{
  "device": "Galaxy S26 SM-S942Q, Android 16",
  "runtime": "LiteRT 2.2.0 CompiledModel GPU OpenCL",
  "precision": "FP32 serialized value 2",
  "runtime_libraries": {
    "libLiteRt.so": {
      "bytes": 5508376,
      "sha256": "97355a36cb8ac7628cf407773291e98da79f3ef184cc43cb0e57dedf5f0c0637"
    },
    "libLiteRtClGlAccelerator.so": {
      "bytes": 3105544,
      "sha256": "7c63d606a48e9479499c012f6732623f9e6fc26250c5bdf6724af205d73eb0fb"
    }
  },
  "synthetic_chains": [
    {
      "requested_ops": 4000,
      "actual_operator_count": 4000,
      "artifact_bytes": 560448,
      "parameter_count": 0,
      "constant_tensor_payload_bytes": 8,
      "device": {
        "status": "FAIL",
        "compile_succeeded": false,
        "failure_class": "RETURNED_LITERT_COMPILE_ERROR",
        "returncode": 1,
        "compile_status": 3,
        "compile_wall_ms": 53293.459875,
        "selected_operators": 4000,
        "compiled_operators": null,
        "total_operators": 4000,
        "partitions": 1,
        "fully_accelerated": null,
        "compile_peak_rss_bytes": 351272960,
        "peak_rss_is_lower_bound": false,
        "post_compile_call_rss_bytes": 137625600,
        "exact_runtime_key_lines": [
          "VERBOSE: Replacing 4000 out of 4000 node(s) with delegate (LITERT_CL) node, yielding 1 partitions for subgraph 0 (main).",
          "E0000 00:00:1790392542.808681   23321 delegate_opencl.cc:340] Failed to create litert::ml_drift::DelegateKernelLiteRt: UNKNOWN: Failed to build program executable - Out of host memoryPass",
          "=== Source Location Trace: ===",
          "third_party/ml_drift/cl/cl_program.cc:79",
          "third_party/ml_drift/cl/cl_program.cc:223",
          "third_party/ml_drift/cl/cl_program.cc:235",
          "third_party/ml_drift/cl/program_cache.cc:103",
          "third_party/ml_drift/cl/inference_context.cc:238",
          "third_party/odml/litert/ml_drift/delegate/gpu_backend_opencl_litert.cc:328",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel.cc:890",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel.cc:915",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel.cc:335",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel_litert.cc:144",
          "ERROR: [error_reporter.cc:27] Failed to initialize kernel.",
          "ERROR: [error_reporter.cc:27] Restored original execution plan after delegate application failure.",
          "  \"error\": \"LiteRtCreateCompiledModel status=3\""
        ]
      }
    },
    {
      "requested_ops": 8000,
      "actual_operator_count": 8000,
      "artifact_bytes": 1120460,
      "parameter_count": 0,
      "constant_tensor_payload_bytes": 8,
      "device": {
        "status": "FAIL",
        "compile_succeeded": false,
        "failure_class": "RETURNED_LITERT_COMPILE_ERROR",
        "returncode": 1,
        "compile_status": 3,
        "compile_wall_ms": 443775.169883,
        "selected_operators": 8000,
        "compiled_operators": null,
        "total_operators": 8000,
        "partitions": 1,
        "fully_accelerated": null,
        "compile_peak_rss_bytes": 649371648,
        "peak_rss_is_lower_bound": false,
        "post_compile_call_rss_bytes": 460763136,
        "exact_runtime_key_lines": [
          "VERBOSE: Replacing 8000 out of 8000 node(s) with delegate (LITERT_CL) node, yielding 1 partitions for subgraph 0 (main).",
          "E0000 00:00:1790393045.836172   23439 delegate_opencl.cc:340] Failed to create litert::ml_drift::DelegateKernelLiteRt: UNKNOWN: Failed to build program executable - Out of host memoryPass",
          "=== Source Location Trace: === ",
          "third_party/ml_drift/cl/cl_program.cc:79",
          "third_party/ml_drift/cl/cl_program.cc:223",
          "third_party/ml_drift/cl/cl_program.cc:235",
          "third_party/ml_drift/cl/program_cache.cc:103",
          "third_party/ml_drift/cl/inference_context.cc:238",
          "third_party/odml/litert/ml_drift/delegate/gpu_backend_opencl_litert.cc:328",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel.cc:890",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel.cc:915",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel.cc:335",
          "third_party/odml/litert/ml_drift/delegate/delegate_kernel_litert.cc:144",
          "ERROR: [error_reporter.cc:27] Failed to initialize kernel.",
          "ERROR: [error_reporter.cc:27] Restored original execution plan after delegate application failure.",
          "  \"error\": \"LiteRtCreateCompiledModel status=3\""
        ]
      }
    }
  ],
  "synthetic_runtime_message": "Failed to build program executable - Out of host memoryPass",
  "universal_operator_count_threshold_established": false,
  "successful_full_s128_operators": 4149,
  "successful_encoder_s256_operators": 1773,
  "head_graph_failures": [
    {
      "operators": 12558,
      "result": "SIGSEGV",
      "returncode": 139
    },
    {
      "operators": 6286,
      "result": "SIGSEGV",
      "returncode": 139,
      "peak_rss_lower_bound_bytes": 2574508032
    },
    {
      "operators": 14086,
      "result": "SIGSEGV",
      "returncode": 139,
      "peak_rss_lower_bound_bytes": 570171392
    }
  ],
  "full_s256_failure": {
    "operators": 14341,
    "result": "SIGSEGV",
    "returncode": 139,
    "peak_rss_lower_bound_bytes": 6403559424
  },
  "interpretation": "Compilation failures depend on graph topology. The synthetic chain failures do not establish the cause of the BiLSTM crash or exhaustion of all device RAM.",
  "source_report_sha256": "91e382190711ea354f91fdc9d2353b27b5e78efcae6bb13e2db4665407c2a25a"
}