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For reasons I do not understand, the example
using ModelingToolkit @parameters A1 A2 B1 B2 # it fails with this line uncommented #@parameters A1 A2=1-A1 B1=A1 B2=A2 # it works with this line uncommented @variables t x1(t) x2(t) @named sys = ODESystem([ x1 ~ B1, x2 ~ B2, ], t; defaults = [ A2 => 1 - A1, B1 => A1, B2 => A2 ]) prob = ODEProblem(structural_simplify(sys), [], (0.0, 1.0), [A1 => 0.3])
mysteriously crashes with
ERROR: UndefRefError: access to undefined reference Stacktrace: [1] getindex @ ./essentials.jl:13 [inlined] [2] iterate @ ./array.jl:945 [inlined] [3] narrow_buffer_type(buffer::Vector{Real}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/parameter_buffer.jl:196 [4] _broadcast_getindex_evalf @ ./broadcast.jl:709 [inlined] [5] _broadcast_getindex @ ./broadcast.jl:682 [inlined] [6] #31 @ ./broadcast.jl:1118 [inlined] [7] ntuple @ ./ntuple.jl:48 [inlined] [8] copy @ ./broadcast.jl:1118 [inlined] [9] materialize(bc::Base.Broadcast.Broadcasted{…}) @ Base.Broadcast ./broadcast.jl:903 [10] ModelingToolkit.MTKParameters(sys::ODESystem, p::Dict{…}, u0::Vector{…}; tofloat::Bool, use_union::Bool) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/parameter_buffer.jl:159 [11] ModelingToolkit.MTKParameters(sys::ODESystem, p::Dict{SymbolicUtils.BasicSymbolic{Real}, Float64}, u0::Vector{Any}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/parameter_buffer.jl:16 [12] process_DEProblem(constructor::Type, sys::ODESystem, u0map::Vector{…}, parammap::Vector{…}; implicit_dae::Bool, du0map::Nothing, version::Nothing, tgrad::Bool, jac::Bool, checkbounds::Bool, sparse::Bool, simplify::Bool, linenumbers::Bool, parallel::Symbolics.SerialForm, eval_expression::Bool, use_union::Bool, tofloat::Bool, symbolic_u0::Bool, u0_constructor::typeof(identity), guesses::Dict{…}, t::Float64, warn_initialize_determined::Bool, build_initializeprob::Bool, initialization_eqs::Vector{…}, kwargs::@Kwargs{…}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:875 [13] process_DEProblem @ ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:766 [inlined] [14] (ODEProblem{…})(sys::ODESystem, u0map::Vector{…}, tspan::Tuple{…}, parammap::Vector{…}; callback::Nothing, check_length::Bool, warn_initialize_determined::Bool, kwargs::@Kwargs{}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:1018 [15] (ODEProblem{…})(sys::ODESystem, u0map::Vector{…}, tspan::Tuple{…}, parammap::Vector{…}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:1008 [16] (ODEProblem{true})(::ODESystem, ::Vector{Any}, ::Vararg{Any}; kwargs::@Kwargs{}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:995 [17] (ODEProblem{true})(::ODESystem, ::Vector{Any}, ::Vararg{Any}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:994 [18] ODEProblem(::ODESystem, ::Vector{Any}, ::Vararg{Any}; kwargs::@Kwargs{}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:984 [19] ODEProblem(::ODESystem, ::Vector{Any}, ::Vararg{Any}) @ ModelingToolkit ~/.julia/packages/ModelingToolkit/353ne/src/systems/diffeqs/abstractodesystem.jl:983 [20] top-level scope @ REPL[16]:1 Some type information was truncated. Use `show(err)` to see complete types.
This is with ] status
] status
[0c46a032] DifferentialEquations v7.13.0 [961ee093] ModelingToolkit v9.19.0 [1dea7af3] OrdinaryDiffEq v6.84.0 [2efcf032] SymbolicIndexingInterface v0.3.22 [d1185830] SymbolicUtils v2.0.2 [0c5d862f] Symbolics v5.30.3 ...
Is anyone able to reproduce this?
The text was updated successfully, but these errors were encountered:
AayushSabharwal
Successfully merging a pull request may close this issue.
For reasons I do not understand, the example
mysteriously crashes with
This is with
] status
Is anyone able to reproduce this?
The text was updated successfully, but these errors were encountered: