==== Ether send ====
Type: Warning
Contract: Crowdfunding
Function name: withdrawfunds()
PC address: 816
In the function 'withdrawfunds()' a non-zero amount of Ether is sent to msg.sender.

There is a check on storage index 1. This storage slot can be written to by calling the function 'crowdfunding()'.
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In file: <TESTDATA>/inputs/ether_send.sol:18

msg.sender.transfer(this.balance)

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==== Integer Overflow  ====
Type: Warning
Contract: Crowdfunding
Function name: invest()
PC address: 483
A possible integer overflow exists in the function invest().
 Addition may result in a lower value.
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In file: <TESTDATA>/inputs/ether_send.sol:24

balances[msg.sender] += msg.value

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