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# TSAdaptSetSafety
Set safety factors for time step adaptor 
## Synopsis
```
#include "petscts.h" 
PetscErrorCode TSAdaptSetSafety(TSAdapt adapt, PetscReal safety, PetscReal reject_safety)
```
Logically Collective


## Input Parameters

- ***adapt -*** adaptive controller context
- ***safety -*** safety factor relative to target error/stability goal
- ***reject_safety -*** extra safety factor to apply if the last step was rejected



## Options Database Keys

- ***-ts_adapt_safety <safety> -*** to set safety factor
- ***-ts_adapt_reject_safety <reject_safety> -*** to set reject safety factor





## See Also
 [](ch_ts), `TSAdapt`, `TSAdaptGetSafety()`, `TSAdaptChoose()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ts/adapt/interface/tsadapt.c.html#TSAdaptSetSafety">src/ts/adapt/interface/tsadapt.c</A>


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