---
title: illegalInstructionTerminationCount
framework: metrickit
role: symbol
role_heading: Instance Property
path: metrickit/backgroundterminationmetric/illegalinstructionterminationcount
---

# illegalInstructionTerminationCount

The number of times the system terminated the app from the background for attempting to execute an illegal or undefined instruction.

## Declaration

```swift
let illegalInstructionTerminationCount: Int
```

## See Also

### Background termination counts

- [normalTerminationCount](metrickit/backgroundterminationmetric/normalterminationcount.md)
- [memoryLimitTerminationCount](metrickit/backgroundterminationmetric/memorylimitterminationcount.md)
- [highCPUTerminationCount](metrickit/backgroundterminationmetric/highcputerminationcount.md)
- [systemPressureTerminationCount](metrickit/backgroundterminationmetric/systempressureterminationcount.md)
- [badAccessTerminationCount](metrickit/backgroundterminationmetric/badaccessterminationcount.md)
- [abnormalTerminationCount](metrickit/backgroundterminationmetric/abnormalterminationcount.md)
- [watchdogTerminationCount](metrickit/backgroundterminationmetric/watchdogterminationcount.md)
- [fileLockTerminationCount](metrickit/backgroundterminationmetric/filelockterminationcount.md)
- [taskTimeoutTerminationCount](metrickit/backgroundterminationmetric/tasktimeoutterminationcount.md)