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Specification arr2bitlist
enrich contains
 with
   functions 
      getbooleanarray : reference × store → bitlist;
      getbooleanarray : reference × int × int × store → bitlist;
      comment: getintarray(r, offset, length, st);
       
      booleanvalues : javavalues → bitlist;
   predicates 
      issorted : bitlist;
       . < . : bool × bool;
   variables 
      bv, bv0 : bool; 
   
   axioms 
      booleanvalues-empty :  ⊦ booleanvalues([]) = [];
      used for : s, ls;
       
      booleanvalues-rec :  ⊦ booleanvalues(val ' + vals) = val .boolval + booleanvalues(vals);
      used for : s, ls;
       
      getbooleanarray-def :  ⊦ getbooleanarray(r, st) = getbooleanarray(r, 0, st[r -- _length] .intval, st);
      used for : s, ls;
       
      getbooleanarray :  ⊦ getbooleanarray(r, i, j, st) = booleanvalues(getarray(r, i, j, st));
      used for : s, ls;
       
      bool-less :  ⊦ bv < bv0 ↔ ¬ ¬ (¬ bv ∧ bv0);
      used for : s, ls;
       
      issorted-le-all-def :  ⊦ issorted(bits) ↔ (∀ m, n. m ≤ n ∧ n < # bits → ¬ bits[n] < bits[m]);
      used for : s, ls;
       
end enrich