SetDirectory["C:\\drorbn\\AcademicPensieve\\Projects\\FullDoPeGDO"];
<<Engine.m

log=ReadList["CCFLog.m"]

e=log[[-1,2]]

Timing[u=l2U[e]]

Timing[l=U2l[e]]

LeafCount/@{e,l,u}

LeafCount@e

LeafCount@Factor[e]

Timing@LeafCount[fu=Factor[u]]

Timing@LeafCount[fl=Factor[l]]

Timing@LeafCount[fe=Factor[e]]

Timing@LeafCount[re=ExpandNumerator@ExpandDenominator@Together[e]]

Timing@LeafCount[tu=Together[u]]

Timing@LeafCount[te=Together[e]]

Timing@LeafCount[re1=ExpandAll@Together[e]]

re1

re

te

fe

tu