Autorouting Bug Report: Pipeline 7 traceSimplificationSolver timeout (>2h40m)

[AnasSarkiz]

Bug report

• View the supplied stage-16 artifacts
• Download the untouched stage-16 output ZIP
• Pipeline: 7
• Failing stage: traceSimplificationSolver
• Previous stage: highDensityStitchSolver

Reproduction

1. Run the routing case with Pipeline 7.
2. Continue through stage 16, highDensityStitchSolver.
3. Enter stage 17, traceSimplificationSolver.
4. Observe that trace simplification does not complete after more than 2 hours 40 minutes.

Current result

Stage	Solver stage	Time
11	Port-point pathing	3m 35s
13	High-density routing	27m 6s
14	High-density force improvement	21.7s
15	High-density repair	0.5ms
16	High-density stitching	734ms
17	Trace simplification	Over 2h 40m — stopped before completion

Expected result

traceSimplificationSolver should complete in a bounded, reasonable time or report which internal phase is preventing completion.

Artifact details

The ZIP is the untouched stage-16 export captured immediately before trace simplification. It contains the high-density stitching PNG, SVG, and GraphicsObject JSON.

The GraphicsObject contains:

• 62,441 points
• 62,036 lines
• 753 circles
• 0 rects

The supplied export is a stage visualization/handoff artifact, not a serialized TraceSimplificationSolver constructor payload. The original SimpleRouteJson, obstacle list, and connectivity map are not included.

Suggested investigation

Profile the trace-simplification subphases—via_removal, crossing_via_reduction, via_merging, and path_simplification—against the stage-16 geometry. The roughly 62k points and lines may expose poorly scaling work in one of these passes.