Add checks on max_stmts and evidence.
Add checks on max_stmts and evidence.

pvtodorov/indra,sorgerlab/indra,bgyori/indra,sorgerlab/belpy,johnbachman/belpy,johnbachman/belpy,johnbachman/indra,sorgerlab/indra,johnbachman/indra,pvtodorov/indra,sorgerlab/belpy,pvtodorov/indra,sorgerlab/indra,johnbachman/belpy,bgyori/indra,johnbachman/indra,pvtodorov/indra,bgyori/indra,sorgerlab/belpy