
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Let set $A = \{x | x^2 + 2x - 8 < 0\}$, and set $B = \{x | 5 - m < x < 2m - 1\}$. If $U = \mathbb{R}$, and $A \cap (\complement_U B) = A$, then the range of the real number $m$ is ______.

Present the answer in LaTex format: \boxed{Your answer}
user