Weird, it starts when viewing the link, but after reset and run it fails out as it should.
I have no clue what this is supposed to do but what the simulator is (or isn't) doing is trying to drive a zero-ohm voltage source, through a diode, into a zero-ohm voltage source (op-amp output). This will not happen in the real world as op-amps do not deliver kiloamperes.
As far as accuracy of the simulator goes, it's pretty good for what it is, the above notwithstanding. The only error I see here is a modeling error, or ignorance of what the models provided are. The amps certainly shouldn't be labeled "TS912" when they behave wholly unlike any such part.
Tim