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/weak_random.sol.markdown

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# Analysis Results
## Dependence on predictable environment variable
- Type: Warning
- Contract: WeakRandom
- Function name: `_function_0xe9874106`
- PC address: 1285
### Description
In the function '_function_0xe9874106' the following predictable state variables are used to determine Ether recipient:
- block.coinbase
In *<TESTDATA>/inputs/weak_random.sol:47*
```
winningAddress.transfer(prize)
```
## Ether send
- Type: Warning
- Contract: WeakRandom
- Function name: `_function_0xe9874106`
- PC address: 1285
### Description
7 years ago
In the function '_function_0xe9874106' a non-zero amount of Ether is sent to an address taken from storage slot 0.
There is a check on storage index 0. This storage slot can be written to by calling the function 'fallback'.
7 years ago
There is a check on storage index 1. This storage slot can be written to by calling the function 'fallback'.
There is a check on storage index 1. This storage slot can be written to by calling the function 'fallback'.
In *<TESTDATA>/inputs/weak_random.sol:47*
```
winningAddress.transfer(prize)
```
## Exception state
- Type: Informational
- Contract: WeakRandom
- Function name: `fallback`
- PC address: 356
### Description
A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that assert() should only be used to check invariants. Use require() for regular input checking.
In *<TESTDATA>/inputs/weak_random.sol:11*
```
prize / totalTickets
```
## Exception state
- Type: Informational
- Contract: WeakRandom
- Function name: `_function_0xe9874106`
- PC address: 146
### Description
A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that assert() should only be used to check invariants. Use require() for regular input checking.
In *<TESTDATA>/inputs/weak_random.sol:11*
```
prize / totalTickets
```