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mythril
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Security analysis tool for EVM bytecode. Supports smart contracts built for Ethereum, Hedera, Quorum, Vechain, Roostock, Tron and other EVM-compatible blockchains.
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mythril/tests/testdata/outputs_expected/underflow.sol.markdown

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# Analysis Results
## Integer Underflow
- Type: Warning
- Contract: Under
- Function name: `sendeth(address,uint256)`
- PC address: 649
### Description
A possible integer underflow exists in the function sendeth(address,uint256).
The substraction may result in a value < 0.
In *<TESTDATA>/inputs/underflow.sol:12*
```
balances[msg.sender] -= _value
```
## Integer Underflow
- Type: Warning
- Contract: Under
- Function name: `sendeth(address,uint256)`
- PC address: 567
### Description
A possible integer underflow exists in the function sendeth(address,uint256).
The substraction may result in a value < 0.
In *<TESTDATA>/inputs/underflow.sol:11*
```
balances[msg.sender] - _value
```