
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
In the Cartesian coordinate plane \( xOy \), the coordinates of point \( F \) are \((1,0)\), and points \( A \) and \( B \) lie on the parabola \( y^2 = 4x \). It is given that \( \overrightarrow{OA} \cdot \overrightarrow{OB} = -4 \) and \( |\overrightarrow{FA}| - |\overrightarrow{FB}| = 4\sqrt{3} \). Find the value of \( \overrightarrow{FA} \cdot \overrightarrow{FB} \).

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