PhylogenyMethods.preOrderReId( p_c );
final PhylogenyNode p_c_1 = PhylogenyMethods.calculateLCAonTreeWithIdsInPreOrder( p_c.getNode( "b" ),
p_c.getNode( "a" ) );
PhylogenyMethods.preOrderReId( p_c );
final PhylogenyNode p_c_1 = PhylogenyMethods.calculateLCAonTreeWithIdsInPreOrder( p_c.getNode( "b" ),
p_c.getNode( "a" ) );