Analysis Run

[codex:223308] OpenAI Codex v0.77.0 (research preview)
[codex:223308] --------
[codex:223308] workdir: /tmp/codex-multi-03f3_i7d
[codex:223308] model: gpt-5.2-codex
[codex:223308] provider: openai
[codex:223308] approval: never
[codex:223308] sandbox: read-only
[codex:223308] reasoning effort: xhigh
[codex:223308] reasoning summaries: auto
[codex:223308] session id: 019b8633-6740-7670-a74a-71bcac636cb8
[codex:223308] --------
[codex:223308] user
[codex:223308] You are a profit-focused exploit hunter analyzing EVM bytecode. Your ONLY goal is finding ways to extract value (ETH, tokens, NFTs) from this contract.
[codex:223308] 
[codex:223308] Read `BYTECODE_BUNDLE.txt` completely before concluding.
[codex:223308] 
[codex:223308] ONLY REPORT if you find a CONCRETE, EXPLOITABLE path to profit. We do NOT care about:
[codex:223308] - Gas inefficiency, code quality, or best practices
[codex:223308] - Theoretical vulnerabilities without a clear extraction path
[codex:223308] - Generic footguns (unchecked return values, etc.) unless they enable theft
[codex:223308] - Issues requiring social engineering or off-chain coordination
[codex:223308] 
[codex:223308] PATTERNS WORTH INVESTIGATING in bytecode:
[codex:223308] - CALL/DELEGATECALL with controllable destination or calldata
[codex:223308] - Value transfers (CALL with non-zero value) without prior CALLER/ORIGIN checks
[codex:223308] - SSTORE to low slots (0-10) that might be owner/admin storage
[codex:223308] - ecrecover (signature validation) - look for missing nonce/replay protection
[codex:223308] - External calls before state updates (reentrancy)
[codex:223308] - SELFDESTRUCT with controllable beneficiary
[codex:223308] - Proxy patterns (DELEGATECALL to storage slot) with unprotected upgrade paths
[codex:223308] 
[codex:223308] For each finding, you MUST explain:
[codex:223308] 1. The specific bytecode pattern/offsets that indicate the vulnerability
[codex:223308] 2. The concrete sequence of transactions to extract value
[codex:223308] 3. Why you believe this is exploitable (not just suspicious)
[codex:223308] 
[codex:223308] If you cannot identify a concrete profit path from bytecode alone: set no_findings=true.
[codex:223308] Do NOT hallucinate. Bytecode-only analysis is limited - be honest about uncertainty.
[codex:223308] 
[codex:223308] Output MUST be valid JSON matching the provided schema.
[codex:223308] - severity: info, low, medium, high, critical (use high/critical ONLY for clear extraction paths)
[codex:223308] - category: access_control, reentrancy, math, oracle, upgradeability, auth, other
[codex:223308] mcp startup: no servers
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Reading BYTECODE_BUNDLE.txt**
[codex:223308] exec
[codex:223308] /bin/bash -lc ls in /tmp/codex-multi-03f3_i7d succeeded in 5ms:
[codex:223308] BYTECODE_BUNDLE.txt
[codex:223308] codex-output-schema.json
[codex:223308] exec
[codex:223308] /bin/bash -lc 'cat BYTECODE_BUNDLE.txt' in /tmp/codex-multi-03f3_i7d succeeded in 5ms:
[codex:223308] Runtime bytecode bundle for best-effort auditing.
[codex:223308] Note: without verified source, conclusions are low-confidence unless a concrete pattern is visible.
[codex:223308] 
[codex:223308] FILE: runtime_bytecode.hex
[codex:223308] 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
[codex:223308] 
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Decoding bytecode structure and functions**
[codex:223308] thinking
[codex:223308] **Examining deposit and withdrawal function interactions**
[codex:223308] 
[codex:223308] I'm analyzing how the deposit and withdrawal functions interact with balances and ownership checks, especially focusing on whether non-owners can increase their credited balance improperly. I’m considering parsing the bytecode further with a Python disassembler to clarify the token-related function logic and spot potential flaws.
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip()
[codex:223308] code=code.split('\\n')[0]
[codex:223308] # first hex string is runtime bytecode
[codex:223308] hexstr=code
[codex:223308] # convert to bytes
[codex:223308] b=bytes.fromhex(hexstr)
[codex:223308] 
[codex:223308] # EVM opcode table
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] def disasm(start=0, end=None):
[codex:223308]     i=start
[codex:223308]     out=[]
[codex:223308]     while i < (len(b) if end is None else end):
[codex:223308]         op=b[i]
[codex:223308]         name=opcodes.get(op, 'UNKNOWN')
[codex:223308]         if name.startswith('PUSH'):
[codex:223308]             n=op-0x5f
[codex:223308]             data=b[i+1:i+1+n]
[codex:223308]             out.append((i, name, data.hex()))
[codex:223308]             i+=1+n
[codex:223308]         else:
[codex:223308]             out.append((i, name, ''))
[codex:223308]             i+=1
[codex:223308]     return out
[codex:223308] 
[codex:223308] # disassemble key ranges to inspect
[codex:223308] # Let's disasm whole code but maybe large; we'll filter JUMPDEST labels
[codex:223308] ops=disasm()
[codex:223308] 
[codex:223308] # print all jumpdests and surrounding 10 ops
[codex:223308] jumpdests=[i for i,(pc,op,arg) in enumerate(ops) if op=='JUMPDEST']
[codex:223308] # create mapping pc->index
[codex:223308] pc_to_idx={pc:i for i,(pc,op,arg) in enumerate(ops)}
[codex:223308] 
[codex:223308] # just print disasm around function bodies addresses known
[codex:223308] for target in [0x234,0x25a,0x378,0x4c6,0x4de,0x7ab,0x7d0]:
[codex:223308]     if target in pc_to_idx:
[codex:223308]         idx=pc_to_idx[target]
[codex:223308]         print('\\n== disasm at 0x%x ==' % target)
[codex:223308]         for pc,op,arg in ops[idx:idx+120]:
[codex:223308]             if arg:
[codex:223308]                 print(f\"{pc:04x} {op} {arg}\")
[codex:223308]             else:
[codex:223308]                 print(f\"{pc:04x} {op}\")
[codex:223308]     else:
[codex:223308]         print('no target',hex(target))
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 19ms:
[codex:223308] 
[codex:223308] == disasm at 0x234 ==
[codex:223308] 0234 JUMPDEST
[codex:223308] 0235 PUSH1 02
[codex:223308] 0237 PUSH1 00
[codex:223308] 0239 SWAP1
[codex:223308] 023a SLOAD
[codex:223308] 023b SWAP1
[codex:223308] 023c PUSH2 0100
[codex:223308] 023f EXP
[codex:223308] 0240 SWAP1
[codex:223308] 0241 DIV
[codex:223308] 0242 PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 0257 AND
[codex:223308] 0258 DUP2
[codex:223308] 0259 JUMP
[codex:223308] 025a JUMPDEST
[codex:223308] 025b PUSH1 00
[codex:223308] 025d DUP1
[codex:223308] 025e SWAP1
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Extending function disassembly**
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcodes table minimal
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] def disasm(start=0, end=None):
[codex:223308]     i=start
[codex:223308]     out=[]
[codex:223308]     while i < (len(b) if end is None else end):
[codex:223308]         op=b[i]
[codex:223308]         name=opcodes.get(op, 'UNKNOWN')
[codex:223308]         if name.startswith('PUSH'):
[codex:223308]             n=op-0x5f
[codex:223308]             data=b[i+1:i+1+n]
[codex:223308]             out.append((i, name, data.hex()))
[codex:223308]             i+=1+n
[codex:223308]         else:
[codex:223308]             out.append((i, name, ''))
[codex:223308]             i+=1
[codex:223308]     return out
[codex:223308] 
[codex:223308] # get disasm from 0x05cc to 0x0710
[codex:223308] ops=disasm(0x05cc, 0x0710)
[codex:223308] for pc,op,arg in ops:
[codex:223308]     if arg:
[codex:223308]         print(f\"{pc:04x} {op} {arg}\")
[codex:223308]     else:
[codex:223308]         print(f\"{pc:04x} {op}\")
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 17ms:
[codex:223308] 05cc JUMPDEST
[codex:223308] 05cd PUSH1 01
[codex:223308] 05cf PUSH1 00
[codex:223308] 05d1 DUP5
[codex:223308] 05d2 PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 05e7 AND
[codex:223308] 05e8 PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 05fd AND
[codex:223308] 05fe DUP2
[codex:223308] 05ff MSTORE
[codex:223308] 0600 PUSH1 20
[codex:223308] 0602 ADD
[codex:223308] 0603 SWAP1
[codex:223308] 0604 DUP2
[codex:223308] 0605 MSTORE
[codex:223308] 0606 PUSH1 20
[codex:223308] 0608 ADD
[codex:223308] 0609 PUSH1 00
[codex:223308] 060b SHA3
[codex:223308] 060c SLOAD
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Resuming from hex offset 0x070c**
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcodes table minimal
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] def disasm(start=0, end=None):
[codex:223308]     i=start
[codex:223308]     out=[]
[codex:223308]     while i < (len(b) if end is None else end):
[codex:223308]         op=b[i]
[codex:223308]         name=opcodes.get(op, 'UNKNOWN')
[codex:223308]         if name.startswith('PUSH'):
[codex:223308]             n=op-0x5f
[codex:223308]             data=b[i+1:i+1+n]
[codex:223308]             out.append((i, name, data.hex()))
[codex:223308]             i+=1+n
[codex:223308]         else:
[codex:223308]             out.append((i, name, ''))
[codex:223308]             i+=1
[codex:223308]     return out
[codex:223308] 
[codex:223308] ops=disasm(0x06ef, 0x0770)
[codex:223308] for pc,op,arg in ops:
[codex:223308]     if arg:
[codex:223308]         print(f\"{pc:04x} {op} {arg}\")
[codex:223308]     else:
[codex:223308]         print(f\"{pc:04x} {op}\")
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 18ms:
[codex:223308] 06ef PUSH1 00
[codex:223308] 06f1 PUSH1 01
[codex:223308] 06f3 PUSH1 00
[codex:223308] 06f5 DUP6
[codex:223308] 06f6 PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 070b AND
[codex:223308] 070c PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 0721 AND
[codex:223308] 0722 DUP2
[codex:223308] 0723 MSTORE
[codex:223308] 0724 PUSH1 20
[codex:223308] 0726 ADD
[codex:223308] 0727 SWAP1
[codex:223308] 0728 DUP2
[codex:223308] 0729 MSTORE
[codex:223308] 072a PUSH1 20
[codex:223308] 072c ADD
[codex:223308] 072d PUSH1 00
[codex:223308] 072f SHA3
[codex:223308] 0730 DUP2
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Finishing function review**
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcodes table minimal
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] def disasm(start=0, end=None):
[codex:223308]     i=start
[codex:223308]     out=[]
[codex:223308]     while i < (len(b) if end is None else end):
[codex:223308]         op=b[i]
[codex:223308]         name=opcodes.get(op, 'UNKNOWN')
[codex:223308]         if name.startswith('PUSH'):
[codex:223308]             n=op-0x5f
[codex:223308]             data=b[i+1:i+1+n]
[codex:223308]             out.append((i, name, data.hex()))
[codex:223308]             i+=1+n
[codex:223308]         else:
[codex:223308]             out.append((i, name, ''))
[codex:223308]             i+=1
[codex:223308]     return out
[codex:223308] 
[codex:223308] ops=disasm(0x0750, 0x07ab)
[codex:223308] for pc,op,arg in ops:
[codex:223308]     if arg:
[codex:223308]         print(f\"{pc:04x} {op} {arg}\")
[codex:223308]     else:
[codex:223308]         print(f\"{pc:04x} {op}\")
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 19ms:
[codex:223308] 0750 UNKNOWN
[codex:223308] 0751 PUSH28 1979c4838342604051808473ffffffffffffffffffffffffffffffff
[codex:223308] 076e SELFDESTRUCT
[codex:223308] 076f SELFDESTRUCT
[codex:223308] 0770 SELFDESTRUCT
[codex:223308] 0771 SELFDESTRUCT
[codex:223308] 0772 AND
[codex:223308] 0773 PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 0788 AND
[codex:223308] 0789 DUP2
[codex:223308] 078a MSTORE
[codex:223308] 078b PUSH1 20
[codex:223308] 078d ADD
[codex:223308] 078e DUP4
[codex:223308] 078f DUP2
[codex:223308] 0790 MSTORE
[codex:223308] 0791 PUSH1 20
[codex:223308] 0793 ADD
[codex:223308] 0794 DUP3
[codex:223308] 0795 DUP2
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Adjusting disassembly start address**
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcodes table minimal
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] def disasm(start=0, end=None):
[codex:223308]     i=start
[codex:223308]     out=[]
[codex:223308]     while i < (len(b) if end is None else end):
[codex:223308]         op=b[i]
[codex:223308]         name=opcodes.get(op, 'UNKNOWN')
[codex:223308]         if name.startswith('PUSH'):
[codex:223308]             n=op-0x5f
[codex:223308]             data=b[i+1:i+1+n]
[codex:223308]             out.append((i, name, data.hex()))
[codex:223308]             i+=1+n
[codex:223308]         else:
[codex:223308]             out.append((i, name, ''))
[codex:223308]             i+=1
[codex:223308]     return out
[codex:223308] 
[codex:223308] ops=disasm(0x072d, 0x07ab)
[codex:223308] for pc,op,arg in ops:
[codex:223308]     if arg:
[codex:223308]         print(f\"{pc:04x} {op} {arg}\")
[codex:223308]     else:
[codex:223308]         print(f\"{pc:04x} {op}\")
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 17ms:
[codex:223308] 072d PUSH1 00
[codex:223308] 072f SHA3
[codex:223308] 0730 DUP2
[codex:223308] 0731 SWAP1
[codex:223308] 0732 SSTORE
[codex:223308] 0733 POP
[codex:223308] 0734 PUSH32 f2b8bfae9ea4da2137f22ddb93ce6ebeb5aee91bb362568ed003f1cb7b1979c4
[codex:223308] 0755 DUP4
[codex:223308] 0756 DUP4
[codex:223308] 0757 TIMESTAMP
[codex:223308] 0758 PUSH1 40
[codex:223308] 075a MLOAD
[codex:223308] 075b DUP1
[codex:223308] 075c DUP5
[codex:223308] 075d PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 0772 AND
[codex:223308] 0773 PUSH20 ffffffffffffffffffffffffffffffffffffffff
[codex:223308] 0788 AND
[codex:223308] 0789 DUP2
[codex:223308] 078a MSTORE
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Analyzing token withdrawal and reentrancy risks**
[codex:223308] 
[codex:223308] I'm carefully unpacking a complex function that interacts with a token contract, calling two token functions before updating a balance mapping. I suspect it facilitates token withdrawals by users and might have a reentrancy vulnerability since external calls happen prior to clearing balances. To confirm, I'm symbolically simulating the EVM stack to decode call arguments and execution flow.
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcode table with size
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] # build instructions
[codex:223308] instrs=[]
[codex:223308] pc=0
[codex:223308] while pc < len(b):
[codex:223308]     op=b[pc]
[codex:223308]     name=opcodes.get(op, 'UNKNOWN')
[codex:223308]     if name.startswith('PUSH'):
[codex:223308]         n=op-0x5f
[codex:223308]         data=b[pc+1:pc+1+n]
[codex:223308]         instrs.append((pc,name,int.from_bytes(data,'big'),n+1))
[codex:223308]         pc+=1+n
[codex:223308]     else:
[codex:223308]         instrs.append((pc,name,None,1))
[codex:223308]         pc+=1
[codex:223308] 
[codex:223308] # map pc->index
[codex:223308] pc_index={pc:i for i,(pc,_,__,___) in enumerate(instrs)}
[codex:223308] 
[codex:223308] # simple symbolic execution
[codex:223308] start=0x04de
[codex:223308] end=0x06ea
[codex:223308] 
[codex:223308] stack=[]
[codex:223308] mem={}
[codex:223308] 
[codex:223308] # symbol helper
[codex:223308] sym_id=0
[codex:223308] def sym(name):
[codex:223308]     global sym_id
[codex:223308]     sym_id+=1
[codex:223308]     return f\"{name}{sym_id}\"
[codex:223308] 
[codex:223308] # initialize with function param a (address)
[codex:223308] stack.append('arg0')
[codex:223308] 
[codex:223308] pc=start
[codex:223308] steps=0
[codex:223308] while pc in pc_index and pc < end and steps < 2000:
[codex:223308]     steps+=1
[codex:223308]     i=pc_index[pc]
[codex:223308]     pc_val,op,arg,size=instrs[i]
[codex:223308]     # print trace near CALL to inspect
[codex:223308]     if pc_val in (0x0657,0x06df):
[codex:223308]         print('--- pc',hex(pc_val),op,'stack',stack)
[codex:223308]     # execute
[codex:223308]     if op.startswith('PUSH'):
[codex:223308]         stack.append(hex(arg) if arg is not None else '0x0')
[codex:223308]     elif op.startswith('DUP'):
[codex:223308]         n=int(op[3:])
[codex:223308]         stack.append(stack[-n])
[codex:223308]     elif op.startswith('SWAP'):
[codex:223308]         n=int(op[4:])
[codex:223308]         stack[-1],stack[-1-n]=stack[-1-n],stack[-1]
[codex:223308]     elif op=='POP':
[codex:223308]         stack.pop()
[codex:223308]     elif op=='SLOAD':
[codex:223308]         key=stack.pop(); stack.append(f\"SLOAD({key})\")
[codex:223308]     elif op=='SSTORE':
[codex:223308]         val=stack.pop(); key=stack.pop()
[codex:223308]     elif op=='CALLER':
[codex:223308]         stack.append('CALLER')
[codex:223308]     elif op=='CALLVALUE':
[codex:223308]         stack.append('CALLVALUE')
[codex:223308]     elif op=='MLOAD':
[codex:223308]         off=stack.pop(); stack.append(f\"MLOAD({off})\")
[codex:223308]     elif op=='MSTORE':
[codex:223308]         val=stack.pop(); off=stack.pop(); mem[str(off)]=val
[codex:223308]     elif op in ('ADD','SUB','MUL','DIV','AND','OR','XOR','EXP'):
[codex:223308]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a} {op} {b})\")
[codex:223308]     elif op in ('EQ','GT','LT'):
[codex:223308]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a} {op} {b})\")
[codex:223308]     elif op=='ISZERO':
[codex:223308]         a=stack.pop(); stack.append(f\"ISZERO({a})\")
[codex:223308]     elif op=='SHA3':
[codex:223308]         b_=stack.pop(); a_=stack.pop(); stack.append(f\"SHA3({a_},{b_})\")
[codex:223308]     elif op=='JUMPDEST':
[codex:223308]         pass
[codex:223308]     elif op=='JUMPI':
[codex:223308]         dest=stack.pop(); cond=stack.pop();
[codex:223308]         # assume success path -> jump
[codex:223308]         try:
[codex:223308]             # dest is hex string like '0x6d9'
[codex:223308]             if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]                 pc= int(dest,16)
[codex:223308]                 continue
[codex:223308]         except Exception:
[codex:223308]             pass
[codex:223308]         # fallback to next
[codex:223308]     elif op=='JUMP':
[codex:223308]         dest=stack.pop();
[codex:223308]         if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]             pc=int(dest,16); continue
[codex:223308]     elif op=='CALL':
[codex:223308]         # pop 7 args
[codex:223308]         out_size=stack.pop(); out_off=stack.pop(); in_size=stack.pop(); in_off=stack.pop(); value=stack.pop(); to=stack.pop(); gas=stack.pop();
[codex:223308]         stack.append(f\"CALL({to},value={value},in_off={in_off},in_size={in_size})\")
[codex:223308]     elif op=='RETURNDATASIZE':
[codex:223308]         stack.append('RETURNDATASIZE')
[codex:223308]     elif op=='RETURNDATACOPY':
[codex:223308]         # pop 3
[codex:223308]         stack.pop(); stack.pop(); stack.pop()
[codex:223308]     elif op=='EXTCODESIZE':
[codex:223308]         addr=stack.pop(); stack.append(f\"EXTCODESIZE({addr})\")
[codex:223308]     elif op=='REVERT':
[codex:223308]         # stop
[codex:223308]         break
[codex:223308]     # move pc
[codex:223308]     pc += size
[codex:223308] 
[codex:223308] print('Final pc',hex(pc),'stack top',stack[-6:])
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d exited 1 in 30ms:
[codex:223308] Traceback (most recent call last):
[codex:223308]   File "<stdin>", line 68, in <module>
[codex:223308] IndexError: list index out of range
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Troubleshooting symbolic execution stack issues**
[codex:223308] 
[codex:223308] I'm working through stack underflow problems during symbolic simulation by examining jump instructions and stack states closely; I want to refine the simulator to handle only jumps with constant destinations and add safeguards like stack length checks before operations to catch errors early. I'll also debug by printing program counters and stack contents to pinpoint where the underflow occurs.
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcode table with size
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] # build instructions
[codex:223308] instrs=[]
[codex:223308] pc=0
[codex:223308] while pc < len(b):
[codex:223308]     op=b[pc]
[codex:223308]     name=opcodes.get(op, 'UNKNOWN')
[codex:223308]     if name.startswith('PUSH'):
[codex:223308]         n=op-0x5f
[codex:223308]         data=b[pc+1:pc+1+n]
[codex:223308]         instrs.append((pc,name,int.from_bytes(data,'big'),n+1))
[codex:223308]         pc+=1+n
[codex:223308]     else:
[codex:223308]         instrs.append((pc,name,None,1))
[codex:223308]         pc+=1
[codex:223308] 
[codex:223308] pc_index={pc:i for i,(pc,_,__,___) in enumerate(instrs)}
[codex:223308] 
[codex:223308] start=0x04de
[codex:223308] end=0x06ea
[codex:223308] stack=['arg0']
[codex:223308] mem={}
[codex:223308] 
[codex:223308] pc=start
[codex:223308] steps=0
[codex:223308] 
[codex:223308] def pop():
[codex:223308]     if not stack:
[codex:223308]         raise IndexError('pop from empty')
[codex:223308]     return stack.pop()
[codex:223308] 
[codex:223308] def push(x):
[codex:223308]     stack.append(x)
[codex:223308] 
[codex:223308] while pc in pc_index and pc < end and steps < 2000:
[codex:223308]     steps+=1
[codex:223308]     pc_val,op,arg,size=instrs[pc_index[pc]]
[codex:223308]     if pc_val in (0x0657,0x06df):
[codex:223308]         print('--- pc',hex(pc_val),op,'stack depth',len(stack),'top',stack[-10:])
[codex:223308]     try:
[codex:223308]         if op.startswith('PUSH'):
[codex:223308]             push(hex(arg))
[codex:223308]         elif op.startswith('DUP'):
[codex:223308]             n=int(op[3:])
[codex:223308]             push(stack[-n])
[codex:223308]         elif op.startswith('SWAP'):
[codex:223308]             n=int(op[4:])
[codex:223308]             stack[-1],stack[-1-n]=stack[-1-n],stack[-1]
[codex:223308]         elif op=='POP':
[codex:223308]             pop()
[codex:223308]         elif op=='SLOAD':
[codex:223308]             key=pop(); push(f\"SLOAD({key})\")
[codex:223308]         elif op=='SSTORE':
[codex:223308]             val=pop(); key=pop()
[codex:223308]         elif op=='CALLER':
[codex:223308]             push('CALLER')
[codex:223308]         elif op=='CALLVALUE':
[codex:223308]             push('CALLVALUE')
[codex:223308]         elif op=='MLOAD':
[codex:223308]             off=pop(); push(f\"MLOAD({off})\")
[codex:223308]         elif op=='MSTORE':
[codex:223308]             val=pop(); off=pop(); mem[str(off)]=val
[codex:223308]         elif op in ('ADD','SUB','MUL','DIV','AND','OR','XOR','EXP'):
[codex:223308]             b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]         elif op in ('EQ','GT','LT'):
[codex:223308]             b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]         elif op=='ISZERO':
[codex:223308]             a=pop(); push(f\"ISZERO({a})\")
[codex:223308]         elif op=='SHA3':
[codex:223308]             b_=pop(); a_=pop(); push(f\"SHA3({a_},{b_})\")
[codex:223308]         elif op=='JUMPDEST':
[codex:223308]             pass
[codex:223308]         elif op=='JUMPI':
[codex:223308]             dest=pop(); cond=pop()
[codex:223308]             # assume condition true if dest is constant
[codex:223308]             if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]                 pc=int(dest,16)
[codex:223308]                 continue
[codex:223308]         elif op=='JUMP':
[codex:223308]             dest=pop()
[codex:223308]             if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]                 pc=int(dest,16)
[codex:223308]                 continue
[codex:223308]         elif op=='CALL':
[codex:223308]             out_size=pop(); out_off=pop(); in_size=pop(); in_off=pop(); value=pop(); to=pop(); gas=pop();
[codex:223308]             push(f\"CALL(to={to},value={value},in_off={in_off},in_size={in_size})\")
[codex:223308]         elif op=='EXTCODESIZE':
[codex:223308]             addr=pop(); push(f\"EXTCODESIZE({addr})\")
[codex:223308]         elif op=='GAS':
[codex:223308]             push('GAS')
[codex:223308]         elif op=='SUB':
[codex:223308]             b=pop(); a=pop(); push(f\"({a} - {b})\")
[codex:223308]         elif op=='REVERT':
[codex:223308]             break
[codex:223308]         elif op=='STOP':
[codex:223308]             break
[codex:223308]         else:
[codex:223308]             # unhandled -> ignore (for our path we may not need)
[codex:223308]             pass
[codex:223308]     except Exception as e:
[codex:223308]         print('Error at',hex(pc_val),op,'stack',stack)
[codex:223308]         raise
[codex:223308]     pc += size
[codex:223308] 
[codex:223308] print('Finished at pc',hex(pc),'stack top',stack[-10:])
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 20ms:
[codex:223308] --- pc 0x657 PUSH4 stack depth 4 top ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)']
[codex:223308] --- pc 0x6df CALL stack depth 14 top ['0x23024408', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', '((MLOAD(0x40) ADD 0x4) ADD 0x20)', '0x0', 'MLOAD(0x40)', '(MLOAD(0x40) SUB ((MLOAD(0x40) ADD 0x4) ADD 0x20))', 'MLOAD(0x40)', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '(0x25ee SUB GAS)']
[codex:223308] Finished at pc 0x6ea stack top ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '0x23024408', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', '((MLOAD(0x40) ADD 0x4) ADD 0x20)']
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Analyzing smart contract call data setup**
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcode table with size
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',
[codex:223308] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] # build instructions
[codex:223308] instrs=[]
[codex:223308] pc=0
[codex:223308] while pc < len(b):
[codex:223308]     op=b[pc]
[codex:223308]     name=opcodes.get(op, 'UNKNOWN')
[codex:223308]     if name.startswith('PUSH'):
[codex:223308]         n=op-0x5f
[codex:223308]         data=b[pc+1:pc+1+n]
[codex:223308]         instrs.append((pc,name,int.from_bytes(data,'big'),n+1))
[codex:223308]         pc+=1+n
[codex:223308]     else:
[codex:223308]         instrs.append((pc,name,None,1))
[codex:223308]         pc+=1
[codex:223308] 
[codex:223308] pc_index={pc:i for i,(pc,_,__,___) in enumerate(instrs)}
[codex:223308] 
[codex:223308] start=0x04de
[codex:223308] end=0x06ea
[codex:223308] stack=['arg0']
[codex:223308] mem={}
[codex:223308] 
[codex:223308] pc=start
[codex:223308] steps=0
[codex:223308] 
[codex:223308] while pc in pc_index and pc < end and steps < 2000:
[codex:223308]     steps+=1
[codex:223308]     pc_val,op,arg,size=instrs[pc_index[pc]]
[codex:223308]     # debug: log mstore
[codex:223308]     if op=='MSTORE':
[codex:223308]         # peek
[codex:223308]         if len(stack)>=2:
[codex:223308]             val=stack[-1]; off=stack[-2]
[codex:223308]             print(f\"MSTORE about to write offset {off} value {val} at pc {hex(pc_val)}\")
[codex:223308]     if pc_val==0x0657:
[codex:223308]         print('Stack at 0x0657',stack)
[codex:223308]     if pc_val==0x06df:
[codex:223308]         print('Stack at 0x06df',stack)
[codex:223308]     # execute
[codex:223308]     def pop():
[codex:223308]         return stack.pop()
[codex:223308]     def push(x):
[codex:223308]         stack.append(x)
[codex:223308] 
[codex:223308]     if op.startswith('PUSH'):
[codex:223308]         push(hex(arg))
[codex:223308]     elif op.startswith('DUP'):
[codex:223308]         n=int(op[3:])
[codex:223308]         push(stack[-n])
[codex:223308]     elif op.startswith('SWAP'):
[codex:223308]         n=int(op[4:])
[codex:223308]         stack[-1],stack[-1-n]=stack[-1-n],stack[-1]
[codex:223308]     elif op=='POP':
[codex:223308]         pop()
[codex:223308]     elif op=='SLOAD':
[codex:223308]         key=pop(); push(f\"SLOAD({key})\")
[codex:223308]     elif op=='SSTORE':
[codex:223308]         val=pop(); key=pop();
[codex:223308]     elif op=='CALLER':
[codex:223308]         push('CALLER')
[codex:223308]     elif op=='CALLVALUE':
[codex:223308]         push('CALLVALUE')
[codex:223308]     elif op=='MLOAD':
[codex:223308]         off=pop(); push(f\"MLOAD({off})\")
[codex:223308]     elif op=='MSTORE':
[codex:223308]         val=pop(); off=pop(); mem[str(off)]=val
[codex:223308]     elif op in ('ADD','SUB','MUL','DIV','AND','OR','XOR','EXP'):
[codex:223308]         b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]     elif op in ('EQ','GT','LT'):
[codex:223308]         b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]     elif op=='ISZERO':
[codex:223308]         a=pop(); push(f\"ISZERO({a})\")
[codex:223308]     elif op=='SHA3':
[codex:223308]         b_=pop(); a_=pop(); push(f\"SHA3({a_},{b_})\")
[codex:223308]     elif op=='JUMPDEST':
[codex:223308]         pass
[codex:223308]     elif op=='JUMPI':
[codex:223308]         dest=pop(); cond=pop();
[codex:223308]         if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]             pc=int(dest,16); continue
[codex:223308]     elif op=='JUMP':
[codex:223308]         dest=pop();
[codex:223308]         if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]             pc=int(dest,16); continue
[codex:223308]     elif op=='CALL':
[codex:223308]         out_size=pop(); out_off=pop(); in_size=pop(); in_off=pop(); value=pop(); to=pop(); gas=pop();
[codex:223308]         push(f\"CALL(to={to},value={value},in_off={in_off},in_size={in_size})\")
[codex:223308]     elif op=='EXTCODESIZE':
[codex:223308]         addr=pop(); push(f\"EXTCODESIZE({addr})\")
[codex:223308]     elif op=='GAS':
[codex:223308]         push('GAS')
[codex:223308]     elif op=='REVERT':
[codex:223308]         break
[codex:223308]     # next
[codex:223308]     pc += size
[codex:223308] 
[codex:223308] print('Memory writes:',mem)
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 22ms:
[codex:223308] MSTORE about to write offset 0x0 value (MLOAD(0x40) ADD 0x20) at pc 0x529
[codex:223308] MSTORE about to write offset ((0x3af32abf AND 0xffffffff) MUL 0x100000000000000000000000000000000000000000000000000000000) value MLOAD(0x40) at pc 0x554
[codex:223308] MSTORE about to write offset ((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff) value (MLOAD(0x40) ADD 0x4) at pc 0x587
[codex:223308] MSTORE about to write offset ((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff) value 0x0 at pc 0x5ff
[codex:223308] MSTORE about to write offset 0x1 value (0x0 ADD 0x20) at pc 0x605
[codex:223308] Stack at 0x0657 ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)']
[codex:223308] MSTORE about to write offset ((0x23024408 AND 0xffffffff) MUL 0x100000000000000000000000000000000000000000000000000000000) value MLOAD(0x40) at pc 0x688
[codex:223308] MSTORE about to write offset ((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff) value (MLOAD(0x40) ADD 0x4) at pc 0x6bb
[codex:223308] Stack at 0x06df ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '0x23024408', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', '((MLOAD(0x40) ADD 0x4) ADD 0x20)', '0x0', 'MLOAD(0x40)', '(MLOAD(0x40) SUB ((MLOAD(0x40) ADD 0x4) ADD 0x20))', 'MLOAD(0x40)', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '(0x25ee SUB GAS)']
[codex:223308] Memory writes: {'0x0': '(MLOAD(0x40) ADD 0x20)', '((0x3af32abf AND 0xffffffff) MUL 0x100000000000000000000000000000000000000000000000000000000)': 'MLOAD(0x40)', '((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)': '(MLOAD(0x40) ADD 0x4)', '0x1': '(0x0 ADD 0x20)', '((0x23024408 AND 0xffffffff) MUL 0x100000000000000000000000000000000000000000000000000000000)': 'MLOAD(0x40)'}
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Analyzing EVM call and memory patterns**
[codex:223308] 
[codex:223308] I’m carefully examining the assembly around key call sites to decode function calls, arguments, and memory usage; the goal is to understand this contract’s logic and investigate possible vulnerabilities in token withdrawal by manually simulating stack and memory states.
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcode table
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] # build instructions
[codex:223308] instrs=[]
[codex:223308] pc=0
[codex:223308] while pc < len(b):
[codex:223308]     op=b[pc]
[codex:223308]     name=opcodes.get(op, 'UNKNOWN')
[codex:223308]     if name.startswith('PUSH'):
[codex:223308]         n=op-0x5f
[codex:223308]         data=b[pc+1:pc+1+n]
[codex:223308]         instrs.append((pc,name,int.from_bytes(data,'big'),n+1))
[codex:223308]         pc+=1+n
[codex:223308]     else:
[codex:223308]         instrs.append((pc,name,None,1))
[codex:223308]         pc+=1
[codex:223308] 
[codex:223308] pc_index={pc:i for i,(pc,_,__,___) in enumerate(instrs)}
[codex:223308] 
[codex:223308] start=0x04de
[codex:223308] end=0x06ea
[codex:223308] stack=['arg0']
[codex:223308] mem={}
[codex:223308] 
[codex:223308] pc=start
[codex:223308] steps=0
[codex:223308] 
[codex:223308] while pc in pc_index and pc < end and steps < 5000:
[codex:223308]     steps+=1
[codex:223308]     pc_val,op,arg,size=instrs[pc_index[pc]]
[codex:223308]     if pc_val in (0x05cc,0x061d,0x0657,0x06df):
[codex:223308]         print('pc',hex(pc_val),op,'stack',stack)
[codex:223308]     # simple exec
[codex:223308]     def pop():
[codex:223308]         return stack.pop()
[codex:223308]     def push(x):
[codex:223308]         stack.append(x)
[codex:223308] 
[codex:223308]     if op.startswith('PUSH'):
[codex:223308]         push(hex(arg))
[codex:223308]     elif op.startswith('DUP'):
[codex:223308]         n=int(op[3:])
[codex:223308]         push(stack[-n])
[codex:223308]     elif op.startswith('SWAP'):
[codex:223308]         n=int(op[4:])
[codex:223308]         stack[-1],stack[-1-n]=stack[-1-n],stack[-1]
[codex:223308]     elif op=='POP':
[codex:223308]         pop()
[codex:223308]     elif op=='SLOAD':
[codex:223308]         key=pop(); push(f\"SLOAD({key})\")
[codex:223308]     elif op=='SSTORE':
[codex:223308]         val=pop(); key=pop()
[codex:223308]     elif op=='CALLER':
[codex:223308]         push('CALLER')
[codex:223308]     elif op=='CALLVALUE':
[codex:223308]         push('CALLVALUE')
[codex:223308]     elif op=='MLOAD':
[codex:223308]         off=pop(); push(f\"MLOAD({off})\")
[codex:223308]     elif op=='MSTORE':
[codex:223308]         val=pop(); off=pop(); mem[str(off)]=val
[codex:223308]     elif op in ('ADD','SUB','MUL','DIV','AND','OR','XOR','EXP'):
[codex:223308]         b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]     elif op in ('EQ','GT','LT'):
[codex:223308]         b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]     elif op=='ISZERO':
[codex:223308]         a=pop(); push(f\"ISZERO({a})\")
[codex:223308]     elif op=='SHA3':
[codex:223308]         b_=pop(); a_=pop(); push(f\"SHA3({a_},{b_})\")
[codex:223308]     elif op=='JUMPDEST':
[codex:223308]         pass
[codex:223308]     elif op=='JUMPI':
[codex:223308]         dest=pop(); cond=pop();
[codex:223308]         if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]             pc=int(dest,16); continue
[codex:223308]     elif op=='JUMP':
[codex:223308]         dest=pop();
[codex:223308]         if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]             pc=int(dest,16); continue
[codex:223308]     elif op=='CALL':
[codex:223308]         out_size=pop(); out_off=pop(); in_size=pop(); in_off=pop(); value=pop(); to=pop(); gas=pop();
[codex:223308]         push(f\"CALL(to={to},value={value},in_off={in_off},in_size={in_size})\")
[codex:223308]     elif op=='EXTCODESIZE':
[codex:223308]         addr=pop(); push(f\"EXTCODESIZE({addr})\")
[codex:223308]     elif op=='GAS':
[codex:223308]         push('GAS')
[codex:223308]     elif op=='REVERT':
[codex:223308]         break
[codex:223308]     pc += size
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 21ms:
[codex:223308] pc 0x5cc JUMPDEST stack ['arg0', '0x0', 'arg0']
[codex:223308] pc 0x61d JUMPDEST stack ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0']
[codex:223308] pc 0x657 PUSH4 stack ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)']
[codex:223308] pc 0x6df CALL stack ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '0x23024408', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', '((MLOAD(0x40) ADD 0x4) ADD 0x20)', '0x0', 'MLOAD(0x40)', '(MLOAD(0x40) SUB ((MLOAD(0x40) ADD 0x4) ADD 0x20))', 'MLOAD(0x40)', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '(0x25ee SUB GAS)']
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Analyzing and correcting EVM memory simulation**
[codex:223308] exec
[codex:223308] /bin/bash -lc "python - <<'PY'
[codex:223308] import sys
[codex:223308] code=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].strip().split('\\n')[0]
[codex:223308] b=bytes.fromhex(code)
[codex:223308] # opcode table
[codex:223308] opcodes={
[codex:223308] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:223308] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:223308] 0x20:'SHA3',0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:223308] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:223308] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:223308] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:223308] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:223308] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:223308] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:223308] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:223308] }
[codex:223308] 
[codex:223308] # build instructions
[codex:223308] instrs=[]
[codex:223308] pc=0
[codex:223308] while pc < len(b):
[codex:223308]     op=b[pc]
[codex:223308]     name=opcodes.get(op, 'UNKNOWN')
[codex:223308]     if name.startswith('PUSH'):
[codex:223308]         n=op-0x5f
[codex:223308]         data=b[pc+1:pc+1+n]
[codex:223308]         instrs.append((pc,name,int.from_bytes(data,'big'),n+1))
[codex:223308]         pc+=1+n
[codex:223308]     else:
[codex:223308]         instrs.append((pc,name,None,1))
[codex:223308]         pc+=1
[codex:223308] 
[codex:223308] pc_index={pc:i for i,(pc,_,__,___) in enumerate(instrs)}
[codex:223308] 
[codex:223308] start=0x04de
[codex:223308] end=0x06ea
[codex:223308] stack=['arg0']
[codex:223308] mem={}
[codex:223308] 
[codex:223308] pc=start
[codex:223308] steps=0
[codex:223308] 
[codex:223308] while pc in pc_index and pc < end and steps < 5000:
[codex:223308]     steps+=1
[codex:223308]     pc_val,op,arg,size=instrs[pc_index[pc]]
[codex:223308]     if pc_val==0x0657:
[codex:223308]         print('Stack at 0x0657',stack)
[codex:223308]     if op=='MSTORE':
[codex:223308]         # for debug, peek current stack
[codex:223308]         if len(stack)>=2:
[codex:223308]             offset=stack[-1]
[codex:223308]             val=stack[-2]
[codex:223308]             print(f\"MSTORE at pc {hex(pc_val)} offset {offset} value {val}\")
[codex:223308]     # exec
[codex:223308]     def pop():
[codex:223308]         return stack.pop()
[codex:223308]     def push(x):
[codex:223308]         stack.append(x)
[codex:223308] 
[codex:223308]     if op.startswith('PUSH'):
[codex:223308]         push(hex(arg))
[codex:223308]     elif op.startswith('DUP'):
[codex:223308]         n=int(op[3:])
[codex:223308]         push(stack[-n])
[codex:223308]     elif op.startswith('SWAP'):
[codex:223308]         n=int(op[4:])
[codex:223308]         stack[-1],stack[-1-n]=stack[-1-n],stack[-1]
[codex:223308]     elif op=='POP':
[codex:223308]         pop()
[codex:223308]     elif op=='SLOAD':
[codex:223308]         key=pop(); push(f\"SLOAD({key})\")
[codex:223308]     elif op=='SSTORE':
[codex:223308]         offset=pop(); val=pop()
[codex:223308]     elif op=='CALLER':
[codex:223308]         push('CALLER')
[codex:223308]     elif op=='CALLVALUE':
[codex:223308]         push('CALLVALUE')
[codex:223308]     elif op=='MLOAD':
[codex:223308]         off=pop(); push(f\"MLOAD({off})\")
[codex:223308]     elif op=='MSTORE':
[codex:223308]         offset=pop(); val=pop(); mem[str(offset)]=val
[codex:223308]     elif op in ('ADD','SUB','MUL','DIV','AND','OR','XOR','EXP'):
[codex:223308]         b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]     elif op in ('EQ','GT','LT'):
[codex:223308]         b=pop(); a=pop(); push(f\"({a} {op} {b})\")
[codex:223308]     elif op=='ISZERO':
[codex:223308]         a=pop(); push(f\"ISZERO({a})\")
[codex:223308]     elif op=='SHA3':
[codex:223308]         b_=pop(); a_=pop(); push(f\"SHA3({a_},{b_})\")
[codex:223308]     elif op=='JUMPDEST':
[codex:223308]         pass
[codex:223308]     elif op=='JUMPI':
[codex:223308]         dest=pop(); cond=pop();
[codex:223308]         if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]             pc=int(dest,16); continue
[codex:223308]     elif op=='JUMP':
[codex:223308]         dest=pop();
[codex:223308]         if isinstance(dest,str) and dest.startswith('0x'):
[codex:223308]             pc=int(dest,16); continue
[codex:223308]     elif op=='CALL':
[codex:223308]         out_size=pop(); out_off=pop(); in_size=pop(); in_off=pop(); value=pop(); to=pop(); gas=pop();
[codex:223308]         push(f\"CALL(to={to},value={value},in_off={in_off},in_size={in_size})\")
[codex:223308]     elif op=='EXTCODESIZE':
[codex:223308]         addr=pop(); push(f\"EXTCODESIZE({addr})\")
[codex:223308]     elif op=='GAS':
[codex:223308]         push('GAS')
[codex:223308]     elif op=='REVERT':
[codex:223308]         break
[codex:223308]     pc += size
[codex:223308] 
[codex:223308] print('Memory writes:',mem)
[codex:223308] PY" in /tmp/codex-multi-03f3_i7d succeeded in 21ms:
[codex:223308] MSTORE at pc 0x529 offset (MLOAD(0x40) ADD 0x20) value 0x0
[codex:223308] MSTORE at pc 0x554 offset MLOAD(0x40) value ((0x3af32abf AND 0xffffffff) MUL 0x100000000000000000000000000000000000000000000000000000000)
[codex:223308] MSTORE at pc 0x587 offset (MLOAD(0x40) ADD 0x4) value ((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)
[codex:223308] MSTORE at pc 0x5ff offset 0x0 value ((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)
[codex:223308] MSTORE at pc 0x605 offset (0x0 ADD 0x20) value 0x1
[codex:223308] Stack at 0x0657 ['arg0', 'SLOAD(SHA3(((0x0 ADD 0x20) ADD 0x20),0x0))', 'arg0', '((((0x0 EXP 0x100) DIV SLOAD(0x2)) AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)']
[codex:223308] MSTORE at pc 0x688 offset MLOAD(0x40) value ((0x23024408 AND 0xffffffff) MUL 0x100000000000000000000000000000000000000000000000000000000)
[codex:223308] MSTORE at pc 0x6bb offset (MLOAD(0x40) ADD 0x4) value ((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)
[codex:223308] Memory writes: {'(MLOAD(0x40) ADD 0x20)': '0x0', 'MLOAD(0x40)': '((0x23024408 AND 0xffffffff) MUL 0x100000000000000000000000000000000000000000000000000000000)', '(MLOAD(0x40) ADD 0x4)': '((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '0x0': '((arg0 AND 0xffffffffffffffffffffffffffffffffffffffff) AND 0xffffffffffffffffffffffffffffffffffffffff)', '(0x0 ADD 0x20)': '0x1'}
[codex:223308] 
[codex:223308] 
[codex:223308] thinking
[codex:223308] **Analyzing call parameters and potential exploits**
[codex:223308] 
[codex:223308] I’m mapping stack values to CALL arguments to confirm the contract sends ETH equal to stored balances when calling the token contract. This suggests a token sale mechanism rather than a direct exploit, but I’m carefully considering integer overflow risks, access controls, reentrancy, and contract ownership changes to detect any exploitable vulnerabilities. So far, I find no concrete exploit paths purely from the bytecode.
[codex:223308] thinking
[codex:223308] **Confirming absence of exploit paths**
[codex:223308] 
[codex:223308] I'm considering edge cases like the token contract being the same as this contract and owner checks involving msg.sender, but none yield exploit paths. Owner restrictions, fallback behavior, and call parameters seem solid. I'll output the required JSON declaring no findings with a clear summary.
[codex:223308] codex
[codex:223308] {"no_findings":true,"summary":"No concrete, exploitable path to extract ETH/tokens/NFTs identified from the provided bytecode bundle alone.","findings":[]}
[codex:223308] tokens used
[codex:223308] 87,160
[codex:223308] {"no_findings":true,"summary":"No concrete, exploitable path to extract ETH/tokens/NFTs identified from the provided bytecode bundle alone.","findings":[]}

{
    "codex": {
        "ran_at": "2026-01-03T23:41:51.717091+00:00",
        "returncode": 0
    },
    "summary": "No concrete, exploitable path to extract ETH/tokens/NFTs identified from the provided bytecode bundle alone.",
    "raw_final": {
        "summary": "No concrete, exploitable path to extract ETH/tokens/NFTs identified from the provided bytecode bundle alone.",
        "findings": [],
        "no_findings": true
    },
    "no_findings": true,
    "schema_version": 1
}

00000000: PUSH1 0x60
00000002: PUSH1 0x40
00000004: MSTORE
00000005: PUSH1 0x04
00000007: CALLDATASIZE
00000008: LT
00000009: PUSH2 0x0083
0000000c: JUMPI
0000000d: PUSH1 0x00
0000000f: CALLDATALOAD
00000010: PUSH29 0x0100000000000000000000000000000000000000000000000000000000
0000002e: SWAP1
0000002f: DIV
00000030: PUSH4 0xffffffff
00000035: AND
00000036: DUP1
00000037: PUSH4 0x116191b6
0000003c: EQ
0000003d: PUSH2 0x0088
00000040: JUMPI
00000041: DUP1
00000042: PUSH4 0x23024408
00000047: EQ
00000048: PUSH2 0x00dd
0000004b: JUMPI
0000004c: DUP1
0000004d: PUSH4 0x3ccfd60b
00000052: EQ
00000053: PUSH2 0x010b
00000056: JUMPI
00000057: DUP1
00000058: PUSH4 0x42e94c90
0000005d: EQ
0000005e: PUSH2 0x0120
00000061: JUMPI
00000062: DUP1
00000063: PUSH4 0x5fb130af
00000068: EQ
00000069: PUSH2 0x016d
0000006c: JUMPI
0000006d: DUP1
0000006e: PUSH4 0x8da5cb5b
00000073: EQ
00000074: PUSH2 0x01a6
00000077: JUMPI
00000078: DUP1
00000079: PUSH4 0xf2fde38b
0000007e: EQ
0000007f: PUSH2 0x01fb
00000082: JUMPI
00000083: JUMPDEST
00000084: PUSH1 0x00
00000086: DUP1
00000087: REVERT
00000088: JUMPDEST
00000089: CALLVALUE
0000008a: ISZERO
0000008b: PUSH2 0x0093
0000008e: JUMPI
0000008f: PUSH1 0x00
00000091: DUP1
00000092: REVERT
00000093: JUMPDEST
00000094: PUSH2 0x009b
00000097: PUSH2 0x0234
0000009a: JUMP
0000009b: JUMPDEST
0000009c: PUSH1 0x40
0000009e: MLOAD
0000009f: DUP1
000000a0: DUP3
000000a1: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000000b6: AND
000000b7: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000000cc: AND
000000cd: DUP2
000000ce: MSTORE
000000cf: PUSH1 0x20
000000d1: ADD
000000d2: SWAP2
000000d3: POP
000000d4: POP
000000d5: PUSH1 0x40
000000d7: MLOAD
000000d8: DUP1
000000d9: SWAP2
000000da: SUB
000000db: SWAP1
000000dc: RETURN
000000dd: JUMPDEST
000000de: PUSH2 0x0109
000000e1: PUSH1 0x04
000000e3: DUP1
000000e4: DUP1
000000e5: CALLDATALOAD
000000e6: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000000fb: AND
000000fc: SWAP1
000000fd: PUSH1 0x20
000000ff: ADD
00000100: SWAP1
00000101: SWAP2
00000102: SWAP1
00000103: POP
00000104: POP
00000105: PUSH2 0x025a
00000108: JUMP
00000109: JUMPDEST
0000010a: STOP
0000010b: JUMPDEST
0000010c: CALLVALUE
0000010d: ISZERO
0000010e: PUSH2 0x0116
00000111: JUMPI
00000112: PUSH1 0x00
00000114: DUP1
00000115: REVERT
00000116: JUMPDEST
00000117: PUSH2 0x011e
0000011a: PUSH2 0x0378
0000011d: JUMP
0000011e: JUMPDEST
0000011f: STOP
00000120: JUMPDEST
00000121: CALLVALUE
00000122: ISZERO
00000123: PUSH2 0x012b
00000126: JUMPI
00000127: PUSH1 0x00
00000129: DUP1
0000012a: REVERT
0000012b: JUMPDEST
0000012c: PUSH2 0x0157
0000012f: PUSH1 0x04
00000131: DUP1
00000132: DUP1
00000133: CALLDATALOAD
00000134: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000149: AND
0000014a: SWAP1
0000014b: PUSH1 0x20
0000014d: ADD
0000014e: SWAP1
0000014f: SWAP2
00000150: SWAP1
00000151: POP
00000152: POP
00000153: PUSH2 0x04c6
00000156: JUMP
00000157: JUMPDEST
00000158: PUSH1 0x40
0000015a: MLOAD
0000015b: DUP1
0000015c: DUP3
0000015d: DUP2
0000015e: MSTORE
0000015f: PUSH1 0x20
00000161: ADD
00000162: SWAP2
00000163: POP
00000164: POP
00000165: PUSH1 0x40
00000167: MLOAD
00000168: DUP1
00000169: SWAP2
0000016a: SUB
0000016b: SWAP1
0000016c: RETURN
0000016d: JUMPDEST
0000016e: CALLVALUE
0000016f: ISZERO
00000170: PUSH2 0x0178
00000173: JUMPI
00000174: PUSH1 0x00
00000176: DUP1
00000177: REVERT
00000178: JUMPDEST
00000179: PUSH2 0x01a4
0000017c: PUSH1 0x04
0000017e: DUP1
0000017f: DUP1
00000180: CALLDATALOAD
00000181: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000196: AND
00000197: SWAP1
00000198: PUSH1 0x20
0000019a: ADD
0000019b: SWAP1
0000019c: SWAP2
0000019d: SWAP1
0000019e: POP
0000019f: POP
000001a0: PUSH2 0x04de
000001a3: JUMP
000001a4: JUMPDEST
000001a5: STOP
000001a6: JUMPDEST
000001a7: CALLVALUE
000001a8: ISZERO
000001a9: PUSH2 0x01b1
000001ac: JUMPI
000001ad: PUSH1 0x00
000001af: DUP1
000001b0: REVERT
000001b1: JUMPDEST
000001b2: PUSH2 0x01b9
000001b5: PUSH2 0x07ab
000001b8: JUMP
000001b9: JUMPDEST
000001ba: PUSH1 0x40
000001bc: MLOAD
000001bd: DUP1
000001be: DUP3
000001bf: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000001d4: AND
000001d5: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000001ea: AND
000001eb: DUP2
000001ec: MSTORE
000001ed: PUSH1 0x20
000001ef: ADD
000001f0: SWAP2
000001f1: POP
000001f2: POP
000001f3: PUSH1 0x40
000001f5: MLOAD
000001f6: DUP1
000001f7: SWAP2
000001f8: SUB
000001f9: SWAP1
000001fa: RETURN
000001fb: JUMPDEST
000001fc: CALLVALUE
000001fd: ISZERO
000001fe: PUSH2 0x0206
00000201: JUMPI
00000202: PUSH1 0x00
00000204: DUP1
00000205: REVERT
00000206: JUMPDEST
00000207: PUSH2 0x0232
0000020a: PUSH1 0x04
0000020c: DUP1
0000020d: DUP1
0000020e: CALLDATALOAD
0000020f: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000224: AND
00000225: SWAP1
00000226: PUSH1 0x20
00000228: ADD
00000229: SWAP1
0000022a: SWAP2
0000022b: SWAP1
0000022c: POP
0000022d: POP
0000022e: PUSH2 0x07d0
00000231: JUMP
00000232: JUMPDEST
00000233: STOP
00000234: JUMPDEST
00000235: PUSH1 0x02
00000237: PUSH1 0x00
00000239: SWAP1
0000023a: SLOAD
0000023b: SWAP1
0000023c: PUSH2 0x0100
0000023f: EXP
00000240: SWAP1
00000241: DIV
00000242: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000257: AND
00000258: DUP2
00000259: JUMP
0000025a: JUMPDEST
0000025b: PUSH1 0x00
0000025d: DUP1
0000025e: SWAP1
0000025f: SLOAD
00000260: SWAP1
00000261: PUSH2 0x0100
00000264: EXP
00000265: SWAP1
00000266: DIV
00000267: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000027c: AND
0000027d: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000292: AND
00000293: CALLER
00000294: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000002a9: AND
000002aa: EQ
000002ab: ISZERO
000002ac: ISZERO
000002ad: PUSH2 0x02b5
000002b0: JUMPI
000002b1: PUSH1 0x00
000002b3: DUP1
000002b4: REVERT
000002b5: JUMPDEST
000002b6: CALLVALUE
000002b7: PUSH1 0x01
000002b9: PUSH1 0x00
000002bb: DUP4
000002bc: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000002d1: AND
000002d2: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000002e7: AND
000002e8: DUP2
000002e9: MSTORE
000002ea: PUSH1 0x20
000002ec: ADD
000002ed: SWAP1
000002ee: DUP2
000002ef: MSTORE
000002f0: PUSH1 0x20
000002f2: ADD
000002f3: PUSH1 0x00
000002f5: KECCAK256
000002f6: PUSH1 0x00
000002f8: DUP3
000002f9: DUP3
000002fa: SLOAD
000002fb: ADD
000002fc: SWAP3
000002fd: POP
000002fe: POP
000002ff: DUP2
00000300: SWAP1
00000301: SSTORE
00000302: POP
00000303: PUSH32 0x1a9b370a248f3f7ecf990081701a2676aee708a7232617d1483a478e5d8f5d87
00000324: DUP2
00000325: CALLVALUE
00000326: TIMESTAMP
00000327: PUSH1 0x40
00000329: MLOAD
0000032a: DUP1
0000032b: DUP5
0000032c: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000341: AND
00000342: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000357: AND
00000358: DUP2
00000359: MSTORE
0000035a: PUSH1 0x20
0000035c: ADD
0000035d: DUP4
0000035e: DUP2
0000035f: MSTORE
00000360: PUSH1 0x20
00000362: ADD
00000363: DUP3
00000364: DUP2
00000365: MSTORE
00000366: PUSH1 0x20
00000368: ADD
00000369: SWAP4
0000036a: POP
0000036b: POP
0000036c: POP
0000036d: POP
0000036e: PUSH1 0x40
00000370: MLOAD
00000371: DUP1
00000372: SWAP2
00000373: SUB
00000374: SWAP1
00000375: LOG1
00000376: POP
00000377: JUMP
00000378: JUMPDEST
00000379: PUSH1 0x00
0000037b: PUSH1 0x01
0000037d: PUSH1 0x00
0000037f: CALLER
00000380: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000395: AND
00000396: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000003ab: AND
000003ac: DUP2
000003ad: MSTORE
000003ae: PUSH1 0x20
000003b0: ADD
000003b1: SWAP1
000003b2: DUP2
000003b3: MSTORE
000003b4: PUSH1 0x20
000003b6: ADD
000003b7: PUSH1 0x00
000003b9: KECCAK256
000003ba: SLOAD
000003bb: SWAP1
000003bc: POP
000003bd: PUSH1 0x00
000003bf: DUP2
000003c0: GT
000003c1: ISZERO
000003c2: ISZERO
000003c3: PUSH2 0x03cb
000003c6: JUMPI
000003c7: PUSH1 0x00
000003c9: DUP1
000003ca: REVERT
000003cb: JUMPDEST
000003cc: PUSH1 0x00
000003ce: PUSH1 0x01
000003d0: PUSH1 0x00
000003d2: CALLER
000003d3: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000003e8: AND
000003e9: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000003fe: AND
000003ff: DUP2
00000400: MSTORE
00000401: PUSH1 0x20
00000403: ADD
00000404: SWAP1
00000405: DUP2
00000406: MSTORE
00000407: PUSH1 0x20
00000409: ADD
0000040a: PUSH1 0x00
0000040c: KECCAK256
0000040d: DUP2
0000040e: SWAP1
0000040f: SSTORE
00000410: POP
00000411: CALLER
00000412: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000427: AND
00000428: PUSH2 0x08fc
0000042b: DUP3
0000042c: SWAP1
0000042d: DUP2
0000042e: ISZERO
0000042f: MUL
00000430: SWAP1
00000431: PUSH1 0x40
00000433: MLOAD
00000434: PUSH1 0x00
00000436: PUSH1 0x40
00000438: MLOAD
00000439: DUP1
0000043a: DUP4
0000043b: SUB
0000043c: DUP2
0000043d: DUP6
0000043e: DUP9
0000043f: DUP9
00000440: CALL
00000441: SWAP4
00000442: POP
00000443: POP
00000444: POP
00000445: POP
00000446: ISZERO
00000447: ISZERO
00000448: PUSH2 0x0450
0000044b: JUMPI
0000044c: PUSH1 0x00
0000044e: DUP1
0000044f: REVERT
00000450: JUMPDEST
00000451: PUSH32 0x4083144a0c522ae47ef0b1c531ef613d80c47f4eb802902db1cfab4ce5d25e76
00000472: CALLER
00000473: DUP3
00000474: TIMESTAMP
00000475: PUSH1 0x40
00000477: MLOAD
00000478: DUP1
00000479: DUP5
0000047a: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000048f: AND
00000490: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000004a5: AND
000004a6: DUP2
000004a7: MSTORE
000004a8: PUSH1 0x20
000004aa: ADD
000004ab: DUP4
000004ac: DUP2
000004ad: MSTORE
000004ae: PUSH1 0x20
000004b0: ADD
000004b1: DUP3
000004b2: DUP2
000004b3: MSTORE
000004b4: PUSH1 0x20
000004b6: ADD
000004b7: SWAP4
000004b8: POP
000004b9: POP
000004ba: POP
000004bb: POP
000004bc: PUSH1 0x40
000004be: MLOAD
000004bf: DUP1
000004c0: SWAP2
000004c1: SUB
000004c2: SWAP1
000004c3: LOG1
000004c4: POP
000004c5: JUMP
000004c6: JUMPDEST
000004c7: PUSH1 0x01
000004c9: PUSH1 0x20
000004cb: MSTORE
000004cc: DUP1
000004cd: PUSH1 0x00
000004cf: MSTORE
000004d0: PUSH1 0x40
000004d2: PUSH1 0x00
000004d4: KECCAK256
000004d5: PUSH1 0x00
000004d7: SWAP2
000004d8: POP
000004d9: SWAP1
000004da: POP
000004db: SLOAD
000004dc: DUP2
000004dd: JUMP
000004de: JUMPDEST
000004df: PUSH1 0x00
000004e1: DUP2
000004e2: PUSH1 0x02
000004e4: PUSH1 0x00
000004e6: SWAP1
000004e7: SLOAD
000004e8: SWAP1
000004e9: PUSH2 0x0100
000004ec: EXP
000004ed: SWAP1
000004ee: DIV
000004ef: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000504: AND
00000505: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000051a: AND
0000051b: PUSH4 0x3af32abf
00000520: DUP3
00000521: PUSH1 0x00
00000523: PUSH1 0x40
00000525: MLOAD
00000526: PUSH1 0x20
00000528: ADD
00000529: MSTORE
0000052a: PUSH1 0x40
0000052c: MLOAD
0000052d: DUP3
0000052e: PUSH4 0xffffffff
00000533: AND
00000534: PUSH29 0x0100000000000000000000000000000000000000000000000000000000
00000552: MUL
00000553: DUP2
00000554: MSTORE
00000555: PUSH1 0x04
00000557: ADD
00000558: DUP1
00000559: DUP3
0000055a: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000056f: AND
00000570: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000585: AND
00000586: DUP2
00000587: MSTORE
00000588: PUSH1 0x20
0000058a: ADD
0000058b: SWAP2
0000058c: POP
0000058d: POP
0000058e: PUSH1 0x20
00000590: PUSH1 0x40
00000592: MLOAD
00000593: DUP1
00000594: DUP4
00000595: SUB
00000596: DUP2
00000597: PUSH1 0x00
00000599: DUP8
0000059a: DUP1
0000059b: EXTCODESIZE
0000059c: ISZERO
0000059d: ISZERO
0000059e: PUSH2 0x05a6
000005a1: JUMPI
000005a2: PUSH1 0x00
000005a4: DUP1
000005a5: REVERT
000005a6: JUMPDEST
000005a7: PUSH2 0x02c6
000005aa: GAS
000005ab: SUB
000005ac: CALL
000005ad: ISZERO
000005ae: ISZERO
000005af: PUSH2 0x05b7
000005b2: JUMPI
000005b3: PUSH1 0x00
000005b5: DUP1
000005b6: REVERT
000005b7: JUMPDEST
000005b8: POP
000005b9: POP
000005ba: POP
000005bb: PUSH1 0x40
000005bd: MLOAD
000005be: DUP1
000005bf: MLOAD
000005c0: SWAP1
000005c1: POP
000005c2: ISZERO
000005c3: ISZERO
000005c4: PUSH2 0x05cc
000005c7: JUMPI
000005c8: PUSH1 0x00
000005ca: DUP1
000005cb: REVERT
000005cc: JUMPDEST
000005cd: PUSH1 0x01
000005cf: PUSH1 0x00
000005d1: DUP5
000005d2: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000005e7: AND
000005e8: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000005fd: AND
000005fe: DUP2
000005ff: MSTORE
00000600: PUSH1 0x20
00000602: ADD
00000603: SWAP1
00000604: DUP2
00000605: MSTORE
00000606: PUSH1 0x20
00000608: ADD
00000609: PUSH1 0x00
0000060b: KECCAK256
0000060c: SLOAD
0000060d: SWAP2
0000060e: POP
0000060f: PUSH1 0x00
00000611: DUP3
00000612: GT
00000613: ISZERO
00000614: ISZERO
00000615: PUSH2 0x061d
00000618: JUMPI
00000619: PUSH1 0x00
0000061b: DUP1
0000061c: REVERT
0000061d: JUMPDEST
0000061e: PUSH1 0x02
00000620: PUSH1 0x00
00000622: SWAP1
00000623: SLOAD
00000624: SWAP1
00000625: PUSH2 0x0100
00000628: EXP
00000629: SWAP1
0000062a: DIV
0000062b: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000640: AND
00000641: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000656: AND
00000657: PUSH4 0x23024408
0000065c: DUP4
0000065d: DUP6
0000065e: PUSH1 0x40
00000660: MLOAD
00000661: DUP4
00000662: PUSH4 0xffffffff
00000667: AND
00000668: PUSH29 0x0100000000000000000000000000000000000000000000000000000000
00000686: MUL
00000687: DUP2
00000688: MSTORE
00000689: PUSH1 0x04
0000068b: ADD
0000068c: DUP1
0000068d: DUP3
0000068e: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000006a3: AND
000006a4: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000006b9: AND
000006ba: DUP2
000006bb: MSTORE
000006bc: PUSH1 0x20
000006be: ADD
000006bf: SWAP2
000006c0: POP
000006c1: POP
000006c2: PUSH1 0x00
000006c4: PUSH1 0x40
000006c6: MLOAD
000006c7: DUP1
000006c8: DUP4
000006c9: SUB
000006ca: DUP2
000006cb: DUP6
000006cc: DUP9
000006cd: DUP1
000006ce: EXTCODESIZE
000006cf: ISZERO
000006d0: ISZERO
000006d1: PUSH2 0x06d9
000006d4: JUMPI
000006d5: PUSH1 0x00
000006d7: DUP1
000006d8: REVERT
000006d9: JUMPDEST
000006da: PUSH2 0x25ee
000006dd: GAS
000006de: SUB
000006df: CALL
000006e0: ISZERO
000006e1: ISZERO
000006e2: PUSH2 0x06ea
000006e5: JUMPI
000006e6: PUSH1 0x00
000006e8: DUP1
000006e9: REVERT
000006ea: JUMPDEST
000006eb: POP
000006ec: POP
000006ed: POP
000006ee: POP
000006ef: PUSH1 0x00
000006f1: PUSH1 0x01
000006f3: PUSH1 0x00
000006f5: DUP6
000006f6: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000070b: AND
0000070c: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000721: AND
00000722: DUP2
00000723: MSTORE
00000724: PUSH1 0x20
00000726: ADD
00000727: SWAP1
00000728: DUP2
00000729: MSTORE
0000072a: PUSH1 0x20
0000072c: ADD
0000072d: PUSH1 0x00
0000072f: KECCAK256
00000730: DUP2
00000731: SWAP1
00000732: SSTORE
00000733: POP
00000734: PUSH32 0xf2b8bfae9ea4da2137f22ddb93ce6ebeb5aee91bb362568ed003f1cb7b1979c4
00000755: DUP4
00000756: DUP4
00000757: TIMESTAMP
00000758: PUSH1 0x40
0000075a: MLOAD
0000075b: DUP1
0000075c: DUP5
0000075d: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000772: AND
00000773: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000788: AND
00000789: DUP2
0000078a: MSTORE
0000078b: PUSH1 0x20
0000078d: ADD
0000078e: DUP4
0000078f: DUP2
00000790: MSTORE
00000791: PUSH1 0x20
00000793: ADD
00000794: DUP3
00000795: DUP2
00000796: MSTORE
00000797: PUSH1 0x20
00000799: ADD
0000079a: SWAP4
0000079b: POP
0000079c: POP
0000079d: POP
0000079e: POP
0000079f: PUSH1 0x40
000007a1: MLOAD
000007a2: DUP1
000007a3: SWAP2
000007a4: SUB
000007a5: SWAP1
000007a6: LOG1
000007a7: POP
000007a8: POP
000007a9: POP
000007aa: JUMP
000007ab: JUMPDEST
000007ac: PUSH1 0x00
000007ae: DUP1
000007af: SWAP1
000007b0: SLOAD
000007b1: SWAP1
000007b2: PUSH2 0x0100
000007b5: EXP
000007b6: SWAP1
000007b7: DIV
000007b8: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000007cd: AND
000007ce: DUP2
000007cf: JUMP
000007d0: JUMPDEST
000007d1: PUSH1 0x00
000007d3: DUP1
000007d4: SWAP1
000007d5: SLOAD
000007d6: SWAP1
000007d7: PUSH2 0x0100
000007da: EXP
000007db: SWAP1
000007dc: DIV
000007dd: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000007f2: AND
000007f3: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000808: AND
00000809: CALLER
0000080a: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000081f: AND
00000820: EQ
00000821: ISZERO
00000822: ISZERO
00000823: PUSH2 0x082b
00000826: JUMPI
00000827: PUSH1 0x00
00000829: DUP1
0000082a: REVERT
0000082b: JUMPDEST
0000082c: PUSH1 0x00
0000082e: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000843: AND
00000844: DUP2
00000845: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000085a: AND
0000085b: EQ
0000085c: ISZERO
0000085d: ISZERO
0000085e: ISZERO
0000085f: PUSH2 0x0867
00000862: JUMPI
00000863: PUSH1 0x00
00000865: DUP1
00000866: REVERT
00000867: JUMPDEST
00000868: DUP1
00000869: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000087e: AND
0000087f: PUSH1 0x00
00000881: DUP1
00000882: SWAP1
00000883: SLOAD
00000884: SWAP1
00000885: PUSH2 0x0100
00000888: EXP
00000889: SWAP1
0000088a: DIV
0000088b: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000008a0: AND
000008a1: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000008b6: AND
000008b7: PUSH32 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0
000008d8: PUSH1 0x40
000008da: MLOAD
000008db: PUSH1 0x40
000008dd: MLOAD
000008de: DUP1
000008df: SWAP2
000008e0: SUB
000008e1: SWAP1
000008e2: LOG3
000008e3: DUP1
000008e4: PUSH1 0x00
000008e6: DUP1
000008e7: PUSH2 0x0100
000008ea: EXP
000008eb: DUP2
000008ec: SLOAD
000008ed: DUP2
000008ee: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000903: MUL
00000904: NOT
00000905: AND
00000906: SWAP1
00000907: DUP4
00000908: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000091d: AND
0000091e: MUL
0000091f: OR
00000920: SWAP1
00000921: SSTORE
00000922: POP
00000923: POP
00000924: JUMP
00000925: STOP
00000926: LOG1
00000927: PUSH6 0x627a7a723058
0000092e: KECCAK256
0000092f: UNKNOWN(0xCC)
00000930: PUSH30 0x022c882f5bb59507ff7e008642fe65944cb71d227303b54575b2cfa316b2
0000094f: STOP
00000950: UNKNOWN(0x29)