VERIFICATION:- FAILED

Concrete playback
```
#[test]
fn kani_concrete_playback_harness
    let concrete_vals: Vec<Vec<u8>> = vec![
        // 255
        vec![255]
    ];
    kani::concrete_playback_run(concrete_vals, harness);
}
```

VERIFICATION:- FAILED

Concrete playback
```
#[test]
fn kani_concrete_playback_harness
    let concrete_vals: Vec<Vec<u8>> = vec![
        // 0
        vec![0]
    ];
    kani::concrete_playback_run(concrete_vals, harness);
}
```