diff --git a/Microsoft.Z3/Context.cs b/Microsoft.Z3/Context.cs
index 597b9b7c6..27bbf6d42 100644
--- a/Microsoft.Z3/Context.cs
+++ b/Microsoft.Z3/Context.cs
@@ -50,7 +50,7 @@ namespace Microsoft.Z3
             Contract.Requires(settings != null);
 
             IntPtr cfg = Native.Z3_mk_config();
-            foreach(KeyValuePair<string,string> kv in settings)
+            foreach (KeyValuePair<string, string> kv in settings)
                 Native.Z3_set_param_value(cfg, kv.Key, kv.Value);
             m_ctx = Native.Z3_mk_context_rc(cfg);
             Native.Z3_del_config(cfg);
@@ -88,7 +88,7 @@ namespace Microsoft.Z3
         /// </summary>
         internal Symbol[] MkSymbols(string[] names)
         {
-            Contract.Ensures(names == null || Contract.Result<Symbol[]>() != null); 
+            Contract.Ensures(names == null || Contract.Result<Symbol[]>() != null);
             Contract.Ensures(names != null || Contract.Result<Symbol[]>() == null);
             Contract.Ensures(Contract.Result<Symbol[]>() == null || Contract.Result<Symbol[]>().Length == names.Length);
             Contract.Ensures(Contract.Result<Symbol[]>() == null || Contract.ForAll(Contract.Result<Symbol[]>(), s => s != null));
@@ -129,7 +129,7 @@ namespace Microsoft.Z3
                 if (m_intSort == null) m_intSort = new IntSort(this); return m_intSort;
             }
         }
-        
+
 
         /// <summary>
         /// Retrieves the Real sort of the context.
@@ -204,7 +204,7 @@ namespace Microsoft.Z3
             Contract.Requires(domain != null);
             Contract.Requires(range != null);
             Contract.Ensures(Contract.Result<ArraySort>() != null);
-            
+
             CheckContextMatch(domain);
             CheckContextMatch(range);
             return new ArraySort(this, domain, range);
@@ -392,9 +392,9 @@ namespace Microsoft.Z3
                 Contract.Assume(Contract.ForAll(constructor, arr => arr != null), "Clousot does not support yet quantified formula on multidimensional arrays");
                 CheckContextMatch(constructor);
                 cla[i] = new ConstructorList(this, constructor);
-                n_constr[i] = cla[i].NativeObject;                                               
+                n_constr[i] = cla[i].NativeObject;
             }
-            IntPtr[] n_res = new IntPtr[n];            
+            IntPtr[] n_res = new IntPtr[n];
             Native.Z3_mk_datatypes(nCtx, n, Symbol.ArrayToNative(names), n_res, n_constr);
             DatatypeSort[] res = new DatatypeSort[n];
             for (uint i = 0; i < n; i++)
@@ -526,7 +526,7 @@ namespace Microsoft.Z3
 
             CheckContextMatch(range);
             return new FuncDecl(this, MkSymbol(name), null, range);
-        }        
+        }
 
         /// <summary>
         /// Creates a fresh constant function declaration with a name prefixed with <paramref name="prefix"/>.
@@ -728,7 +728,7 @@ namespace Microsoft.Z3
             CheckContextMatch(f);
             CheckContextMatch(args);
             return Expr.Create(this, f, args);
-        }        
+        }
 
         #region Propositional
         /// <summary>
@@ -800,7 +800,7 @@ namespace Microsoft.Z3
             CheckContextMatch(a);
             return new BoolExpr(this, Native.Z3_mk_not(nCtx, a.NativeObject));
         }
-        
+
         /// <summary>    
         ///  Create an expression representing an if-then-else: <c>ite(t1, t2, t3)</c>.
         /// </summary>
@@ -895,7 +895,7 @@ namespace Microsoft.Z3
         /// </summary>    
         public ArithExpr MkAdd(params ArithExpr[] t)
         {
-            Contract.Requires(t != null); 
+            Contract.Requires(t != null);
             Contract.Requires(Contract.ForAll(t, a => a != null));
             Contract.Ensures(Contract.Result<ArithExpr>() != null);
 
@@ -1167,7 +1167,7 @@ namespace Microsoft.Z3
             Contract.Requires(t1 != null);
             Contract.Requires(t2 != null);
             Contract.Ensures(Contract.Result<BitVecExpr>() != null);
-            
+
             CheckContextMatch(t1);
             CheckContextMatch(t2);
             return new BitVecExpr(this, Native.Z3_mk_bvor(nCtx, t1.NativeObject, t2.NativeObject));
@@ -1634,8 +1634,8 @@ namespace Microsoft.Z3
         {
             Contract.Requires(t1 != null);
             Contract.Requires(t2 != null);
-            Contract.Ensures(Contract.Result<BitVecExpr>() != null);            
-            
+            Contract.Ensures(Contract.Result<BitVecExpr>() != null);
+
             CheckContextMatch(t1);
             CheckContextMatch(t2);
             return new BitVecExpr(this, Native.Z3_mk_bvshl(nCtx, t1.NativeObject, t2.NativeObject));
@@ -1658,7 +1658,7 @@ namespace Microsoft.Z3
             Contract.Requires(t1 != null);
             Contract.Requires(t2 != null);
             Contract.Ensures(Contract.Result<BitVecExpr>() != null);
-            
+
             CheckContextMatch(t1);
             CheckContextMatch(t2);
             return new BitVecExpr(this, Native.Z3_mk_bvlshr(nCtx, t1.NativeObject, t2.NativeObject));
@@ -1683,7 +1683,7 @@ namespace Microsoft.Z3
             Contract.Requires(t1 != null);
             Contract.Requires(t2 != null);
             Contract.Ensures(Contract.Result<BitVecExpr>() != null);
-            
+
             CheckContextMatch(t1);
             CheckContextMatch(t2);
             return new BitVecExpr(this, Native.Z3_mk_bvashr(nCtx, t1.NativeObject, t2.NativeObject));
@@ -1700,7 +1700,7 @@ namespace Microsoft.Z3
         {
             Contract.Requires(t != null);
             Contract.Ensures(Contract.Result<BitVecExpr>() != null);
-            
+
             CheckContextMatch(t);
             return new BitVecExpr(this, Native.Z3_mk_rotate_left(nCtx, i, t.NativeObject));
         }
@@ -2147,7 +2147,7 @@ namespace Microsoft.Z3
         {
             Contract.Requires(args != null);
             Contract.Requires(Contract.ForAll(args, a => a != null));
-            
+
             CheckContextMatch(args);
             return Expr.Create(this, Native.Z3_mk_set_union(nCtx, (uint)args.Length, AST.ArrayToNative(args)));
         }
@@ -2213,7 +2213,7 @@ namespace Microsoft.Z3
             Contract.Requires(arg1 != null);
             Contract.Requires(arg2 != null);
             Contract.Ensures(Contract.Result<Expr>() != null);
-            
+
             CheckContextMatch(arg1);
             CheckContextMatch(arg2);
             return Expr.Create(this, Native.Z3_mk_set_subset(nCtx, arg1.NativeObject, arg2.NativeObject));
@@ -2538,7 +2538,7 @@ namespace Microsoft.Z3
             Contract.Requires(Contract.ForAll(names, n => n != null));
             Contract.Requires(patterns == null || Contract.ForAll(patterns, p => p != null));
             Contract.Requires(noPatterns == null || Contract.ForAll(noPatterns, np => np != null));
-            
+
             Contract.Ensures(Contract.Result<Quantifier>() != null);
 
             return new Quantifier(this, true, sorts, names, body, weight, patterns, noPatterns, quantifierID, skolemID);
@@ -2607,7 +2607,7 @@ namespace Microsoft.Z3
             Contract.Requires(Contract.ForAll(names, n => n != null));
             Contract.Requires(patterns == null || Contract.ForAll(patterns, p => p != null));
             Contract.Requires(noPatterns == null || Contract.ForAll(noPatterns, np => np != null));
-            
+
             Contract.Ensures(Contract.Result<Quantifier>() != null);
 
             if (universal)
@@ -2626,7 +2626,7 @@ namespace Microsoft.Z3
             Contract.Requires(boundConstants == null || Contract.ForAll(boundConstants, n => n != null));
             Contract.Requires(patterns == null || Contract.ForAll(patterns, p => p != null));
             Contract.Requires(noPatterns == null || Contract.ForAll(noPatterns, np => np != null));
-            
+
             Contract.Ensures(Contract.Result<Quantifier>() != null);
 
             if (universal)
@@ -2702,10 +2702,10 @@ namespace Microsoft.Z3
             uint cdn = Symbol.ArrayLength(declNames);
             uint cd = AST.ArrayLength(decls);
             if (csn != cs || cdn != cd)
-                throw new Z3Exception("Argument size mismatch");	
+                throw new Z3Exception("Argument size mismatch");
             Native.Z3_parse_smtlib_string(nCtx, str,
                 AST.ArrayLength(sorts), Symbol.ArrayToNative(sortNames), AST.ArrayToNative(sorts),
-                AST.ArrayLength(decls), Symbol.ArrayToNative(declNames), AST.ArrayToNative(decls));	
+                AST.ArrayLength(decls), Symbol.ArrayToNative(declNames), AST.ArrayToNative(decls));
         }
 
         /// <summary>
@@ -2722,7 +2722,7 @@ namespace Microsoft.Z3
                 throw new Z3Exception("Argument size mismatch");
             Native.Z3_parse_smtlib_file(nCtx, fileName,
                 AST.ArrayLength(sorts), Symbol.ArrayToNative(sortNames), AST.ArrayToNative(sorts),
-                AST.ArrayLength(decls), Symbol.ArrayToNative(declNames), AST.ArrayToNative(decls));            
+                AST.ArrayLength(decls), Symbol.ArrayToNative(declNames), AST.ArrayToNative(decls));
         }
 
         /// <summary>
@@ -2811,7 +2811,7 @@ namespace Microsoft.Z3
                     res[i] = Sort.Create(this, Native.Z3_get_smtlib_sort(nCtx, i));
                 return res;
             }
-        }        
+        }
 
         /// <summary>
         /// Parse the given string using the SMT-LIB2 parser. 
@@ -2965,7 +2965,7 @@ namespace Microsoft.Z3
             Contract.Requires(ts == null || Contract.ForAll(0, ts.Length, j => ts[j] != null));
             Contract.Ensures(Contract.Result<Tactic>() != null);
 
-            
+
             CheckContextMatch(t1);
             CheckContextMatch(t2);
             CheckContextMatch(ts);
@@ -2982,7 +2982,7 @@ namespace Microsoft.Z3
                 last = Native.Z3_tactic_and_then(nCtx, t2.NativeObject, last);
                 return new Tactic(this, Native.Z3_tactic_and_then(nCtx, t1.NativeObject, last));
             }
-            else 
+            else
                 return new Tactic(this, Native.Z3_tactic_and_then(nCtx, t1.NativeObject, t2.NativeObject));
         }
 
@@ -3313,7 +3313,7 @@ namespace Microsoft.Z3
             Contract.Requires(p1 != null);
             Contract.Requires(p2 != null);
             Contract.Ensures(Contract.Result<Probe>() != null);
-            
+
             CheckContextMatch(p1);
             CheckContextMatch(p2);
             return new Probe(this, Native.Z3_probe_eq(nCtx, p1.NativeObject, p2.NativeObject));
@@ -3328,7 +3328,7 @@ namespace Microsoft.Z3
             Contract.Requires(p1 != null);
             Contract.Requires(p2 != null);
             Contract.Ensures(Contract.Result<Probe>() != null);
-            
+
             CheckContextMatch(p1);
             CheckContextMatch(p2);
             return new Probe(this, Native.Z3_probe_and(nCtx, p1.NativeObject, p2.NativeObject));
@@ -3343,7 +3343,7 @@ namespace Microsoft.Z3
             Contract.Requires(p1 != null);
             Contract.Requires(p2 != null);
             Contract.Ensures(Contract.Result<Probe>() != null);
-            
+
             CheckContextMatch(p1);
             CheckContextMatch(p2);
             return new Probe(this, Native.Z3_probe_or(nCtx, p1.NativeObject, p2.NativeObject));
@@ -3423,7 +3423,7 @@ namespace Microsoft.Z3
         /// <summary>
         /// Create a Fixedpoint context.
         /// </summary>
-        public Fixedpoint MkFixedpoint() 
+        public Fixedpoint MkFixedpoint()
         {
             Contract.Ensures(Contract.Result<Fixedpoint>() != null);
 
@@ -3464,7 +3464,7 @@ namespace Microsoft.Z3
         {
             return a.NativeObject;
         }
-        
+
         /// <summary>
         /// Return a string describing all available parameters to <c>Expr.Simplify</c>.
         /// </summary>
@@ -3478,14 +3478,10 @@ namespace Microsoft.Z3
         /// <summary>
         /// Retrieves parameter descriptions for simplifier.
         /// </summary>
-	public ParamDescrs SimplifyParameterDescriptions 
-	{
-           get
-           {
-               return new ParamDescrs(this, Native.Z3_simplify_get_param_descrs(nCtx));
-           }	
-	}
-
+        public ParamDescrs SimplifyParameterDescriptions
+        {
+            get { return new ParamDescrs(this, Native.Z3_simplify_get_param_descrs(nCtx)); }
+        }
 
         /// <summary>
         /// Enable/disable printing of warning messages to the console.
diff --git a/Microsoft.Z3/Fixedpoint.cs b/Microsoft.Z3/Fixedpoint.cs
index ae94c4d24..3e04e6169 100644
--- a/Microsoft.Z3/Fixedpoint.cs
+++ b/Microsoft.Z3/Fixedpoint.cs
@@ -34,10 +34,11 @@ namespace Microsoft.Z3
         /// </summary>
         public string Help
         {
-            get {
+            get
+            {
                 Contract.Ensures(Contract.Result<string>() != null);
-                return Native.Z3_fixedpoint_get_help(Context.nCtx, NativeObject); 
-	    }
+                return Native.Z3_fixedpoint_get_help(Context.nCtx, NativeObject);
+            }
         }
 
         /// <summary>
@@ -56,13 +57,10 @@ namespace Microsoft.Z3
         /// <summary>
         /// Retrieves parameter descriptions for Fixedpoint solver.
         /// </summary>
-	public ParamDescrs ParameterDescriptions 
-	{
-	   get
-	   {
-               return new ParamDescrs(Context, Native.Z3_fixedpoint_get_param_descrs(Context.nCtx, NativeObject));
-	   }	
-	}
+        public ParamDescrs ParameterDescriptions
+        {
+            get { return new ParamDescrs(Context, Native.Z3_fixedpoint_get_param_descrs(Context.nCtx, NativeObject)); }
+        }
 
 
         /// <summary>
@@ -146,7 +144,7 @@ namespace Microsoft.Z3
             Contract.Requires(Contract.ForAll(0, relations.Length, i => relations[i] != null));
 
             Context.CheckContextMatch(relations);
-            Z3_lbool r = (Z3_lbool)Native.Z3_fixedpoint_query_relations(Context.nCtx, NativeObject, 
+            Z3_lbool r = (Z3_lbool)Native.Z3_fixedpoint_query_relations(Context.nCtx, NativeObject,
                                    AST.ArrayLength(relations), AST.ArrayToNative(relations));
             switch (r)
             {
@@ -179,7 +177,7 @@ namespace Microsoft.Z3
         /// <summary>
         /// Update named rule into in the fixedpoint solver.
         /// </summary>        
-	public void UpdateRule(BoolExpr rule, Symbol name)
+        public void UpdateRule(BoolExpr rule, Symbol name)
         {
             Contract.Requires(rule != null);
 
@@ -210,18 +208,18 @@ namespace Microsoft.Z3
         /// <summary>
         /// Retrieve the number of levels explored for a given predicate.
         /// </summary>                
-	    public uint GetNumLevels(FuncDecl predicate)
-	    {
-	        return Native.Z3_fixedpoint_get_num_levels(Context.nCtx, NativeObject, predicate.NativeObject);
-	    }
+        public uint GetNumLevels(FuncDecl predicate)
+        {
+            return Native.Z3_fixedpoint_get_num_levels(Context.nCtx, NativeObject, predicate.NativeObject);
+        }
 
         /// <summary>
         /// Retrieve the cover of a predicate.
         /// </summary>                
         public Expr GetCoverDelta(int level, FuncDecl predicate)
         {
-             IntPtr res = Native.Z3_fixedpoint_get_cover_delta(Context.nCtx, NativeObject, level, predicate.NativeObject);
-             return (res == IntPtr.Zero) ? null : Expr.Create(Context, res);
+            IntPtr res = Native.Z3_fixedpoint_get_cover_delta(Context.nCtx, NativeObject, level, predicate.NativeObject);
+            return (res == IntPtr.Zero) ? null : Expr.Create(Context, res);
         }
 
         /// <summary>
@@ -230,7 +228,7 @@ namespace Microsoft.Z3
         /// </summary>                
         public void AddCover(int level, FuncDecl predicate, Expr property)
         {
-             Native.Z3_fixedpoint_add_cover(Context.nCtx, NativeObject, level, predicate.NativeObject, property.NativeObject);
+            Native.Z3_fixedpoint_add_cover(Context.nCtx, NativeObject, level, predicate.NativeObject, property.NativeObject);
         }
 
         /// <summary>
@@ -259,7 +257,7 @@ namespace Microsoft.Z3
         public string ToString(BoolExpr[] queries)
         {
 
-            return Native.Z3_fixedpoint_to_string(Context.nCtx, NativeObject, 
+            return Native.Z3_fixedpoint_to_string(Context.nCtx, NativeObject,
                              AST.ArrayLength(queries), AST.ArrayToNative(queries));
         }
 
diff --git a/Microsoft.Z3/ParamDescrs.cs b/Microsoft.Z3/ParamDescrs.cs
index f93d449a4..961bceeff 100644
--- a/Microsoft.Z3/ParamDescrs.cs
+++ b/Microsoft.Z3/ParamDescrs.cs
@@ -23,7 +23,7 @@ using System.Diagnostics.Contracts;
 namespace Microsoft.Z3
 {
     /// <summary>
-    /// A ParameterSet represents a configuration in the form of Symbol/value pairs.
+    /// A ParamDescrs describes a set of parameters.
     /// </summary>
     [ContractVerification(true)]
     public class ParamDescrs : Z3Object
@@ -62,6 +62,27 @@ namespace Microsoft.Z3
             }
         }
 
+        /// <summary>
+        /// The size of the ParamDescrs.
+        /// </summary>
+        public uint Size
+        {
+            get { return Native.Z3_param_descrs_size(Context.nCtx, NativeObject); }
+        }
+
+        /// <summary>
+        /// Retrieves a string representation of the ParamDescrs. 
+        /// </summary>    
+        public override string ToString()
+        {
+            String res = "";
+            Symbol[] n = Names;
+            if (n.Length > 0) res = n[0].ToString();
+            for (uint i = 1; i < n.Length; i++)
+                res += " " + n[i].ToString();
+            return res;
+        }
+
         #region Internal
         internal ParamDescrs(Context ctx, IntPtr obj)
             : base(ctx, obj)
diff --git a/Microsoft.Z3/Solver.cs b/Microsoft.Z3/Solver.cs
index 6450a8cbc..dc261bfd8 100644
--- a/Microsoft.Z3/Solver.cs
+++ b/Microsoft.Z3/Solver.cs
@@ -60,10 +60,7 @@ namespace Microsoft.Z3
         /// </summary>
         public ParamDescrs ParameterDescriptions
         {
-            get
-            {
-                return new ParamDescrs(Context, Native.Z3_solver_get_param_descrs(Context.nCtx, NativeObject));
-            }
+            get { return new ParamDescrs(Context, Native.Z3_solver_get_param_descrs(Context.nCtx, NativeObject)); }
         }
 
 
diff --git a/Microsoft.Z3/Tactic.cs b/Microsoft.Z3/Tactic.cs
index 62d9015f8..6340c9b41 100644
--- a/Microsoft.Z3/Tactic.cs
+++ b/Microsoft.Z3/Tactic.cs
@@ -39,21 +39,19 @@ namespace Microsoft.Z3
             get
             {
                 Contract.Ensures(Contract.Result<string>() != null);
- 
-                return Native.Z3_tactic_get_help(Context.nCtx, NativeObject); }
+
+                return Native.Z3_tactic_get_help(Context.nCtx, NativeObject);
+            }
         }
 
 
         /// <summary>
         /// Retrieves parameter descriptions for Tactics.
         /// </summary>
-	public ParamDescrs ParameterDescriptions 
-	{
-	   get
-	   {
-               return new ParamDescrs(Context, Native.Z3_tactic_get_param_descrs(Context.nCtx, NativeObject));
-	   }	
-	}
+        public ParamDescrs ParameterDescriptions
+        {
+            get { return new ParamDescrs(Context, Native.Z3_tactic_get_param_descrs(Context.nCtx, NativeObject)); }
+        }
 
 
         /// <summary>
@@ -83,7 +81,7 @@ namespace Microsoft.Z3
             {
                 Contract.Requires(g != null);
                 Contract.Ensures(Contract.Result<ApplyResult>() != null);
-                
+
                 return Apply(g);
             }
         }
@@ -103,11 +101,13 @@ namespace Microsoft.Z3
         }
 
         #region Internal
-        internal Tactic(Context ctx, IntPtr obj) : base(ctx, obj) 
+        internal Tactic(Context ctx, IntPtr obj)
+            : base(ctx, obj)
         {
             Contract.Requires(ctx != null);
         }
-        internal Tactic(Context ctx, string name) : base(ctx, Native.Z3_mk_tactic(ctx.nCtx, name)) 
+        internal Tactic(Context ctx, string name)
+            : base(ctx, Native.Z3_mk_tactic(ctx.nCtx, name))
         {
             Contract.Requires(ctx != null);
         }
@@ -123,7 +123,7 @@ namespace Microsoft.Z3
             {
                 Native.Z3_tactic_dec_ref(ctx.nCtx, obj);
             }
-        };        
+        };
 
         internal override void IncRef(IntPtr o)
         {