diff --git a/.github/workflows/gwos-evm-fuzz.yml b/.github/workflows/gwos-evm-fuzz.yml
index b63f560c5..0f96fd748 100644
--- a/.github/workflows/gwos-evm-fuzz.yml
+++ b/.github/workflows/gwos-evm-fuzz.yml
@@ -31,9 +31,9 @@ jobs:
         key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}
     - name: Install moleculec
       run: |
-        export MOLC_VERSION=$(cat deps/godwoken-scripts/c/Makefile | egrep "MOLC_VERSION :=" | awk '{print $3}')
+        export MOLC_VERSION=$(cat ../gwos/c/Makefile | egrep "MOLC_VERSION :=" | awk '{print $3}')
         test "$(moleculec --version)" = "Moleculec $MOLC_VERSION" \
-        || CARGO_TARGET_DIR=target/ cargo install moleculec --version $MOLC_VERSION --force
+        || CARGO_TARGET_DIR=target/ cargo install moleculec --version $MOLC_VERSION
     - name: Cache LLVM and Clang
       id: cache-llvm
       uses: actions/cache@v3
@@ -47,7 +47,7 @@ jobs:
       uses: actions/cache@v3
       with:
         path: |
-          polyjuice-tests/fuzz/corpus-cache
+          gwos-evm/polyjuice-tests/fuzz/corpus-cache
         key: corpus-${{ env.DATETIME }}
         restore-keys: |
           corpus
@@ -58,13 +58,6 @@ jobs:
         version: "11.0"
         cached: ${{ steps.cache-llvm.outputs.cache-hit }}
 
-    - name: test_rlp on x86 with sanitizers
-      working-directory: ./gwos-evm/polyjuice-tests/fuzz
-      run: make build/test_rlp && ./build/test_rlp
-    - name: test_contracts on x86 with sanitizers
-      working-directory: ./gwos-evm/polyjuice-tests/fuzz
-      run: make build/test_contracts && ./build/test_contracts
-
     - name: Set MAX_FUZZ_TIME for different branches
       run: |
         if [[ ${{ github.event_name == 'pull_request' }} ]]; then
@@ -80,8 +73,8 @@ jobs:
       run: |
         mkdir -p corpus-cache
         ls corpus-cache
-        make build/polyjuice_generator_fuzzer && \
-        ./build/polyjuice_generator_fuzzer corpus corpus-cache \
+        make build/fuzzer && \
+        ./build/fuzzer corpus corpus-cache \
           -max_total_time=$MAX_FUZZ_TIME -timeout=120 \
           -max_len=25000 -rss_limit_mb=0
       # Max data buffer size: 24KB < 25000 bytes
@@ -90,7 +83,7 @@ jobs:
       working-directory: gwos-evm/polyjuice-tests/fuzz
       run: |
         mkdir -p corpus-new
-        ./build/polyjuice_generator_fuzzer -merge=1 corpus-new corpus-cache corpus
+        ./build/fuzzer -merge=1 corpus-new corpus-cache corpus
         rm -rf corpus-cache
         mv corpus-new corpus-cache
 
diff --git a/Cargo.toml b/Cargo.toml
index 77617a314..0fd1e7e41 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,6 +35,7 @@ exclude = [
  # working on godwoken.
  "crates/autorocks",
  "gwos-evm/polyjuice-tests",
+ "gwos-evm/polyjuice-tests/fuzz2",
  "gwos/contracts",
 ]
 
diff --git a/crates/generator/src/syscalls/mod.rs b/crates/generator/src/syscalls/mod.rs
index bbafea088..323cb5853 100644
--- a/crates/generator/src/syscalls/mod.rs
+++ b/crates/generator/src/syscalls/mod.rs
@@ -35,7 +35,7 @@ use self::error_codes::{
     GW_SUDT_ERROR_UNPERMITTED_ADDRESS, SUCCESS,
 };
 
-mod bn;
+pub mod bn;
 pub mod error_codes;
 
 /// Max buffer size: 4MB
diff --git a/gwos-evm/c/polyjuice.h b/gwos-evm/c/polyjuice.h
index 99e90229f..b1bc112f2 100644
--- a/gwos-evm/c/polyjuice.h
+++ b/gwos-evm/c/polyjuice.h
@@ -996,6 +996,7 @@ int create_new_account(gw_context_t* ctx,
   uint8_t script_hash[32];
   blake2b_hash(script_hash, new_script_seg.ptr, new_script_seg.size);
   ret = ctx->sys_create(ctx, new_script_seg.ptr, new_script_seg.size, &new_account_id);
+  free(new_script_seg.ptr);
   if (ret != 0) {
     debug_print_int("sys_create error", ret);
 
@@ -1005,7 +1006,6 @@ int create_new_account(gw_context_t* ctx,
       return ret;
     }
   }
-  free(new_script_seg.ptr);
   *to_id = new_account_id;
   memcpy((uint8_t *)msg->destination.bytes, eth_addr, 20);
   debug_print_int(">> new to id", *to_id);
@@ -1152,6 +1152,7 @@ int handle_native_token_transfer(gw_context_t* ctx, uint32_t from_id,
     uint32_t new_account_id;
     ret = ctx->sys_create(ctx, new_script_seg.ptr, new_script_seg.size,
                           &new_account_id);
+    free(new_script_seg.ptr);
     if (ret != 0) {
       ckb_debug("[handle_native_token_transfer] create new account failed.");
       return ret;
diff --git a/gwos-evm/polyjuice-tests/fuzz/.gitignore b/gwos-evm/polyjuice-tests/fuzz/.gitignore
deleted file mode 100644
index 1fab0f908..000000000
--- a/gwos-evm/polyjuice-tests/fuzz/.gitignore
+++ /dev/null
@@ -1,11 +0,0 @@
-/build*/
-
-target/
-artifacts/
-
-coverage/
-/corpus/*
-!/corpus/regression/
-!/corpus/merged/
-
-/*CORPUS*
diff --git a/gwos-evm/polyjuice-tests/fuzz/Makefile b/gwos-evm/polyjuice-tests/fuzz/Makefile
index a4ac10d02..cd4c0abe1 100644
--- a/gwos-evm/polyjuice-tests/fuzz/Makefile
+++ b/gwos-evm/polyjuice-tests/fuzz/Makefile
@@ -10,36 +10,40 @@ ifeq ($(OS),Unknown)
 endif
 
 NPROC?=4
-CC=clang
 CXX=clang++
+CC=clang
 LLVM_PROFDATA=llvm-profdata
 LLVM_COV=llvm-cov
 
 DEPS := ../../deps
+GW_SCRIPTS := ../../../gwos/c
 BUILD := build
 
 SECP_DIR := $(DEPS)/secp256k1-fix
 SECP256K1_SRC := $(SECP_DIR)/src/ecmult_static_pre_context.h
 
 CFLAGS_SECP := -isystem $(SECP_DIR)/src -isystem $(SECP_DIR)
-CFLAGS_CKB_STD = -I./ -I$(DEPS)/ckb-c-stdlib -I$(DEPS)/ckb-c-stdlib/molecule
+CFLAGS_CKB_STD = -I./ -I$(DEPS)/ckb-c-stdlib -I$(DEPS)/ckb-c-stdlib/molecule -Wno-incompatible-pointer-types
 CFLAGS_ETHASH := -I$(DEPS)/ethash/include -I$(DEPS)/ethash/lib/ethash -I$(DEPS)/ethash/lib/keccak -I$(DEPS)/ethash/lib/support
 CFLAGS_EVMONE := -I$(DEPS)/evmone/lib/evmone -I$(DEPS)/evmone/include -I$(DEPS)/evmone/evmc/include -I$(DEPS)/evmone/evmc/tools/
-CFLAGS_SMT := -I$(DEPS)/godwoken-scripts/c/deps/sparse-merkle-tree/c
-CFLAGS_GODWOKEN := -I$(DEPS)/godwoken-scripts/c
+CFLAGS_SMT := -I$(GW_SCRIPTS)/deps/sparse-merkle-tree/c
+CFLAGS_GODWOKEN := -I$(GW_SCRIPTS)
 CFLAGS_MBEDTLS := -I$(DEPS)/mbedtls/include
 CFLAGS_CRYPTO_ALGORITHMS := -I$(DEPS)/crypto-algorithms
 CFLAGS_INTX := -I$(DEPS)/intx/lib/intx -I$(DEPS)/intx/include
-CFLAGS := -Wall -O2 -I../../c -I../../c/ripemd160 $(CFLAGS_CKB_STD) $(CFLAGS_ETHASH) $(CFLAGS_EVMONE) $(CFLAGS_SMT) $(CFLAGS_GODWOKEN) $(CFLAGS_SECP) $(CFLAGS_MBEDTLS) $(CFLAGS_CRYPTO_ALGORITHMS) $(CFLAGS_INTX)
-CXXFLAGS := $(CFLAGS) -std=c++1z
-LDFLAGS := -Wl,--gc-sections
-SANITIZER_FLAGS := -g -O1 -fsanitize=address,undefined -Wno-incompatible-pointer-types
-LIMIT_ERROR := -ferror-limit=1
+CFLAGS_BN128 := -I$(DEPS)/bn128/include
+CFLAGS_GW_SIM := -Igw-syscall-simulator/include
+CFLAGS := -Wall -O3 -I../../c -I../../c/ripemd160 $(CFLAGS_CKB_STD) $(CFLAGS_ETHASH) $(CFLAGS_EVMONE) $(CFLAGS_SMT) $(CFLAGS_GODWOKEN) $(CFLAGS_SECP) $(CFLAGS_MBEDTLS) $(CFLAGS_CRYPTO_ALGORITHMS) $(CFLAGS_INTX) $(CFLAGS_BN128) $(CFLAGS_GW_SIM)
+CXXFLAGS := $(CFLAGS) -std=c++1z 
+LDFLAGS := -Wl,--gc-sections,-rpath,./gw-syscall-simulator/target/debug
+SANITIZER_FLAGS := -g -O1 -fsanitize=fuzzer,address,undefined,leak -Wno-incompatible-pointer-types
+LIMIT_ERROR := -ferror-limit=10
 
 # TODO: read PROTOCOL_VERSION from deps/godwoken-scripts/c/Makefile
 MOLC := moleculec
-MOLC_VERSION := $(shell cat $(DEPS)/godwoken-scripts/c/Makefile | egrep "MOLC_VERSION :=" | awk '{print $$3}')
-PROTOCOL_VERSION := $(shell cat $(DEPS)/godwoken-scripts/c/Makefile | egrep "PROTOCOL_VERSION :=" | awk '{print $$3}')
+
+MOLC_VERSION := $(shell cat $(GW_SCRIPTS)/Makefile | egrep "MOLC_VERSION :=" | awk '{print $$3}')
+PROTOCOL_VERSION := $(shell cat $(GW_SCRIPTS)/Makefile | egrep "PROTOCOL_VERSION :=" | awk '{print $$3}')
 PROTOCOL_SCHEMA_URL := https://raw.githubusercontent.com/nervosnetwork/godwoken/${PROTOCOL_VERSION}/crates/types/schemas
 
 ALL_OBJS := $(BUILD)/keccak.o $(BUILD)/keccakf800.o \
@@ -57,38 +61,19 @@ ifeq ($(OS),MacOS)
 	COVERAGE_FLAGS+=-Wl,-U,_LLVMFuzzerCustomMutator -Wl,-U,_LLVMFuzzerInitialize
 endif
 
-EXTERNAL_HEADERS := $(DEPS)/ckb-c-stdlib-simulator-only/ckb_consts.h
-
-#TODO: coverage
-all: generate-protocol build/polyjuice_generator_fuzzer
-
-build/polyjuice_generator_fuzzer: generate-protocol $(GENERATOR_DEPS)
-	$(CXX) $(CFLAGS) $(LDFLAGS) $(SANITIZER_FLAGS) $(LIMIT_ERROR) -fsanitize=fuzzer -Ibuild -o $@ polyjuice_generator_fuzzer.cc $(ALL_OBJS)
-build/polyjuice_generator_fuzzer_log: generate-protocol $(GENERATOR_DEPS)
-	$(CXX) $(CFLAGS) $(LDFLAGS) $(SANITIZER_FLAGS) $(LIMIT_ERROR) -fsanitize=fuzzer -Ibuild -o $@ polyjuice_generator_fuzzer.cc $(ALL_OBJS) -DPOLYJUICE_DEBUG_LOG
-
-###
-# TODO:
-show: $(COVERAGE_DIR)/fuzzer.profdata
-	$(LLVM_COV) show --instr-profile=$(COVERAGE_DIR)/fuzzer.profdata smt_coverage
-# TODO: report
-report: $(COVERAGE_DIR)/fuzzer.profdata coverage $(EXTERNAL_HEADERS)
-	$(LLVM_COV) report --show-functions --instr-profile=$(COVERAGE_DIR)/fuzzer.profdata smt_coverage $(EXTERNAL_HEADERS)
-# TODO:
-coverage: $(EXTERNAL_HEADERS)
-	clang $(COVERAGE_FLAGS) smt_coverage.c smt_fuzzer.c -o smt_coverage
+EXTERNAL_HEADERS := $(DEPS)/ckb-c-stdlib-simulator/ckb_consts.hckb-c-stdlib-simulator-only
 
-# start-fuzzer: fuzzer
-# 	./smt_fuzzer -max_len=800000 -workers=$(NPROC) -jobs=$(NPROC) corpus
+build-gw-syscall-simulator:
+	cd gw-syscall-simulator/ && cargo build
 
-# start-fuzzer2: fuzzer
-# 	./smt_fuzzer -max_len=800000 corpus
+build/fuzzer: generate-protocol $(GENERATOR_DEPS) build-gw-syscall-simulator
+	$(CXX) $(CFLAGS) $(LDFLAGS) $(SANITIZER_FLAGS) $(LIMIT_ERROR) -fprofile-instr-generate -fcoverage-mapping -L ./gw-syscall-simulator/target/debug -l gw_syscall_simulator -Ibuild -o $@ polyjuice_fuzzer.cc $(ALL_OBJS)
+build/fuzzer_log: generate-protocol $(GENERATOR_DEPS) build-gw-syscall-simulator
+	$(CXX) $(CFLAGS) $(LDFLAGS) $(SANITIZER_FLAGS) $(LIMIT_ERROR) -L ./gw-syscall-simulator/target/debug -l gw_syscall_simulator -Ibuild -o $@ polyjuice_fuzzer.cc $(ALL_OBJS) -DPOLYJUICE_DEBUG_LOG
 
 clean:
 	rm -rf $(BUILD)/*
 
-###
-
 build/generator: ../../c/generator.c $(GENERATOR_DEPS)
 	cd $(SECP_DIR) && (git apply workaround-fix-g++-linking.patch || true) && cd - # apply patch
 	$(CXX) $(SANITIZER_FLAGS) $(CFLAGS) $(LDFLAGS) -Ibuild -o $@ ../../c/generator.c $(ALL_OBJS)
@@ -170,7 +155,7 @@ build/platform_util.o: $(DEPS)/mbedtls/library/platform_util.c
 	$(CC) $(CFLAGS) $(LDFLAGS) -c -o $@ $<
 build/bignum.o: $(DEPS)/mbedtls/library/bignum.c
 	$(CC) $(CFLAGS) $(LDFLAGS) -c -o $@ $<
-	
+
 build/sha256.o: $(DEPS)/crypto-algorithms/sha256.c
 	$(CXX) $(CFLAGS) $(LDFLAGS) -c -o $@ $<
 
@@ -178,8 +163,8 @@ build/sha256.o: $(DEPS)/crypto-algorithms/sha256.c
 build/secp256k1_data_info.h: build/dump_secp256k1_data
 	$<
 build/dump_secp256k1_data: ../../c/dump_secp256k1_data.c $(SECP256K1_SRC)
-	mkdir -p build
-	gcc $(CFLAGS) -o $@ $<
+	#mkdir -p build
+	$(CC) $(CFLAGS) -o $@ $<
 $(SECP256K1_SRC):
 	cd $(SECP_DIR) && (git apply -R workaround-fix-g++-linking.patch || true) && \
 	chmod +x autogen.sh && ./autogen.sh && \
@@ -196,22 +181,8 @@ build/godwoken.h: build/godwoken.mol
 	${MOLC} --language c --schema-file $< > $@
 build/blockchain.mol:
 	mkdir -p build
-	curl -L -o $@ ${PROTOCOL_SCHEMA_URL}/blockchain.mol
+	cp ../../../gwos/crates/types/schemas/blockchain.mol $@
 build/godwoken.mol:
 	mkdir -p build
-	curl -L -o $@ ${PROTOCOL_SCHEMA_URL}/godwoken.mol
-
-
-#TODO:
-#%.h:
-#	ln -s $(CURDIR)/../$@ $(CURDIR)/$@
-
-# %.profraw: coverage
-# 	LLVM_PROFILE_FILE=$@ ./smt_coverage $(CORPUS_DIR)/*
-
-%.profdata: %.profraw
-	$(LLVM_PROFDATA) merge --sparse $< -o $@
-
-.PHONY: all fuzzer coverage report
+	cp ../../../gwos/crates/types/schemas/godwoken.mol $@
 
-.PRECIOUS: $(COVERAGE_DIR)/fuzzer.profraw $(COVERAGE_DIR)/fuzzer.profdata
diff --git a/gwos-evm/polyjuice-tests/fuzz/README.md b/gwos-evm/polyjuice-tests/fuzz/README.md
index 6040b114c..ba1e567ab 100644
--- a/gwos-evm/polyjuice-tests/fuzz/README.md
+++ b/gwos-evm/polyjuice-tests/fuzz/README.md
@@ -1,56 +1,62 @@
-# Polyjuice Fuzz Test
-
-[![FuzzTest](https://github.com/Flouse/godwoken-polyjuice/actions/workflows/fuzz.yml/badge.svg?branch=fuzz-v2)](https://github.com/Flouse/godwoken-polyjuice/actions/workflows/fuzz.yml)
-
-These two file were created to simulate `gw_syscalls`:
-- polyjuice-tests/fuzz/ckb_syscalls.h
-- polyjuice-tests/fuzz/mock_godwoken.hpp
-
-## Polyjuice Generator Fuzzer
-```bash
-make build/polyjuice_generator_fuzzer
-./build/polyjuice_generator_fuzzer corpus -max_total_time=6
-
-# or fuzzing in debug mode
-make build/polyjuice_generator_fuzzer_log
-./build/polyjuice_generator_fuzzer_log corpus -max_total_time=2
-```
-
-### General Algorithm
-```pseudo code
-// pseudo code
-Instrument program for code coverage
-load pre-defined transactions such as contracts deploying and then execute run_polyjuice()
-while(true) {
-  Choose random input from corpus
-  Mutate/populate input into transactions
-  Execute run_polyjuice() and collect coverage
-  If new coverage/paths are hit add it to corpus (corpus - directory with test-cases)
-}
-```
-
-## test_contracts on x86 with [sanitizers](https://github.com/google/sanitizers)
-```bash
-make build/test_contracts
-./build/test_contracts
-
-make build/test_rlp
-./build/test_rlp
-```
-
-## How to debug Polyjuice generator on x86?
-1. Compile Polyjuice generator on x86
-    ```bash
-    cd fuzz
-    make build/polyjuice_generator_fuzzer
-    ```
-2. Construct `pre_defined_test_case` in [polyjuice_generator_fuzzer.cc](./polyjuice_generator_fuzzer.cc)
-3. Run `build/polyjuice_generator_fuzzer_log` with GDB debugger, see: [launch.json](../../.vscode/launch.json) 
-
-## Coverage Report[WIP]
-TBD
-
-### Related materials
-- https://llvm.org/docs/LibFuzzer.html
-- [What makes a good fuzz target](https://github.com/google/fuzzing/blob/master/docs/good-fuzz-target.md)
-- [Clang's source-based code coverage](https://clang.llvm.org/docs/SourceBasedCodeCoverage.html)
+# Polyjuice fuzz testing
+
+## Build
+
+### 1. normal build
+
+```sh
+make build/fuzzer
+```
+
+### 2. or build with debug log
+
+```sh
+make build/fuzzer_log
+```
+
+## Run
+
+Simply just run with:
+```sh
+build/fuzzer
+```
+
+Or run `fuzzer_log`:
+```sh
+build/fuzzer_log
+```
+
+### Corpus and Seed
+
+Feeding fuzz testing with some predefined testcases: Seed. (Optional)
+And save to `corpus` folder if any good cases are generated during running.
+
+```sh
+build/fuzzer corpus seed
+```
+
+## Coverage Profile
+
+To genreate a coverage profile, we need to set `LLVM_PROFILE_FILE` and `max_total_time` first.
+
+```sh
+LLVM_PROFILE_FILE="build/fuzzer.profraw" build/fuzzer corpus -max_total_time=10
+```
+
+### Generate .profdata
+
+```sh
+llvm-profdata merge -sparse build/fuzzer.profraw -o build/fuzzer.profdata
+```
+
+### Show coverage in detail (Optional)
+
+```sh
+llvm-cov show build/fuzzer -instr-profile=build/fuzzer.profdata --show-branches=count --show-expansions > log
+```
+
+### Report
+
+```sh
+llvm-cov report ./build/fuzzer -instr-profile=build/fuzzer.profdata
+```
diff --git a/gwos-evm/polyjuice-tests/fuzz/ckb_syscalls.h b/gwos-evm/polyjuice-tests/fuzz/ckb_syscalls.h
index 366bdb145..9e099801d 100644
--- a/gwos-evm/polyjuice-tests/fuzz/ckb_syscalls.h
+++ b/gwos-evm/polyjuice-tests/fuzz/ckb_syscalls.h
@@ -5,150 +5,97 @@
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
-
-#include "ckb_consts.h"
-#include "secp256k1_data_info.h"
-
-size_t s_INPUT_SIZE = 0;
-uint8_t* s_INPUT_DATA = NULL;
-
-extern "C" int ckb_debug(const char*);
-static char debug_buf[64 * 1024];
-void dbg_print(const char* fmt, ...) {
-    va_list args;
-    va_start(args, fmt);
-    vsnprintf(debug_buf, sizeof(debug_buf), fmt, args);
-    va_end(args);
-    ckb_debug(debug_buf);
-}
-void dbg_print_h256(const uint8_t* h256_ptr) {
-  int offset = sprintf(debug_buf, "H256[");
-  for (size_t i = 0; i < 31; i++) {
-    offset += sprintf(debug_buf + offset, "%d, ", *(h256_ptr + i));
-  }
-  sprintf(debug_buf + offset, "%d]", *(h256_ptr + 31));
-  ckb_debug(debug_buf);
-}
-void dbg_print_hex(const uint8_t* ptr, size_t size) {
-  printf("0x");
-  for (size_t i = 0; i < size; i++) {
-    printf("%02x", ptr[i]);
-  }
-  printf("\n");
-}
-
-#ifndef POLYJUICE_DEBUG_LOG
-#undef dbg_print
-#undef dbg_print_h256
-#undef dbg_print_hex
-#define dbg_print(...) do {} while (0)
-#define dbg_print_h256(p) do {} while (0)
-#define dbg_print_hex(p) do {} while (0)
-#endif
-
-#define MOCK_SUCCESS 0
-
-int ckb_exit(int8_t code) {
-  printf("ckb_exit, code=%d\n", code);
-  exit(0);
-  return MOCK_SUCCESS;
-}
+#include <stdarg.h>
+
+#include "api.h"
+
+/* syscalls */
+/* Syscall account store / load / create */
+#define GW_SYS_CREATE 3100
+#define GW_SYS_STORE 3101
+#define GW_SYS_LOAD 3102
+#define GW_SYS_LOAD_ACCOUNT_SCRIPT 3105
+/* Syscall call / return */
+#define GW_SYS_SET_RETURN_DATA 3201
+/* Syscall data store / load */
+#define GW_SYS_STORE_DATA 3301
+#define GW_SYS_LOAD_DATA 3302
+/* Syscall load metadata structures */
+#define GW_SYS_LOAD_ROLLUP_CONFIG 3401
+#define GW_SYS_LOAD_TRANSACTION 3402
+#define GW_SYS_LOAD_BLOCKINFO 3403
+#define GW_SYS_GET_BLOCK_HASH 3404
+/* Syscall builtins */
+#define GW_SYS_PAY_FEE 3501
+#define GW_SYS_LOG 3502
+#define GW_SYS_RECOVER_ACCOUNT 3503
+/* Syscall for make use the Barreto-Naehrig (BN) curve construction */
+#define GW_SYS_BN_ADD 3601
+#define GW_SYS_BN_MUL 3602
+#define GW_SYS_BN_PAIRING 3603
+/* Syscall state */
+#define GW_SYS_SNAPSHOT 3701
+#define GW_SYS_REVERT 3702
+/* Syscall permissions */
+#define GW_SYS_CHECK_SUDT_ADDR_PERMISSION 3801
+
+#define GW_ERROR_NOT_FOUND 83
 
 // Mock implementation for the SYS_ckb_load_cell_data_as_code syscall in
 // _ckb_load_cell_code.
 #define syscall(n, a0, a1, a2, a3, a4, a5)                              \
   __internal_syscall(n, (long)(a0), (long)(a1), (long)(a2), (long)(a3), \
-                     (long)(a4), (long)(a5))
+      (long)(a4), (long)(a5))
 static int inline __internal_syscall(long n, long _a0, long _a1, long _a2,
-                                     long _a3, long _a4, long _a5);
+    long _a3, long _a4, long _a5);
 
 #ifdef GW_GENERATOR
 #include "generator_utils.h"
-#include "mock_godwoken.hpp"
 #endif
 
-static int inline __internal_syscall(long n, long _a0, long _a1, long _a2,
-                                     long _a3, long _a4, long _a5) {
+static int inline __internal_syscall(long n, long a0, long a1, long a2,
+    long a3, long a4, long a5) {
   switch (n) {
-    // mock syscall(GW_SYS_LOAD_TRANSACTION, addr, &inner_len, 0, 0, 0, 0)
-    case GW_SYS_LOAD_TRANSACTION: // Load Layer2 Transaction
-      return gw_load_transaction_from_raw_tx((uint8_t *)_a0, (uint64_t *)_a1);
-
-    // mock syscall(GW_SYS_LOAD, raw_key, value, 0, 0, 0, 0)
-    case GW_SYS_LOAD:
-      dbg_print("====== mock syscall(GW_SYS_LOAD) ======");
-      dbg_print("raw_key:");
-      dbg_print_h256((uint8_t*)_a0);
-      gw_sys_load((uint8_t *)_a0, (uint8_t *)_a1);
-      // always return 0, even the key(_a0) is not found
-      return MOCK_SUCCESS;
-
-    // mock syscall(GW_SYS_LOAD_DATA, data, &inner_len, offset, data_hash, 0, 0)
-    case GW_SYS_LOAD_DATA:
-      /* match ckb_secp256k1_data_hash, load secp256k1_data */
-      // TODO: move this to fuzz_init() step
-      if (0 == memcmp((uint8_t *)_a3, ckb_secp256k1_data_hash, 32)) {
-        FILE* stream = fopen("./build/secp256k1_data", "rb");
-        int ret = fread((uint8_t *)_a0, CKB_SECP256K1_DATA_SIZE, 1, stream);
-        fclose(stream);
-        stream = NULL;
-        if (ret != 1) { // ret = The total number of elements successfully read
-          return GW_ERROR_NOT_FOUND;
-        }
-        *(uint64_t *)_a1 = CKB_SECP256K1_DATA_SIZE;
-        return MOCK_SUCCESS;
-      }
-      return gw_sys_load_data((uint8_t *)_a0, (uint64_t *)_a1, _a2, (uint8_t *)_a3);
-
-    // mock syscall(GW_SYS_STORE_DATA, data_len, data, 0, 0, 0, 0)
-    case GW_SYS_STORE_DATA:
-      return gw_store_data(_a0, (uint8_t *)_a1);
-
-    // mock syscall(GW_SYS_SET_RETURN_DATA, *data, len, 0, 0, 0, 0)
-    case GW_SYS_SET_RETURN_DATA:
-      dbg_print("mock syscall(GW_SYS_SET_RETURN_DATA)");
-      gw_sys_set_return_data((uint8_t *)_a0, _a1);
-      return MOCK_SUCCESS;
-
-    // mock syscall(GW_SYS_GET_BLOCK_HASH, block_hash, number, 0, 0, 0, 0)
-    case GW_SYS_GET_BLOCK_HASH:
-      dbg_print("mock syscall(GW_SYS_GET_BLOCK_HASH");
-      gw_sys_get_block_hash((uint8_t *)_a0, _a1);
-      return MOCK_SUCCESS;
-
-    // mock syscall(GW_SYS_STORE, raw_key, value, 0, 0, 0, 0)
+    case GW_SYS_CREATE:
+      return gw_create((uint8_t*)a0, (uint64_t)a1, (uint32_t*)a2);
     case GW_SYS_STORE:
-      gw_update_raw((uint8_t *)_a0, (uint8_t *)_a1);
-      return MOCK_SUCCESS;
-
-    // mock syscall(GW_SYS_LOAD_BLOCKINFO, addr, &inner_len, 0, 0, 0, 0)
-    case GW_SYS_LOAD_BLOCKINFO:
-      return gw_sys_load_blockinfo((uint8_t *)_a0, (uint64_t *)_a1);
-
-    // mock syscall(GW_SYS_LOAD_ACCOUNT_SCRIPT, script, &inner_len, offset, account_id, 0, 0)
+      return gw_store((uint8_t*)a0, (uint8_t*)a1);
+    case GW_SYS_LOAD:
+      return gw_load((uint8_t*)a0, (uint8_t*)a1);
     case GW_SYS_LOAD_ACCOUNT_SCRIPT:
-      return gw_sys_load_account_script((uint8_t *)_a0, (uint64_t *)_a1, _a2, _a3);
-
-    // mock syscall(GW_SYS_LOAD_ROLLUP_CONFIG, addr, &inner_len, 0, 0, 0, 0)
+      return gw_load_account_script((void*)a0, (uint64_t*)a1, (uint64_t)a2, (uint32_t)a3);
+    case GW_SYS_SET_RETURN_DATA:
+      return gw_set_return_data((uint8_t*)a0, (uint64_t)a1);
+    case GW_SYS_STORE_DATA:
+      return gw_store_data((uint8_t*)a0, (uint64_t)a1);
+    case GW_SYS_LOAD_DATA:
+      return gw_load_data((void*)a0, (uint64_t*)a1, (uint64_t)a2, (uint8_t*)a3);
     case GW_SYS_LOAD_ROLLUP_CONFIG:
-      return gw_sys_load_rollup_config((uint8_t *)_a0, (uint64_t *)_a1);
-
-    // mock syscall(GW_SYS_CREATE, script, script_len, account_id, 0, 0, 0)
-    case GW_SYS_CREATE:
-      return gw_sys_create((uint8_t *)_a0, _a1, (uint32_t *)_a2);
-
-    // mock syscall(GW_SYS_LOG, account_id, service_flag, data_length, data, 0, 0)
-    case GW_SYS_LOG: // TODO: @see emit_evm_result_log
-      dbg_print("[GW_SYS_LOG] service_flag[%d] account[%d] ", (uint8_t)_a1, _a1);
-      return 0;
-
-    // mock syscall(GW_SYS_PAY_FEE, payer_addr, short_addr_len, sudt_id, &amount, 0, 0)
+      return gw_load_rollup_config((uint8_t*)a0, (uint64_t*)a1);
+    case GW_SYS_LOAD_TRANSACTION:
+      return gw_load_tx((void*)a0, (uint64_t*)a1);
+    case GW_SYS_LOAD_BLOCKINFO:
+      return gw_load_block_info((void*)a0, (uint64_t*)a1);
+    case GW_SYS_GET_BLOCK_HASH:
+      return gw_get_block_hash((uint8_t*)a0, (uint64_t)a1);
     case GW_SYS_PAY_FEE:
-      // TODO: payer: payer_addr[short_addr_len]
-      dbg_print("[mock SYS_PAY_FEE] sudt_id: %d, amount: %ld",
-                (uint32_t)_a2, *(uint128_t *)_a3);
       return 0;
-
+    case GW_SYS_LOG:
+      return gw_log((uint32_t)a0, (uint8_t)a1, (uint64_t)a2, (uint8_t*)a3);
+    case GW_SYS_BN_ADD:
+      return gw_bn_add((uint8_t*)a0, (uint64_t)a1, (uint64_t)a2, (uint8_t*)a3, (uint64_t)a4);
+    case GW_SYS_BN_MUL:
+      return gw_bn_mul((uint8_t*)a0, (uint64_t)a1, (uint64_t)a2, (uint8_t*)a3, (uint64_t)a4);
+    case GW_SYS_BN_PAIRING:
+      return gw_bn_pairing((uint8_t*)a0, (uint64_t)a1, (uint64_t)a2, (uint8_t*)a3, (uint64_t)a4);
+    case GW_SYS_SNAPSHOT:
+      return gw_snapshot((uint32_t*)a0);
+    case GW_SYS_REVERT:
+      return gw_revert((uint32_t)a0);
+    case GW_SYS_CHECK_SUDT_ADDR_PERMISSION:
+      return gw_check_sudt_addr_permission((uint8_t*)a0);
+    case GW_SYS_RECOVER_ACCOUNT:
+      return 0;
     default:
       return GW_ERROR_NOT_FOUND;
   }
diff --git a/gwos-evm/polyjuice-tests/fuzz/corpus/regression/ASAN-Deadlysignal-crash-6f3702a66330ed540a7d42305dbd4bd4d17a71ed b/gwos-evm/polyjuice-tests/fuzz/corpus/regression/ASAN-Deadlysignal-crash-6f3702a66330ed540a7d42305dbd4bd4d17a71ed
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+
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+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
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+ "either",
+ "libc",
+ "once_cell",
+]
+
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+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
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+name = "winapi-i686-pc-windows-gnu"
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+ "winapi",
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+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
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+
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+ "winapi",
+]
+
+[[package]]
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+checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
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+ "tap",
+]
+
+[[package]]
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+dependencies = [
+ "zstd-safe",
+]
+
+[[package]]
+name = "zstd-safe"
+version = "5.0.2+zstd.1.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d2a5585e04f9eea4b2a3d1eca508c4dee9592a89ef6f450c11719da0726f4db"
+dependencies = [
+ "libc",
+ "zstd-sys",
+]
+
+[[package]]
+name = "zstd-sys"
+version = "2.0.5+zstd.1.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "edc50ffce891ad571e9f9afe5039c4837bede781ac4bb13052ed7ae695518596"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+]
diff --git a/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/Cargo.toml b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/Cargo.toml
new file mode 100644
index 000000000..44e38267d
--- /dev/null
+++ b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/Cargo.toml
@@ -0,0 +1,24 @@
+[package]
+name = "gw-syscall-simulator"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["lib", "staticlib", "cdylib"]
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+gw-common    = { path = "../../../../gwos/crates/common/" }
+gw-types     = { path = "../../../../gwos/crates/types/" }
+gw-generator = { path = "../../../../crates/generator/" }
+gw-smt       = { path = "../../../../crates/smt/" }
+gw-store     = { path = "../../../../crates/store/" }
+gw-utils     = { path = "../../../../crates/utils/" }
+gw-config    = { path = "../../../../crates/config/", features = ["no-builtin"] }
+gw-traits    = { path = "../../../../crates/traits/" }
+
+ckb-vm = { version = "=0.22.0", default-features = false }
+ckb-vm-aot = { version = "=0.22.0" }
+once_cell = "1.14.0"
+anyhow = "1.0"
+hex = "0.4"
diff --git a/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/include/api.h b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/include/api.h
new file mode 100644
index 000000000..e31d55cc0
--- /dev/null
+++ b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/include/api.h
@@ -0,0 +1,52 @@
+#ifndef GW_SYSCALL_SIMULATOR_API_H_
+#define GW_SYSCALL_SIMULATOR_API_H_
+#include <cstdint>
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+/*=====ckb syscalls====*/
+int ckb_exit(int8_t code);
+int ckb_debug(const char* s);
+/*=====ckb syscalls====*/
+
+/*=====gw syscalls====*/
+int gw_load_rollup_config(uint8_t *addr, uint64_t *len);
+int gw_store(void *key, void *value);
+int gw_load(const uint8_t *key, uint8_t *value);
+int gw_set_return_data(const uint8_t *addr, uint64_t len);
+int gw_create(const uint8_t *script_addr, uint64_t script_len, uint32_t *account_id);
+int gw_load_tx(void *addr, uint64_t *len);
+int gw_load_block_info(void *addr, uint64_t *len);
+int gw_get_block_hash(uint8_t *addr, uint64_t number);
+int gw_store_data(const uint8_t *addr, uint64_t len);
+int gw_load_data(void *data, uint64_t *len, uint64_t offset, const uint8_t *data_hash);
+int gw_load_account_script(void *script, uint64_t *len, uint64_t offset, uint32_t account_id);
+int gw_pay_fee(uint8_t *reg_addr_buf, uint64_t len, uint32_t sudi_id, const uint8_t *amount);
+int gw_log(uint32_t account_id, uint8_t service_flag, uint64_t len, const uint8_t *data);
+int gw_bn_add(uint8_t *data, uint64_t len, uint64_t offset, const uint8_t *input, uint64_t input_size);
+int gw_bn_mul(uint8_t *data, uint64_t len, uint64_t offset, const uint8_t *input, uint64_t input_size);
+int gw_bn_pairing(uint8_t *data, uint64_t len, uint64_t offset, const uint8_t *input, uint64_t input_size);
+int gw_snapshot(uint32_t *snapshot);
+int gw_revert(uint32_t snapshot);
+int gw_check_sudt_addr_permission(const uint8_t* sudt_proxy_addr);
+/*=====gw syscalls====*/
+
+/*=====utils====*/
+int gw_reset();
+int gw_set_tx(const uint8_t *addr, uint64_t len);
+int gw_create_contract_account(const uint8_t *eth_addr,
+                               const uint8_t *mint_addr,
+                               const uint8_t *code_addr,
+                               uint64_t code_size,
+                               uint32_t *account_id);
+int gw_create_eoa_account(const uint8_t *eth_addr, const uint8_t *mint_addr, uint32_t *account_id);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/src/constants.rs b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/src/constants.rs
new file mode 100644
index 000000000..448f432fa
--- /dev/null
+++ b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/src/constants.rs
@@ -0,0 +1,55 @@
+pub const CREATOR_ACCOUNT_ID: u32 = 1;
+pub const CHAIN_ID: u64 = 1;
+
+pub const META_VALIDATOR_SCRIPT_TYPE_HASH: [u8; 32] = [0xa1u8; 32];
+pub const SUDT_VALIDATOR_SCRIPT_TYPE_HASH: [u8; 32] = [0xa2u8; 32];
+pub const ROLLUP_SCRIPT_HASH: [u8; 32] = [0xa9u8; 32];
+pub const ETH_ACCOUNT_LOCK_CODE_HASH: [u8; 32] = [0xaau8; 32];
+pub const SECP_LOCK_CODE_HASH: [u8; 32] = [0xbbu8; 32];
+pub const POLYJUICE_PROGRAM_CODE_HASH: [u8; 32] = [0xb1u8; 32];
+pub const ETH_ADDRESS_REGISTRY_PROGRAM_CODE_HASH: [u8; 32] = [0xb2u8; 32];
+pub const BLOCK_HASH: [u8; 32] = [0xc1; 32];
+pub const BLOCK_PRODUCER_ETH_ADDRESSS: &str = "a1ad227Ad369f593B5f3d0Cc934A681a50811CB2";
+
+pub const GW_LOG_SUDT_TRANSFER: u8 = 0x0;
+pub const GW_LOG_SUDT_PAY_FEE: u8 = 0x1;
+pub const GW_LOG_POLYJUICE_SYSTEM: u8 = 0x2;
+pub const GW_LOG_POLYJUICE_USER: u8 = 0x3;
+
+pub const SUCCESS: i32 = 0;
+pub const ERROR: i32 = -9;
+/* Data Fatals */
+pub const GW_FATAL_BUFFER_OVERFLOW: i8 = 50;
+pub const GW_FATAL_INVALID_CONTEXT: i8 = 51;
+pub const GW_FATAL_INVALID_DATA: i8 = 52;
+pub const GW_FATAL_MISMATCH_RETURN_DATA: i8 = 53;
+pub const GW_FATAL_UNKNOWN_ARGS: i8 = 54;
+pub const GW_FATAL_INVALID_SUDT_SCRIPT: i8 = 55;
+
+/* Notfound Fatals */
+pub const GW_FATAL_DATA_CELL_NOT_FOUND: i8 = 60;
+pub const GW_FATAL_STATE_KEY_NOT_FOUND: i8 = 61;
+pub const GW_FATAL_SIGNATURE_CELL_NOT_FOUND: i8 = 62;
+pub const GW_FATAL_SCRIPT_NOT_FOUND: i8 = 63;
+
+/* Merkle Fatals */
+pub const GW_FATAL_INVALID_PROOF: i8 = 70;
+pub const GW_FATAL_INVALID_STACK: i8 = 71;
+pub const GW_FATAL_INVALID_SIBLING: i8 = 72;
+
+/* User Errors */
+pub const GW_ERROR_DUPLICATED_SCRIPT_HASH: i8 = 80;
+pub const GW_ERROR_UNKNOWN_SCRIPT_CODE_HASH: i8 = 81;
+pub const GW_ERROR_INVALID_ACCOUNT_SCRIPT: i8 = 82;
+pub const GW_ERROR_NOT_FOUND: i8 = 83;
+pub const GW_ERROR_RECOVER: i8 = 84;
+pub const GW_ERROR_ACCOUNT_NOT_FOUND: i8 = 85;
+
+/* SUDT */
+pub const GW_SUDT_ERROR_INSUFFICIENT_BALANCE: i8 = 92i8;
+pub const GW_SUDT_ERROR_AMOUNT_OVERFLOW: i8 = 93i8;
+
+pub const GW_ITEM_MISSING: i32 = 1;
+
+// 25KB is max ethereum contract code size
+const MAX_SET_RETURN_DATA_SIZE: u64 = 1024 * 25;
diff --git a/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/src/lib.rs b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/src/lib.rs
new file mode 100644
index 000000000..39fa8c155
--- /dev/null
+++ b/gwos-evm/polyjuice-tests/fuzz/gw-syscall-simulator/src/lib.rs
@@ -0,0 +1,711 @@
+#[allow(dead_code)]
+pub mod constants;
+use anyhow::{anyhow, Result};
+use constants::{
+    BLOCK_HASH, BLOCK_PRODUCER_ETH_ADDRESSS, CHAIN_ID, CREATOR_ACCOUNT_ID,
+    ETH_ACCOUNT_LOCK_CODE_HASH, ETH_ADDRESS_REGISTRY_PROGRAM_CODE_HASH, GW_ERROR_ACCOUNT_NOT_FOUND,
+    GW_ERROR_DUPLICATED_SCRIPT_HASH, GW_ERROR_INVALID_ACCOUNT_SCRIPT, GW_ERROR_NOT_FOUND,
+    GW_ITEM_MISSING, META_VALIDATOR_SCRIPT_TYPE_HASH, POLYJUICE_PROGRAM_CODE_HASH,
+    ROLLUP_SCRIPT_HASH, SUCCESS, SUDT_VALIDATOR_SCRIPT_TYPE_HASH,
+};
+use gw_common::blake2b::new_blake2b;
+use gw_common::builtins::{CKB_SUDT_ACCOUNT_ID, ETH_REGISTRY_ACCOUNT_ID};
+use gw_common::registry_address::RegistryAddress;
+use gw_common::state::{
+    build_account_field_key, build_account_key, build_data_hash_key,
+    build_script_hash_to_account_id_key, State, GW_ACCOUNT_NONCE_TYPE, GW_ACCOUNT_SCRIPT_HASH_TYPE,
+};
+use gw_common::CKB_SUDT_SCRIPT_ARGS;
+use gw_generator::syscalls::bn;
+use gw_generator::traits::StateExt;
+use gw_store::Store;
+use gw_traits::CodeStore;
+use gw_types::U256;
+use gw_types::{
+    bytes::Bytes,
+    core::{AllowedContractType, AllowedEoaType, ScriptHashType},
+    offchain::RunResult,
+    packed::*,
+    prelude::*,
+};
+use gwstore::state::traits::JournalDB;
+use once_cell::sync::Lazy;
+use std::os::raw::{c_char, c_int, c_void};
+use std::u128;
+use std::{ffi::CStr, sync::Mutex};
+
+use crate::constants::ERROR;
+use gw_smt::smt::SMT;
+pub use gw_store as gwstore;
+pub use gw_types;
+use gw_types::h256::*;
+use gwstore::{
+    smt::smt_store::SMTStateStore,
+    snapshot::StoreSnapshot,
+    state::{
+        overlay::{mem_state::MemStateTree, mem_store::MemStore},
+        MemStateDB,
+    },
+};
+
+type DummyState = MemStateDB;
+pub fn new_dummy_state(store: StoreSnapshot) -> MemStateDB {
+    let smt = SMT::new(
+        H256::zero().into(),
+        SMTStateStore::new(MemStore::new(store)),
+    );
+    let inner = MemStateTree::new(smt, 0);
+    MemStateDB::new(inner)
+}
+
+struct GodwokenHost {
+    rollup_config: RollupConfig,
+    block_info: BlockInfo,
+    tx: Option<Vec<u8>>,
+    run_result: RunResult,
+    state: DummyState,
+}
+
+impl GodwokenHost {
+    fn new() -> Self {
+        let rollup_config = RollupConfig::new_builder()
+            .chain_id(CHAIN_ID.pack())
+            .l2_sudt_validator_script_type_hash(SUDT_VALIDATOR_SCRIPT_TYPE_HASH.pack())
+            .allowed_contract_type_hashes(
+                vec![
+                    AllowedTypeHash::new(
+                        AllowedContractType::Meta,
+                        META_VALIDATOR_SCRIPT_TYPE_HASH,
+                    ),
+                    AllowedTypeHash::new(
+                        AllowedContractType::Sudt,
+                        SUDT_VALIDATOR_SCRIPT_TYPE_HASH,
+                    ),
+                    AllowedTypeHash::new(
+                        AllowedContractType::Polyjuice,
+                        POLYJUICE_PROGRAM_CODE_HASH,
+                    ),
+                    AllowedTypeHash::new(
+                        AllowedContractType::EthAddrReg,
+                        ETH_ADDRESS_REGISTRY_PROGRAM_CODE_HASH,
+                    ),
+                ]
+                .pack(),
+            )
+            .allowed_eoa_type_hashes(
+                vec![AllowedTypeHash::new(
+                    AllowedEoaType::Eth,
+                    ETH_ACCOUNT_LOCK_CODE_HASH,
+                )]
+                .pack(),
+            )
+            .build();
+        let store = Store::open_tmp().expect("open store");
+        let snapshot = store.get_snapshot();
+        let state = new_dummy_state(snapshot); // will be reset
+        let eth_address: [u8; 20] = hex::decode(BLOCK_PRODUCER_ETH_ADDRESSS)
+            .expect("decode hex eth_address")
+            .try_into()
+            .unwrap();
+        let address = RegistryAddress::new(ETH_REGISTRY_ACCOUNT_ID, eth_address.to_vec());
+        let block_info = BlockInfo::new_builder()
+            .number(1.pack())
+            .timestamp(1.pack())
+            .block_producer(Bytes::from(address.to_bytes()).pack())
+            .build();
+        GodwokenHost {
+            rollup_config,
+            block_info,
+            tx: None,
+            run_result: RunResult::default(),
+            state,
+        }
+    }
+    fn get_raw(&mut self, key: &H256) -> Result<H256> {
+        let tree_value = self
+            .state
+            .get_raw(key)
+            .map_err(|err| anyhow!(err.to_string()))?;
+        self.run_result.read_data_hashes.insert(*key);
+        Ok(tree_value)
+    }
+    fn get_account_id_by_script_hash(&mut self, script_hash: &H256) -> Result<Option<u32>> {
+        let value = self
+            .get_raw(&build_script_hash_to_account_id_key(script_hash.as_slice()))
+            .map_err(|err| anyhow!("syscall error: get account id by script hash : {:?}", err))?;
+        if value.is_zero() {
+            return Ok(None);
+        }
+        let id = value.to_u32();
+        Ok(Some(id))
+    }
+
+    fn get_account_count(&self) -> Result<u32> {
+        let count = self
+            .state
+            .get_account_count()
+            .map_err(|err| anyhow!("syscall error: get account count : {:?}", err))?;
+        Ok(count)
+    }
+
+    fn get_script_hash(&mut self, id: u32) -> Result<H256> {
+        let value = self
+            .get_raw(&build_account_field_key(id, GW_ACCOUNT_SCRIPT_HASH_TYPE))
+            .map_err(|err| anyhow!("syscall error: get script hash by account id : {:?}", err))?;
+        Ok(value)
+    }
+
+    fn get_script(&mut self, script_hash: &H256) -> Option<Script> {
+        self.state.get_script(script_hash)
+    }
+    fn get_data(&self, data_hash: &H256) -> Option<Bytes> {
+        self.state.get_data(data_hash)
+    }
+}
+
+static HOST: Lazy<Mutex<GodwokenHost>> = Lazy::new(|| Mutex::new(GodwokenHost::new()));
+
+#[no_mangle]
+pub extern "C" fn ckb_exit(code: i8) -> i32 {
+    std::process::exit(code.into());
+}
+
+#[no_mangle]
+pub extern "C" fn ckb_debug(s: *const c_char) {
+    let message = unsafe { CStr::from_ptr(s) }.to_str().expect("UTF8 error!");
+    println!("Debug message: {}", message);
+}
+
+#[no_mangle]
+pub extern "C" fn gw_load_rollup_config(addr: *mut c_void, len: *mut u64) -> c_int {
+    let data = HOST.lock().unwrap().rollup_config.as_slice().to_vec();
+    store_data(addr, len, 0, &data);
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_store(key_addr: *const u8, value_addr: *const u8) -> c_int {
+    let key = load_data_h256(key_addr);
+    let value = load_data_h256(value_addr);
+    HOST.lock()
+        .unwrap()
+        .state
+        .update_raw(key, value)
+        .expect("gw_store");
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_load(key_addr: *const u8, value_addr: *mut u8) -> c_int {
+    let key = load_data_h256(key_addr);
+    let val = HOST.lock().unwrap().state.get_raw(&key).expect("gw_load");
+    store_h256(value_addr, &val);
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_set_return_data(addr: *const u8, len: u64) -> c_int {
+    let buf = load_bytes(addr, len);
+    HOST.lock().unwrap().run_result.return_data = buf;
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_create(
+    script_addr: *const u8,
+    script_len: u64,
+    account_id_addr: *mut u32,
+) -> c_int {
+    let script_data = load_bytes(script_addr, script_len);
+    let script = match Script::from_slice(&script_data[..]) {
+        Ok(script) => script,
+        Err(_err) => return GW_ERROR_INVALID_ACCOUNT_SCRIPT.into(),
+    };
+    let script_hash = script.hash();
+    // check exists
+    match HOST
+        .lock()
+        .unwrap()
+        .get_account_id_by_script_hash(&script_hash.into())
+    {
+        Ok(Some(_)) => return GW_ERROR_DUPLICATED_SCRIPT_HASH.into(),
+        Ok(None) => {}
+        Err(_err) => {
+            return ERROR;
+        }
+    }
+    // TODO: valide script
+    let id = match HOST.lock().unwrap().get_account_count() {
+        Ok(id) => id,
+        Err(_err) => {
+            return ERROR;
+        }
+    };
+
+    let state = &mut HOST.lock().unwrap().state;
+    let result = &mut HOST.lock().unwrap().run_result;
+    let account_nonce_key = build_account_field_key(id, GW_ACCOUNT_NONCE_TYPE);
+    state
+        .update_raw(account_nonce_key, H256::zero())
+        .expect("account nonce key");
+    result.write_data_hashes.insert(account_nonce_key);
+    let account_script_hash_key = build_account_field_key(id, GW_ACCOUNT_SCRIPT_HASH_TYPE);
+    state
+        .update_raw(account_script_hash_key, script_hash)
+        .expect("account script hash key");
+    result.write_data_hashes.insert(account_script_hash_key);
+    // script hash to id
+    let script_hash_to_id_value: H256 = {
+        let mut buf: [u8; 32] = H256::from_u32(id).into();
+        // the first 4 bytes is id, set exists flag(fifth byte) to 1
+        buf[4] = 1;
+        buf.into()
+    };
+    let script_hash_to_account_id_key = build_script_hash_to_account_id_key(&script_hash[..]);
+    state
+        .update_raw(script_hash_to_account_id_key, script_hash_to_id_value)
+        .expect("write script hash to account id key");
+    result
+        .write_data_hashes
+        .insert(script_hash_to_account_id_key);
+    // insert script
+    state.insert_script(script_hash, script);
+    state.set_account_count(id + 1).expect("set account count");
+
+    let size_ptr = unsafe { account_id_addr.as_mut().expect("casting pointer") };
+    *size_ptr = id;
+
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_load_tx(addr: *mut c_void, len: *mut u64) -> c_int {
+    if let Some(tx) = &HOST.lock().unwrap().tx {
+        store_data(addr, len, 0, tx);
+        SUCCESS
+    } else {
+        GW_ITEM_MISSING
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn gw_load_block_info(addr: *mut c_void, len: *mut u64) -> c_int {
+    let data = HOST.lock().unwrap().block_info.as_slice().to_vec();
+    store_data(addr, len, 0, &data);
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_store_data(data_addr: *const u8, len: u64) -> c_int {
+    let data = load_bytes(data_addr, len);
+    let mut data_hash = [0u8; 32];
+    let mut hasher = new_blake2b();
+    hasher.update(data.as_ref());
+    hasher.finalize(&mut data_hash);
+    // insert data hash into SMT
+    let data_hash_key = build_data_hash_key(&data_hash);
+    let state = &mut HOST.lock().unwrap().state;
+    state
+        .update_raw(data_hash_key, H256::one())
+        .expect("gw store data");
+    state.insert_data(data_hash.into(), data);
+
+    let result = &mut HOST.lock().unwrap().run_result;
+    result.write_data_hashes.insert(data_hash_key);
+    result.write_data_hashes.insert(data_hash.into());
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_load_data(
+    data_addr: &mut c_void,
+    len: *mut u64,
+    offset: u64,
+    data_hash_addr: *const u8,
+) -> c_int {
+    let data_hash = load_data_h256(data_hash_addr);
+    let host = &mut HOST.lock().unwrap();
+    let data = match host.get_data(&data_hash) {
+        Some(data) => data,
+        None => return GW_ERROR_NOT_FOUND.into(),
+    };
+    store_data(data_addr, len, offset, data.as_ref());
+    host.run_result.read_data_hashes.insert(data_hash);
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_load_account_script(
+    script_addr: *mut c_void,
+    len: *mut u64,
+    offset: u64,
+    account_id: u32,
+) -> c_int {
+    let host = &mut HOST.lock().unwrap();
+    let script_hash = match host.get_script_hash(account_id) {
+        Ok(id) => id,
+        Err(_err) => {
+            return ERROR;
+        }
+    };
+    if script_hash.is_zero() {
+        return GW_ERROR_ACCOUNT_NOT_FOUND.into();
+    }
+    let script = match host.get_script(&script_hash) {
+        Some(script) => script,
+        None => {
+            return ERROR;
+        }
+    };
+    store_data(script_addr, len, offset, script.as_slice());
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_get_block_hash(block_hash_addr: *mut u8, _number: u64) -> c_int {
+    store_h256(block_hash_addr, &H256::from(BLOCK_HASH));
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_pay_fee(
+    reg_addr_buf: *const u8,
+    len: u64,
+    _sudt_id: u32,
+    amount_addr: *const u8,
+) -> c_int {
+    let payer_addr_bytes = load_bytes(reg_addr_buf, len);
+    let _payer_addr = match RegistryAddress::from_slice(&payer_addr_bytes) {
+        Some(addr) => addr,
+        None => {
+            return ERROR;
+        }
+    };
+    let _amount = load_data_h256(amount_addr);
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_log(account_id: u32, service_flag: u8, len: u64, data: *const u8) -> c_int {
+    let data = load_bytes(data, len);
+    let log_item = LogItem::new_builder()
+        .account_id(account_id.pack())
+        .service_flag(service_flag.into())
+        .data(Bytes::from(data).pack())
+        .build();
+    HOST.lock().unwrap().run_result.logs.push(log_item);
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_bn_add(
+    output: &mut c_void,
+    output_len: *mut u64,
+    offset: u64,
+    input: *const u8,
+    input_size: u64,
+) -> c_int {
+    let buf = load_bytes(input, input_size);
+    match bn::add(&buf) {
+        Ok(data) => {
+            store_data(output, output_len, offset, &data);
+            SUCCESS
+        }
+        Err(err) => {
+            let err_msg = format!("syscall SYS_BN_ADD error: {:?}", err.0);
+            println!("{}", err_msg);
+            return ERROR;
+        }
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn gw_bn_mul(
+    output: &mut c_void,
+    output_len: *mut u64,
+    offset: u64,
+    input: *const u8,
+    input_size: u64,
+) -> c_int {
+    let buf = load_bytes(input, input_size);
+    match bn::mul(&buf) {
+        Ok(data) => {
+            store_data(output, output_len, offset, &data);
+            SUCCESS
+        }
+        Err(err) => {
+            let err_msg = format!("syscall SYS_BN_ADD error: {:?}", err.0);
+            println!("{}", err_msg);
+            return ERROR;
+        }
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn gw_bn_pairing(
+    output: &mut c_void,
+    output_len: *mut u64,
+    offset: u64,
+    input: *const u8,
+    input_size: u64,
+) -> c_int {
+    let buf = load_bytes(input, input_size);
+    match bn::pairing(&buf) {
+        Ok(data) => {
+            store_data(output, output_len, offset, &data);
+            SUCCESS
+        }
+        Err(err) => {
+            let err_msg = format!("syscall SYS_BN_ADD error: {:?}", err.0);
+            println!("{}", err_msg);
+            return ERROR;
+        }
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn gw_snapshot(snapshot_id: *mut u32) -> c_int {
+    let host = &mut HOST.lock().unwrap();
+    let id = host.state.snapshot() as u32;
+
+    let snapshot_id_ptr = unsafe { snapshot_id.as_mut().expect("casting pointer") };
+    *snapshot_id_ptr = id;
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_revert(snapshot_id: u32) -> c_int {
+    let host = &mut HOST.lock().unwrap();
+    host.state
+        .revert(snapshot_id as usize)
+        .expect("revert failed");
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_check_sudt_addr_permission(_addr: *const u8) -> c_int {
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_reset() -> c_int {
+    let host = &mut HOST.lock().unwrap();
+
+    let store = Store::open_tmp().expect("open store");
+    let snapshot = store.get_snapshot();
+    let mut state = new_dummy_state(snapshot);
+    // setup CKB simple UDT contract
+    let ckb_sudt_script = build_l2_sudt_script(CKB_SUDT_SCRIPT_ARGS);
+    let ckb_sudt_id = state.create_account_from_script(ckb_sudt_script).expect("");
+    // creator id
+    let mut args = [0u8; 36];
+    args[0..32].copy_from_slice(&ROLLUP_SCRIPT_HASH);
+    args[32..36].copy_from_slice(&ckb_sudt_id.to_le_bytes()[..]);
+    let creator_script = Script::new_builder()
+        .code_hash(POLYJUICE_PROGRAM_CODE_HASH.pack())
+        .hash_type(ScriptHashType::Type.into())
+        .args(args.to_vec().pack())
+        .build();
+    let _creator_account_id = state
+        .create_account_from_script(creator_script)
+        .expect("create creator_account");
+    let eth_address: [u8; 20] = hex::decode(BLOCK_PRODUCER_ETH_ADDRESSS)
+        .expect("decode hex eth_address")
+        .try_into()
+        .unwrap();
+    let mut script_args = Vec::with_capacity(32 + 20);
+    script_args.extend(&ROLLUP_SCRIPT_HASH);
+    script_args.extend(&eth_address[..]);
+    let block_producer_script = Script::new_builder()
+        .args(Bytes::from(script_args).pack())
+        .code_hash(ETH_ACCOUNT_LOCK_CODE_HASH.clone().pack())
+        .hash_type(ScriptHashType::Type.into())
+        .build();
+    let block_producer_script_hash = block_producer_script.hash().into();
+    let _block_producer_id = state
+        .create_account_from_script(block_producer_script)
+        .expect("create_block_producer");
+
+    let address = RegistryAddress::new(ETH_REGISTRY_ACCOUNT_ID, eth_address.to_vec());
+    state
+        .mapping_registry_address_to_script_hash(address, block_producer_script_hash)
+        .expect("set mapping");
+    host.state = state;
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_set_tx(addr: *const u8, len: u64) -> c_int {
+    let slice = unsafe { std::slice::from_raw_parts(addr, len as usize) };
+    let mut buf = Vec::with_capacity(len as usize);
+    buf.extend_from_slice(slice);
+    HOST.lock().unwrap().tx = Some(buf);
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_create_eoa_account(
+    eth_address: *const u8,
+    mint_ckb: *const u8,
+    account_id_addr: *mut u32,
+) -> c_int {
+    let slice = unsafe { std::slice::from_raw_parts(eth_address, 20) };
+    let mut eth_address = [0u8; 20];
+    eth_address.copy_from_slice(slice);
+    let script = build_eth_l2_script(&eth_address);
+    let script_hash = script.hash();
+    let state = &mut HOST.lock().unwrap().state;
+    let account_id = match state.create_account_from_script(script) {
+        Ok(account_id) => account_id,
+        Err(_err) => {
+            return ERROR;
+        }
+    };
+    let address = RegistryAddress::new(ETH_REGISTRY_ACCOUNT_ID, eth_address.to_vec());
+    if let Err(_err) =
+        state.mapping_registry_address_to_script_hash(address.clone(), script_hash.into())
+    {
+        return ERROR;
+    }
+
+    let slice = unsafe { std::slice::from_raw_parts(mint_ckb, 16) };
+    let mut mint_array = [0u8; 16];
+    mint_array.copy_from_slice(slice);
+    let mint_ckb = U256::from(u128::from_le_bytes(mint_array));
+
+    if let Err(_err) = state.mint_sudt(CKB_SUDT_ACCOUNT_ID, &address, mint_ckb) {
+        return ERROR;
+    }
+
+    let size_ptr = unsafe { account_id_addr.as_mut().expect("casting pointer") };
+    *size_ptr = account_id;
+    SUCCESS
+}
+
+#[no_mangle]
+pub extern "C" fn gw_create_contract_account(
+    eth_address: *const u8,
+    mint: *const u8,
+    code: *const u8,
+    code_size: u64,
+    account_id_addr: *mut u32,
+) -> c_int {
+    let mut new_script_args = vec![0u8; 32 + 4 + 20];
+    new_script_args[0..32].copy_from_slice(&ROLLUP_SCRIPT_HASH);
+    new_script_args[32..36].copy_from_slice(&CREATOR_ACCOUNT_ID.to_le_bytes()[..]);
+    let slice = unsafe { std::slice::from_raw_parts(eth_address, 20) };
+    let mut eth_address = [0u8; 20];
+    eth_address.copy_from_slice(slice);
+    new_script_args[36..36 + 20].copy_from_slice(&eth_address);
+
+    let script = Script::new_builder()
+        .code_hash(POLYJUICE_PROGRAM_CODE_HASH.pack())
+        .hash_type(ScriptHashType::Type.into())
+        .args(new_script_args.pack())
+        .build();
+    let script_hash = script.hash();
+    let state = &mut HOST.lock().unwrap().state;
+    let account_id = match state.create_account_from_script(script) {
+        Ok(account_id) => account_id,
+        Err(_err) => {
+            return ERROR;
+        }
+    };
+    let address = RegistryAddress::new(ETH_REGISTRY_ACCOUNT_ID, eth_address.to_vec());
+    if let Err(_err) =
+        state.mapping_registry_address_to_script_hash(address.clone(), script_hash.into())
+    {
+        return ERROR;
+    }
+
+    let slice = unsafe { std::slice::from_raw_parts(mint, 16) };
+    let mut mint_array = [0u8; 16];
+    mint_array.copy_from_slice(slice);
+    let mint_ckb = U256::from(u128::from_le_bytes(mint_array));
+    if let Err(_err) = state.mint_sudt(CKB_SUDT_ACCOUNT_ID, &address, mint_ckb) {
+        return ERROR;
+    }
+
+    //set code
+    //build polyjuice account key
+    let mut key = [0u8; 32];
+    key[0..4].copy_from_slice(&account_id.to_le_bytes());
+    key[4] = 0xFF;
+    key[5] = 0x01;
+
+    let code_slice = unsafe { std::slice::from_raw_parts(code, code_size as usize) };
+    let mut data_hash = [0u8; 32];
+    let mut hasher = new_blake2b();
+    hasher.update(code_slice);
+    hasher.finalize(&mut data_hash);
+    let data_hash = build_account_key(account_id, &data_hash);
+    //sys_store key - data hash
+    state
+        .update_value(account_id, &key, data_hash)
+        .expect("update value");
+    let data_hash = state.get_value(account_id, &key).expect("get value");
+
+    let data_hash_key = build_data_hash_key(data_hash.as_slice());
+    state
+        .update_raw(data_hash_key, H256::one())
+        .expect("update raw");
+    //sys_store_data data hash - data
+    let code = Bytes::copy_from_slice(code_slice);
+    state.insert_data(data_hash, code);
+
+    let size_ptr = unsafe { account_id_addr.as_mut().expect("casting pointer") };
+    *size_ptr = account_id;
+    SUCCESS
+}
+
+fn store_data(ptr: *mut c_void, len: *mut u64, offset: u64, data: &[u8]) {
+    let size_ptr = unsafe { len.as_mut().expect("casting pointer") };
+    let size = *size_ptr;
+    let buffer = unsafe { std::slice::from_raw_parts_mut(ptr as *mut u8, size as usize) };
+    let data_len = data.len() as u64;
+    let offset = std::cmp::min(data_len, offset);
+    let full_size = data_len - offset;
+    let real_size = std::cmp::min(size, full_size);
+    *size_ptr = full_size;
+    buffer[..real_size as usize]
+        .copy_from_slice(&data[offset as usize..(offset + real_size) as usize]);
+}
+
+fn store_h256(ptr: *mut u8, h256: &H256) {
+    let buffer = unsafe { std::slice::from_raw_parts_mut(ptr, 32) };
+    buffer.copy_from_slice(h256.as_slice());
+}
+
+fn load_data_h256(addr: *const u8) -> H256 {
+    let mut arr = [0u8; 32];
+    let slice = unsafe { std::slice::from_raw_parts(addr, 32) };
+    arr.copy_from_slice(slice);
+    arr.into()
+}
+
+fn load_bytes(addr: *const u8, len: u64) -> Bytes {
+    let slice = unsafe { std::slice::from_raw_parts(addr, len as usize) };
+    slice.into()
+}
+
+pub fn build_eth_l2_script(args: &[u8; 20]) -> Script {
+    let mut script_args = Vec::with_capacity(32 + 20);
+    script_args.extend(&ROLLUP_SCRIPT_HASH);
+    script_args.extend(&args[..]);
+    Script::new_builder()
+        .args(Bytes::from(script_args).pack())
+        .code_hash(ETH_ACCOUNT_LOCK_CODE_HASH.clone().pack())
+        .hash_type(ScriptHashType::Type.into())
+        .build()
+}
+
+pub fn build_l2_sudt_script(args: [u8; 32]) -> Script {
+    let mut script_args = Vec::with_capacity(64);
+    script_args.extend(&ROLLUP_SCRIPT_HASH);
+    script_args.extend(&args[..]);
+    Script::new_builder()
+        .args(Bytes::from(script_args).pack())
+        .code_hash(SUDT_VALIDATOR_SCRIPT_TYPE_HASH.clone().pack())
+        .hash_type(ScriptHashType::Type.into())
+        .build()
+}
diff --git a/gwos-evm/polyjuice-tests/fuzz/mock_godwoken.hpp b/gwos-evm/polyjuice-tests/fuzz/mock_godwoken.hpp
deleted file mode 100644
index 3c6a84550..000000000
--- a/gwos-evm/polyjuice-tests/fuzz/mock_godwoken.hpp
+++ /dev/null
@@ -1,489 +0,0 @@
-#include <iostream>
-
-#include <evmc/evmc.hpp>
-#include <evmc/mocked_host.hpp>
-#include <evmc/hex.hpp>
-
-#include <polyjuice_globals.h>
-
-using namespace std;
-using namespace evmc;
-
-class MockedGodwoken : public MockedHost {
-public:
-  uint32_t account_count = 0;
-  unordered_map<bytes32, bytes32> state;
-  unordered_map<bytes32, bytes> code_store;
-  uint8_t rollup_config[GW_MAX_ROLLUP_CONFIG_SIZE];
-  uint32_t rollup_config_size;
-
-  result call(const evmc_message& msg) noexcept override {
-    auto result = MockedHost::call(msg);
-    return result;
-  }
-
-  /// Overwrite get_block_hash (EVMC host method).
-  /// disable blockhashes record
-  bytes32 get_block_hash(int64_t block_number) const noexcept override {
-    return block_hash;
-  }
-};
-
-struct fuzz_input {
-  evmc_revision rev{};
-  evmc_message msg{};
-  bytes raw_tx;
-  MockedGodwoken mock_gw;
-
-  /// Creates invalid input.
-  fuzz_input() noexcept { msg.gas = -1; }
-
-  explicit operator bool() const noexcept { return msg.gas != -1; }
-};
-auto in = fuzz_input{};
-MockedGodwoken* gw_host = &in.mock_gw;
-
-
-extern "C" int ckb_debug(const char* str) {
-  cout << "[debug] " << str << endl;
-  return 0;
-}
-
-#ifndef POLYJUICE_DEBUG_LOG
-#undef ckb_debug
-#define ckb_debug(s) do {} while (0)
-#endif
-
-inline ostream& operator<<(ostream& stream, const bytes32& b32) {
-  stream << "H256[";
-  for (size_t i = 0; i < 31; i++)
-    stream << (uint16_t)b32.bytes[i] << ", ";
-  return stream << (uint16_t)b32.bytes[31] << ']';
-}
-inline ostream& operator<<(ostream& stream, const bytes& bs) {
-  for (auto &&i : bs){
-    stream << (uint16_t)i << ' ';
-  }
-  return stream;
-}
-
-bytes32 u256_to_bytes32(const uint8_t u8[32]) {
-  auto ret = bytes32{};
-  memcpy(ret.bytes, u8, 32);
-  return ret;
-}
-
-// void dbg_print_bytes32(bytes32& b32) {
-//   dbg_print(<< b32);
-// }
-
-extern "C" void gw_update_raw(const uint8_t k[GW_KEY_BYTES], const uint8_t v[GW_KEY_BYTES]){
-  in.mock_gw.state[u256_to_bytes32(k)] = u256_to_bytes32(v);
-}
-
-/* store code or script */
-extern "C" int gw_store_data(const uint64_t len, uint8_t *data) {
-  uint8_t script_hash[GW_KEY_BYTES];
-  blake2b_hash(script_hash, data, len);
-
-
-  if (len < 0 || len > GW_MAX_DATA_SIZE) {
-    dbg_print("[gw_store_data] !!!!!! warning: data_len = %ld !!!!!!", len);
-    dbg_print("Exceeded max store data size");
-    return GW_FATAL_INVALID_DATA;
-  }
-
-  // store(data_hash_key, H256::one) insert data hash into SMT
-  uint8_t data_hash_key[GW_KEY_BYTES];
-  gw_build_data_hash_key(script_hash, data_hash_key);
-  uint32_t one = 1;
-  uint8_t h256_one[GW_VALUE_BYTES] = {0};
-  memcpy(h256_one, &one, sizeof(uint32_t));
-  gw_update_raw(data_hash_key, h256_one);
-
-  gw_host->code_store[u256_to_bytes32(script_hash)] = bytes((uint8_t *)data, len);
-  return 0;
-}
-
-extern "C" int gw_sys_load_data(uint8_t *addr,
-                                uint64_t *len_ptr,
-                                uint64_t offset,
-                                uint8_t data_hash[GW_KEY_BYTES]) {
-  auto search = gw_host->code_store.find(u256_to_bytes32(data_hash));
-  if (search == gw_host->code_store.end()) {
-    return GW_ERROR_NOT_FOUND;
-  }
-  *len_ptr = search->second.size();
-  search->second.copy(addr, *len_ptr);
-  return 0;
-}
-
-void print_state() {
-  for (auto kv : gw_host->state) {
-    cout << "\t key:\t" << kv.first << endl << "\t value:\t" << kv.second << endl;
-  }
-}
-
-// sys_load from state
-extern "C" int gw_sys_load(const uint8_t k[GW_KEY_BYTES], uint8_t v[GW_KEY_BYTES]) {
-  auto search = gw_host->state.find(u256_to_bytes32(k));
-  if (search == gw_host->state.end()) {
-    dbg_print("gw_sys_load failed, missing key:");
-    dbg_print_h256(k);
-    // dbg_print("all the state as following:");
-    // print_state();
-    return GW_ERROR_NOT_FOUND;
-  }
-  memcpy(v, search->second.bytes, GW_KEY_BYTES);
-  return 0;
-}
-
-// load raw layer2 transaction data from fuzzInput.raw_tx
-extern "C" int gw_load_transaction_from_raw_tx(uint8_t* addr, uint64_t* len) {
-  *len = in.raw_tx.size();
-  in.raw_tx.copy(addr, *len);
-  return 0;
-}
-
-extern "C" void gw_sys_set_return_data(uint8_t* addr, uint64_t len) {
-  // should not make a new result
-  // in.mock_gw.call_result = make_result(evmc_status_code{}, 0, addr, len);
-  dbg_print("gw_sys_set_return_data:");
-  // cout << bytes(addr, len) << endl;
-}
-
-extern "C" void gw_sys_get_block_hash(uint8_t block_hash[GW_KEY_BYTES], uint64_t number) {
-  memcpy(block_hash, gw_host->get_block_hash(number).bytes, GW_KEY_BYTES);
-}
-
-extern "C" int gw_sys_load_blockinfo(uint8_t* bi_addr, uint64_t* len_ptr) {
-  /** 
-   * TODO: block_info fuzzInput
-   * struct BlockInfo {
-   *  block_producer_id: Uint32,
-   *  number: Uint64,
-   *  timestamp: Uint64}
-   */
-  const uint8_t mock_new_block_info[] = {0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-  *len_ptr = sizeof(mock_new_block_info);
-  dbg_print("mock_new_block_info to "
-            "{0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}");
-  memcpy((uint8_t*)bi_addr, mock_new_block_info, *len_ptr);
-  return 0;
-}
-
-extern "C" int gw_sys_load_script_hash_by_account_id(const uint32_t account_id, uint8_t script_hash[GW_KEY_BYTES]) {
-  // dbg_print("sys_get_script_hash_by_account_id account_id = %d", account_id);
-
-  uint8_t key[32] = {0};
-  gw_build_account_field_key(account_id, GW_ACCOUNT_SCRIPT_HASH, key);
-  return gw_sys_load(key, script_hash);
-
-  // FIXME read script_hash from mock State+CodeStore
-  // static const uint8_t test_script_hash[6][32] = {
-  //   {231, 196, 69, 164, 212, 229, 83, 6, 137, 240, 237, 105, 234, 223, 101, 133, 197, 66, 85, 214, 112, 85, 87, 71, 17, 170, 138, 126, 128, 173, 186, 76},
-  //   {50, 15, 9, 23, 166, 82, 42, 69, 226, 148, 203, 184, 168, 8, 210, 62, 226, 187, 187, 21, 122, 141, 152, 55, 88, 230, 63, 204, 23, 3, 166, 102},
-  //   {221, 60, 233, 16, 227, 19, 49, 118, 137, 43, 193, 160, 145, 21, 141, 6, 43, 206, 191, 210, 105, 160, 112, 23, 155, 184, 101, 113, 47, 247, 216, 122},
-  //   {48, 160, 141, 250, 92, 214, 34, 124, 231, 78, 106, 179, 173, 80, 61, 55, 161, 156, 45, 114, 214, 222, 9, 77, 4, 104, 52, 44, 30, 149, 27, 36},
-  //   {103, 167, 175, 25, 71, 242, 5, 31, 102, 236, 38, 188, 223, 212, 241, 99, 13, 4, 40, 150, 151, 55, 40, 147, 64, 29, 108, 50, 37, 159, 55, 137},
-  //   {125, 181, 86, 185, 69, 172, 188, 175, 36, 25, 118, 119, 114, 72, 199, 183, 204, 25, 147, 120, 109, 220, 192, 171, 10, 235, 47, 230, 42, 210, 169, 223}};
-}
-
-// extern "C" int gw_sys_get_script_hash_by_short_address(uint8_t *script_hash_addr,
-//                                                        uint8_t *prefix_addr,
-//                                                        uint64_t prefix_len) {
-//   for (auto pair : gw_host->code_store) {
-//     if (0 == memcmp(pair.first.bytes, prefix_addr, prefix_len)) {
-//       memcpy(script_hash_addr, pair.first.bytes, sizeof(pair.first.bytes));
-//       return 0;
-//     }
-//   }
-  
-//   dbg_print("gw_sys_get_script_hash_by_short_address failed");
-//   return GW_ERROR_NOT_FOUND;
-// }
-
-extern "C" int gw_sys_load_account_id_by_script_hash(uint8_t *script_hash,
-                                                     uint32_t *account_id_ptr) {
-  uint8_t raw_id_key[GW_KEY_BYTES];
-  gw_build_script_hash_to_account_id_key(script_hash, raw_id_key);
-  uint8_t result_addr[GW_KEY_BYTES];
-  int ret = gw_sys_load(raw_id_key, result_addr);
-  if (ret != 0) return ret;
-  *account_id_ptr = *((uint32_t *)result_addr);
-  return 0;
-}
-
-extern "C" int gw_sys_load_account_script(uint8_t *script_addr,
-                                          uint64_t *len_ptr,
-                                          const uint64_t offset,
-                                          const uint32_t account_id) {
-  uint8_t script_hash[GW_KEY_BYTES];
-  int ret = gw_sys_load_script_hash_by_account_id(account_id, script_hash);
-  if (ret != 0) {
-    return ret;
-  }
-  return gw_sys_load_data(script_addr, len_ptr, offset, script_hash);
-}
-
-extern "C" int gw_sys_load_rollup_config(uint8_t *addr,
-                                         uint64_t *len_ptr) {
-  *len_ptr = gw_host->rollup_config_size;
-  memcpy(addr, gw_host->rollup_config, *len_ptr);
-  return 0;
-}
-
-/// mock_mint_sudt on layer2
-void mock_mint_sudt(uint32_t sudt_id, uint32_t account_id, uint128_t balance)
-{
-  uint8_t script_hash[GW_KEY_BYTES] = {0};
-  gw_sys_load_script_hash_by_account_id(account_id, script_hash);
-
-  // _sudt_build_key
-  uint8_t key[GW_KEY_BYTES + 8] = {0};
-  uint64_t key_len = DEFAULT_SHORT_SCRIPT_HASH_LEN + 8;
-  const uint32_t SUDT_KEY_FLAG_BALANCE = 1;
-  const uint32_t short_script_hash_len = DEFAULT_SHORT_SCRIPT_HASH_LEN;
-  memcpy(key, (uint8_t *)(&SUDT_KEY_FLAG_BALANCE), sizeof(uint32_t));
-  memcpy(key + 4, (uint8_t *)(&short_script_hash_len), sizeof(uint32_t));
-  memcpy(key + 8, script_hash, short_script_hash_len);
-  uint8_t raw_key[GW_KEY_BYTES];
-  gw_build_account_key(sudt_id, key, key_len, raw_key);
-
-  uint8_t value[32] = {0};
-  *(uint128_t *)value = balance;
-
-  // sys_store balance
-  gw_update_raw(raw_key, value);
-}
-
-extern "C" int gw_sys_create(uint8_t *script, uint64_t script_len, uint32_t *account_id_ptr) {
-  int ret = 0;
-
-  // Return error if script_hash is exists
-  uint8_t script_hash[GW_KEY_BYTES];
-  blake2b_hash(script_hash, script, script_len);
-  if (0 == gw_sys_load_account_id_by_script_hash(script_hash, account_id_ptr)) {
-    dbg_print("script_hash is exists");
-    return GW_ERROR_DUPLICATED_SCRIPT_HASH;
-  }
-
-  // check script hash type
-  mol_seg_t script_seg;
-  script_seg.ptr = script;
-  script_seg.size = script_len;
-  mol_seg_t hash_type_seg = MolReader_Script_get_hash_type(&script_seg);
-  const uint8_t SCRIPT_HASH_TYPE_TYPE = 1;
-  if ((*(uint8_t *)hash_type_seg.ptr) != SCRIPT_HASH_TYPE_TYPE) {
-    dbg_print("script hash type = %d", *(uint8_t *)hash_type_seg.ptr);
-    return GW_ERROR_UNKNOWN_SCRIPT_CODE_HASH;
-  }
-
-#pragma push_macro("errno")
-#undef errno
-  // Check script validity
-  mol_seg_t code_hash_seg = MolReader_Script_get_code_hash(&script_seg);
-  if (code_hash_seg.size != 32) {
-    dbg_print("[GW_FATAL_INVALID_DATA] MolReader_Script_get_code_hash");
-    return GW_FATAL_INVALID_DATA;
-  }
-  /* check allowed EOA list */
-  mol_seg_t rollup_config_seg = {gw_host->rollup_config, gw_host->rollup_config_size};
-  mol_seg_t eoa_list_seg =
-    MolReader_RollupConfig_get_allowed_eoa_type_hashes(&rollup_config_seg);
-  uint32_t len = MolReader_Byte32Vec_length(&eoa_list_seg);
-  bool is_eos_account = false;
-  for (uint32_t i = 0; i < len; i++) {
-    mol_seg_res_t allowed_code_hash_res = MolReader_Byte32Vec_get(&eoa_list_seg, i);
-    if (memcmp(allowed_code_hash_res.seg.ptr, hash_type_seg.ptr, code_hash_seg.size) != 0) {
-      continue;
-    }
-    if (allowed_code_hash_res.errno != MOL_OK ||
-        allowed_code_hash_res.seg.size != code_hash_seg.size) {
-      ckb_debug("disallow script because eoa code_hash is invalid");
-      return GW_FATAL_INVALID_DATA;
-    } else {
-      is_eos_account = true;
-      break;
-    }
-  }
-  if (!is_eos_account) {
-    /* check allowed contract list */
-    mol_seg_t contract_list_seg =
-      MolReader_RollupConfig_get_allowed_contract_type_hashes(&rollup_config_seg);
-    len = MolReader_Byte32Vec_length(&contract_list_seg);
-
-    for (uint32_t i = 0; i < len; i++) {
-      mol_seg_res_t allowed_code_hash_res = MolReader_Byte32Vec_get(&contract_list_seg, i);
-      if (memcmp(allowed_code_hash_res.seg.ptr, code_hash_seg.ptr,
-        code_hash_seg.size) != 0) continue;
-      if (allowed_code_hash_res.errno != MOL_OK ||
-          allowed_code_hash_res.seg.size != code_hash_seg.size) {
-        ckb_debug("disallow script because contract code_hash is invalid");
-        return GW_FATAL_INVALID_DATA;
-      } else {
-        // check that contract'script must start with a 32 bytes rollup_script_hash
-        mol_seg_t args_seg = MolReader_Script_get_args(&script_seg);
-        mol_seg_t raw_args_seg = MolReader_Bytes_raw_bytes(&args_seg);
-        if (raw_args_seg.size < 32) {
-          ckb_debug("disallow contract script because args is less than 32 bytes");
-          return GW_ERROR_INVALID_ACCOUNT_SCRIPT;
-        }
-        // check contract script short length
-        if (memcmp(g_rollup_script_hash, raw_args_seg.ptr, 32) != 0) {
-          ckb_debug("disallow contract script because args is not start with "
-                    "rollup_script_hash");
-          return GW_ERROR_INVALID_ACCOUNT_SCRIPT;
-        }
-      }
-    }
-  }
-#pragma pop_macro("errno")
-
-  //TODO: use create_account_from_script fn
-  /* Same logic from State::create_account() */
-  uint32_t id = gw_host->account_count; // tmp
-  const uint8_t zero_nonce[GW_VALUE_BYTES] = {0};
-  uint8_t account_key[GW_KEY_BYTES];
-  
-  // store(account_nonce_key -> zero_nonce)
-  gw_build_account_field_key(id, GW_ACCOUNT_NONCE, account_key);
-  gw_update_raw(account_key, zero_nonce);
-  
-  // store(script_hash_key -> script_hash)
-  gw_build_account_field_key(id, GW_ACCOUNT_SCRIPT_HASH, account_key);
-  gw_update_raw(account_key, script_hash);
-
-  // store(script_hash -> account_id)
-  uint8_t script_hash_to_id_key[GW_KEY_BYTES];
-  uint8_t script_hash_to_id_value[GW_VALUE_BYTES] = {0};
-  gw_build_script_hash_to_account_id_key(script_hash, script_hash_to_id_key);
-  memcpy(script_hash_to_id_value, (uint8_t *)(&id), 4);
-  gw_update_raw(script_hash_to_id_key, script_hash_to_id_value);
-
-  // store(script hash -> script_hash)
-  uint8_t short_script_hash_to_script_key[32] = {0};
-  ret = gw_build_short_script_hash_to_script_hash_key(
-    script_hash, GW_DEFAULT_SHORT_SCRIPT_HASH_LEN,
-    short_script_hash_to_script_key
-  );
-  if (ret != 0) return ret;
-  gw_update_raw(short_script_hash_to_script_key, script_hash);
-
-  // insert script: store_data(script_hash -> script)
-  ret = gw_store_data(script_len, script);
-  if (ret != 0) return ret;
-
-  // account_count++
-  gw_host->account_count++;
-
-  // return id
-  *account_id_ptr = id;
-  dbg_print("new account id = %d was created.", id);
-
-  return ret;
-}
-
-// void create_account(uint8_t script_hash[GW_KEY_BYTES], uint32_t id) {
-// }
-
-// create account by script and return the new account id
-uint32_t create_account_from_script(uint8_t *script, uint64_t script_len) {
-  // uint8_t script_hash_type;
-  // memcpy(&script_hash_type, script + 8, sizeof(uint8_t));
-  // dbg_print("script_hash_type = %d", script_hash_type);
-  // TODO:
-  // if (script_hash_type != 1) { //TODO:
-  //   dbg_print("AccountError::UnknownScript");
-  // }
-  
-  // store_data(script_hash -> script)
-  uint8_t script_hash[GW_KEY_BYTES];
-  blake2b_hash(script_hash, script, script_len);
-  gw_store_data(script_len, script);
-
-  // create account with script_hash
-  uint32_t id = gw_host->account_count;
-  const uint8_t zero_nonce[GW_VALUE_BYTES] = {0};
-
-  // store(account_nonce_key -> zero_nonce)
-  uint8_t account_nonce_key[GW_KEY_BYTES];
-  gw_build_account_field_key(id, GW_ACCOUNT_NONCE, account_nonce_key);
-  gw_update_raw(account_nonce_key, zero_nonce);
-  
-  // store(script_hash_key -> script_hash)
-  uint8_t account_script_hash_key[GW_KEY_BYTES];
-  gw_build_account_field_key(id, GW_ACCOUNT_SCRIPT_HASH, account_script_hash_key);
-  gw_update_raw(account_script_hash_key, script_hash);
-
-  // store(script_hash -> account_id)
-  uint8_t script_hash_to_id_key[GW_KEY_BYTES];
-  uint8_t script_hash_to_id_value[GW_VALUE_BYTES] = {0};
-  gw_build_script_hash_to_account_id_key(script_hash, script_hash_to_id_key);
-  // FIXME: id may be more than 256
-  memcpy(script_hash_to_id_value, (uint8_t *)(&id), 4);
-  gw_update_raw(script_hash_to_id_key, script_hash_to_id_value);
-
-  /* init short script hash -> script_hash */
-  uint8_t short_script_hash_to_script_key[32] = {0};
-  gw_build_short_script_hash_to_script_hash_key(
-    script_hash, GW_DEFAULT_SHORT_SCRIPT_HASH_LEN,
-    short_script_hash_to_script_key
-  );
-  gw_update_raw(short_script_hash_to_script_key, script_hash);
-
-  // account_count++
-  dbg_print("new account id = %d was created.", id);
-  return gw_host->account_count++;
-}
-
-int init() {
-  // init block_hash
-  gw_host->block_hash = bytes32({7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7});
-
-  // TODO: build RollupConfig, @see polyjuice-tests/src/helper.rs
-  // init rollup_config
-  const uint8_t rollup_config[] = {189, 1, 0, 0, 60, 0, 0, 0, 92, 0, 0, 0, 124, 0, 0, 0, 156, 0, 0, 0, 188, 0, 0, 0, 220, 0, 0, 0, 252, 0, 0, 0, 28, 1, 0, 0, 60, 1, 0, 0, 68, 1, 0, 0, 76, 1, 0, 0, 84, 1, 0, 0, 85, 1, 0, 0, 89, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 161, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 162, 22, 32, 241, 19, 215, 157, 151, 224, 246, 229, 9, 24, 60, 121, 13, 182, 82, 23, 174, 212, 233, 95, 5, 215, 202, 209, 205, 163, 74, 191, 27, 11};
-  gw_host->rollup_config_size = sizeof(rollup_config);
-  memcpy(gw_host->rollup_config, rollup_config, gw_host->rollup_config_size);
-  
-  
-// TODO: build_script()
-// build_script(g_script_code_hash, g_script_hash_type, script_args, SCRIPT_ARGS_LEN, &new_script_seg);
-
-  uint32_t new_id = -1;
-  // id = 0
-  bytes reserved_account_script
-    = from_hex("35000000100000003000000031000000a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a10100000000");
-  new_id = create_account_from_script((uint8_t *)reserved_account_script.data(),
-                                      reserved_account_script.size());
-  // id = 1
-  bytes ckb_account_script
-    = from_hex("75000000100000003000000031000000a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a20140000000a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a90000000000000000000000000000000000000000000000000000000000000000");
-  new_id = create_account_from_script((uint8_t *)ckb_account_script.data(),
-                                      ckb_account_script.size());
-  // id = 2
-  bytes meta_account_script
-     = from_hex("590000001000000030000000310000001620f113d79d97e0f6e509183c790db65217aed4e95f05d7cad1cda34abf1b0b0124000000a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a901000000");
-  new_id = create_account_from_script((uint8_t *)meta_account_script.data(),
-                                      meta_account_script.size());
-  // id = 3
-  bytes block_producer_script = from_hex("69000000100000003000000031000000aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa0134000000a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a99999999999999999999999999999999999999999");
-  new_id = create_account_from_script((uint8_t *)block_producer_script.data(),
-                                      block_producer_script.size());
-  // id = 4
-  bytes build_eth_l2_script = from_hex("69000000100000003000000031000000aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa0134000000a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a90101010101010101010101010101010101010101");
-
-  new_id = create_account_from_script((uint8_t *)build_eth_l2_script.data(),
-                                      build_eth_l2_script.size());
-  mock_mint_sudt(1, new_id, 40000);
-  
-  // TODO: init destructed key
-  const uint8_t zero_nonce[32] = {0};
-  const uint8_t poly_destructed_key[32] = {5, 0, 0, 0, 255, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-  gw_update_raw(poly_destructed_key, zero_nonce);
-
-  print_state();
-
-  return 0;
-}
diff --git a/gwos-evm/polyjuice-tests/fuzz/polyjuice_fuzzer.cc b/gwos-evm/polyjuice-tests/fuzz/polyjuice_fuzzer.cc
new file mode 100644
index 000000000..0d50603b1
--- /dev/null
+++ b/gwos-evm/polyjuice-tests/fuzz/polyjuice_fuzzer.cc
@@ -0,0 +1,161 @@
+#include <evmone/evmone.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+
+#include "api.h"
+#include "ckb_syscalls.h"
+#define GW_GENERATOR
+#define CKB_C_STDLIB_CKB_SYSCALLS_H_
+#define CREATOR_ID 1
+#define CHAIN_ID 1
+#include "polyjuice.h"
+#include "godwoken.h"
+
+inline evmc::uint256be generate_interesting_value(uint8_t b) noexcept
+{
+    const auto s = (b >> 6) & 0b11;
+    const auto fill = (b >> 5) & 0b1;
+    const auto above = (b >> 4) & 0b1;
+    const auto val = b & 0b1111;
+
+    auto z = evmc::uint256be{};
+
+    const size_t size = s == 0 ? 1 : 1 << (s + 2);
+
+    if (fill)
+    {
+        for (auto i = sizeof(z) - size; i < sizeof(z); ++i)
+            z.bytes[i] = 0xff;
+    }
+
+    if (above)
+        z.bytes[sizeof(z) - size % sizeof(z) - 1] ^= val;
+    else
+        z.bytes[sizeof(z) - size] ^= val << 4;
+
+    return z;
+}
+
+inline evmc::address generate_interesting_address(uint8_t b) noexcept
+{
+    const auto s = (b >> 6) & 0b11;
+    const auto fill = (b >> 5) & 0b1;
+    const auto above = (b >> 4) & 0b1;
+    const auto val = b & 0b1111;
+
+    auto z = evmc::address{};
+
+    const size_t size = s == 3 ? 20 : 1 << s;
+
+    if (fill)
+    {
+        for (auto i = sizeof(z) - size; i < sizeof(z); ++i)
+            z.bytes[i] = 0xff;
+    }
+
+    if (above)
+        z.bytes[sizeof(z) - size % sizeof(z) - 1] ^= val;
+    else
+        z.bytes[sizeof(z) - size] ^= val << 4;
+
+    return z;
+}
+
+mol_seg_t build_Bytes(uint8_t* ptr, uint32_t len) {
+  mol_builder_t b;
+  mol_seg_res_t res;
+  MolBuilder_Bytes_init(&b);
+  for (uint32_t i = 0; i < len; i++) {
+    MolBuilder_Bytes_push(&b, ptr[i]);
+  }
+  res = MolBuilder_Bytes_build(b);
+  return res.seg;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
+
+  if (size < 76) {
+    return -1; 
+  }
+  gw_reset();
+  uint8_t kind = ((data[0] >> 3) & 0b1) == 0 ? 0 : 3; // call: 0; create: 3
+  uint8_t native_transfer = (data[1] >> 3) & 0b1; // 1: native transfer tag
+  
+  evmc::address from_addr = generate_interesting_address(data[2]);
+  evmc::address to_addr = generate_interesting_address(data[3]);
+  evmc::address transfer_to = generate_interesting_address(data[4]);
+
+  // mock from_id
+  int offset = 5;
+  uint8_t mint[16] = {0};
+  memcpy(mint, data + offset, 16);
+  offset += 16;
+  uint32_t from_id;
+  gw_create_eoa_account(from_addr.bytes, mint, &from_id);
+ 
+  uint32_t to_id;
+  // mock to_id by creating contract account with code
+  if (kind == 0) {
+    gw_create_contract_account(to_addr.bytes, mint, data, size, &to_id);
+  } else {
+    to_id = CREATOR_ID;
+  }
+
+  uint8_t value[16];
+  memcpy(value, data + offset, 16);
+  offset += 16;
+
+  // mock tx
+  mol_builder_t b;
+  MolBuilder_RawL2Transaction_init(&b);
+  uint64_t chain_id = (uint64_t) CHAIN_ID;
+  MolBuilder_RawL2Transaction_set_chain_id(&b, (uint8_t*)(&chain_id), 8);
+  MolBuilder_RawL2Transaction_set_from_id(&b, (uint8_t*)(&from_id), 4);
+  MolBuilder_RawL2Transaction_set_to_id(&b, (uint8_t*)(&to_id), 4);
+  uint32_t nonce = 0;
+  MolBuilder_RawL2Transaction_set_nonce(&b, (uint8_t*)(&nonce), 4);
+  uint8_t prefix[7] = {0xFF, 0xFF, 0xFF, 'P', 'O', 'L', 'Y'};
+  uint8_t args[4096];
+  memcpy(args, prefix, 7); // prefix POLY
+  args[7] = kind; // EVMC_CREATE
+  uint32_t args_offset = 8;
+  
+  const auto gas_32bits = (data[1] << 24) | (data[2] << 16) | (data[3] << 8) | data[4];
+  uint64_t gas = (uint64_t)gas_32bits;
+  memcpy(args+args_offset, &gas, 8); // gas
+  args_offset += 8;
+  const auto tx_gas_price_8bits = data[10];
+  uint128_t gas_price = (uint128_t)tx_gas_price_8bits;
+  memcpy(args+args_offset, &gas_price, 16); // gas_price
+  args_offset += 16;
+  memcpy(args+args_offset, value, 16); // value
+  args_offset += 16;
+  uint32_t data_size = (uint32_t)size;
+  memcpy(args+args_offset, (uint8_t*)(&data_size), 4); // input data size
+  args_offset += 4;
+  memcpy(args+args_offset, data, size); //input data
+  args_offset += size;
+
+  if (native_transfer == 1) {
+    memcpy(args+args_offset, transfer_to.bytes, 20); // native transfer to  
+    args_offset += 20;
+  }
+
+  mol_seg_t bytes = build_Bytes(args, args_offset);
+  MolBuilder_RawL2Transaction_set_args(&b, bytes.ptr, bytes.size);
+  free(bytes.ptr);
+
+  mol_seg_res_t res = MolBuilder_RawL2Transaction_build(b);
+  if (MolReader_RawL2Transaction_verify(&res.seg, false) == MOL_OK) {
+    gw_set_tx(res.seg.ptr, res.seg.size);
+    int ret = run_polyjuice();
+    debug_print_int("polyjuice ret:", ret);
+    free(res.seg.ptr);
+    return 0;
+  }
+  return -1; // not add to corpus
+}
diff --git a/gwos-evm/polyjuice-tests/fuzz/polyjuice_generator_fuzzer.cc b/gwos-evm/polyjuice-tests/fuzz/polyjuice_generator_fuzzer.cc
deleted file mode 100644
index 6f3f8431f..000000000
--- a/gwos-evm/polyjuice-tests/fuzz/polyjuice_generator_fuzzer.cc
+++ /dev/null
@@ -1,146 +0,0 @@
-#include <stdint.h>
-#include <stddef.h>
-
-#define GW_GENERATOR
-/**
- * Layer 2 contract generator
- * The generator supposed to be run off-chain.
- * generator dynamic linking with the layer2 contract code,
- * and provides layer2 syscalls.
- * 
- * A program should be able to generate a post state after run the generator,
- * and should be able to use the states to construct a transaction that satifies
- * the validator.
- */
-#include "polyjuice.h"
-
-#define ASSERT_EQ(A, B) assert_eq(A, B, #A, #B, __FILE__, __LINE__)
-
-struct test_case {
-  bytes raw_tx;
-  bytes expected_result{};
-};
-
-bool execute_predefined_transactions() {
-  static int ret = init();
-  // TODO: ASSERT_EQ(0, ret)
-  if (ret != 0) {
-    dbg_print("failed to init mock_godwoken");
-    __builtin_trap();
-  }
-
-  // tmp code
-  // return true;
-
-  bool all_good = true;
-  // raw_msg built by RawL2Transaction builder
-  const test_case pre_defined_test_cases[] = {
-      {// create account and deploy getChainId contract
-       bytes({73, 1, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 37, 1, 0, 0, 255, 255, 255, 80, 79, 76, 89, 3, 240, 85, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 241, 0, 0, 0, 96, 128, 96, 64, 82, 52, 128, 21, 97, 0, 17, 87, 96, 0, 96, 0, 253, 91, 80, 97, 0, 23, 86, 91, 96, 204, 128, 97, 0, 37, 96, 0, 57, 96, 0, 243, 254, 96, 128, 96, 64, 82, 52, 128, 21, 96, 16, 87, 96, 0, 96, 0, 253, 91, 80, 96, 4, 54, 16, 96, 44, 87, 96, 0, 53, 96, 224, 28, 128, 99, 109, 76, 230, 60, 20, 96, 50, 87, 96, 44, 86, 91, 96, 0, 96, 0, 253, 91, 96, 56, 96, 76, 86, 91, 96, 64, 81, 96, 67, 145, 144, 96, 112, 86, 91, 96, 64, 81, 128, 145, 3, 144, 243, 91, 96, 0, 96, 0, 70, 144, 80, 128, 145, 80, 80, 96, 92, 86, 80, 91, 144, 86, 96, 149, 86, 91, 96, 105, 129, 96, 138, 86, 91, 130, 82, 91, 80, 80, 86, 91, 96, 0, 96, 32, 130, 1, 144, 80, 96, 131, 96, 0, 131, 1, 132, 96, 98, 86, 91, 91, 146, 145, 80, 80, 86, 91, 96, 0, 129, 144, 80, 91, 145, 144, 80, 86, 91, 254, 162, 100, 105, 112, 102, 115, 88, 34, 18, 32, 3, 36, 140, 112, 116, 35, 57, 185, 199, 86, 232, 210, 111, 220, 122, 33, 250, 178, 163, 13, 127, 44, 169, 160, 247, 149, 71, 178, 184, 168, 61, 64, 100, 115, 111, 108, 99, 67, 0, 8, 2, 0, 51}),
-       bytes{}},
-      {// call getChainId contract
-       bytes({92, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 56, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 109, 76, 230, 60}),
-       bytes({0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2})},
-      
-      /* simple_storage test case */
-      // {bytes({89, 1, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 53, 1, 0, 0, 255, 255, 255, 80, 79, 76, 89, 3, 240, 85, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 96, 128, 96, 64, 82, 91, 96, 123, 96, 0, 96, 0, 80, 129, 144, 144, 144, 85, 80, 91, 97, 0, 24, 86, 91, 96, 219, 128, 97, 0, 38, 96, 0, 57, 96, 0, 243, 254, 96, 128, 96, 64, 82, 96, 4, 54, 16, 96, 41, 87, 96, 0, 53, 96, 224, 28, 128, 99, 96, 254, 71, 177, 20, 96, 47, 87, 128, 99, 109, 76, 230, 60, 20, 96, 91, 87, 96, 41, 86, 91, 96, 0, 96, 0, 253, 91, 96, 89, 96, 4, 128, 54, 3, 96, 32, 129, 16, 21, 96, 68, 87, 96, 0, 96, 0, 253, 91, 129, 1, 144, 128, 128, 53, 144, 96, 32, 1, 144, 146, 145, 144, 80, 80, 80, 96, 132, 86, 91, 0, 91, 52, 128, 21, 96, 103, 87, 96, 0, 96, 0, 253, 91, 80, 96, 110, 96, 148, 86, 91, 96, 64, 81, 128, 130, 129, 82, 96, 32, 1, 145, 80, 80, 96, 64, 81, 128, 145, 3, 144, 243, 91, 128, 96, 0, 96, 0, 80, 129, 144, 144, 144, 85, 80, 91, 80, 86, 91, 96, 0, 96, 0, 96, 0, 80, 84, 144, 80, 96, 162, 86, 91, 144, 86, 254, 162, 100, 105, 112, 102, 115, 88, 34, 18, 32, 4, 77, 175, 78, 52, 173, 255, 198, 28, 59, 185, 232, 244, 0, 97, 115, 25, 114, 211, 45, 181, 184, 194, 188, 151, 81, 35, 218, 158, 152, 140, 62, 100, 115, 111, 108, 99, 67, 0, 6, 6, 0, 51}),
-      //  bytes({})},
-
-      // {bytes({124, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 88, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 36, 0, 0, 0, 96, 254, 71, 177, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 16}),
-      //  bytes({})},
-
-      // {bytes({}),
-      //  bytes({})},
-
-      //  {bytes({}),
-      //  bytes({})},
-      // {// deploy BlockInfo contract
-      //  bytes({107, 4, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 71, 4, 0, 0, 255, 255, 255, 80, 79, 76, 89, 3, 0, 113, 2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 19, 4, 0, 0, 96, 128, 96, 64, 82, 91, 96, 0, 64, 96, 0, 96, 0, 80, 129, 144, 144, 96, 0, 25, 22, 144, 85, 80, 68, 96, 1, 96, 0, 80, 129, 144, 144, 144, 85, 80, 69, 96, 2, 96, 0, 80, 129, 144, 144, 144, 85, 80, 67, 96, 3, 96, 0, 80, 129, 144, 144, 144, 85, 80, 66, 96, 4, 96, 0, 80, 129, 144, 144, 144, 85, 80, 65, 96, 5, 96, 0, 97, 1, 0, 10, 129, 84, 129, 115, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 2, 25, 22, 144, 131, 115, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 22, 2, 23, 144, 85, 80, 115, 161, 173, 34, 122, 211, 105, 245, 147, 181, 243, 208, 204, 147, 74, 104, 26, 80, 129, 28, 178, 115, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 22, 96, 5, 96, 0, 144, 84, 144, 97, 1, 0, 10, 144, 4, 115, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 22, 115, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 22, 20, 21, 21, 97, 0, 249, 87, 96, 0, 96, 0, 253, 91, 127, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 96, 0, 27, 96, 0, 96, 0, 80, 84, 96, 0, 25, 22, 20, 21, 21, 97, 1, 52, 87, 96, 0, 96, 0, 253, 91, 98, 190, 188, 32, 96, 2, 96, 0, 80, 84, 20, 21, 21, 97, 1, 75, 87, 96, 0, 96, 0, 253, 91, 91, 97, 1, 81, 86, 91, 97, 2, 179, 128, 97, 1, 96, 96, 0, 57, 96, 0, 243, 254, 96, 128, 96, 64, 82, 52, 128, 21, 97, 0, 17, 87, 96, 0, 96, 0, 253, 91, 80, 96, 4, 54, 16, 97, 0, 103, 87, 96, 0, 53, 96, 224, 28, 128, 99, 24, 142, 195, 86, 20, 97, 0, 109, 87, 128, 99, 26, 147, 209, 195, 20, 97, 0, 139, 87, 128, 99, 182, 186, 255, 227, 20, 97, 0, 169, 87, 128, 99, 209, 168, 42, 157, 20, 97, 0, 199, 87, 128, 99, 242, 201, 236, 216, 20, 97, 0, 229, 87, 128, 99, 246, 201, 147, 136, 20, 97, 1, 3, 87, 97, 0, 103, 86, 91, 96, 0, 96, 0, 253, 91, 97, 0, 117, 97, 1, 33, 86, 91, 96, 64, 81, 97, 0, 130, 145, 144, 97, 2, 22, 86, 91, 96, 64, 81, 128, 145, 3, 144, 243, 91, 97, 0, 147, 97, 1, 51, 86, 91, 96, 64, 81, 97, 0, 160, 145, 144, 97, 2, 22, 86, 91, 96, 64, 81, 128, 145, 3, 144, 243, 91, 97, 0, 177, 97, 1, 69, 86, 91, 96, 64, 81, 97, 0, 190, 145, 144, 97, 2, 22, 86, 91, 96, 64, 81, 128, 145, 3, 144, 243, 91, 97, 0, 207, 97, 1, 87, 86, 91, 96, 64, 81, 97, 0, 220, 145, 144, 97, 1, 222, 86, 91, 96, 64, 81, 128, 145, 3, 144, 243, 91, 97, 0, 237, 97, 1, 134, 86, 91, 96, 64, 81, 97, 0, 250, 145, 144, 97, 2, 22, 86, 91, 96, 64, 81, 128, 145, 3, 144, 243, 91, 97, 1, 11, 97, 1, 152, 86, 91, 96, 64, 81, 97, 1, 24, 145, 144, 97, 1, 250, 86, 91, 96, 64, 81, 128, 145, 3, 144, 243, 91, 96, 0, 96, 4, 96, 0, 80, 84, 144, 80, 97, 1, 48, 86, 91, 144, 86, 91, 96, 0, 96, 2, 96, 0, 80, 84, 144, 80, 97, 1, 66, 86, 91, 144, 86, 91, 96, 0, 96, 1, 96, 0, 80, 84, 144, 80, 97, 1, 84, 86, 91, 144, 86, 91, 96, 0, 96, 5, 96, 0, 144, 84, 144, 97, 1, 0, 10, 144, 4, 115, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 22, 144, 80, 97, 1, 131, 86, 91, 144, 86, 91, 96, 0, 96, 3, 96, 0, 80, 84, 144, 80, 97, 1, 149, 86, 91, 144, 86, 91, 96, 0, 96, 0, 96, 0, 80, 84, 144, 80, 97, 1, 167, 86, 91, 144, 86, 97, 2, 124, 86, 91, 97, 1, 183, 129, 97, 2, 50, 86, 91, 130, 82, 91, 80, 80, 86, 91, 97, 1, 199, 129, 97, 2, 69, 86, 91, 130, 82, 91, 80, 80, 86, 91, 97, 1, 215, 129, 97, 2, 113, 86, 91, 130, 82, 91, 80, 80, 86, 91, 96, 0, 96, 32, 130, 1, 144, 80, 97, 1, 243, 96, 0, 131, 1, 132, 97, 1, 174, 86, 91, 91, 146, 145, 80, 80, 86, 91, 96, 0, 96, 32, 130, 1, 144, 80, 97, 2, 15, 96, 0, 131, 1, 132, 97, 1, 190, 86, 91, 91, 146, 145, 80, 80, 86, 91, 96, 0, 96, 32, 130, 1, 144, 80, 97, 2, 43, 96, 0, 131, 1, 132, 97, 1, 206, 86, 91, 91, 146, 145, 80, 80, 86, 91, 96, 0, 97, 2, 61, 130, 97, 2, 80, 86, 91, 144, 80, 91, 145, 144, 80, 86, 91, 96, 0, 129, 144, 80, 91, 145, 144, 80, 86, 91, 96, 0, 115, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 130, 22, 144, 80, 91, 145, 144, 80, 86, 91, 96, 0, 129, 144, 80, 91, 145, 144, 80, 86, 91, 254, 162, 100, 105, 112, 102, 115, 88, 34, 18, 32, 113, 236, 22, 117, 175, 248, 197, 236, 108, 166, 237, 165, 131, 213, 225, 213, 35, 139, 217, 89, 232, 176, 199, 158, 172, 177, 24, 183, 62, 194, 199, 114, 100, 115, 111, 108, 99, 67, 0, 8, 2, 0, 51}),
-      //  bytes({})},
-
-      // {// getGenesisHash()                     fn_sighash: f6c99388
-      //  bytes({92, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 56, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 246, 201, 147, 136}),
-      //  from_hex("0707070707070707070707070707070707070707070707070707070707070707")},
-
-      // // getDifficulty() => 2500000000000000, fn_sighash: b6baffe3
-      // bytes({92, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 56, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 182, 186, 255, 227}),
-      // from_hex(""),
-
-      //   // getGasLimit()                        fn_sighash: 1a93d1c3
-      //   bytes({92, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 56, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 26, 147, 209, 195}),
-      //   // getNumber()                          fn_sighash: f2c9ecd8
-      //   bytes({92, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 56, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 242, 201, 236, 216}),
-      //   // getTimestamp()                       fn_sighash: 188ec356
-      //   bytes({92, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 56, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 24, 142, 195, 86}),
-      //   // getCoinbase()                        fn_sighash: d1a82a9d
-      //   bytes({92, 0, 0, 0, 20, 0, 0, 0, 24, 0, 0, 0, 28, 0, 0, 0, 32, 0, 0, 0, 4, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 56, 0, 0, 0, 255, 255, 255, 80, 79, 76, 89, 0, 8, 82, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 209, 168, 42, 157})
-      // 000000000000000000000000a1ad227ad369f593b5f3d0cc934a681a50811cb2
-  };
-
-  for (auto &&tc : pre_defined_test_cases) {
-    static uint raw_tx_idx = 0;
-    in.raw_tx = tc.raw_tx; // load_l2_transaction from pre_defined_test_cases
-    
-    ret = run_polyjuice();
-    if (ret != 0) {
-      dbg_print("run_polyjuice failed, result_code: %d", ret);
-      all_good = false;
-      // __builtin_trap();
-    }
-    //TODO: print RunResult as evmc_result and assert the result is expected
-    if (tc.expected_result.size() > 0) {
-      // TODO:
-      // ASSERT_EQ(bytes_view(tc.expected_result,)
-      // )
-    }
-    ++raw_tx_idx;
-    dbg_print("====================== pre_defined_test_cases[%d] finished ======================", raw_tx_idx);
-  }
-
-  if (!all_good) {
-    dbg_print("warn: execute_predefined_transactions failed \n");
-    __builtin_trap();
-  }
-  dbg_print("Predefined_transactions are all good.\n");
-  return all_good;
-}
-
-bool is_predefined_test_passed = execute_predefined_transactions();
-extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size) {
-  dbg_print("Input Data Size: %d", size);
-
-  mol_seg_t l2transaction_seg;
-  l2transaction_seg.ptr = data;
-  l2transaction_seg.size = size;
-  if (MolReader_RawL2Transaction_verify(&l2transaction_seg, false) == MOL_OK) {
-    mol_seg_t args_bytes_seg = MolReader_RawL2Transaction_get_args(&l2transaction_seg);
-    mol_seg_t args_seg = MolReader_Bytes_raw_bytes(&args_bytes_seg);
-    if (args_seg.size >= 8 + 8 + 16 + 16 + 4) {
-      // reduce gas_limit to avoid timeout while fuzzing
-      int64_t gas_limit;
-      memcpy(&gas_limit, args_seg.ptr + 8, sizeof(int64_t));
-      dbg_print("gas_limit: %ld", gas_limit);
-      if (gas_limit > 5500000) {
-        // The recommended gas limit in EIP-150 is 5.5 million.
-        // (std::numeric_limits<int64_t>::max() >> 40) is close to 5.5 * 10^6
-        // We make the max_gas_limit less than (std::numeric_limits<int64_t>::max() >> 38).
-        gas_limit = gas_limit >> 38;
-        dbg_print("gas_limit: %ld", gas_limit);
-        memcpy(args_seg.ptr + 8, &gas_limit, sizeof(int64_t));
-      }      
-    }
-  }
-
-  in.raw_tx = bytes(data, size);
-
-  // const auto res = polyjuice_execute();
-  run_polyjuice();
-
-  //TODO: check the RunResult
-
-  // temp code
-  // if (size >= 0)
-  //   __builtin_trap();
-
-  return 0;
-}
diff --git a/gwos/c/generator_utils.h b/gwos/c/generator_utils.h
index 901575025..d90987f1a 100644
--- a/gwos/c/generator_utils.h
+++ b/gwos/c/generator_utils.h
@@ -66,9 +66,9 @@ typedef struct gw_context_t {
   gw_store_data_fn sys_store_data;
   gw_get_block_hash_fn sys_get_block_hash;
   gw_recover_account_fn sys_recover_account;
-  gw_bn_add sys_bn_add;
-  gw_bn_mul sys_bn_mul;
-  gw_bn_pairing sys_bn_pairing;
+  gw_bn_add_fn sys_bn_add;
+  gw_bn_mul_fn sys_bn_mul;
+  gw_bn_pairing_fn sys_bn_pairing;
   gw_log_fn sys_log;
   gw_pay_fee_fn sys_pay_fee;
   gw_get_registry_address_by_script_hash_fn
diff --git a/gwos/c/gw_def.h b/gwos/c/gw_def.h
index ac5dcabf4..7fc874837 100644
--- a/gwos/c/gw_def.h
+++ b/gwos/c/gw_def.h
@@ -112,7 +112,7 @@ typedef int (*gw_create_fn)(struct gw_context_t *ctx, uint8_t *script,
  *
  * Fails on invalid input
  */
-typedef int (*gw_bn_add)(const uint8_t *input, const size_t input_size,
+typedef int (*gw_bn_add_fn)(const uint8_t *input, const size_t input_size,
                          uint8_t *output);
 
 /**
@@ -122,7 +122,7 @@ typedef int (*gw_bn_add)(const uint8_t *input, const size_t input_size,
  *
  * Fails on invalid input
  */
-typedef int (*gw_bn_mul)(const uint8_t *input, const size_t input_size,
+typedef int (*gw_bn_mul_fn)(const uint8_t *input, const size_t input_size,
                          uint8_t *output);
 
 /**
@@ -138,7 +138,7 @@ typedef int (*gw_bn_mul)(const uint8_t *input, const size_t input_size,
  *   2. any of the inputs are not elements of the respective group are not
  * encoded correctly
  */
-typedef int (*gw_bn_pairing)(const uint8_t *input, const size_t input_size,
+typedef int (*gw_bn_pairing_fn)(const uint8_t *input, const size_t input_size,
                              uint8_t *output);
 
 /**
diff --git a/gwos/c/validator_utils.h b/gwos/c/validator_utils.h
index b84e27a7e..80b4e7563 100644
--- a/gwos/c/validator_utils.h
+++ b/gwos/c/validator_utils.h
@@ -71,9 +71,9 @@ typedef struct gw_context_t {
   gw_recover_account_fn sys_recover_account;
   gw_log_fn sys_log;
   gw_pay_fee_fn sys_pay_fee;
-  gw_bn_add sys_bn_add;
-  gw_bn_mul sys_bn_mul;
-  gw_bn_pairing sys_bn_pairing;
+  gw_bn_add_fn sys_bn_add;
+  gw_bn_mul_fn sys_bn_mul;
+  gw_bn_pairing_fn sys_bn_pairing;
   gw_get_registry_address_by_script_hash_fn
       sys_get_registry_address_by_script_hash;
   gw_get_script_hash_by_registry_address_fn