How Software Refactoring Impacts Execution Time. - TRAINI, LUCA; DIPOMPEO, DANIELE; TUCCI, MICHELE; BIN LIN; SCALABRINO, SIMONE; BAVOTA, GABRIELE; LANZA, MICHELE; OLIVETO, ROCCO; CORTELLESSA, VITTORIO (ACM Transactions on Software Engineering & Methodology, 2022)