconsistent and confusing new Karim Adbdelhak defect blocker 1.19.0 6175 stateSelect regression from v1.14.1 to v1.16.0 assigned Karim Adbdelhak defect blocker 1.19.0 6196 Undetected high-index DAE or incorrectly handled overdetermined initialization in Buildings model (was: Bogus linear tearing in Buildings model) assigned Karim Adbdelhak defect blocker 1.19.0 6237 Wrong behaviour with conditional equation driven by boolean variable new Karim Adbdelhak defect blocker 1.19.0 6294 The complexity of matching and sorting deteriorated badly between 1.13 and 1.14 new Karim Adbdelhak defect blocker 1.19.0 1478 Handling mixed systems containing discrete iteration variables assigned somebody defect critical Future 2548 libs paramerter of SimCode.makefileParams for msvc is not correct assigned Adrian Pop defect critical Future 2634 underdetermined initialization problems lead to division by zero new Lennart Ochel defect critical Future 3905 findZeroCrossings scales as O(N^2) new Martin Sjölund defect critical 4050 Array of component: Too many equations. new Lennart Ochel defect critical 2.0.0 4131 Superfluous variables and parameters are part of the simulation new Lennart Ochel defect critical Future 4362 Always check how new methods scale with the problem size new Lennart Ochel discussion critical 4903 Memory leak? new Lennart Ochel defect critical 5041 assert on parameters are not called in the right order new Lennart Ochel defect critical 5099 Merging min/max attributes for alias elimination new Karim Adbdelhak enhancement critical 5148 Changes of integer input of FMU are ignored new Lennart Ochel defect critical Future 5531 Implicit cast from Real to Integer assigned Andreas Heuermann defect critical 2.0.0 5725 Issues with start values in ThermoSysPro new Karim Adbdelhak defect critical 5813 Improve selection of start attributes for alias variables new Francesco Casella defect critical 5917 New Backend proposal assigned Karim Adbdelhak enhancement critical 2.0.0 6166 Fluid/Examples/PumpingSystem can't be simulated assigned Andreas Heuermann defect critical 6254 Backend fails with discrete-time first order model assigned Andreas Heuermann defect critical 6285 Minimal tearing failing for example from MSL reopened Andreas Heuermann defect critical 6315 Issue with initial equation generation in Physiolibrary new Karim Adbdelhak defect critical 6351 Severe memory management issue in Ubuntu reopened Martin Sjölund defect critical 1232 Equation systems in when equations not handled correctly assigned Willi Braun defect high Future 1427 Assignment of continuous signals to discrete variables should be rejected assigned Lennart Ochel defect high Future 1441 Removing STMT_TUPLE_ASSIGN new Martin Sjölund defect high Future 1451 Backend scaling for simple array-equation assigned Patrick Täuber defect high Future 1551 "Index reduction fails for ""simple"" model" new Martin Sjölund defect high Future 1552 Optimize algorithm sections whenever possible assigned Willi Braun defect high Future 1643 FMU is not re-initialized after set continuous state assigned Jens Frenkel defect high Future 1688 Reinit of non-state variables assigned Lennart Ochel defect high Future 1822 Replaceable type cannot unify with itself new somebody defect high Future 1884 incompatible types when assigning to type 'modelica_real' from type 'modelica_string' assigned somebody defect high Future 1899 Discusssion on how to make the generated code smaller new somebody discussion high Future 1929 Multibody USR and SSR joints have wrong initialization values assigned Willi Braun defect high 2.0.0 1940 Multibody USR and SSR joints have wrong simulation values reopened Willi Braun defect high Future 2080 Mechanics.MultiBody.Examples.Constraints.PrismaticJoint assigned Lennart Ochel defect high Future 2120 Make sure solving for a variable always solves the equation assigned Patrick Täuber defect high Future 2287 algorithm assigning an array fails during transformation new probably noone defect high Future 2292 wrong generated C code assigned Lennart Ochel defect high 2319 no support for discrete equation systems new probably noone defect high Future 2463 Error when removing simple equations for a simple model new probably noone defect high Future 2466 Over-determined system new probably noone defect high Future 2473 FMU Export Option 32bit/64bit version new probably noone enhancement high Future 2492 Add dumpDAEXML option to OMEdit 'XML' menu new probably noone enhancement high Future 2500 premature optimization when generating simulation code assigned Adrian Pop defect high Future 2502 array equations may matched inconsistent new Willi Braun defect high Future 2520 model including two SpringDamper blocks leads to compiler error assigned Karim Adbdelhak defect high 2576 Partial Function Evaluation in Backend for Spice3 new probably noone defect high Future 2577 derivatives start-value new probably noone defect high Future 2582 do more check in checkModel new probably noone defect high Future 2584 How to handle bad used StateSelect.never attribute? new probably noone discussion high Future 2599 Handling of (tuple) = f(...) when solving non-linear new probably noone defect high Future 2605 Can MathML blocks be nested in the XML dump? new probably noone defect high Future 2618 Reinitial in algorithm section also continuos relations assigned Karim Adbdelhak defect high Future 2647 Expression.simplify is way too slow new probably noone enhancement high Future 2689 mapping of zero crossings to equations does not work properly assigned Karim Adbdelhak defect high 2.0.0 2774 Vectors are not detected as discrete variables new Willi Braun defect high Future 2820 initialization of discrete states accepted Lennart Ochel defect high Future 2847 OM recognizes an algebraic loop where there is none. new somebody defect high Future 2883 Restructuring SimCode phase new Lennart Ochel task high Future 2934 Flattening(?) of simple model with external function fails new somebody defect high Future 2967 Pantelides fails for arrays new somebody defect high Future 2969 differentiate delay expr assigned Andreas Heuermann defect high Future 2973 relations vs. zero crossings new somebody discussion high Future 2997 Zero-crossings in algorithm sections new somebody defect high Future 3024 Support for if equations inside when equations new somebody defect high Future 3066 ExpressionSolve cant't solve cast reopened somebody defect high Future 3069 Model needs very long simulation time with Cellier Tearing accepted Patrick Täuber defect high Future 3079 Start values are not calculated properly if they depend on secondary parameters new Lennart Ochel defect high Future 3111 Convergence issues on nonlinear equations involving der() accepted Willi Braun defect high 3116 Make warning/error message from the nonlinear solver more informative new somebody defect high 3117 Evaluate functions of parameters/constants only once (required by data-based interpolation functions) new somebody enhancement high Future 3118 Convergence issues on nonlinear equations not involving der() accepted Willi Braun defect high 3133 Uncertainties and OpenTURNS support is broken accepted Adrian Pop defect high Future 3191 Modelica.Fluid.Examples.HeatingSystem fails in combination with replaceHomotopy=actual new somebody defect high Future 3216 cseCall and DIVISION new somebody defect high Future 3230 Initialization handles when-clauses within algorithms wrong accepted Lennart Ochel defect high Future 3257 hpcom and algebraic systems new somebody defect high Future 3272 VehicleInterfaces.Examples.FrontWheelDriveManualVehicle generates bad results new somebody defect high Future 3293 Array of records containing array get wrong equation count. new somebody defect high Future 3307 translation fails because of (lack of) potential and flow variables where all signals are inputs or outputs new somebody defect high Future 3383 Issues with Modelica_Noise Beta 1 Backend assigned Per Östlund defect high Future 3397 Sorting of algebraic loops can affect solvability new somebody defect high Future 3418 Bad performance of Spice3BenchmarkFourBitBinaryAdder dominating MSL 3.2.1 tests new somebody defect high Future 3478 Performance issue for Chemical.Examples.AcidBase.AlbuminTitration accepted Lennart Ochel defect high Future 3498 Wrong generation of base partitions reopened Lennart Ochel defect high Future 3511 BackendDAEUtil.tryToSolveOrDerive don't use functionTree assigned Lennart Ochel defect high Future 3668 Memory allocation of the back-end and code generation grows quadratically with the system size assigned Willi Braun defect high Future 3689 Missing warning for StateSelect.always reopened Karim Adbdelhak defect high 3695 removeSimpleEquations is slow on large models new Willi Braun defect high 2.0.0 3781 Fix scaling of detectJacobianSparsePattern assigned Karim Adbdelhak defect high 3832 Wrong min/max attributes for derivatives in equation systems new Lennart Ochel defect high Future 3849 Wrong constant evaluation of final parameter arrays in the back-end accepted Adrian Pop defect high Future 3851 optimized zero crossings for cpp runtime assigned Willi Braun defect high 3886 Identically unit information for states and state derivatives accepted Lennart Ochel defect high Future 3921 Introduce wrapFunctionCalls and CSE also for the initial equations assigned Karim Adbdelhak enhancement high 3957 Simulation errors with hierarchical state machines in Modelica 3.3 assigned Bernhard Thiele defect high Future 3996 Massive slowdown when using generate_icon.py new Lennart Ochel defect high Future 3997 Missing replacement of identifiers when inlining functions assigned Adrian Pop defect high Future 3998 OMC does not search in the correct places for libs under Linux accepted Martin Sjölund defect high Future 4025 Incorrect XML File Export for Shipping Model new Lennart Ochel defect high Future 4041 Wrong structural singular equation system assigned somebody defect high 4118 removeSimpleEquation failed new Lennart Ochel defect high 4122 Simulation fails in OpenModelica, Works in JModelica assigned Willi Braun defect high Future 4127 Losing Loop with ArrayEquations?? new somebody defect high Future 4129 Inefficient array code generation new Lennart Ochel defect high 4168 DAE index reduction in clocked partitions new Lennart Ochel defect high 4270 Sorting of Eqns and Variable in Backend reopened Willi Braun defect high 4301 Feature to break the simulation when the steady state has been reached accepted Lennart Ochel enhancement high Future 4374 Wrong analysis of linearity due to missing jacobian new Willi Braun defect high Future 4398 comSubExp scales as O(N^2) reopened Volker Waurich defect high 4411 Odd error-message for over-determined system new Lennart Ochel defect high Future 4412 Error with Protected Elements accepted Lennart Ochel defect high 4420 OpenModelica hangs for minutes on examples that are otherwise solvable in milliseconds assigned Patrick Täuber defect high Future 4429 Builtin function cardinality is not implemented in Ceval.cevalBuiltinHandler new Adrian Pop defect high Future 4430 MDD clocked SerialPackager models fail to translate new Lennart Ochel defect high Future 4451 Unspecific error message: The given system is mixed-determined. assigned Lennart Ochel enhancement high 2.0.0 4470 Bad performance of tearing for large scale models new Patrick Täuber defect high Future 4500 Reinit of variables new Jal Panchal defect high Future 4519 Solving equations with a division by zero assigned defect high Future 4535 Structural singularity related to electric ground placement new Lennart Ochel defect high Future 4560 BackendDAE.adjacencyRowEnhanced fails with array function new Lennart Ochel defect high Future 4589 Investigate using AvlSetInt for Adjacency Matrix new Lennart Ochel enhancement high Future 4591 partitionIndependentBlocksEq stack overflow new Lennart Ochel defect high Future 4637 Sort of the input and output variables in the model description new Willi Braun enhancement high Future 4700 statealias elimination breaks models new Volker Waurich defect high Future 4711 DrumBoiler model unnecessarily slow due to lack of analytic jacobiann new Patrick Täuber defect high 4740 """if noEvent()"" won't protect sqrt from being called" new Lennart Ochel defect high Future 4756 Clock partitioning should be skipped in systems without clock partitions accepted Martin Sjölund defect high 2.0.0 4777 Support modification of description string new Lennart Ochel enhancement high Future 4792 wrapFunctionCall does not work for array outputs new Lennart Ochel enhancement high 4845 Tearing of linear systems produces singular system out of moderately-sized, well-posed models assigned Andreas Heuermann defect high 4877 Optionally prune all the equations in a model that are not needed to compute the outputs new Willi Braun enhancement high Future 4881 removeEqualFunctionCalls and wrapFunctionCalls new Lennart Ochel defect high Future 4890 strange power new somebody defect high Future 4892 Execution statistics show wrong solver assigned Willi Braun defect high Future 4902 Tiny simulation steps after recent nightly build assigned Francesco Casella defect high 4952 Remove obsolete removeEqualFunctionCalls backend module assigned Lennart Ochel defect high 4998 table.getNextTimeEvent new Lennart Ochel defect high Future 5064 Inline doesn't work properly new Lennart Ochel defect high Future 5107 SymbolicJacobian.generateSparsePattern scales as O(N^2) new Willi Braun defect high 5124 Very simple model is detected as over-determined new Lennart Ochel defect high Future 5149 Discrete integer input causes internal error when generating code (but validated without any errors) new Lennart Ochel defect high Future 5300 Support the inverse annotation new Lennart Ochel defect high 2.0.0 5354 Allow to differentiate expressions w.r.t. state derivatives to compute analytic Jacobian for daeMode new Willi Braun enhancement high 5370 Modelica compiler should issue warnings when clocked equations appear outside of the when equations new Lennart Ochel discussion high 2.0.0 5390 The NF should not evaluate final record parameters unless they only depend on structural or final parameters assigned Karim Adbdelhak defect high 2.1.0 5404 Module RemoveSimpleEquations doesn't support synchronous systems assigned Karim Adbdelhak defect high 5494 RemoveSimpleEquations module should remove simple equations with parametric coefficients new Lennart Ochel discussion high Future 5496 Model structure and Jacobian for vectorized models new Lennart Ochel defect high 5559 Issues with large parameter arrays new Lennart Ochel defect high Future 5560 Make it clearer who are the candidate states in dynamic state selection sets new Karim Adbdelhak defect high 2.0.0 5570 DrumBoiler assigned Karim Adbdelhak defect high 5572 Delay operator in a for loop of an algorithm section new Lennart Ochel defect high Future 5573 Dump the jacobian dependencies on the tearing variables new Karim Adbdelhak enhancement high 5576 Solve array equation in backend for array of records new Karim Adbdelhak defect high Future 5580 --evaluateProtectedParameters should default to true new Karim Adbdelhak defect high 5624 if else ODE and Algebraic Equation new Lennart Ochel discussion high Future 5705 Simplifications of boolean variables in initialization problems new Karim Adbdelhak defect high 5770 The backend incorrectly generates a large set of nonlinear equations assigned Karim Adbdelhak defect high 5779 Enable/disable root finding new Lennart Ochel enhancement high 2.0.0 5800 OMEdit fails to simulate example model from OpenHPL assigned Per Östlund defect high 5812 Start values lost in big power plant initialization new Karim Adbdelhak defect high Future 5822 PowerSystems sensor model segfaults during matching new Lennart Ochel defect high Future 5865 Missing transformational debugger information for $cse implicit equations new Karim Adbdelhak defect high 5868 Avoid alias elimination of individual elements of an array assigned Karim Adbdelhak defect high 1.19.0 5934 auxiliary state in der-call new Lennart Ochel discussion high Future 5947 Backend cannot solve for variable indexed array elements new Karim Adbdelhak discussion high Future 6003 Code generation bug assigned Karim Adbdelhak defect high 6079 Conflict between modelica_synchronous and pulse source new Karim Adbdelhak defect high 6186 "Assert triggered during initialization despite ""not initial()"" if-statement" assigned Andreas Heuermann defect high 6236 Solve simple linear systems in closed form if that leads to simple solution new Karim Adbdelhak enhancement high 6240 Extend overconstrained connector semantics to handle dynamic branches new Karim Adbdelhak enhancement high 2.0.0 6259 Free parameters mess up FMI model structure new Karim Adbdelhak defect high 6264 An assert() is not correctly handled by OM: wrong violated equation assigned Andreas Heuermann defect high 6346 Enable analytic jacobians for daeMode assigned Karim Adbdelhak defect high 6410 Issues with simulation of Fluid-based models with NF assigned Karim Adbdelhak defect high 6433 Start values with fixed=false not appearing in NLS assigned Karim Adbdelhak defect high 1211 Nested der-expressions generates invalid simulation code assigned somebody defect normal Future 1869 detect completely constant parts new Willi Braun enhancement normal Future 2000 Modelica.Fluid.Examples.IncompressibleFluidNetwork assigned Willi Braun enhancement normal Future 2433 For loop indexes used in relations in algorithms are undefined for zero crossings new Willi Braun defect normal Future 2547 No math parsing for experiment annotation new probably noone enhancement normal Future 2609 "BackendDAE modules ""removedUnusedFunction"" hides other bugs." new probably noone defect normal Future 2638 Most Codegen* modules have dependencies to CodegenC new probably noone enhancement normal Future 3045 Erroneous Nominal min and max for swArc component assigned somebody defect normal Future 3074 Insufficient information about assertion violations accepted Willi Braun defect normal 2.0.0 3229 Make the start value of NLS iteration variable changeable in OMEdit new somebody defect normal Future 3252 Abnormal memory consumption during compilation of models with inlined functions and symbolic differentiation assigned Volker Waurich defect normal Future 3538 function outputs array slice new somebody discussion normal Future 3926 Parameter calculation with numerical Jacobian leads to wrong results accepted Willi Braun defect normal Future 4006 SimCode scales as O(N^2) in models with many when clauses and events assigned Willi Braun defect normal 4115 Clarify error message in the absence of voltage reference (ground) assigned Volker Waurich enhancement normal Future 4483 Error due to bogus dynamic state selection new Lennart Ochel defect normal 4484 Model becomes singular if equations are written inside if-else new Lennart Ochel defect normal 4584 ZeroCrossings.equals costs memory new Lennart Ochel defect normal 4588 Unit propagation and deduction. assigned Lennart Ochel discussion normal Future 5006 SimCode fails on array equations inside if equation new Lennart Ochel defect normal Future 5275 Backend issues with ThermalSeparation library new defect normal Future 5382 Simcode scales badly for models with large-sized arrays and events assigned Karim Adbdelhak defect normal 5539 Stack overflow with tearingSelect assigned Lennart Ochel defect normal Future 5601 Analyse impact: removeEqualFunctionCalls and avoid as tearing variable new somebody defect normal Future 5604 Set the options FMU Name and Move FMU at the same time new Lennart Ochel defect normal Future 1429 Some kinds of array equations are not supported assigned somebody defect low Future 1932 Redesign When Equation Implementation in Backend accepted Willi Braun enhancement low Future 4242 missing assert new Lennart Ochel defect low 4655 Derive Algorithms blocks with discrete and continuous variables new Volker Waurich enhancement low Future