CVXPY
Maximize
  x
Subject To
 71: x + y <= 1.0
 75: y == 0.0
Bounds
 x free
 y free
End
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AFTER COMPILATION
Minimize
  - x_0
Subject To
 R0: x_1 = 0
 R1: x_0 + x_1 <= 1
Bounds
 x_0 free
 x_1 free
End
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GUROBI
Maximize
  x
Subject To
 71: x + y <= 1
 75: y = 0
Bounds
 x free
 y free
End