CVXPY
Maximize
  Sum(X, None, False)
Subject To
Bounds
 [0. 1. 2. 3.] <= X[[ True  True], [ True  True]]
 X[[ True  True], [ True  True]] <= [1. 2. 3. 4.]
End
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AFTER COMPILATION
OBJECTIVE
  Sense            : minimize
VARIABLES
  [continuous] <x_0>: obj=-1, original bounds=[-inf,+inf]
  [continuous] <x_1>: obj=-1, original bounds=[-inf,+inf]
  [continuous] <x_2>: obj=-1, original bounds=[-inf,+inf]
  [continuous] <x_3>: obj=-1, original bounds=[-inf,+inf]
CONSTRAINTS
  [linear] <c1>:  -<x_0>[C] <= 0;
  [linear] <c2>:  -<x_2>[C] <= -1;
  [linear] <c3>:  -<x_1>[C] <= -2;
  [linear] <c4>:  -<x_3>[C] <= -3;
  [linear] <c5>: <x_0>[C] <= 1;
  [linear] <c6>: <x_2>[C] <= 2;
  [linear] <c7>: <x_1>[C] <= 3;
  [linear] <c8>: <x_3>[C] <= 4;
END
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SCIP
OBJECTIVE
  Sense            : maximize
VARIABLES
  [continuous] <X_0_0>: obj=1, original bounds=[0,1]
  [continuous] <X_0_1>: obj=1, original bounds=[1,2]
  [continuous] <X_1_0>: obj=1, original bounds=[2,3]
  [continuous] <X_1_1>: obj=1, original bounds=[3,4]
END