Examples:
EXCHANGE_A (a), EXCHANGE_B (b), EXCHANGE_INFEAS (c)

(a) (b) (c)
Degrees of freedom 4 4 4
Feasible yes yes no
Nodes in search tree 68 103 49
Nodes in solution path22 21 -
Time for search 1.25s3.07s2.31s

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(a)
(b)
(c)