FA-51656 / Raster clipping / Open access
Blit source destination clip: scissor right unclamped · case 01
The destination scissor right edge is not intersected with the target, allowing writes beyond the target width.
ROOT CAUSE
The destination scissor right edge is not intersected with the target, allowing writes beyond the target width.
VERIFIED REPAIR
Restore the specified clipping decision at scissor right unclamped. Each command is [sw,sh,sx,sy,w,h,dx,dy,clip]: a source image sw by sh, a requested source rectangle origin and size, a destination origin, and a half-open destination scissor [left,top,right,bottom) first intersected with the size by size target. Negative source origins trim width/height and shift the destination by the same amount; the source rectangle is limited to the image; destination pixels left/top of the scissor trim size and advance the source origin; right/bottom trims use half-open bounds. The result is [sx,sy,dx,dy,w,h] or None when either dimension is empty.
Unsuccessful approach: Clamping the scissor to the source width instead of the target width still permits out-of-target writes for wide sources.
Case contract
Each command is [sw,sh,sx,sy,w,h,dx,dy,clip]: a source image sw by sh, a requested source rectangle origin and size, a destination origin, and a half-open destination scissor [left,top,right,bottom) first intersected with the size by size target. Negative source origins trim width/height and shift the destination by the same amount; the source rectangle is limited to the image; destination pixels left/top of the scissor trim size and advance the source origin; right/bottom trims use half-open bounds. The result is [sx,sy,dx,dy,w,h] or None when either dimension is empty.
Why this case matters
Raster clipping decides which pixels a primitive may touch; a single wrong clip decision writes outside the target or scissor, or silently drops visible coverage.
1 / The failure
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(commands, size):
out=[]
for sw,sh,sx,sy,w,h,dx,dy,clip in commands:
cl,ct,cr,cb=max(clip[0],0),max(clip[1],0),clip[2],min(clip[3],size)
if sx<0:
w+=sx; dx-=sx; sx=0
if sy<0:
h+=sy; dy-=sy; sy=0
w=min(w,sw-sx)
h=min(h,sh-sy)
if dx<cl:
w-=cl-dx; sx+=cl-dx; dx=cl
if dy<ct:
h-=ct-dy; sy+=ct-dy; dy=ct
w=min(w,cr-dx)
h=min(h,cb-dy)
out.append([sx,sy,dx,dy,w,h] if w>0 and h>0 else None)
return out
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
if N == 1:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 6, 6]]], 6), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 6, 6]]], 6), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[9, 2, 0, 0, 9, 2, 0, 0, [0, 0, 10, 6]]], 6), [[0, 0, 0, 0, 6, 2]])
check('explicit case 4', solve([[6, 2, 0, 0, 6, 2, 0, 0, [0, 0, 3, 6]]], 6), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 4, 0, [0, 0, 6, 6]]], 6), [[0, 0, 4, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 6]]], 6), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 6, 6]]], 6), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 6, 6]]], 6), [[2, 0, 3, 0, 3, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[6, 6, 1, 1, 6, 6, -1, -1, [0, 0, 6, 6]]], 6), [[2, 2, 0, 0, 4, 4]])
if N == 2:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 7, 7]]], 7), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 7, 7]]], 7), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[10, 2, 0, 0, 10, 2, 0, 0, [0, 0, 11, 7]]], 7), [[0, 0, 0, 0, 7, 2]])
check('explicit case 4', solve([[7, 2, 0, 0, 7, 2, 0, 0, [0, 0, 3, 7]]], 7), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 5, 0, [0, 0, 7, 7]]], 7), [[0, 0, 5, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 7]]], 7), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 7, 7]]], 7), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 7, 7]]], 7), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[7, 7, 1, 1, 7, 7, -1, -1, [0, 0, 7, 7]]], 7), [[2, 2, 0, 0, 5, 5]])
if N == 3:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 8, 8]]], 8), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 8, 8]]], 8), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[11, 2, 0, 0, 11, 2, 0, 0, [0, 0, 12, 8]]], 8), [[0, 0, 0, 0, 8, 2]])
check('explicit case 4', solve([[8, 2, 0, 0, 8, 2, 0, 0, [0, 0, 3, 8]]], 8), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 6, 0, [0, 0, 8, 8]]], 8), [[0, 0, 6, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 8]]], 8), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 8, 8]]], 8), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 8, 8]]], 8), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[8, 8, 1, 1, 8, 8, -1, -1, [0, 0, 8, 8]]], 8), [[2, 2, 0, 0, 6, 6]])
if N == 4:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 9, 9]]], 9), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 9, 9]]], 9), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[12, 2, 0, 0, 12, 2, 0, 0, [0, 0, 13, 9]]], 9), [[0, 0, 0, 0, 9, 2]])
check('explicit case 4', solve([[9, 2, 0, 0, 9, 2, 0, 0, [0, 0, 3, 9]]], 9), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 7, 0, [0, 0, 9, 9]]], 9), [[0, 0, 7, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 9]]], 9), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 9, 9]]], 9), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 9, 9]]], 9), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[9, 9, 1, 1, 9, 9, -1, -1, [0, 0, 9, 9]]], 9), [[2, 2, 0, 0, 7, 7]])
if N == 5:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 10, 10]]], 10), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 10, 10]]], 10), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[13, 2, 0, 0, 13, 2, 0, 0, [0, 0, 14, 10]]], 10), [[0, 0, 0, 0, 10, 2]])
check('explicit case 4', solve([[10, 2, 0, 0, 10, 2, 0, 0, [0, 0, 3, 10]]], 10), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 8, 0, [0, 0, 10, 10]]], 10), [[0, 0, 8, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 10]]], 10), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 10, 10]]], 10), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 10, 10]]], 10), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[10, 10, 1, 1, 10, 10, -1, -1, [0, 0, 10, 10]]], 10), [[2, 2, 0, 0, 8, 8]])
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| explicit case 0 | [[0, 0, 1, 1, 4, 4]] | [[0, 0, 1, 1, 4, 4]] | Passed |
| explicit case 1 | [[0, 0, 2, 0, 2, 2]] | [[0, 0, 2, 0, 2, 2]] | Passed |
| explicit case 2 | [[2, 0, 0, 0, 3, 3]] | [[2, 0, 0, 0, 3, 3]] | Passed |
| explicit case 3 | [[0, 0, 0, 0, 9, 2]] | [[0, 0, 0, 0, 6, 2]] | Failed |
| explicit case 4 | [[0, 0, 0, 0, 3, 2]] | [[0, 0, 0, 0, 3, 2]] | Passed |
| explicit case 5 | [[0, 0, 4, 0, 2, 4]] | [[0, 0, 4, 0, 2, 4]] | Passed |
| explicit case 6 | [None] | [None] | Passed |
| explicit case 7 | [None] | [None] | Passed |
| explicit case 8 | [[2, 0, 3, 0, 3, 6]] | [[2, 0, 3, 0, 3, 6]] | Passed |
| explicit case 9 | [[0, 0, 0, 0, 6, 2]] | [[0, 0, 0, 0, 6, 2]] | Passed |
| explicit case 10 | [[0, 0, 0, 0, 2, 6]] | [[0, 0, 0, 0, 2, 6]] | Passed |
| explicit case 11 | [[2, 2, 0, 0, 4, 4]] | [[2, 2, 0, 0, 4, 4]] | Passed |
SHA-256 / 383063039aaff29bd9349c2e92775376be9d3d60a7c501985a497905ada92246
2 / The unsuccessful fix
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(commands, size):
out=[]
for sw,sh,sx,sy,w,h,dx,dy,clip in commands:
cl,ct,cr,cb=max(clip[0],0),max(clip[1],0),min(clip[2],sw),min(clip[3],size)
if sx<0:
w+=sx; dx-=sx; sx=0
if sy<0:
h+=sy; dy-=sy; sy=0
w=min(w,sw-sx)
h=min(h,sh-sy)
if dx<cl:
w-=cl-dx; sx+=cl-dx; dx=cl
if dy<ct:
h-=ct-dy; sy+=ct-dy; dy=ct
w=min(w,cr-dx)
h=min(h,cb-dy)
out.append([sx,sy,dx,dy,w,h] if w>0 and h>0 else None)
return out
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
if N == 1:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 6, 6]]], 6), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 6, 6]]], 6), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[9, 2, 0, 0, 9, 2, 0, 0, [0, 0, 10, 6]]], 6), [[0, 0, 0, 0, 6, 2]])
check('explicit case 4', solve([[6, 2, 0, 0, 6, 2, 0, 0, [0, 0, 3, 6]]], 6), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 4, 0, [0, 0, 6, 6]]], 6), [[0, 0, 4, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 6]]], 6), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 6, 6]]], 6), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 6, 6]]], 6), [[2, 0, 3, 0, 3, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[6, 6, 1, 1, 6, 6, -1, -1, [0, 0, 6, 6]]], 6), [[2, 2, 0, 0, 4, 4]])
if N == 2:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 7, 7]]], 7), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 7, 7]]], 7), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[10, 2, 0, 0, 10, 2, 0, 0, [0, 0, 11, 7]]], 7), [[0, 0, 0, 0, 7, 2]])
check('explicit case 4', solve([[7, 2, 0, 0, 7, 2, 0, 0, [0, 0, 3, 7]]], 7), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 5, 0, [0, 0, 7, 7]]], 7), [[0, 0, 5, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 7]]], 7), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 7, 7]]], 7), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 7, 7]]], 7), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[7, 7, 1, 1, 7, 7, -1, -1, [0, 0, 7, 7]]], 7), [[2, 2, 0, 0, 5, 5]])
if N == 3:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 8, 8]]], 8), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 8, 8]]], 8), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[11, 2, 0, 0, 11, 2, 0, 0, [0, 0, 12, 8]]], 8), [[0, 0, 0, 0, 8, 2]])
check('explicit case 4', solve([[8, 2, 0, 0, 8, 2, 0, 0, [0, 0, 3, 8]]], 8), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 6, 0, [0, 0, 8, 8]]], 8), [[0, 0, 6, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 8]]], 8), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 8, 8]]], 8), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 8, 8]]], 8), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[8, 8, 1, 1, 8, 8, -1, -1, [0, 0, 8, 8]]], 8), [[2, 2, 0, 0, 6, 6]])
if N == 4:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 9, 9]]], 9), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 9, 9]]], 9), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[12, 2, 0, 0, 12, 2, 0, 0, [0, 0, 13, 9]]], 9), [[0, 0, 0, 0, 9, 2]])
check('explicit case 4', solve([[9, 2, 0, 0, 9, 2, 0, 0, [0, 0, 3, 9]]], 9), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 7, 0, [0, 0, 9, 9]]], 9), [[0, 0, 7, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 9]]], 9), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 9, 9]]], 9), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 9, 9]]], 9), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[9, 9, 1, 1, 9, 9, -1, -1, [0, 0, 9, 9]]], 9), [[2, 2, 0, 0, 7, 7]])
if N == 5:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 10, 10]]], 10), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 10, 10]]], 10), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[13, 2, 0, 0, 13, 2, 0, 0, [0, 0, 14, 10]]], 10), [[0, 0, 0, 0, 10, 2]])
check('explicit case 4', solve([[10, 2, 0, 0, 10, 2, 0, 0, [0, 0, 3, 10]]], 10), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 8, 0, [0, 0, 10, 10]]], 10), [[0, 0, 8, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 10]]], 10), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 10, 10]]], 10), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 10, 10]]], 10), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[10, 10, 1, 1, 10, 10, -1, -1, [0, 0, 10, 10]]], 10), [[2, 2, 0, 0, 8, 8]])
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| explicit case 0 | [[0, 0, 1, 1, 3, 4]] | [[0, 0, 1, 1, 4, 4]] | Failed |
| explicit case 1 | [[0, 0, 2, 0, 2, 2]] | [[0, 0, 2, 0, 2, 2]] | Passed |
| explicit case 2 | [[2, 0, 0, 0, 3, 3]] | [[2, 0, 0, 0, 3, 3]] | Passed |
| explicit case 3 | [[0, 0, 0, 0, 9, 2]] | [[0, 0, 0, 0, 6, 2]] | Failed |
| explicit case 4 | [[0, 0, 0, 0, 3, 2]] | [[0, 0, 0, 0, 3, 2]] | Passed |
| explicit case 5 | [None] | [[0, 0, 4, 0, 2, 4]] | Failed |
| explicit case 6 | [None] | [None] | Passed |
| explicit case 7 | [None] | [None] | Passed |
| explicit case 8 | [[2, 0, 3, 0, 3, 6]] | [[2, 0, 3, 0, 3, 6]] | Passed |
| explicit case 9 | [[0, 0, 0, 0, 6, 2]] | [[0, 0, 0, 0, 6, 2]] | Passed |
| explicit case 10 | [[0, 0, 0, 0, 2, 6]] | [[0, 0, 0, 0, 2, 6]] | Passed |
| explicit case 11 | [[2, 2, 0, 0, 4, 4]] | [[2, 2, 0, 0, 4, 4]] | Passed |
SHA-256 / 474dde17b262d95afc15a79fa63620be0dd070d1af497481358adfcbae0d437e
3 / The verified repair
Exit 0"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(commands, size):
out=[]
for sw,sh,sx,sy,w,h,dx,dy,clip in commands:
cl,ct,cr,cb=max(clip[0],0),max(clip[1],0),min(clip[2],size),min(clip[3],size)
if sx<0:
w+=sx; dx-=sx; sx=0
if sy<0:
h+=sy; dy-=sy; sy=0
w=min(w,sw-sx)
h=min(h,sh-sy)
if dx<cl:
w-=cl-dx; sx+=cl-dx; dx=cl
if dy<ct:
h-=ct-dy; sy+=ct-dy; dy=ct
w=min(w,cr-dx)
h=min(h,cb-dy)
out.append([sx,sy,dx,dy,w,h] if w>0 and h>0 else None)
return out
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
if N == 1:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 6, 6]]], 6), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 6, 6]]], 6), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[9, 2, 0, 0, 9, 2, 0, 0, [0, 0, 10, 6]]], 6), [[0, 0, 0, 0, 6, 2]])
check('explicit case 4', solve([[6, 2, 0, 0, 6, 2, 0, 0, [0, 0, 3, 6]]], 6), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 4, 0, [0, 0, 6, 6]]], 6), [[0, 0, 4, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 6]]], 6), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 6, 6]]], 6), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 6, 6]]], 6), [[2, 0, 3, 0, 3, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 6, 6]]], 6), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[6, 6, 1, 1, 6, 6, -1, -1, [0, 0, 6, 6]]], 6), [[2, 2, 0, 0, 4, 4]])
if N == 2:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 7, 7]]], 7), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 7, 7]]], 7), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[10, 2, 0, 0, 10, 2, 0, 0, [0, 0, 11, 7]]], 7), [[0, 0, 0, 0, 7, 2]])
check('explicit case 4', solve([[7, 2, 0, 0, 7, 2, 0, 0, [0, 0, 3, 7]]], 7), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 5, 0, [0, 0, 7, 7]]], 7), [[0, 0, 5, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 7]]], 7), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 7, 7]]], 7), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 7, 7]]], 7), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 7, 7]]], 7), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[7, 7, 1, 1, 7, 7, -1, -1, [0, 0, 7, 7]]], 7), [[2, 2, 0, 0, 5, 5]])
if N == 3:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 8, 8]]], 8), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 8, 8]]], 8), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[11, 2, 0, 0, 11, 2, 0, 0, [0, 0, 12, 8]]], 8), [[0, 0, 0, 0, 8, 2]])
check('explicit case 4', solve([[8, 2, 0, 0, 8, 2, 0, 0, [0, 0, 3, 8]]], 8), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 6, 0, [0, 0, 8, 8]]], 8), [[0, 0, 6, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 8]]], 8), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 8, 8]]], 8), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 8, 8]]], 8), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 8, 8]]], 8), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[8, 8, 1, 1, 8, 8, -1, -1, [0, 0, 8, 8]]], 8), [[2, 2, 0, 0, 6, 6]])
if N == 4:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 9, 9]]], 9), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 9, 9]]], 9), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[12, 2, 0, 0, 12, 2, 0, 0, [0, 0, 13, 9]]], 9), [[0, 0, 0, 0, 9, 2]])
check('explicit case 4', solve([[9, 2, 0, 0, 9, 2, 0, 0, [0, 0, 3, 9]]], 9), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 7, 0, [0, 0, 9, 9]]], 9), [[0, 0, 7, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 9]]], 9), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 9, 9]]], 9), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 9, 9]]], 9), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 9, 9]]], 9), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[9, 9, 1, 1, 9, 9, -1, -1, [0, 0, 9, 9]]], 9), [[2, 2, 0, 0, 7, 7]])
if N == 5:
check('explicit case 0', solve([[4, 4, 0, 0, 4, 4, 1, 1, [0, 0, 10, 10]]], 10), [[0, 0, 1, 1, 4, 4]])
check('explicit case 1', solve([[4, 4, -2, 0, 4, 2, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 2, 0, 2, 2]])
check('explicit case 2', solve([[5, 3, 2, 0, 5, 3, 0, 0, [0, 0, 10, 10]]], 10), [[2, 0, 0, 0, 3, 3]])
check('explicit case 3', solve([[13, 2, 0, 0, 13, 2, 0, 0, [0, 0, 14, 10]]], 10), [[0, 0, 0, 0, 10, 2]])
check('explicit case 4', solve([[10, 2, 0, 0, 10, 2, 0, 0, [0, 0, 3, 10]]], 10), [[0, 0, 0, 0, 3, 2]])
check('explicit case 5', solve([[4, 4, 0, 0, 4, 4, 8, 0, [0, 0, 10, 10]]], 10), [[0, 0, 8, 0, 2, 4]])
check('explicit case 6', solve([[4, 4, 0, 0, 4, 4, 0, 0, [0, 0, 0, 10]]], 10), [None])
check('explicit case 7', solve([[4, 4, 0, 0, 4, 0, 0, 0, [0, 0, 10, 10]]], 10), [None])
check('explicit case 8', solve([[6, 6, 0, 0, 6, 6, 1, 0, [3, 0, 10, 10]]], 10), [[2, 0, 3, 0, 4, 6]])
check('explicit case 9', solve([[6, 2, 0, 0, 6, 6, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 0, 0, 6, 2]])
check('explicit case 10', solve([[2, 6, 0, 0, 6, 6, 0, 0, [0, 0, 10, 10]]], 10), [[0, 0, 0, 0, 2, 6]])
check('explicit case 11', solve([[10, 10, 1, 1, 10, 10, -1, -1, [0, 0, 10, 10]]], 10), [[2, 2, 0, 0, 8, 8]])
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| explicit case 0 | [[0, 0, 1, 1, 4, 4]] | [[0, 0, 1, 1, 4, 4]] | Passed |
| explicit case 1 | [[0, 0, 2, 0, 2, 2]] | [[0, 0, 2, 0, 2, 2]] | Passed |
| explicit case 2 | [[2, 0, 0, 0, 3, 3]] | [[2, 0, 0, 0, 3, 3]] | Passed |
| explicit case 3 | [[0, 0, 0, 0, 6, 2]] | [[0, 0, 0, 0, 6, 2]] | Passed |
| explicit case 4 | [[0, 0, 0, 0, 3, 2]] | [[0, 0, 0, 0, 3, 2]] | Passed |
| explicit case 5 | [[0, 0, 4, 0, 2, 4]] | [[0, 0, 4, 0, 2, 4]] | Passed |
| explicit case 6 | [None] | [None] | Passed |
| explicit case 7 | [None] | [None] | Passed |
| explicit case 8 | [[2, 0, 3, 0, 3, 6]] | [[2, 0, 3, 0, 3, 6]] | Passed |
| explicit case 9 | [[0, 0, 0, 0, 6, 2]] | [[0, 0, 0, 0, 6, 2]] | Passed |
| explicit case 10 | [[0, 0, 0, 0, 2, 6]] | [[0, 0, 0, 0, 2, 6]] | Passed |
| explicit case 11 | [[2, 2, 0, 0, 4, 4]] | [[2, 2, 0, 0, 4, 4]] | Passed |
SHA-256 / b3d4aa04d3bb498f415dc4837ccbfd804d6e5de09034cbca24858bfa447dac6d
Verification & scope
Exact integer/rational arithmetic on small stipulated fixtures models the clipping decision only; no memory layout, GPU pipeline, graphics API or standards conformance is claimed. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.
Observations recorded using Python 3.12.14 at 2026-09-29T14:45:21.036588+00:00.
Case digest / 9d413dd35cb6b8dca46bef7fad0b1228bedd7a5cb1ea3fc9d110a308f2caed4f