smt - Getting symbolic values of bit vectors in Z3 -

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I want to use Z3 for reasoning from a few vectors. Along with a satisfactory decision, I also want to symbolically represent the bit vectors so that I can apply their own computations to them as per need. For example:

Come,

  1. X [3: 0], Y [3: 0], Z [4: 0] is declared a bit vector
  2. Print X [3: 0]
  3. X [3: 0] without launching any value < - X [3: 0]> gt; & Gt; 1 [logical change]
  4. Print X [3: 0]
  5. Z [4: 0]
  6. Print Z [4: 0]
  7. .......

    desired output (something symbolic like this): 

      & gt; 2. [x3 x2x1x0] & gt; 4. [0 x3 x2 x1] & gt; 6. [s4 s3 s2 s1 s0]   
     Is it possible to use Z3? Generally, this is not possible after the simplification of the formula, Z3 is a bit-blaster (boolean).  
     
     
     Translates into variables and runs a set solver, which usually assigns an assignment to all boolean variables (and thus, after translation, in the bit-vector variable).  
     Strategy that Z3 has given employment for QFVVV formulas. For some (simple) formulas, in your case bit may be enough to remove the formula after bit-blasting; It describes how to prepare and implement such strategies.

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