The verify report is stored in your repository at \repository\sa\domsinfo\maintenancedata\out\DOMAIN\PROJECT and is named QCverifyReport_DOMAIN_PROJECT_12345.html. It contains the items that the verify/repair could not fix. It should look like this:
Problems that require Manual Repair
# Type Problem Element Comment
1 table extra TTBLCL_176159_TC
2 table extra TTBLCL_163209_DS
This will tell you what you need to enter on the SchemaExceptions.xml. Search in help for how to do that.
You mentioned before about an extra index. That will be listed in the verify report. You need the name of the index to enter into the SchemaExceptions.