diff --git a/Makefile b/Makefile
index 54672ff..4be80a5 100755
--- a/Makefile
+++ b/Makefile
@@ -37,7 +37,9 @@ PV_FILE_NAMES = \
 
 PV_FILES=$(PV_FILE_NAMES:%.v=$(PV_DIR)/%.v)
 
-GMP_FILES = ./projects/lib/GmpAux.v ./projects/lib/GmpNumber.v
+GMP_FILES = \
+	./projects/lib/GmpAux.v ./projects/lib/GmpNumber.v \
+	./projects/lib/gmp_goal.v
 
 FILES = $(PV_FILES) \
   $(GMP_FILES)
diff --git a/projects/int_array_def.h b/projects/int_array_def.h
index e5f5957..095107e 100644
--- a/projects/int_array_def.h
+++ b/projects/int_array_def.h
@@ -1,7 +1,8 @@
 /*@ Extern Coq (sum : list Z -> Z) 
                (sublist : {A} -> Z -> Z -> list A -> list A)
                (store_int_array : Z -> Z -> list Z -> Assertion)
-               (store_uint_array : Z -> Z -> list Z -> Assertion)(store_uint_array : Z -> Z -> list Z -> Assertion)
+               (store_uint_array : Z -> Z -> list Z -> Assertion)
+               (store_undef_uint_array_rec : Z -> Z -> Z -> Assertion)
                (store_int_array_missing_i_rec: Z -> Z -> Z -> Z -> list Z -> Assertion)
                (store_uint_array_missing_i_rec: Z -> Z -> Z -> Z -> list Z -> Assertion)
                (store_array_box: Z -> Z -> list Z -> Assertion)
diff --git a/projects/lib/GmpAux.v b/projects/lib/GmpAux.v
index 4701085..6d4d524 100755
--- a/projects/lib/GmpAux.v
+++ b/projects/lib/GmpAux.v
@@ -100,5 +100,91 @@ Proof.
     rewrite IHl1.
     reflexivity.
 Qed.
+
+Lemma store_array_rec_false: forall x storeA lo hi (l: list Z),
+  lo > hi ->
+  store_array_rec storeA x lo hi l |-- [| False |].
+Proof.
+  intros.
+  revert x storeA lo hi H.
+  induction l; intros.
+  + simpl.
+    entailer!.
+  + simpl.
+    specialize (IHl x storeA (lo + 1) hi ltac:(lia)).
+    sep_apply IHl.
+    entailer!.
+Qed.
+
+Lemma store_array_rec_empty: forall x storeA lo (l: list Z),
+  store_array_rec storeA x lo lo l |-- emp && [| l = nil |].
+Proof.
+  intros.
+  destruct l.
+  + simpl.
+    entailer!.
+  + simpl.
+    sep_apply store_array_rec_false; [ entailer! | lia ].
+Qed.
+
+Lemma store_uint_array_rec_false: forall x lo hi l,
+  lo > hi ->
+  store_uint_array_rec x lo hi l |-- [| False |].
+Proof.
+  intros.
+  unfold store_uint_array_rec.
+  sep_apply store_array_rec_false; [ entailer! | lia ].
+Qed.
+
+Lemma store_uint_array_rec_empty: forall x lo l,
+  store_uint_array_rec x lo lo l |-- emp && [| l = nil |].
+Proof.
+  induction l.
+  + unfold store_uint_array_rec.
+    simpl.
+    entailer!.
+  + pose proof (store_uint_array_rec_false x (lo + 1) lo l ltac:(lia)).
+    unfold store_uint_array_rec in *.
+    simpl in *.
+    sep_apply H.
+    entailer!.
+Qed.
+
+Lemma store_uint_array_empty: forall x l,
+  store_uint_array x 0 l |-- emp && [| l = nil |].
+Proof.
+  intros x l.
+  revert x.
+  induction l; intros.
+  + unfold store_uint_array, store_array.
+    simpl.
+    entailer!.
+  + unfold store_uint_array, store_array.
+    simpl.
+    sep_apply store_array_rec_false; [ entailer! | lia ].
+Qed.
+
+Lemma store_uarray_rec_equals_store_uarray: forall x lo hi l,
+  lo < hi ->
+  store_uint_array_rec x lo hi l --||--
+    store_uint_array (x + sizeof(UINT) * lo) (hi - lo) l.
+Proof.
+  intros.
+  unfold store_uint_array_rec, store_uint_array, store_array.
+  pose proof (store_array_rec_base x 0 lo hi l (sizeof(UINT))
+    store_uint
+    (fun (x: addr) (lo a: Z) => 
+      (x + lo * sizeof(UINT)) # UInt |-> a) ltac:(reflexivity)).
+  assert (x + sizeof(UINT) * lo = x + lo * sizeof(UINT)). { lia. }
+  rewrite H1; clear H1.
+  assert (0 + lo = lo). { lia. }
+  repeat rewrite H1 in H0; clear H1.
+  destruct H0.
+  split.
+  + sep_apply H0.
+    entailer!.
+  + sep_apply H1.
+    entailer!.
+Qed.
       
 End Aux.
\ No newline at end of file
diff --git a/projects/lib/GmpNumber.v b/projects/lib/GmpNumber.v
index 7104900..9ba0593 100755
--- a/projects/lib/GmpNumber.v
+++ b/projects/lib/GmpNumber.v
@@ -21,11 +21,12 @@ Import naive_C_Rules.
 Local Open Scope sac.
 
 Notation "'UINT_MOD'" := (4294967296).
+Notation "'LENGTH_MAX'" := (100000000).
 
 Module Internal.
 
 Definition mpd_store_list (ptr: addr) (data: list Z) (cap: Z): Assertion :=
-  [| Zlength data <= cap |] &&
+  [| Zlength data <= cap |] && [| cap <= LENGTH_MAX |] && 
   store_uint_array ptr (Zlength data) data **
   store_undef_uint_array_rec ptr ((Zlength data) + 1) cap.
 
@@ -46,7 +47,7 @@ Definition list_store_Z (data: list Z) (n: Z): Prop :=
 
 Definition mpd_store_Z (ptr: addr) (n: Z) (size: Z) (cap: Z): Assertion :=
   EX data,
-    mpd_store_list ptr data cap && [| list_store_Z data n|] && [| size = Zlength data |].
+    mpd_store_list ptr data cap && [| list_store_Z data n |] && [| size = Zlength data |].
 
 Lemma __list_within_bound_concat_r: forall (l1: list Z) (a: Z),
   list_within_bound l1 ->
diff --git a/projects/lib/gmp_goal.v b/projects/lib/gmp_goal.v
new file mode 100644
index 0000000..0456f92
--- /dev/null
+++ b/projects/lib/gmp_goal.v
@@ -0,0 +1,624 @@
+Require Import Coq.ZArith.ZArith.
+Require Import Coq.Bool.Bool.
+Require Import Coq.Strings.String.
+Require Import Coq.Lists.List.
+Require Import Coq.Classes.RelationClasses.
+Require Import Coq.Classes.Morphisms.
+Require Import Coq.micromega.Psatz.
+Require Import Coq.Sorting.Permutation.
+From AUXLib Require Import int_auto Axioms Feq Idents List_lemma VMap.
+Require Import SetsClass.SetsClass. Import SetsNotation.
+From SimpleC.SL Require Import Mem SeparationLogic.
+Require Import GmpLib.GmpNumber. Import Internal.
+Require Import Logic.LogicGenerator.demo932.Interface.
+Local Open Scope Z_scope.
+Local Open Scope sets.
+Local Open Scope string.
+Local Open Scope list.
+Import naive_C_Rules.
+Local Open Scope sac.
+
+Definition Zmax := Z.max.
+
+(*----- Function gmp_abs -----*)
+
+Definition gmp_abs_safety_wit_1 := 
+forall (x_pre: Z) ,
+  [| (x_pre < 0) |] 
+  &&  [| (INT_MIN < x_pre) |] 
+  &&  [| (x_pre <= INT_MAX) |]
+  &&  ((( &( "x" ) )) # Int  |-> x_pre)
+|--
+  [| (x_pre <> (INT_MIN)) |]
+.
+
+Definition gmp_abs_return_wit_1_1 := 
+forall (x_pre: Z) ,
+  [| (x_pre < 0) |] 
+  &&  [| (INT_MIN < x_pre) |] 
+  &&  [| (x_pre <= INT_MAX) |]
+  &&  emp
+|--
+  [| ((-x_pre) = (Zabs (x_pre))) |]
+  &&  emp
+.
+
+Definition gmp_abs_return_wit_1_2 := 
+forall (x_pre: Z) ,
+  [| (x_pre >= 0) |] 
+  &&  [| (INT_MIN < x_pre) |] 
+  &&  [| (x_pre <= INT_MAX) |]
+  &&  emp
+|--
+  [| (x_pre = (Zabs (x_pre))) |]
+  &&  emp
+.
+
+(*----- Function gmp_max -----*)
+
+Definition gmp_max_return_wit_1_1 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre <= b_pre) |]
+  &&  emp
+|--
+  [| (b_pre = (Zmax (a_pre) (b_pre))) |]
+  &&  emp
+.
+
+Definition gmp_max_return_wit_1_2 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre > b_pre) |]
+  &&  emp
+|--
+  [| (a_pre = (Zmax (a_pre) (b_pre))) |]
+  &&  emp
+.
+
+(*----- Function gmp_cmp -----*)
+
+Definition gmp_cmp_safety_wit_1 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre >= b_pre) |] 
+  &&  [| (a_pre <= b_pre) |]
+  &&  ((( &( "b" ) )) # Int  |-> b_pre)
+  **  ((( &( "a" ) )) # Int  |-> a_pre)
+|--
+  [| ((0 - 0 ) <= INT_MAX) |] 
+  &&  [| ((INT_MIN) <= (0 - 0 )) |]
+.
+
+Definition gmp_cmp_safety_wit_2 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre < b_pre) |] 
+  &&  [| (a_pre <= b_pre) |]
+  &&  ((( &( "b" ) )) # Int  |-> b_pre)
+  **  ((( &( "a" ) )) # Int  |-> a_pre)
+|--
+  [| ((0 - 1 ) <= INT_MAX) |] 
+  &&  [| ((INT_MIN) <= (0 - 1 )) |]
+.
+
+Definition gmp_cmp_safety_wit_3 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre >= b_pre) |] 
+  &&  [| (a_pre > b_pre) |]
+  &&  ((( &( "b" ) )) # Int  |-> b_pre)
+  **  ((( &( "a" ) )) # Int  |-> a_pre)
+|--
+  [| ((1 - 0 ) <= INT_MAX) |] 
+  &&  [| ((INT_MIN) <= (1 - 0 )) |]
+.
+
+Definition gmp_cmp_safety_wit_4 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre < b_pre) |] 
+  &&  [| (a_pre > b_pre) |]
+  &&  ((( &( "b" ) )) # Int  |-> b_pre)
+  **  ((( &( "a" ) )) # Int  |-> a_pre)
+|--
+  [| False |]
+.
+
+Definition gmp_cmp_return_wit_1_1 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre >= b_pre) |] 
+  &&  [| (a_pre > b_pre) |]
+  &&  emp
+|--
+  ([| (a_pre < b_pre) |] 
+  &&  [| ((1 - 0 ) = (-1)) |]
+  &&  emp)
+  ||
+  ([| (a_pre = b_pre) |] 
+  &&  [| ((1 - 0 ) = 0) |]
+  &&  emp)
+  ||
+  ([| (a_pre > b_pre) |] 
+  &&  [| ((1 - 0 ) = 1) |]
+  &&  emp)
+.
+
+Definition gmp_cmp_return_wit_1_2 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre < b_pre) |] 
+  &&  [| (a_pre <= b_pre) |]
+  &&  emp
+|--
+  ([| (a_pre < b_pre) |] 
+  &&  [| ((0 - 1 ) = (-1)) |]
+  &&  emp)
+  ||
+  ([| (a_pre = b_pre) |] 
+  &&  [| ((0 - 1 ) = 0) |]
+  &&  emp)
+  ||
+  ([| (a_pre > b_pre) |] 
+  &&  [| ((0 - 1 ) = 1) |]
+  &&  emp)
+.
+
+Definition gmp_cmp_return_wit_1_3 := 
+forall (b_pre: Z) (a_pre: Z) ,
+  [| (a_pre >= b_pre) |] 
+  &&  [| (a_pre <= b_pre) |]
+  &&  emp
+|--
+  ([| (a_pre < b_pre) |] 
+  &&  [| ((0 - 0 ) = (-1)) |]
+  &&  emp)
+  ||
+  ([| (a_pre = b_pre) |] 
+  &&  [| ((0 - 0 ) = 0) |]
+  &&  emp)
+  ||
+  ([| (a_pre > b_pre) |] 
+  &&  [| ((0 - 0 ) = 1) |]
+  &&  emp)
+.
+
+(*----- Function mpn_copyi -----*)
+
+Definition mpn_copyi_safety_wit_1 := 
+forall (n_pre: Z) (s_pre: Z) (d_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l: (@list Z)) ,
+  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  ((( &( "i" ) )) # Int  |->_)
+  **  ((( &( "d" ) )) # Ptr  |-> d_pre)
+  **  (store_uint_array_rec d_pre 0 cap2 l2 )
+  **  (store_uint_array d_pre 0 nil )
+  **  ((( &( "n" ) )) # Int  |-> n_pre)
+  **  ((( &( "s" ) )) # Ptr  |-> s_pre)
+  **  (store_uint_array s_pre n_pre l )
+  **  (store_undef_uint_array_rec s_pre (n_pre + 1 ) cap1 )
+|--
+  [| (0 <= INT_MAX) |] 
+  &&  [| ((INT_MIN) <= 0) |]
+.
+
+Definition mpn_copyi_safety_wit_2 := 
+forall (n_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l: (@list Z)) (l': (@list Z)) (d: Z) (s: Z) (l_2: (@list Z)) (n: Z) (i: Z) (a: Z) (l2': (@list Z)) ,
+  [| (l' = (cons (a) (l2'))) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |] 
+  &&  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_2)) = n) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array d (i + 1 ) (replace_Znth (i) ((Znth i l_2 0)) ((app ((sublist (0) (i) (l_2))) ((cons (a) (nil)))))) )
+  **  (store_uint_array s n l_2 )
+  **  ((( &( "i" ) )) # Int  |-> i)
+  **  ((( &( "n" ) )) # Int  |-> n)
+  **  ((( &( "d" ) )) # Ptr  |-> d)
+  **  (store_uint_array_rec d (i + 1 ) cap2 l2' )
+  **  ((( &( "s" ) )) # Ptr  |-> s)
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+|--
+  [| ((i + 1 ) <= INT_MAX) |] 
+  &&  [| ((INT_MIN) <= (i + 1 )) |]
+.
+
+Definition mpn_copyi_entail_wit_1 := 
+forall (n_pre: Z) (s_pre: Z) (d_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l_2: (@list Z)) ,
+  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l_2)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array_rec d_pre 0 cap2 l2 )
+  **  (store_uint_array d_pre 0 nil )
+  **  (store_uint_array s_pre n_pre l_2 )
+  **  (store_undef_uint_array_rec s_pre (n_pre + 1 ) cap1 )
+|--
+  EX (l': (@list Z))  (l: (@list Z)) ,
+  [| (0 <= 0) |] 
+  &&  [| (0 <= n_pre) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l_2)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array s_pre n_pre l )
+  **  (store_undef_uint_array_rec s_pre (n_pre + 1 ) cap1 )
+  **  (store_uint_array d_pre 0 (sublist (0) (0) (l)) )
+  **  (store_uint_array_rec d_pre 0 cap2 l' )
+.
+
+Definition mpn_copyi_entail_wit_2 := 
+forall (n_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l_2: (@list Z)) (l'_2: (@list Z)) (d: Z) (s: Z) (l_3: (@list Z)) (n: Z) (i: Z) (a: Z) (l2': (@list Z)) ,
+  [| (l'_2 = (cons (a) (l2'))) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |] 
+  &&  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_3)) = n) |] 
+  &&  [| (list_store_Z l_3 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l_2)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array d (i + 1 ) (replace_Znth (i) ((Znth i l_3 0)) ((app ((sublist (0) (i) (l_3))) ((cons (a) (nil)))))) )
+  **  (store_uint_array s n l_3 )
+  **  (store_uint_array_rec d (i + 1 ) cap2 l2' )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+|--
+  EX (l': (@list Z))  (l: (@list Z)) ,
+  [| (0 <= (i + 1 )) |] 
+  &&  [| ((i + 1 ) <= n) |] 
+  &&  [| ((Zlength (l)) = n) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l_2)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array s n l )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+  **  (store_uint_array d (i + 1 ) (sublist (0) ((i + 1 )) (l)) )
+  **  (store_uint_array_rec d (i + 1 ) cap2 l' )
+.
+
+Definition mpn_copyi_return_wit_1 := 
+forall (n_pre: Z) (s_pre: Z) (d_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l_2: (@list Z)) (l': (@list Z)) (d: Z) (s: Z) (l: (@list Z)) (n: Z) (i: Z) ,
+  [| (i >= n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l)) = n) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l_2)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array s n l )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+  **  (store_uint_array d i (sublist (0) (i) (l)) )
+  **  (store_uint_array_rec d i cap2 l' )
+|--
+  (mpd_store_Z s_pre val n_pre cap1 )
+  **  (mpd_store_Z d_pre val n_pre cap2 )
+.
+
+Definition mpn_copyi_partial_solve_wit_1 := 
+forall (n_pre: Z) (s_pre: Z) (d_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) ,
+  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (mpd_store_Z s_pre val n_pre cap1 )
+  **  (store_uint_array d_pre cap2 l2 )
+|--
+  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (mpd_store_Z s_pre val n_pre cap1 )
+  **  (store_uint_array d_pre cap2 l2 )
+.
+
+Definition mpn_copyi_partial_solve_wit_2_pure := 
+forall (n_pre: Z) (s_pre: Z) (d_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l: (@list Z)) ,
+  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  ((( &( "n" ) )) # Int  |-> n_pre)
+  **  ((( &( "s" ) )) # Ptr  |-> s_pre)
+  **  (store_uint_array s_pre n_pre l )
+  **  (store_undef_uint_array_rec s_pre (n_pre + 1 ) cap1 )
+  **  ((( &( "d" ) )) # Ptr  |-> d_pre)
+  **  (store_uint_array d_pre cap2 l2 )
+|--
+  [| ((Zlength (l2)) = cap2) |]
+.
+
+Definition mpn_copyi_partial_solve_wit_2_aux := 
+forall (n_pre: Z) (s_pre: Z) (d_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l: (@list Z)) ,
+  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array s_pre n_pre l )
+  **  (store_undef_uint_array_rec s_pre (n_pre + 1 ) cap1 )
+  **  (store_uint_array d_pre cap2 l2 )
+|--
+  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array d_pre cap2 l2 )
+  **  (store_uint_array s_pre n_pre l )
+  **  (store_undef_uint_array_rec s_pre (n_pre + 1 ) cap1 )
+.
+
+Definition mpn_copyi_partial_solve_wit_2 := mpn_copyi_partial_solve_wit_2_pure -> mpn_copyi_partial_solve_wit_2_aux.
+
+Definition mpn_copyi_partial_solve_wit_3_pure := 
+forall (n_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l_2: (@list Z)) (l': (@list Z)) (d: Z) (s: Z) (l: (@list Z)) (n: Z) (i: Z) ,
+  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l)) = n) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l_2)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  ((( &( "i" ) )) # Int  |-> i)
+  **  ((( &( "n" ) )) # Int  |-> n)
+  **  ((( &( "s" ) )) # Ptr  |-> s)
+  **  (store_uint_array s n l )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+  **  ((( &( "d" ) )) # Ptr  |-> d)
+  **  (store_uint_array d i (sublist (0) (i) (l)) )
+  **  (store_uint_array_rec d i cap2 l' )
+|--
+  [| (0 <= i) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |]
+.
+
+Definition mpn_copyi_partial_solve_wit_3_aux := 
+forall (n_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l: (@list Z)) (l': (@list Z)) (d: Z) (s: Z) (l_2: (@list Z)) (n: Z) (i: Z) ,
+  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_2)) = n) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array s n l_2 )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+  **  (store_uint_array d i (sublist (0) (i) (l_2)) )
+  **  (store_uint_array_rec d i cap2 l' )
+|--
+  [| (0 <= i) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |] 
+  &&  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_2)) = n) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array_rec d i cap2 l' )
+  **  (store_uint_array d i (sublist (0) (i) (l_2)) )
+  **  (store_uint_array s n l_2 )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+.
+
+Definition mpn_copyi_partial_solve_wit_3 := mpn_copyi_partial_solve_wit_3_pure -> mpn_copyi_partial_solve_wit_3_aux.
+
+Definition mpn_copyi_partial_solve_wit_4 := 
+forall (n_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l: (@list Z)) (l': (@list Z)) (d: Z) (s: Z) (l_2: (@list Z)) (n: Z) (i: Z) (a: Z) (l2': (@list Z)) ,
+  [| (l' = (cons (a) (l2'))) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |] 
+  &&  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_2)) = n) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array_rec d (i + 1 ) cap2 l2' )
+  **  (store_uint_array d (i + 1 ) (app ((sublist (0) (i) (l_2))) ((cons (a) (nil)))) )
+  **  (store_uint_array s n l_2 )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+|--
+  [| (l' = (cons (a) (l2'))) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |] 
+  &&  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_2)) = n) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (((s + (i * sizeof(UINT) ) )) # UInt  |-> (Znth i l_2 0))
+  **  (store_uint_array_missing_i_rec s i 0 n l_2 )
+  **  (store_uint_array_rec d (i + 1 ) cap2 l2' )
+  **  (store_uint_array d (i + 1 ) (app ((sublist (0) (i) (l_2))) ((cons (a) (nil)))) )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+.
+
+Definition mpn_copyi_partial_solve_wit_5 := 
+forall (n_pre: Z) (cap2: Z) (cap1: Z) (l2: (@list Z)) (val: Z) (l: (@list Z)) (l': (@list Z)) (d: Z) (s: Z) (l_2: (@list Z)) (n: Z) (i: Z) (a: Z) (l2': (@list Z)) ,
+  [| (l' = (cons (a) (l2'))) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |] 
+  &&  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_2)) = n) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (store_uint_array s n l_2 )
+  **  (store_uint_array_rec d (i + 1 ) cap2 l2' )
+  **  (store_uint_array d (i + 1 ) (app ((sublist (0) (i) (l_2))) ((cons (a) (nil)))) )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+|--
+  [| (l' = (cons (a) (l2'))) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |] 
+  &&  [| (i < n) |] 
+  &&  [| (0 <= i) |] 
+  &&  [| (i <= n) |] 
+  &&  [| ((Zlength (l_2)) = n) |] 
+  &&  [| (list_store_Z l_2 val ) |] 
+  &&  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (n_pre <= cap1) |] 
+  &&  [| ((Zlength (l)) = n_pre) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |] 
+  &&  [| ((Zlength (l2)) = cap2) |] 
+  &&  [| (cap2 >= n_pre) |]
+  &&  (((d + (i * sizeof(UINT) ) )) # UInt  |->_)
+  **  (store_uint_array_missing_i_rec d i 0 (i + 1 ) (app ((sublist (0) (i) (l_2))) ((cons (a) (nil)))) )
+  **  (store_uint_array s n l_2 )
+  **  (store_uint_array_rec d (i + 1 ) cap2 l2' )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+.
+
+Definition mpn_copyi_which_implies_wit_1 := 
+forall (cap1: Z) (val: Z) (n: Z) (s: Z) ,
+  (mpd_store_Z s val n cap1 )
+|--
+  EX (l: (@list Z)) ,
+  [| (n <= cap1) |] 
+  &&  [| ((Zlength (l)) = n) |] 
+  &&  [| (cap1 <= 100000000) |] 
+  &&  [| (list_store_Z l val ) |]
+  &&  (store_uint_array s n l )
+  **  (store_undef_uint_array_rec s (n + 1 ) cap1 )
+.
+
+Definition mpn_copyi_which_implies_wit_2 := 
+forall (cap2: Z) (l2: (@list Z)) (d: Z) ,
+  [| ((Zlength (l2)) = cap2) |]
+  &&  (store_uint_array d cap2 l2 )
+|--
+  [| ((Zlength (l2)) = cap2) |]
+  &&  (store_uint_array_rec d 0 cap2 l2 )
+  **  (store_uint_array d 0 nil )
+.
+
+Definition mpn_copyi_which_implies_wit_3 := 
+forall (cap2: Z) (l': (@list Z)) (l: (@list Z)) (i: Z) (n: Z) (d: Z) ,
+  [| (0 <= i) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |]
+  &&  (store_uint_array_rec d i cap2 l' )
+  **  (store_uint_array d i (sublist (0) (i) (l)) )
+|--
+  EX (a: Z)  (l2': (@list Z)) ,
+  [| (l' = (cons (a) (l2'))) |] 
+  &&  [| (i < n) |] 
+  &&  [| (n <= cap2) |]
+  &&  (store_uint_array_rec d (i + 1 ) cap2 l2' )
+  **  (store_uint_array d (i + 1 ) (app ((sublist (0) (i) (l))) ((cons (a) (nil)))) )
+.
+
+Module Type VC_Correct.
+
+Axiom proof_of_gmp_abs_safety_wit_1 : gmp_abs_safety_wit_1.
+Axiom proof_of_gmp_abs_return_wit_1_1 : gmp_abs_return_wit_1_1.
+Axiom proof_of_gmp_abs_return_wit_1_2 : gmp_abs_return_wit_1_2.
+Axiom proof_of_gmp_max_return_wit_1_1 : gmp_max_return_wit_1_1.
+Axiom proof_of_gmp_max_return_wit_1_2 : gmp_max_return_wit_1_2.
+Axiom proof_of_gmp_cmp_safety_wit_1 : gmp_cmp_safety_wit_1.
+Axiom proof_of_gmp_cmp_safety_wit_2 : gmp_cmp_safety_wit_2.
+Axiom proof_of_gmp_cmp_safety_wit_3 : gmp_cmp_safety_wit_3.
+Axiom proof_of_gmp_cmp_safety_wit_4 : gmp_cmp_safety_wit_4.
+Axiom proof_of_gmp_cmp_return_wit_1_1 : gmp_cmp_return_wit_1_1.
+Axiom proof_of_gmp_cmp_return_wit_1_2 : gmp_cmp_return_wit_1_2.
+Axiom proof_of_gmp_cmp_return_wit_1_3 : gmp_cmp_return_wit_1_3.
+Axiom proof_of_mpn_copyi_safety_wit_1 : mpn_copyi_safety_wit_1.
+Axiom proof_of_mpn_copyi_safety_wit_2 : mpn_copyi_safety_wit_2.
+Axiom proof_of_mpn_copyi_entail_wit_1 : mpn_copyi_entail_wit_1.
+Axiom proof_of_mpn_copyi_entail_wit_2 : mpn_copyi_entail_wit_2.
+Axiom proof_of_mpn_copyi_return_wit_1 : mpn_copyi_return_wit_1.
+Axiom proof_of_mpn_copyi_partial_solve_wit_1 : mpn_copyi_partial_solve_wit_1.
+Axiom proof_of_mpn_copyi_partial_solve_wit_2_pure : mpn_copyi_partial_solve_wit_2_pure.
+Axiom proof_of_mpn_copyi_partial_solve_wit_2 : mpn_copyi_partial_solve_wit_2.
+Axiom proof_of_mpn_copyi_partial_solve_wit_3_pure : mpn_copyi_partial_solve_wit_3_pure.
+Axiom proof_of_mpn_copyi_partial_solve_wit_3 : mpn_copyi_partial_solve_wit_3.
+Axiom proof_of_mpn_copyi_partial_solve_wit_4 : mpn_copyi_partial_solve_wit_4.
+Axiom proof_of_mpn_copyi_partial_solve_wit_5 : mpn_copyi_partial_solve_wit_5.
+Axiom proof_of_mpn_copyi_which_implies_wit_1 : mpn_copyi_which_implies_wit_1.
+Axiom proof_of_mpn_copyi_which_implies_wit_2 : mpn_copyi_which_implies_wit_2.
+Axiom proof_of_mpn_copyi_which_implies_wit_3 : mpn_copyi_which_implies_wit_3.
+
+End VC_Correct.
diff --git a/projects/lib/gmp_goal_check.v b/projects/lib/gmp_goal_check.v
new file mode 100644
index 0000000..43755db
--- /dev/null
+++ b/projects/lib/gmp_goal_check.v
@@ -0,0 +1,6 @@
+From  Require Import gmp_goal gmp_proof_auto gmp_proof_manual.
+
+Module VC_Correctness : VC_Correct.
+  Include gmp_proof_auto.
+  Include gmp_proof_manual.
+End VC_Correctness.
diff --git a/projects/lib/gmp_proof_auto.v b/projects/lib/gmp_proof_auto.v
new file mode 100644
index 0000000..1cb2659
--- /dev/null
+++ b/projects/lib/gmp_proof_auto.v
@@ -0,0 +1,65 @@
+Require Import Coq.ZArith.ZArith.
+Require Import Coq.Bool.Bool.
+Require Import Coq.Strings.String.
+Require Import Coq.Lists.List.
+Require Import Coq.Classes.RelationClasses.
+Require Import Coq.Classes.Morphisms.
+Require Import Coq.micromega.Psatz.
+Require Import Coq.Sorting.Permutation.
+From AUXLib Require Import int_auto Axioms Feq Idents List_lemma VMap.
+Require Import SetsClass.SetsClass. Import SetsNotation.
+From SimpleC.SL Require Import Mem SeparationLogic.
+From  Require Import gmp_goal.
+Require Import Logic.LogicGenerator.demo932.Interface.
+Local Open Scope Z_scope.
+Local Open Scope sets.
+Local Open Scope string.
+Local Open Scope list.
+Import naive_C_Rules.
+Local Open Scope sac.
+
+Lemma proof_of_gmp_abs_safety_wit_1 : gmp_abs_safety_wit_1.
+Proof. Admitted. 
+
+Lemma proof_of_gmp_cmp_safety_wit_1 : gmp_cmp_safety_wit_1.
+Proof. Admitted. 
+
+Lemma proof_of_gmp_cmp_safety_wit_2 : gmp_cmp_safety_wit_2.
+Proof. Admitted. 
+
+Lemma proof_of_gmp_cmp_safety_wit_3 : gmp_cmp_safety_wit_3.
+Proof. Admitted. 
+
+Lemma proof_of_gmp_cmp_safety_wit_4 : gmp_cmp_safety_wit_4.
+Proof. Admitted. 
+
+Lemma proof_of_gmp_cmp_return_wit_1_1 : gmp_cmp_return_wit_1_1.
+Proof. Admitted. 
+
+Lemma proof_of_gmp_cmp_return_wit_1_3 : gmp_cmp_return_wit_1_3.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_safety_wit_1 : mpn_copyi_safety_wit_1.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_safety_wit_2 : mpn_copyi_safety_wit_2.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_partial_solve_wit_1 : mpn_copyi_partial_solve_wit_1.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_partial_solve_wit_2_pure : mpn_copyi_partial_solve_wit_2_pure.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_partial_solve_wit_2 : mpn_copyi_partial_solve_wit_2.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_partial_solve_wit_3 : mpn_copyi_partial_solve_wit_3.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_partial_solve_wit_4 : mpn_copyi_partial_solve_wit_4.
+Proof. Admitted. 
+
+Lemma proof_of_mpn_copyi_partial_solve_wit_5 : mpn_copyi_partial_solve_wit_5.
+Proof. Admitted. 
+
diff --git a/projects/lib/gmp_proof_manual.v b/projects/lib/gmp_proof_manual.v
new file mode 100644
index 0000000..5fbd764
--- /dev/null
+++ b/projects/lib/gmp_proof_manual.v
@@ -0,0 +1,152 @@
+Require Import Coq.ZArith.ZArith.
+Require Import Coq.Bool.Bool.
+Require Import Coq.Strings.String.
+Require Import Coq.Lists.List.
+Require Import Coq.Classes.RelationClasses.
+Require Import Coq.Classes.Morphisms.
+Require Import Coq.micromega.Psatz.
+Require Import Coq.Sorting.Permutation.
+From AUXLib Require Import int_auto Axioms Feq Idents List_lemma VMap.
+Require Import SetsClass.SetsClass. Import SetsNotation.
+From SimpleC.SL Require Import Mem SeparationLogic.
+From GmpLib Require Import gmp_goal.
+Require Import GmpLib.GmpNumber. Import Internal.
+Require Import GmpLib.GmpAux.
+Require Import Logic.LogicGenerator.demo932.Interface.
+Local Open Scope Z_scope.
+Local Open Scope sets.
+Local Open Scope string.
+Local Open Scope list.
+Import naive_C_Rules.
+Local Open Scope sac.
+
+Lemma proof_of_gmp_abs_return_wit_1_1 : gmp_abs_return_wit_1_1.
+Proof. pre_process. Qed.
+
+
+Lemma proof_of_gmp_abs_return_wit_1_2 : gmp_abs_return_wit_1_2.
+Proof. pre_process. Qed.
+
+Lemma proof_of_gmp_max_return_wit_1_1 : gmp_max_return_wit_1_1.
+Proof. 
+  pre_process.
+  entailer!.
+  unfold Zmax.
+  rewrite Z.max_r; lia.
+Qed.
+
+Lemma proof_of_gmp_max_return_wit_1_2 : gmp_max_return_wit_1_2.
+Proof.
+  pre_process.
+  entailer!.
+  unfold Zmax.
+  rewrite Z.max_l; lia.
+Qed.
+
+Lemma proof_of_gmp_cmp_return_wit_1_2 : gmp_cmp_return_wit_1_2.
+Proof.
+  pre_process.
+  repeat rewrite <-derivable1_orp_intros1.
+  entailer!.
+Qed.
+
+Lemma proof_of_mpn_copyi_entail_wit_1 : mpn_copyi_entail_wit_1.
+Proof.
+  pre_process.
+  Exists l2 l_2.
+  entailer!.
+  pose proof (Zlength_nonneg l_2).
+  lia.
+Qed.
+
+Lemma proof_of_mpn_copyi_entail_wit_2 : mpn_copyi_entail_wit_2.
+Proof.
+  pre_process.
+  Exists l2' l_3.
+  entailer!.
+  rewrite replace_Znth_app_r.
+  + rewrite Zlength_sublist0; [ | lia ].
+    assert (i - i = 0). { lia. }
+    rewrite H15; clear H15.
+    assert (replace_Znth 0 (Znth i l_3 0) (a :: nil) = sublist i (i + 1) l_3). {
+      unfold replace_Znth, Z.to_nat, replace_nth.
+      rewrite (sublist_single i l_3 0); [ reflexivity | ].
+      rewrite <-Zlength_correct; lia.
+    }
+    rewrite H15; clear H15.
+    rewrite replace_Znth_nothing.
+    - rewrite <-sublist_split; try lia; try reflexivity.
+      rewrite <-Zlength_correct; lia.
+    - pose proof (Zlength_sublist0 i l_3 ltac:(lia)).
+      lia.
+  + pose proof (Zlength_sublist0 i l_3); lia.
+Qed.
+
+Lemma proof_of_mpn_copyi_which_implies_wit_1 : mpn_copyi_which_implies_wit_1.
+Proof.
+  pre_process.
+  unfold mpd_store_Z.
+  Intros l.
+  Exists l.
+  unfold mpd_store_list.
+  entailer!.
+  subst.
+  entailer!.
+Qed.
+
+Lemma proof_of_mpn_copyi_which_implies_wit_2 : mpn_copyi_which_implies_wit_2.
+Proof.
+  pre_process.
+  pose proof (store_uint_array_divide d cap2 l2 0).
+  pose proof (Zlength_nonneg l2).
+  specialize (H0 ltac:(lia) ltac:(lia)).
+  destruct H0 as [H0 _].
+  simpl in H0.
+  entailer!.
+  rewrite (sublist_nil l2 0 0) in H0; [ | lia].
+  sep_apply H0.
+  entailer!.
+  unfold store_uint_array, store_uint_array_rec.
+  unfold store_array.
+  rewrite (sublist_self l2 cap2); [ | lia ].
+  assert (d + 0 = d). { lia. }
+  rewrite H2; clear H2.
+  assert (cap2 - 0 = cap2). { lia. }
+  rewrite H2; clear H2.
+  reflexivity.
+Qed.
+
+Lemma proof_of_mpn_copyi_which_implies_wit_3 : mpn_copyi_which_implies_wit_3.
+Proof.
+  pre_process.
+  destruct l'. {
+    unfold store_uint_array_rec.
+    simpl.
+    entailer!.
+  }
+  pose proof (store_uint_array_rec_cons d i cap2  z l' ltac:(lia)).
+  sep_apply H2.
+  Exists z l'.
+  entailer!.
+  assert (i = 0 \/ i > 0). { lia. }
+  destruct H3.
+  + subst.
+    unfold store_uint_array, store_array.
+    simpl.
+    entailer!.
+  + pose proof (Aux.store_uarray_rec_equals_store_uarray d 0 i (sublist 0 i l) ltac:(lia)).
+    destruct H4 as [_ H4].
+    assert (d + sizeof(UINT) * 0 = d). { lia. }
+    rewrite H5 in H4; clear H5.
+    assert (i - 0 = i). { lia. }
+    rewrite H5 in H4; clear H5.
+    sep_apply H4; clear H4.
+    pose proof (Aux.store_uarray_rec_equals_store_uarray d 0 (i + 1) (sublist 0 i l ++ z :: nil) ltac:(lia)).
+    destruct H4 as [H4 _].
+    assert (i + 1 - 0 = i + 1). { lia. }
+    rewrite H5 in H4; clear H5.
+    assert (d + sizeof(UINT) * 0 = d). { lia. }
+    rewrite H5 in H4; clear H5.
+    rewrite <-H4.
+    sep_apply store_uint_array_rec_tail_merge; [ reflexivity | lia ].
+Qed.
\ No newline at end of file
diff --git a/projects/mini-gmp.c b/projects/mini-gmp.c
index 3dc0c43..734d342 100755
--- a/projects/mini-gmp.c
+++ b/projects/mini-gmp.c
@@ -5,7 +5,7 @@
 
 int gmp_abs(int x)
 /*@
-  Require emp
+  Require INT_MIN < x && x <= INT_MAX
   Ensure __return == Zabs(x)
 */
 {
@@ -25,9 +25,10 @@ int gmp_cmp(int a, int b)
 /*@
   Require emp
   Ensure 
-    a > b && __return == 1 || 
+    emp * 
+    (a > b && __return == 1 || 
     a == b && __return == 0 ||
-    a < b && __return == -1
+    a < b && __return == -1)
 */
 {
   return (a > b) - (a < b);
@@ -39,25 +40,60 @@ int gmp_cmp(int a, int b)
 void
 mpn_copyi (unsigned int *d, unsigned int *s, int n)
 /*@
-  With val data cap1 cap2
+  With val l2 cap1 cap2
   Require
     mpd_store_Z(s, val, n, cap1) *
-    store_uint_array(d, cap2, data)
+    store_uint_array(d, cap2, l2) &&
+    Zlength(l2) == cap2 &&
+    cap2 >= n
   Ensure 
     mpd_store_Z(s, val, n, cap1) *
     mpd_store_Z(d, val, n, cap2)
 */
 {
-  /*
+  /*@
     mpd_store_Z(s, val, n, cap1)
     which implies
     exists l,
-      store_uint_array(s, n, l) **
-      store_undef
+      n <= cap1 && 
+      Zlength(l) == n &&
+      cap1 <= 100000000 &&
+      store_uint_array(s, n, l) *
+      store_undef_uint_array_rec(s, n + 1, cap1) &&
+      list_store_Z(l, val)
+  */
+  /*@
+    store_uint_array(d, cap2, l2) && Zlength(l2) == cap2
+    which implies
+    store_uint_array_rec(d, 0, cap2, l2) * store_uint_array(d, 0, nil) &&
+    Zlength(l2) == cap2
   */
   int i;
-  for (i = 0; i < n; i++)
-    d[i] = s[i];
+    /*@ Inv
+    exists l l',
+    0 <= i && i <= n && Zlength(l) == n && 
+    list_store_Z(l, val) && n <= cap1 && 
+    store_uint_array(s, n, l) *
+    store_undef_uint_array_rec(s, n + 1, cap1) * 
+    store_uint_array(d, i, sublist(0, i, l)) * 
+    store_uint_array_rec(d, i, cap2, l')
+  */
+  for (i = 0; i < n; i++) {
+      /*@
+        Given l l'
+      */
+      /*@
+        0 <= i && i < n && n <= cap2 &&
+        store_uint_array_rec(d, i, cap2, l') *
+        store_uint_array(d, i, sublist(0, i, l))
+        which implies
+        exists a l2',
+        l' == cons(a, l2') && i < n && n <= cap2 &&
+        store_uint_array_rec(d, i + 1, cap2, l2') *
+        store_uint_array(d, i + 1, app(sublist(0, i, l), cons(a, nil)))
+      */
+      d[i] = s[i];
+  }
 }
 
 /* 大于返回1，小于返回-1，等于返回0 */
@@ -66,19 +102,53 @@ mpn_cmp (unsigned int *ap, unsigned int *bp, int n)
 /*@
   With cap1 cap2 val1 val2
   Require
-    mpd_store_Z(ap, val1, n, cap1) **
-    mpd_store_Z(bp, val2, n, cap2)
+    mpd_store_Z(ap, val1, n, cap1) *
+    mpd_store_Z(bp, val2, n, cap2) &&
+    n <= cap1 && n <= cap2
   Ensure
     val1 > val2 && __return == 1 ||
     val1 == val2 && __return == 0 ||
     val1 < val2 && __return == -1
 */
 {
+  /*@
+    mpd_store_Z(ap, val1, n, cap1) * mpd_store_Z(bp, val2, n, cap2)
+    which implies
+    exists l1 l2,
+    mpd_store_list(ap, l1, cap1) * mpd_store_list(bp, l2, cap2) &&
+    list_store_Z(l1, val1) && list_store_Z(l2, val2) &&
+    n == Zlength(l1) && n == Zlength(l2)
+  */
+  /*@
+    Given l1 l2
+  */
+  --n;
+  /*@Inv
+    mpd_store_list(ap, l1, cap1) * mpd_store_list(bp, l2, cap2) &&
+    list_store_Z(l1, val1) && list_store_Z(l2, val2) &&
+    n@pre == Zlength(l1) && n@pre == Zlength(l2) &&
+    sublist(n, n@pre, l1) == sublist(n, n@pre, l2)
+  */
+  while (n >= 0)
+    {
+      /*@
+        mpd_store_list(ap, l1, cap1) * mpd_store_list(bp, l2, cap2)
+        which implies
+        store_uint_array(ap, n, l1) * store_uint_array(bp, n, l2) *
+        store_undef_uint_array(ap, n + 1, cap1) * store_uint_array(bp, n + 1, cap2) &&
+      */
+      if (ap[n] != bp[n])
+	      return ap[n] > bp[n] ? 1 : -1;
+      --n;
+    }
+  // Note: The parser cannot parse "--n" in loop so we paraphrased it.
+  /*
   while (--n >= 0)
     {
       if (ap[n] != bp[n])
 	return ap[n] > bp[n] ? 1 : -1;
     }
+  */
   return 0;
 }
 
diff --git a/projects/mini-gmp.h b/projects/mini-gmp.h
index 4b50d45..b5a22b5 100755
--- a/projects/mini-gmp.h
+++ b/projects/mini-gmp.h
@@ -36,7 +36,7 @@ gmp_free_limbs (unsigned int *old, int size);
 
 void mpn_copyi (unsigned int *d, unsigned int *s, int n);
 
-int mpn_cmp (unsigned int *, unsigned int *, int);
+int mpn_cmp (unsigned int *ap, unsigned int *bp, int n);
 
 unsigned int mpn_add_1 (unsigned int *, unsigned int *, int, unsigned int);
 unsigned int mpn_add_n (unsigned int *, unsigned int *, unsigned int *, int);
@@ -59,7 +59,9 @@ void mpz_sub (mpz_t, const mpz_t, const mpz_t);
 void mpz_set (mpz_t, const mpz_t);
 
 /*@ 
-  Extern Coq (Zabs: Z -> Z) 
-             (Zmax: Z -> Z -> Z)
-             (mpd_store_Z: Z -> Z -> Z -> Z -> Assertion)
+  Extern Coq (Zabs : Z -> Z) 
+             (Zmax : Z -> Z -> Z)
+             (mpd_store_Z : Z -> Z -> Z -> Z -> Assertion)
+             (mpd_store_list : Z -> list Z -> Z -> Assertion)
+             (list_store_Z : list Z -> Z -> Prop)
 */
\ No newline at end of file
diff --git a/projects/uint_array.strategies b/projects/uint_array.strategies
index a8e3822..00feb3f 100644
--- a/projects/uint_array.strategies
+++ b/projects/uint_array.strategies
@@ -9,7 +9,7 @@
 id : 1
 priority : core(1)
 left : store_uint_array(?p, ?n, ?l) at 0
-right : data_at(?p + (?i * sizeof(I32)), I32, ?v) at 1
+right : data_at(?p + (?i * sizeof(U32)), U32, ?v) at 1
 check : infer(0 <= i);
         infer(i < n);
 action : right_erase(1);
@@ -20,7 +20,7 @@ action : right_erase(1);
 id : 2
 priority : post(1)
 left : store_uint_array_missing_i_rec(?p, ?i, 0, ?n, ?l) at 0
-       data_at(p + i * sizeof(I32), I32, l[i]) at 1
+       data_at(p + i * sizeof(U32), U32, l[i]) at 1
 check : infer(0 <= i);
         infer(i < n);
 action : left_erase(1);
@@ -30,7 +30,7 @@ action : left_erase(1);
 id : 3
 priority : post(3)
 left : store_uint_array_missing_i_rec(?p, ?i, 0, ?n, ?l) at 0
-       data_at(p + i * sizeof(I32), I32, ?v) at 1
+       data_at(p + i * sizeof(U32), U32, ?v) at 1
 check : infer(0 <= i);
         infer(i < n);
 action : left_erase(1);
@@ -65,7 +65,7 @@ action : right_erase(1);
 id : 7
 priority : core(1)
 left : store_uint_array_rec(?p, ?x, ?y, ?l) at 0
-right : data_at(?p + (?i * sizeof(I32)), I32, ?v) at 1
+right : data_at(?p + (?i * sizeof(U32)), U32, ?v) at 1
 check : infer(x <= i);
         infer(i < y);
 action : right_erase(1);
@@ -108,7 +108,7 @@ action : right_erase(0);
 id : 11
 priority : post(1)
 left : store_uint_array_missing_i_rec(?p, ?i, ?x, ?y, ?l) at 0
-       data_at(p + ?i * sizeof(I32), I32, l[?i - ?x]) at 1
+       data_at(p + ?i * sizeof(U32), U32, l[?i - ?x]) at 1
 check : infer(x <= i);
         infer(i < y);
 action : left_erase(1);
@@ -118,7 +118,7 @@ action : left_erase(1);
 id : 12
 priority : post(4)
 left : store_uint_array_missing_i_rec(?p, ?i, ?x, ?y, ?l) at 0
-       data_at(p + ?i * sizeof(I32), I32, ?v) at 1
+       data_at(p + ?i * sizeof(U32), U32, ?v) at 1
 check : infer(x <= i);
         infer(i < y);
 action : left_erase(1);