Models like Modelica.Blocks.Examples.BusUsage and Modelica.Electrical.Analog.Examples.OpAmps.Subtracter don't have state variables. The used ODE solver Rodas5P doesn't limit the error on interpolations of algebraic variables.
Model: Modelica.Electrical.Analog.Examples.OpAmps.Subtracter
┌ Warning: Verbosity toggle: rosenbrock_no_differential_states
│ Rosenbrock methods on equations without differential states do not bound the error on interpolations.
└ @ OrdinaryDiffEqCore /home/runner/.julia/packages/OrdinaryDiffEqCore/zQTpZ/src/solve.jl:163
┌ Warning: Verbosity toggle: rosenbrock_no_differential_states
│ Rosenbrock methods on equations without differential states do not bound the error on interpolations.
└ @ OrdinaryDiffEqCore /home/runner/.julia/packages/OrdinaryDiffEqCore/zQTpZ/src/solve.jl:163
Add a backup solver like Rodas5Pr for these models. Detect that they need to be solved with a limit on the residuals to prevent simulation results like

Models like
Modelica.Blocks.Examples.BusUsageandModelica.Electrical.Analog.Examples.OpAmps.Subtracterdon't have state variables. The used ODE solverRodas5Pdoesn't limit the error on interpolations of algebraic variables.Add a backup solver like
Rodas5Prfor these models. Detect that they need to be solved with a limit on the residuals to prevent simulation results like