IDAKLU vs. Casadi Solver with Experiment class: IDAKLU giving false error

[ganmad]

Dear PyBaMM community,

I have tried a simple example with both IDAKLU and Casadi solvers, with version 23.3. While Casadi works well with Experiment class, IDAKLU is giving a false error described below.

Example:

import pybamm
model = pybamm.lithium_ion.DFN()
exp = pybamm.Experiment(["Discharge at 0.1C until 3.2V","Charge at 0.1C until 4.0V"]*2)
safe_solver = pybamm.CasadiSolver(mode="safe",)
sim = pybamm.Simulation(model,solver=idasolver,experiment=exp)
sim.solve()
sim.plot()

The simulation failed at the beginning of 2nd cycle with the following error for IDA:

2023-04-21 13:08:31.277 - [WARNING] callbacks.on_experiment_infeasible(233):

Experiment is infeasible: 'event: Maximum voltage' was triggered during 'Discharge at 0.1C until 3.2V'. The returned solution only contains up to step 1 of cycle 3. 

Interestingly, it worked fine with Casadi.

Can one of you please look at it and let me know how to address this?

Thanks.
Ganesh