Constraint parameters
| getactivebranch | 
     Gets the active branch of a disjunction
     | 
| getarity | 
     Returns the number of variables in the constraint
     | 
| getpriority | 
     Returns the priority of a constraint
     | 
| gettag | 
     Gets the tag of a constraint
     | 
| setfirstbranch | 
     Sets the first branch of a disjunction to be activated
     | 
| setpriority | 
     Sets the priority of a constraint
     | 
| settag | 
     Sets the tag of a constraint
     | 
 
