Try to change
<useSuppliedShifts>false</useSuppliedShifts>
to
<useSuppliedRangeShift>false</useSuppliedRangeShift>
<useSuppliedAzimuthShift>false</useSuppliedAzimuthShift>
in coreg_ifg_computation.xml file
This option is changed to two attributes in range and azimute for snap V.7