# Phase A diff report

**This report is the output of Phase A's diff harness. Divergences
shown here are INPUT for Phase B (first-divergence localization),
not findings of Phase A.** Phase A's job is to make the harness
itself correct, not to analyze what it surfaces.

## Summary

| canary_tid | ours_tid | matched | canary_total | ours_total | first_divergence_at |
|---|---|---|---|---|---|
| 6 | 1 | 113 | 329948 | 93048 | 113 |

## canary_tid=6 → ours_tid=1

First divergence at `tid_event_idx=113`: payload.return_value: canary=0 ours=1880095840

**Pre-context (last 5 matching events):**
```
  canary: [108] import.call RtlLeaveCriticalSection
  ours:   [108] import.call RtlLeaveCriticalSection
  canary: [109] kernel.call RtlLeaveCriticalSection
  ours:   [109] kernel.call RtlLeaveCriticalSection
  canary: [110] kernel.return RtlLeaveCriticalSection
  ours:   [110] kernel.return RtlLeaveCriticalSection
  canary: [111] import.call KeQuerySystemTime
  ours:   [111] import.call KeQuerySystemTime
  canary: [112] kernel.call KeQuerySystemTime
  ours:   [112] kernel.call KeQuerySystemTime
```

**Divergent event:**
```
  canary: [113] kernel.return KeQuerySystemTime
  ours:   [113] kernel.return KeQuerySystemTime
```

**Next event after the divergence (if any):**
```
  canary: [114] import.call RtlInitializeCriticalSection
  ours:   [114] import.call RtlInitializeCriticalSection
```

**Raw events (JSON):**
```json
{"deterministic": true, "engine": "canary", "guest_cycle": 0, "host_ns": 17344300, "kind": "kernel.return", "payload": {"name": "KeQuerySystemTime", "return_value": 0, "side_effects": [], "status": "0x00000000"}, "schema_version": 1, "tid": 6, "tid_event_idx": 113}
{"deterministic": true, "engine": "ours", "guest_cycle": 9415, "host_ns": 73190351, "kind": "kernel.return", "payload": {"name": "KeQuerySystemTime", "return_value": 1880095840, "side_effects": [], "status": "0x700ffc60"}, "schema_version": 1, "tid": 1, "tid_event_idx": 113}
```