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The new current solution has an insulation value inferior to the two values previously obtained, as a result of executing a move with a negative move value. The tabu data structure now indicates that 3 moves are classified tabu, with different remaining tabu tenures. At the top of the candidate list, we fmd the swap of modules 4 and 5, which in effect represents the reversal of the fIrst move perfonI1ed, and is classified tabu. However, perfonI1ing this move produces a solution with an objective function value that is superior to any previous insulation value. Therefore, we make use of the aspiration criterion to override the tabu classification of this move and select it as the best on this iteration.
