CVXPY
Maximize
  Sum(X, None, False)
Subject To
 6: maximum(X, [[1.00 -2.00]
 [3.00 4.00]]) <= 4.0
Bounds
 X free
End
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AFTER COMPILATION
Minimize
 Obj: -1 x_0 -1 x_1 -1 x_2 -1 x_3
Subject to
 c1: +1 x_0 -1 x_4 <= +0
 c2: +1 x_1 -1 x_5 <= +0
 c3: +1 x_2 -1 x_6 <= +0
 c4: +1 x_3 -1 x_7 <= +0
 c5: -1 x_4 <= -1
 c6: -1 x_5 <= -3
 c7: -1 x_6 <= +2
 c8: -1 x_7 <= -4
 c9: +1 x_4 <= +4
 c10: +1 x_5 <= +4
 c11: +1 x_6 <= +4
 c12: +1 x_7 <= +4
Bounds
 x_0 free
 x_1 free
 x_2 free
 x_3 free
 x_4 free
 x_5 free
 x_6 free
 x_7 free
End
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SCIP
Maximize
 Obj: +1 X_0_0 +1 X_0_1 +1 X_1_0 +1 X_1_1
Subject to
 maximum_1_0_0_0: +1 maximum_1_0_0 -1 X_0_0 >= +0
 maximum_1_0_0_1: +1 maximum_1_0_1 -1 X_0_1 >= +0
 maximum_1_0_1_0: +1 maximum_1_1_0 -1 X_1_0 >= +0
 maximum_1_0_1_1: +1 maximum_1_1_1 -1 X_1_1 >= +0
 maximum_1_1_0_0: +1 maximum_1_0_0 >= +1
 maximum_1_1_0_1: +1 maximum_1_0_1 >= -2
 maximum_1_1_1_0: +1 maximum_1_1_0 >= +3
 maximum_1_1_1_1: +1 maximum_1_1_1 >= +4
 6_0_0: +1 maximum_1_0_0 <= +4
 6_0_1: +1 maximum_1_0_1 <= +4
 6_1_0: +1 maximum_1_1_0 <= +4
 6_1_1: +1 maximum_1_1_1 <= +4
Bounds
 X_0_0 free
 X_0_1 free
 X_1_0 free
 X_1_1 free
 maximum_1_0_0 free
 maximum_1_0_1 free
 maximum_1_1_0 free
 maximum_1_1_1 free
End