mace log showing different measure intersection

Hi,

Recently I noticed the below things happening in my system when I'm running a mace command and try to see the generated log information for the mace command.

mace -d $RDF_DOMAIN -run -expression "a=b"

a intx --> str_itpt

b intx --> day_str_itpt

mace log shows below

.................

<P 2017Dec20 15:57:17.257>

<P 2017Dec20 15:57:17.257> =========================================================

<P 2017Dec20 15:57:17.257> TSI:1          0.000107      seconds for Expression::evalPostProcess

<P 2017Dec20 15:57:17.257> =========================================================

<P 2017Dec20 15:57:17.257>

<P 2017Dec20 15:57:17.257> =========================================================

<P 2017Dec20 15:57:17.257> TSI:0          0.002331      seconds for Expression::eval

<P 2017Dec20 15:57:17.257> =========================================================

<D 2017Dec20 15:57:17.257> LHS Measure Info

<D 2017Dec20 15:57:17.258>   measure:       a

<D 2017Dec20 15:57:17.258>   popcount:      0

<D 2017Dec20 15:57:17.258>   nobcount:      455032

<D 2017Dec20 15:57:17.258>   baseint:       str_itpt

<D 2017Dec20 15:57:17.258>   navalue:       0