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| Report: | General Info | Constrained Elements |
| General Info | |
| Name | Branch_validity |
| Expression | inv: (branch_number = Void and branch_version = Void ) xor (branch_number <> Void and branch_version <> Void ) |
| Base Classes | Class |
| Constrained Elements | |
| Name | Type |
| VERSION_TREE_ID | Class |