Model:  Modelica.Electrical.Digital.Examples.DFFREGSRH
Time:    0.007 s
Success: false

--- Error ---
The equations of a system must involve the unknowns/observables. The following equations were found to have no unknowns/observables:
var"dFFREGSRH.delay.x[1]" ~ var"dFFREGSRH.delay.inertialDelaySensitive[1].x"
var"dFFREGSRH.delay.inertialDelaySensitive[1].y" ~ var"dFFREGSRH.delay.y[1]"
var"dFFREGSRH.delay.x[2]" ~ var"dFFREGSRH.delay.inertialDelaySensitive[2].x"
var"dFFREGSRH.delay.inertialDelaySensitive[2].y" ~ var"dFFREGSRH.delay.y[2]"
var"dFFREGSRH.dFFSR.dataOut[1]" ~ var"dFFREGSRH.delay.x[1]"
var"dFFREGSRH.dFFSR.dataOut[2]" ~ var"dFFREGSRH.delay.x[2]"
var"dFFREGSRH.set" ~ var"dFFREGSRH.dFFSR.set"
var"dFFREGSRH.reset" ~ var"dFFREGSRH.dFFSR.reset"
var"dFFREGSRH.clock" ~ var"dFFREGSRH.dFFSR.clock"
var"dFFREGSRH.dataIn[1]" ~ var"dFFREGSRH.dFFSR.dataIn[1]"
var"dFFREGSRH.dataIn[2]" ~ var"dFFREGSRH.dFFSR.dataIn[2]"
var"dFFREGSRH.delay.y[1]" ~ var"dFFREGSRH.dataOut[1]"
var"dFFREGSRH.delay.y[2]" ~ var"dFFREGSRH.dataOut[2]"
var"clock.y" ~ var"dFFREGSRH.clock"
var"set.y" ~ var"dFFREGSRH.set"
var"reset.y" ~ var"dFFREGSRH.reset"
var"data_0.y" ~ var"dFFREGSRH.dataIn[1]"
var"data_1.y" ~ var"dFFREGSRH.dataIn[2]"

Stacktrace:
  [1] error(s::String)
    @ Base ./error.jl:44
  [2] check_no_parameter_equations(sys::ModelingToolkitBase.System)
    @ ModelingToolkitBase ~/.julia/packages/ModelingToolkitBase/Sq573/src/utils.jl:363
  [3] ModelingToolkitTearing.TearingState(sys::ModelingToolkitBase.System, source_info::ModelingToolkitBase.EquationSourceInformation; check::Bool, sort_eqs::Bool)
    @ ModelingToolkitTearing ~/.julia/packages/ModelingToolkitTearing/0IZQo/src/tearingstate.jl:132
  [4] TearingState
    @ ~/.julia/packages/ModelingToolkitTearing/0IZQo/src/tearingstate.jl:121 [inlined]
  [5] __mtkcompile(sys::ModelingToolkitBase.System; inputs::OrderedCollections.OrderedSet{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, outputs::OrderedCollections.OrderedSet{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, disturbance_inputs::OrderedCollections.OrderedSet{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, sort_eqs::Bool, kwargs::@Kwargs{additional_passes::Tuple{}})
    @ ModelingToolkit ~/.julia/packages/ModelingToolkit/bx5sR/src/systems/systems.jl:33
  [6] _mtkcompile(sys::ModelingToolkitBase.System; kwargs::@Kwargs{inputs::OrderedCollections.OrderedSet{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, outputs::OrderedCollections.OrderedSet{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, disturbance_inputs::OrderedCollections.OrderedSet{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, additional_passes::Tuple{}})
    @ ModelingToolkitBase ~/.julia/packages/ModelingToolkitBase/Sq573/src/systems/systems.jl:0
  [7] _mtkcompile
    @ ~/.julia/packages/ModelingToolkitBase/Sq573/src/systems/systems.jl:122 [inlined]
  [8] mtkcompile(sys::ModelingToolkitBase.System; additional_passes::Tuple{}, inputs::Vector{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, outputs::Vector{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, disturbance_inputs::Vector{SymbolicUtils.BasicSymbolicImpl.var"typeof(BasicSymbolicImpl)"{SymbolicUtils.SymReal}}, split::Bool, kwargs::@Kwargs{})
    @ ModelingToolkitBase ~/.julia/packages/ModelingToolkitBase/Sq573/src/systems/systems.jl:95
  [9] mtkcompile
    @ ~/.julia/packages/ModelingToolkitBase/Sq573/src/systems/systems.jl:84 [inlined]
 [10] eval_AST(model::BaseModelica.BaseModelicaModel)
    @ BaseModelica ~/.julia/packages/BaseModelica/NmPPa/src/evaluator.jl:818
 [11] eval_AST(package::BaseModelica.BaseModelicaPackage)
    @ BaseModelica ~/.julia/packages/BaseModelica/NmPPa/src/evaluator.jl:838
 [12] baseModelica_to_ModelingToolkit
    @ ~/.julia/packages/BaseModelica/NmPPa/src/evaluator.jl:888 [inlined]
 [13] (::BaseModelicaLibraryTesting.var"#run_parse##10#run_parse##11")()
    @ BaseModelicaLibraryTesting ~/work/BaseModelicaLibraryTesting.jl/BaseModelicaLibraryTesting.jl/src/parse_bm.jl:78
 [14] with_logstate(f::BaseModelicaLibraryTesting.var"#run_parse##10#run_parse##11", logstate::Base.CoreLogging.LogState)
    @ Base.CoreLogging ./logging/logging.jl:542
 [15] (::BaseModelicaLibraryTesting.var"#run_parse##8#run_parse##9")()
    @ BaseModelicaLibraryTesting ~/work/BaseModelicaLibraryTesting.jl/BaseModelicaLibraryTesting.jl/src/parse_bm.jl:77
 [16] (::Base.RedirectStdStream)(thunk::BaseModelicaLibraryTesting.var"#run_parse##8#run_parse##9", stream::Pipe)
    @ Base ./stream.jl:1464
 [17] (::Base.RedirectStdStream)(thunk::BaseModelicaLibraryTesting.var"#run_parse##6#run_parse##7"{Pipe}, stream::Pipe)
    @ Base ./stream.jl:1457
 [18] run_parse(bm_path::String, model_dir::String, model::String)
    @ BaseModelicaLibraryTesting ~/work/BaseModelicaLibraryTesting.jl/BaseModelicaLibraryTesting.jl/src/parse_bm.jl:28
 [19] test_model(omc::OMJulia.OMCSession, model::String, results_root::String, ref_root::String; sim_settings::SimulateSettings, csv_max_size_mb::Int64)
    @ BaseModelicaLibraryTesting ~/work/BaseModelicaLibraryTesting.jl/BaseModelicaLibraryTesting.jl/src/pipeline.jl:82
 [20] test_model
    @ ~/work/BaseModelicaLibraryTesting.jl/BaseModelicaLibraryTesting.jl/src/pipeline.jl:60 [inlined]
 [21] main(; library::String, version::String, filter::String, omc_exe::String, results_root::String, ref_root::String, bm_options::String, sim_settings::SimulateSettings, csv_max_size_mb::Int64)
    @ BaseModelicaLibraryTesting ~/work/BaseModelicaLibraryTesting.jl/BaseModelicaLibraryTesting.jl/src/pipeline.jl:220
 [22] top-level scope
    @ none:7
 [23] eval(m::Module, e::Any)
    @ Core ./boot.jl:489
 [24] exec_options(opts::Base.JLOptions)
    @ Base ./client.jl:283
 [25] _start()
    @ Base ./client.jl:550