void execute(std::vector< ttk::ftm::MergeTree< float > > &originsTrees, std::vector< ttk::ftm::MergeTree< float > > &originsPrimeTrees, std::vector< unsigned int * > &allRevNodeCorr, std::vector< unsigned int * > &allRevNodeCorrPrime, std::vector< unsigned int > &allRevNodeCorrSize, std::vector< unsigned int > &allRevNodeCorrPrimeSize)