`Floating point exception (core dumped)` from `stim.Circuit.diagram("detslice-with-ops-svg",...)`

[oscarhiggott]

I get Floating point exception (core dumped) when using stim.Circuit.diagram("detslice-with-ops-svg", tick=range(circuit.num_ticks + 1, circuit.num_ticks + 10)).

The error occurs if "detslice-with-ops-svg" is used (but not with "detslice-svg"). The bug also only seems to happen if the ticks start at exactly circuit.num_ticks + 1 and if rows=None.

Example:

import stim

circuit = stim.Circuit.generated(
    "surface_code:rotated_memory_x",
    distance=3,
    rounds=3,
)


# Doesn't crash
dets_svg = circuit.diagram(
    "detslice-with-ops-svg",
    tick=range(circuit.num_ticks + 1, circuit.num_ticks + 10),
    rows=5,
)

# Doesn't crash
dets_svg = circuit.diagram(
    "detslice-with-ops-svg", tick=range(circuit.num_ticks, circuit.num_ticks + 10)
)

# Doesn't crash
dets_svg = circuit.diagram(
    "detslice-svg", tick=range(circuit.num_ticks + 1, circuit.num_ticks + 10)
)

# Crashes with: `Floating point exception (core dumped)`
dets_svg = circuit.diagram(
    "detslice-with-ops-svg", tick=range(circuit.num_ticks + 1, circuit.num_ticks + 10)
)