I am trying to remove memory leaks using Instruments. Here is what I see.

When I click on that getHttpPOSTResultForVariables method highlighted in red, I see this

Can you please tell me, what exactly the second snapshot means.
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mov r3, r5 means it moves an object from register 3 to register 5.
The red line means this is where the leak happens.
Which probably means that while moving the object from one register to the other the object in register 3 isn’t cleaned up properly and thus gives a leak since you have now 2 registers with the same object without a direct reference to it.
What does this mean for your code? I’m not sure but I would look into the function that you use there.
Hope this help. Good luck