Simulating above the root breaks smc models #2405

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LibraryError                              Traceback (most recent call last)
Cell In[60], line 1
----> 1 ts = msprime.sim_ancestry(
      2     10,
      3     #population_size=10,
      4     stop_at_local_mrca=False,
      5     end_time=1000,
      6     random_seed=1,
      7     sequence_length=10,
      8     recombination_rate=0.01,
      9     model=msprime.SmcKApproxCoalescent()
     10     #model=msprime.SmcApproxCoalescent()
     11     #model=msprime.BetaCoalescent(alpha=1.2)
     12     #model='dtwf'
     13 )
     14 ts.draw_svg(y_axis=True)

File ~/Documents/msprime/msprime/ancestry.py:1332, in sim_ancestry(samples, demography, sequence_length, discrete_genome, recombination_rate, gene_conversion_rate, gene_conversion_tract_length, population_size, ploidy, model, initial_state, start_time, end_time, record_migrations, record_full_arg, additional_nodes, coalescing_segments_only, num_labels, random_seed, num_replicates, replicate_index, record_provenance, stop_at_local_mrca)
   1309     provenance_dict = provenance.get_provenance_dict(parameters)
   1310 sim = _parse_sim_ancestry(
   1311     samples=samples,
   1312     sequence_length=sequence_length,
   (...)   1330     stop_at_local_mrca=stop_at_local_mrca,
   1331 )
-> 1332 return _wrap_replicates(
   1333     sim,
   1334     num_replicates=num_replicates,
   1335     replicate_index=replicate_index,
   1336     provenance_dict=provenance_dict,
   1337 )

File ~/Documents/msprime/msprime/ancestry.py:681, in _wrap_replicates(simulator, num_replicates, replicate_index, provenance_dict, mutation_rate)
    675 iterator = simulator.run_replicates(
    676     num_replicates,
    677     mutation_rate=mutation_rate,
    678     provenance_dict=provenance_dict,
    679 )
    680 if replicate_index is not None:
--> 681     deque = collections.deque(iterator, maxlen=1)
    682     return deque.pop()
    683 else:

File ~/Documents/msprime/msprime/ancestry.py:1629, in Simulator.run_replicates(self, num_replicates, mutation_rate, provenance_dict)
   1627 for replicate_index in range(num_replicates):
   1628     logger.info("Starting replicate %d", replicate_index)
-> 1629     self.run()
   1630     if mutation_rate is not None:
   1631         # This is only called from simulate() or the ms interface,
   1632         # so does not need any further parameters.
   1633         mutations._simple_mutate(
   1634             tables=self.tables,
   1635             random_generator=self.random_generator,
   1636             sequence_length=self.sequence_length,
   1637             rate=mutation_rate,
   1638         )

File ~/Documents/msprime/msprime/ancestry.py:1594, in Simulator.run(self, event_chunk, debug_func)
   1592     raise ValueError("Model durations must be >= 0")
   1593 end_time = min(self.time + model_duration, self.end_time)
-> 1594 exit_reason = self._run_until(end_time, event_chunk, debug_func)
   1595 if exit_reason == ExitReason.COALESCENCE or self.time == self.end_time:
   1596     logger.debug("Skipping remaining %d models", len(self.models) - j - 1)

File ~/Documents/msprime/msprime/ancestry.py:1559, in Simulator._run_until(self, end_time, event_chunk, debug_func)
   1557 ret = ExitReason.MAX_EVENTS
   1558 while ret == ExitReason.MAX_EVENTS:
-> 1559     ret = ExitReason(super().run(end_time, event_chunk))
   1560     if self.time > end_time:
   1561         # Currently the Pedigree and Sweeps models are "non-reentrant"
   1562         # We can change this to an assertion once these have been fixed.
   1563         raise RuntimeError(
   1564             f"Model {self.model['name']} does not support interruption. "
   1565             "Please open an issue on GitHub"
   1566         )

LibraryError: Infinite waiting time until next simulation event.