CVXPY
Minimize
  abs(x) + abs(y)
Subject To
Bounds
 x free
 y free
End
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AFTER COMPILATION
Minimize
 Obj: +1 x_0 +1 x_1
Subject to
 c1: -1 x_0 +1 x_2 <= +0
 c2: -1 x_0 -1 x_2 <= +0
 c3: -1 x_1 +1 x_3 <= +0
 c4: -1 x_1 -1 x_3 <= +0
Bounds
 x_0 free
 x_1 free
 x_2 free
 x_3 free
End
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SCIP
Minimize
 Obj: +1 x3
Subject to
\   [nonlinear] <c1>: abs((<x>))+abs((<y>))+<x3>*(-1) <= 0;
Bounds
 x free
 y free
 x3 free
End