diff --git a/deps/k_release b/deps/k_release
index f76dc70dd5..edec366f36 100644
--- a/deps/k_release
+++ b/deps/k_release
@@ -1 +1 @@
-7.1.64
+7.1.74
diff --git a/flake.lock b/flake.lock
index 731ec5836c..7875b4ed82 100644
--- a/flake.lock
+++ b/flake.lock
@@ -167,16 +167,16 @@
         "z3": "z3"
       },
       "locked": {
-        "lastModified": 1720572621,
-        "narHash": "sha256-/j0swzk75vBmtYE62t044W7tCRULxwYfygb+C01Ar9A=",
+        "lastModified": 1721316629,
+        "narHash": "sha256-Iq161QQX78LtJnDyOm2zv0c+leGBb/bo0laKsk86pUo=",
         "owner": "runtimeverification",
         "repo": "haskell-backend",
-        "rev": "3ecef6a3bf991a95ac3dba2900a721bbcd5f5ce7",
+        "rev": "8d61e69a3cc73ae15306775bb2e97ec31247690a",
         "type": "github"
       },
       "original": {
         "owner": "runtimeverification",
-        "ref": "v0.1.32",
+        "ref": "v0.1.46",
         "repo": "haskell-backend",
         "type": "github"
       }
@@ -220,16 +220,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1721183834,
-        "narHash": "sha256-HBLO4eWp/3jp42DeJHB1nnQAi/SSZfPeKwKIAGCMk+8=",
+        "lastModified": 1721707363,
+        "narHash": "sha256-Jb9Vg0aLFxTTgPDNaRDe5FEytaS+vpJQQiNZfgTKxCs=",
         "owner": "runtimeverification",
         "repo": "k",
-        "rev": "aaa06312c2390999dbff7122f6a4811acf5493dc",
+        "rev": "ad900804ace1cd53079b508aab590d2a4561b4e5",
         "type": "github"
       },
       "original": {
         "owner": "runtimeverification",
-        "ref": "v7.1.64",
+        "ref": "v7.1.74",
         "repo": "k",
         "type": "github"
       }
@@ -268,16 +268,16 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1720605767,
-        "narHash": "sha256-f2+y13P306W0Ws7gfjVkG4jytHqfSY0qAd4KeF/qZno=",
+        "lastModified": 1721505758,
+        "narHash": "sha256-eZak/AaPOGTeiihbDWRCe4SeQfC9br1GCynx1neIL/Q=",
         "owner": "runtimeverification",
         "repo": "llvm-backend",
-        "rev": "bd12ae4ace1f288b3b6236cc42f7004fe38e9965",
+        "rev": "548a54ccb12c9f3fff37914d46f0879a88f41590",
         "type": "github"
       },
       "original": {
         "owner": "runtimeverification",
-        "ref": "v0.1.56",
+        "ref": "v0.1.60",
         "repo": "llvm-backend",
         "type": "github"
       }
@@ -445,17 +445,17 @@
       },
       "locked": {
         "dir": "pyk",
-        "lastModified": 1721183834,
-        "narHash": "sha256-HBLO4eWp/3jp42DeJHB1nnQAi/SSZfPeKwKIAGCMk+8=",
+        "lastModified": 1721707363,
+        "narHash": "sha256-Jb9Vg0aLFxTTgPDNaRDe5FEytaS+vpJQQiNZfgTKxCs=",
         "owner": "runtimeverification",
         "repo": "k",
-        "rev": "aaa06312c2390999dbff7122f6a4811acf5493dc",
+        "rev": "ad900804ace1cd53079b508aab590d2a4561b4e5",
         "type": "github"
       },
       "original": {
         "dir": "pyk",
         "owner": "runtimeverification",
-        "ref": "v7.1.64",
+        "ref": "v7.1.74",
         "repo": "k",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 762fcbceff..aaf8daf39e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,11 +2,11 @@
   description = "A flake for the KEVM Semantics";
 
   inputs = {
-    k-framework.url = "github:runtimeverification/k/v7.1.64";
+    k-framework.url = "github:runtimeverification/k/v7.1.74";
     nixpkgs.follows = "k-framework/nixpkgs";
     flake-utils.follows = "k-framework/flake-utils";
     rv-utils.follows = "k-framework/rv-utils";
-    pyk.url = "github:runtimeverification/k/v7.1.64?dir=pyk";
+    pyk.url = "github:runtimeverification/k/v7.1.74?dir=pyk";
     nixpkgs-pyk.follows = "pyk/nixpkgs";
     poetry2nix.follows = "pyk/poetry2nix";
     blockchain-k-plugin = {
diff --git a/kevm-pyk/poetry.lock b/kevm-pyk/poetry.lock
index 85fc6cedfc..a6d35d56d9 100644
--- a/kevm-pyk/poetry.lock
+++ b/kevm-pyk/poetry.lock
@@ -390,13 +390,13 @@ pyreadline3 = {version = "*", markers = "sys_platform == \"win32\" and python_ve
 
 [[package]]
 name = "hypothesis"
-version = "6.108.2"
+version = "6.108.4"
 description = "A library for property-based testing"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "hypothesis-6.108.2-py3-none-any.whl", hash = "sha256:2341d21d0e956bad8bd6269aa7d4f3233507f3ed52380c60ceb2f8b71f87a8e5"},
-    {file = "hypothesis-6.108.2.tar.gz", hash = "sha256:62cf1c16bd98548b6a84007c5fb8cf6d9cb358dad870adb4f236c795ef162fdd"},
+    {file = "hypothesis-6.108.4-py3-none-any.whl", hash = "sha256:901b1883b51207c4c3ecbae506bc8b65d66569f9bc34e023df7d8a821eb495c1"},
+    {file = "hypothesis-6.108.4.tar.gz", hash = "sha256:bab99a308ea39be53882f1d89ab77db48e0c03b5c37fbedd2f59f9b656ada301"},
 ]
 
 [package.dependencies]
@@ -405,10 +405,10 @@ exceptiongroup = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
 sortedcontainers = ">=2.1.0,<3.0.0"
 
 [package.extras]
-all = ["backports.zoneinfo (>=0.2.1)", "black (>=19.10b0)", "click (>=7.0)", "crosshair-tool (>=0.0.61)", "django (>=3.2)", "dpcontracts (>=0.4)", "hypothesis-crosshair (>=0.0.7)", "lark (>=0.10.1)", "libcst (>=0.3.16)", "numpy (>=1.17.3)", "pandas (>=1.1)", "pytest (>=4.6)", "python-dateutil (>=1.4)", "pytz (>=2014.1)", "redis (>=3.0.0)", "rich (>=9.0.0)", "tzdata (>=2024.1)"]
+all = ["backports.zoneinfo (>=0.2.1)", "black (>=19.10b0)", "click (>=7.0)", "crosshair-tool (>=0.0.63)", "django (>=3.2)", "dpcontracts (>=0.4)", "hypothesis-crosshair (>=0.0.9)", "lark (>=0.10.1)", "libcst (>=0.3.16)", "numpy (>=1.17.3)", "pandas (>=1.1)", "pytest (>=4.6)", "python-dateutil (>=1.4)", "pytz (>=2014.1)", "redis (>=3.0.0)", "rich (>=9.0.0)", "tzdata (>=2024.1)"]
 cli = ["black (>=19.10b0)", "click (>=7.0)", "rich (>=9.0.0)"]
 codemods = ["libcst (>=0.3.16)"]
-crosshair = ["crosshair-tool (>=0.0.61)", "hypothesis-crosshair (>=0.0.7)"]
+crosshair = ["crosshair-tool (>=0.0.63)", "hypothesis-crosshair (>=0.0.9)"]
 dateutil = ["python-dateutil (>=1.4)"]
 django = ["django (>=3.2)"]
 dpcontracts = ["dpcontracts (>=0.4)"]
@@ -481,13 +481,13 @@ colors = ["colorama (>=0.4.6)"]
 
 [[package]]
 name = "kframework"
-version = "7.1.64"
+version = "7.1.74"
 description = ""
 optional = false
 python-versions = "<4.0,>=3.10"
 files = [
-    {file = "kframework-7.1.64-py3-none-any.whl", hash = "sha256:dba99f7175db1a25627b69672b2999c9243b27ec4ef18d57d5097ff6eb90402f"},
-    {file = "kframework-7.1.64.tar.gz", hash = "sha256:4de102f8544b73c4a3d602aa903422226af5917ca8afe0f220e21a107cb031a6"},
+    {file = "kframework-7.1.74-py3-none-any.whl", hash = "sha256:14a193eb676d863ec86c36d7e0ee594172e050f5d0946566afe797efc9daa6fe"},
+    {file = "kframework-7.1.74.tar.gz", hash = "sha256:829534b868ccdd9a784ad072e48fbbb6e4f6039bcc90c6862c9b90fe0e81ebef"},
 ]
 
 [package.dependencies]
@@ -616,44 +616,44 @@ dill = ">=0.3.8"
 
 [[package]]
 name = "mypy"
-version = "1.10.1"
+version = "1.11.0"
 description = "Optional static typing for Python"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "mypy-1.10.1-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:e36f229acfe250dc660790840916eb49726c928e8ce10fbdf90715090fe4ae02"},
-    {file = "mypy-1.10.1-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:51a46974340baaa4145363b9e051812a2446cf583dfaeba124af966fa44593f7"},
-    {file = "mypy-1.10.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:901c89c2d67bba57aaaca91ccdb659aa3a312de67f23b9dfb059727cce2e2e0a"},
-    {file = "mypy-1.10.1-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:0cd62192a4a32b77ceb31272d9e74d23cd88c8060c34d1d3622db3267679a5d9"},
-    {file = "mypy-1.10.1-cp310-cp310-win_amd64.whl", hash = "sha256:a2cbc68cb9e943ac0814c13e2452d2046c2f2b23ff0278e26599224cf164e78d"},
-    {file = "mypy-1.10.1-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:bd6f629b67bb43dc0d9211ee98b96d8dabc97b1ad38b9b25f5e4c4d7569a0c6a"},
-    {file = "mypy-1.10.1-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:a1bbb3a6f5ff319d2b9d40b4080d46cd639abe3516d5a62c070cf0114a457d84"},
-    {file = "mypy-1.10.1-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:b8edd4e9bbbc9d7b79502eb9592cab808585516ae1bcc1446eb9122656c6066f"},
-    {file = "mypy-1.10.1-cp311-cp311-musllinux_1_1_x86_64.whl", hash = "sha256:6166a88b15f1759f94a46fa474c7b1b05d134b1b61fca627dd7335454cc9aa6b"},
-    {file = "mypy-1.10.1-cp311-cp311-win_amd64.whl", hash = "sha256:5bb9cd11c01c8606a9d0b83ffa91d0b236a0e91bc4126d9ba9ce62906ada868e"},
-    {file = "mypy-1.10.1-cp312-cp312-macosx_10_9_x86_64.whl", hash = "sha256:d8681909f7b44d0b7b86e653ca152d6dff0eb5eb41694e163c6092124f8246d7"},
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+    {file = "mypy-1.11.0-cp38-cp38-win_amd64.whl", hash = "sha256:dbe286303241fea8c2ea5466f6e0e6a046a135a7e7609167b07fd4e7baf151bf"},
+    {file = "mypy-1.11.0-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:104e9c1620c2675420abd1f6c44bab7dd33cc85aea751c985006e83dcd001095"},
+    {file = "mypy-1.11.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:f006e955718ecd8d159cee9932b64fba8f86ee6f7728ca3ac66c3a54b0062abe"},
+    {file = "mypy-1.11.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:becc9111ca572b04e7e77131bc708480cc88a911adf3d0239f974c034b78085c"},
+    {file = "mypy-1.11.0-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:6801319fe76c3f3a3833f2b5af7bd2c17bb93c00026a2a1b924e6762f5b19e13"},
+    {file = "mypy-1.11.0-cp39-cp39-win_amd64.whl", hash = "sha256:c1a184c64521dc549324ec6ef7cbaa6b351912be9cb5edb803c2808a0d7e85ac"},
+    {file = "mypy-1.11.0-py3-none-any.whl", hash = "sha256:56913ec8c7638b0091ef4da6fcc9136896914a9d60d54670a75880c3e5b99ace"},
+    {file = "mypy-1.11.0.tar.gz", hash = "sha256:93743608c7348772fdc717af4aeee1997293a1ad04bc0ea6efa15bf65385c538"},
 ]
 
 [package.dependencies]
 mypy-extensions = ">=1.0.0"
 tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
-typing-extensions = ">=4.1.0"
+typing-extensions = ">=4.6.0"
 
 [package.extras]
 dmypy = ["psutil (>=4.0)"]
@@ -1015,18 +1015,19 @@ jupyter = ["ipywidgets (>=7.5.1,<9)"]
 
 [[package]]
 name = "setuptools"
-version = "70.3.0"
+version = "71.1.0"
 description = "Easily download, build, install, upgrade, and uninstall Python packages"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "setuptools-70.3.0-py3-none-any.whl", hash = "sha256:fe384da74336c398e0d956d1cae0669bc02eed936cdb1d49b57de1990dc11ffc"},
-    {file = "setuptools-70.3.0.tar.gz", hash = "sha256:f171bab1dfbc86b132997f26a119f6056a57950d058587841a0082e8830f9dc5"},
+    {file = "setuptools-71.1.0-py3-none-any.whl", hash = "sha256:33874fdc59b3188304b2e7c80d9029097ea31627180896fb549c578ceb8a0855"},
+    {file = "setuptools-71.1.0.tar.gz", hash = "sha256:032d42ee9fb536e33087fb66cac5f840eb9391ed05637b3f2a76a7c8fb477936"},
 ]
 
 [package.extras]
+core = ["importlib-metadata (>=6)", "importlib-resources (>=5.10.2)", "jaraco.text (>=3.7)", "more-itertools (>=8.8)", "ordered-set (>=3.1.1)", "packaging (>=24)", "platformdirs (>=2.6.2)", "tomli (>=2.0.1)", "wheel (>=0.43.0)"]
 doc = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "pygments-github-lexers (==0.0.5)", "pyproject-hooks (!=1.1)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-favicon", "sphinx-inline-tabs", "sphinx-lint", "sphinx-notfound-page (>=1,<2)", "sphinx-reredirects", "sphinxcontrib-towncrier"]
-test = ["build[virtualenv] (>=1.0.3)", "filelock (>=3.4.0)", "importlib-metadata", "ini2toml[lite] (>=0.14)", "jaraco.develop (>=7.21)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "jaraco.test", "mypy (==1.10.0)", "packaging (>=23.2)", "pip (>=19.1)", "pyproject-hooks (!=1.1)", "pytest (>=6,!=8.1.*)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-home (>=0.5)", "pytest-mypy", "pytest-perf", "pytest-ruff (>=0.3.2)", "pytest-subprocess", "pytest-timeout", "pytest-xdist (>=3)", "tomli", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
+test = ["build[virtualenv] (>=1.0.3)", "filelock (>=3.4.0)", "importlib-metadata", "ini2toml[lite] (>=0.14)", "jaraco.develop (>=7.21)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "jaraco.test", "mypy (==1.11.*)", "packaging (>=23.2)", "pip (>=19.1)", "pyproject-hooks (!=1.1)", "pytest (>=6,!=8.1.*)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-home (>=0.5)", "pytest-mypy", "pytest-perf", "pytest-ruff (<0.4)", "pytest-ruff (>=0.2.1)", "pytest-ruff (>=0.3.2)", "pytest-subprocess", "pytest-timeout", "pytest-xdist (>=3)", "tomli", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
 
 [[package]]
 name = "sortedcontainers"
@@ -1157,4 +1158,4 @@ test = ["big-O", "importlib-resources", "jaraco.functools", "jaraco.itertools",
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "4af4f9c837029876503d6fddc29f4e2cb828e50cbba178d37ac9af04f4938a2f"
+content-hash = "0c38c89a21908c60a0281ff72f4a34ffc3443f66ed5689c110f3d18648c9e380"
diff --git a/kevm-pyk/pyproject.toml b/kevm-pyk/pyproject.toml
index 381426b601..c7fcb21d72 100644
--- a/kevm-pyk/pyproject.toml
+++ b/kevm-pyk/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "kevm-pyk"
-version = "1.0.647"
+version = "1.0.648"
 description = ""
 authors = [
     "Runtime Verification, Inc. <contact@runtimeverification.com>",
@@ -13,7 +13,7 @@ authors = [
 [tool.poetry.dependencies]
 python = "^3.10"
 pathos = "*"
-kframework = "7.1.64"
+kframework = "7.1.74"
 tomlkit = "^0.11.6"
 
 [tool.poetry.group.dev.dependencies]
diff --git a/kevm-pyk/src/kevm_pyk/__init__.py b/kevm-pyk/src/kevm_pyk/__init__.py
index 6ef4704288..ed3cc2f3f0 100644
--- a/kevm-pyk/src/kevm_pyk/__init__.py
+++ b/kevm-pyk/src/kevm_pyk/__init__.py
@@ -5,4 +5,4 @@
 if TYPE_CHECKING:
     from typing import Final
 
-VERSION: Final = '1.0.647'
+VERSION: Final = '1.0.648'
diff --git a/kevm-pyk/src/kevm_pyk/kproj/evm-semantics/lemmas/bytes-simplification.k b/kevm-pyk/src/kevm_pyk/kproj/evm-semantics/lemmas/bytes-simplification.k
index cc53b5cfbf..2418b16b33 100644
--- a/kevm-pyk/src/kevm_pyk/kproj/evm-semantics/lemmas/bytes-simplification.k
+++ b/kevm-pyk/src/kevm_pyk/kproj/evm-semantics/lemmas/bytes-simplification.k
@@ -36,6 +36,8 @@ module BYTES-SIMPLIFICATION [symbolic]
 
     // #buf
 
+    rule [buf-empty]: #buf(N:Int, _) => b"" requires N ==Int 0 [simplification]
+
     rule [buf-inject-k]:
       #buf(W:Int, X:Int) ==K #buf(W:Int, Y:Int) => X ==Int Y
       requires 0 <=Int W
diff --git a/package/version b/package/version
index 452644bd0f..fbd6c7554f 100644
--- a/package/version
+++ b/package/version
@@ -1 +1 @@
-1.0.647
+1.0.648