"DriCore" flooring system
Water vapor will travel through concrete and condense on cold surfaces. You can add a number of zero perm products to the concrete to keep the vapor from coming through.
Check your attic, many times when there is excessive drive from a basement slab the moisture will condense on the underside of the roof sheathing, (the first cold surface the vapor encounters)
In any case, try this. Pick a dry place on your basement floor. this spot should be free of cracks. Tape a 24" square of clear plastic over the spot. Make sure the edges are sealed tight. Wait 24-48 hours and see if water accumulates on the underside of the plastic. If it does, You need to seal the floor.
Hope this helps