diff --git a/README.md b/README.md
index 828ead055b..113e547a75 100644
--- a/README.md
+++ b/README.md
@@ -166,6 +166,11 @@ Please follow the below steps for Windows:
   ./run_tests.py
   ```
 
+- Update test references:
+  ```
+  ./run_tests.py -u
+  ```
+
 - Run integration tests:
 
   ```bash
diff --git a/expr b/expr
new file mode 100755
index 0000000000..82c85f86ee
Binary files /dev/null and b/expr differ
diff --git a/integration_tests/elemental_01.py b/integration_tests/elemental_01.py
index 4925fc6165..0a2787c7ed 100644
--- a/integration_tests/elemental_01.py
+++ b/integration_tests/elemental_01.py
@@ -103,17 +103,17 @@ def elemental_sin():
 
     verify1d(array1d, sin1d, 256)
 
-    arraynd: f64[256, 64, 16] = empty((256, 64, 16), dtype=float64)
-    sinnd: f64[256, 64, 16] = empty((256, 64, 16), dtype=float64)
+    arraynd: f64[200, 64, 16] = empty((200, 64, 16), dtype=float64)
+    sinnd: f64[200, 64, 16] = empty((200, 64, 16), dtype=float64)
 
-    for i in range(256):
+    for i in range(200):
         for j in range(64):
             for k in range(16):
                 arraynd[i, j, k] = float(i + j + k)
 
     sinnd = sin(arraynd)**2.0
 
-    verifynd(arraynd, sinnd, 256, 64, 16)
+    verifynd(arraynd, sinnd, 200, 64, 16)
 
 def elemental_cos():
     i: i32
@@ -162,4 +162,4 @@ def elemental_trig_identity():
 elemental_cos()
 elemental_trig_identity()
 elemental_sum()
-elemental_mul()
+elemental_mul()
\ No newline at end of file
diff --git a/tests/reference/asr-elemental_01-b58df26.json b/tests/reference/asr-elemental_01-b58df26.json
index c3766a88e8..92cd7cbd7e 100644
--- a/tests/reference/asr-elemental_01-b58df26.json
+++ b/tests/reference/asr-elemental_01-b58df26.json
@@ -2,11 +2,11 @@
     "basename": "asr-elemental_01-b58df26",
     "cmd": "lpython --show-asr --no-color {infile} -o {outfile}",
     "infile": "tests/../integration_tests/elemental_01.py",
-    "infile_hash": "1d1eb8ce26df5817c1e474e4f69b0b96e53df362a31f1b722efaadf0",
+    "infile_hash": "e96eed9469877faf7f0b6ddb472d3df5fd0270d0528d0334b1751783",
     "outfile": null,
     "outfile_hash": null,
     "stdout": "asr-elemental_01-b58df26.stdout",
-    "stdout_hash": "f6657ff256291caa10a0681ae7c5ad89f5c103725e44318d42b1445e",
+    "stdout_hash": "11322144ccc20362db9bf290de89fdbaaa0436821aa5377f20218dae",
     "stderr": null,
     "stderr_hash": null,
     "returncode": 0
diff --git a/tests/reference/asr-elemental_01-b58df26.stdout b/tests/reference/asr-elemental_01-b58df26.stdout
index e6eadff8ec..11c5c55676 100644
--- a/tests/reference/asr-elemental_01-b58df26.stdout
+++ b/tests/reference/asr-elemental_01-b58df26.stdout
@@ -741,7 +741,7 @@
                                                     (Array
                                                         (Real 8)
                                                         [((IntegerConstant 0 (Integer 4))
-                                                        (IntegerConstant 256 (Integer 4)))
+                                                        (IntegerConstant 200 (Integer 4)))
                                                         ((IntegerConstant 0 (Integer 4))
                                                         (IntegerConstant 64 (Integer 4)))
                                                         ((IntegerConstant 0 (Integer 4))
@@ -855,7 +855,7 @@
                                                     (Array
                                                         (Real 8)
                                                         [((IntegerConstant 0 (Integer 4))
-                                                        (IntegerConstant 256 (Integer 4)))
+                                                        (IntegerConstant 200 (Integer 4)))
                                                         ((IntegerConstant 0 (Integer 4))
                                                         (IntegerConstant 64 (Integer 4)))
                                                         ((IntegerConstant 0 (Integer 4))
@@ -1012,7 +1012,7 @@
                                             (Array
                                                 (Real 8)
                                                 [((IntegerConstant 0 (Integer 4))
-                                                (IntegerConstant 256 (Integer 4)))
+                                                (IntegerConstant 200 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
                                                 (IntegerConstant 64 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
@@ -1030,7 +1030,7 @@
                                             (Array
                                                 (Real 8)
                                                 [((IntegerConstant 0 (Integer 4))
-                                                (IntegerConstant 256 (Integer 4)))
+                                                (IntegerConstant 200 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
                                                 (IntegerConstant 64 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
@@ -1046,11 +1046,11 @@
                                         ((Var 218 i)
                                         (IntegerConstant 0 (Integer 4))
                                         (IntegerBinOp
-                                            (IntegerConstant 256 (Integer 4))
+                                            (IntegerConstant 200 (Integer 4))
                                             Sub
                                             (IntegerConstant 1 (Integer 4))
                                             (Integer 4)
-                                            (IntegerConstant 255 (Integer 4))
+                                            (IntegerConstant 199 (Integer 4))
                                         )
                                         (IntegerConstant 1 (Integer 4)))
                                         [(DoLoop
@@ -1126,7 +1126,7 @@
                                                 (Array
                                                     (Real 8)
                                                     [((IntegerConstant 0 (Integer 4))
-                                                    (IntegerConstant 256 (Integer 4)))
+                                                    (IntegerConstant 200 (Integer 4)))
                                                     ((IntegerConstant 0 (Integer 4))
                                                     (IntegerConstant 64 (Integer 4)))
                                                     ((IntegerConstant 0 (Integer 4))
@@ -1144,7 +1144,7 @@
                                             (Array
                                                 (Real 8)
                                                 [((IntegerConstant 0 (Integer 4))
-                                                (IntegerConstant 256 (Integer 4)))
+                                                (IntegerConstant 200 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
                                                 (IntegerConstant 64 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
@@ -1165,7 +1165,7 @@
                                             (Array
                                                 (Real 8)
                                                 [((IntegerConstant 0 (Integer 4))
-                                                (IntegerConstant 256 (Integer 4)))
+                                                (IntegerConstant 200 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
                                                 (IntegerConstant 64 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
@@ -1181,7 +1181,7 @@
                                             (Array
                                                 (Real 8)
                                                 [((IntegerConstant 0 (Integer 4))
-                                                (IntegerConstant 256 (Integer 4)))
+                                                (IntegerConstant 200 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
                                                 (IntegerConstant 64 (Integer 4)))
                                                 ((IntegerConstant 0 (Integer 4))
@@ -1190,7 +1190,7 @@
                                             )
                                             ()
                                         ))
-                                        ((IntegerConstant 256 (Integer 4)))
+                                        ((IntegerConstant 200 (Integer 4)))
                                         ((IntegerConstant 64 (Integer 4)))
                                         ((IntegerConstant 16 (Integer 4)))]
                                         ()