Top Cycle

Violation of Strategy Proofness

Profile type: ProfileWithTies
Config: 3 c, 3 v
Parameters: set_preference=optimist

Violation of Strategy-Proofness for Top Cycle under the optimist set preference.
A voter can benefit by changing their ranking from 1 ( 0  2 )  to 1 0 2 .

Original Profile:
+-----+-----+-----+
|  1  |  1  |  1  |
+-----+-----+-----+
|  1  |  2  | 0 2 |
| 0 2 | 0 1 |  1  |
|     |     |     |
+-----+-----+-----+
ProfileWithTies([{0: 1, 2: 1, 1: 0}, {0: 1, 1: 1, 2: 0}, {1: 1, 0: 0, 2: 0}], rcounts=[1, 1, 1], cmap={0: 0, 1: 1, 2: 2})

Top Cycle winner is {2}

New Profile:
+-----+-----+---+
|  1  |  1  | 1 |
+-----+-----+---+
|  2  | 0 2 | 1 |
| 0 1 |  1  | 0 |
|     |     | 2 |
+-----+-----+---+
ProfileWithTies([{0: 1, 1: 1, 2: 0}, {1: 1, 0: 0, 2: 0}, {2: 2, 0: 1, 1: 0}], rcounts=[1, 1, 1], cmap={0: '0', 1: '1', 2: '2'})

Top Cycle winners are {0, 1, 2}