Analysis Run

[codex:162625] OpenAI Codex v0.77.0 (research preview)
[codex:162625] --------
[codex:162625] workdir: /tmp/codex-multi-d0el42bm
[codex:162625] model: gpt-5.2-codex
[codex:162625] provider: openai
[codex:162625] approval: never
[codex:162625] sandbox: read-only
[codex:162625] reasoning effort: xhigh
[codex:162625] reasoning summaries: auto
[codex:162625] session id: 019b874b-66dc-7ce3-8462-8667f3e6f22e
[codex:162625] --------
[codex:162625] user
[codex:162625] 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:162625] 
[codex:162625] Read `BYTECODE_BUNDLE.txt` completely before concluding.
[codex:162625] 
[codex:162625] ONLY REPORT if you find a CONCRETE, EXPLOITABLE path to profit. We do NOT care about:
[codex:162625] - Gas inefficiency, code quality, or best practices
[codex:162625] - Theoretical vulnerabilities without a clear extraction path
[codex:162625] - Generic footguns (unchecked return values, etc.) unless they enable theft
[codex:162625] - Issues requiring social engineering or off-chain coordination
[codex:162625] 
[codex:162625] PATTERNS WORTH INVESTIGATING in bytecode:
[codex:162625] - CALL/DELEGATECALL with controllable destination or calldata
[codex:162625] - Value transfers (CALL with non-zero value) without prior CALLER/ORIGIN checks
[codex:162625] - SSTORE to low slots (0-10) that might be owner/admin storage
[codex:162625] - ecrecover (signature validation) - look for missing nonce/replay protection
[codex:162625] - External calls before state updates (reentrancy)
[codex:162625] - SELFDESTRUCT with controllable beneficiary
[codex:162625] - Proxy patterns (DELEGATECALL to storage slot) with unprotected upgrade paths
[codex:162625] 
[codex:162625] For each finding, you MUST explain:
[codex:162625] 1. The specific bytecode pattern/offsets that indicate the vulnerability
[codex:162625] 2. The concrete sequence of transactions to extract value
[codex:162625] 3. Why you believe this is exploitable (not just suspicious)
[codex:162625] 
[codex:162625] If you cannot identify a concrete profit path from bytecode alone: set no_findings=true.
[codex:162625] Do NOT hallucinate. Bytecode-only analysis is limited - be honest about uncertainty.
[codex:162625] 
[codex:162625] Output MUST be valid JSON matching the provided schema.
[codex:162625] - severity: info, low, medium, high, critical (use high/critical ONLY for clear extraction paths)
[codex:162625] - category: access_control, reentrancy, math, oracle, upgradeability, auth, other
[codex:162625] mcp startup: no servers
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Reviewing skill references and reading BYTECODE_BUNDLE.txt**
[codex:162625] exec
[codex:162625] /bin/bash -lc ls in /tmp/codex-multi-d0el42bm succeeded in 5ms:
[codex:162625] BYTECODE_BUNDLE.txt
[codex:162625] codex-output-schema.json
[codex:162625] exec
[codex:162625] /bin/bash -lc 'cat BYTECODE_BUNDLE.txt' in /tmp/codex-multi-d0el42bm succeeded in 5ms:
[codex:162625] Runtime bytecode bundle for best-effort auditing.
[codex:162625] Note: without verified source, conclusions are low-confidence unless a concrete pattern is visible.
[codex:162625] 
[codex:162625] FILE: runtime_bytecode.hex
[codex:162625] 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
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Decoding and analyzing contract bytecode**
[codex:162625] exec
[codex:162625] /bin/bash -lc "python - <<'PY'
[codex:162625] import sys, textwrap
[codex:162625] hexcode=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].split('\\n')[0].strip()
[codex:162625] # ensure even length
[codex:162625] if hexcode.startswith('6060'):
[codex:162625]     pass
[codex:162625] # disassemble
[codex:162625] opcodes = {i: name for i,name in enumerate([
[codex:162625]     'STOP','ADD','MUL','SUB','DIV','SDIV','MOD','SMOD','ADDMOD','MULMOD','EXP','SIGNEXTEND',
[codex:162625]     ''] )}
[codex:162625] # We'll use full map
[codex:162625] OPCODES = {
[codex:162625]     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:162625]     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:162625]     0x20:'SHA3',
[codex:162625]     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:162625]     0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:162625]     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:162625]     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',
[codex:162625]     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:162625]     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:162625]     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:162625]     0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:162625]     0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:162625] }
[codex:162625] 
[codex:162625] bytecode=bytes.fromhex(hexcode)
[codex:162625] 
[codex:162625] pc=0
[codex:162625] out=[]
[codex:162625] while pc<len(bytecode):
[codex:162625]     op=bytecode[pc]
[codex:162625]     name=OPCODES.get(op, 'UNKNOWN')
[codex:162625]     pc_start=pc
[codex:162625]     pc+=1
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=op-0x5f
[codex:162625]         data=bytecode[pc:pc+n]
[codex:162625]         pc+=n
[codex:162625]         out.append((pc_start,name,'0x'+data.hex()))
[codex:162625]     else:
[codex:162625]         out.append((pc_start,name,''))
[codex:162625] 
[codex:162625] # print around key areas: 
[codex:162625] for pc,name,data in out:
[codex:162625]     if pc in (0x1bf,0x29a,0x32b,0x33a,0x34a,0x35c,0x36b,0x406,0x48a):
[codex:162625]         print('==',hex(pc))
[codex:162625]     # print all, but maybe limit
[codex:162625] 
[codex:162625] # Print full disassembly with pc
[codex:162625] for pc,name,data in out:
[codex:162625]     print(f\"{pc:04x}: {name} {data}\")
[codex:162625] PY" in /tmp/codex-multi-d0el42bm succeeded in 28ms:
[codex:162625] == 0x1bf
[codex:162625] == 0x29a
[codex:162625] == 0x32b
[codex:162625] == 0x33a
[codex:162625] == 0x34a
[codex:162625] == 0x35c
[codex:162625] == 0x36b
[codex:162625] == 0x406
[codex:162625] == 0x48a
[codex:162625] 0000: PUSH1 0x60
[codex:162625] 0002: PUSH1 0x40
[codex:162625] 0004: MSTORE 
[codex:162625] 0005: CALLDATASIZE 
[codex:162625] 0006: ISZERO 
[codex:162625] 0007: PUSH2 0x0096
[codex:162625] 000a: JUMPI 
[codex:162625] 000b: PUSH4 0xffffffff
[codex:162625] 0010: PUSH29 0x0100000000000000000000000000000000000000000000000000000000
[codex:162625] 002e: PUSH1 0x00
[codex:162625] 0030: CALLDATALOAD 
[codex:162625] 
[codex:162625] 
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Analyzing storage and function behaviors**
[codex:162625] thinking
[codex:162625] **Tracing map update and call logic**
[codex:162625] 
[codex:162625] This disassembly decodes a function that clears a mapping entry for a given address parameter, then uses that value to perform a conditional low-gas ETH call to that address. The detailed stack and memory ops confirm the mapping value is set to zero before the call; the call gas is set to 2300 if value is zero, else zero, likely governing success or revert. This suggests a withdrawal or claim behavior linked to state variables and ownership constraints, which I’m analyzing further.
[codex:162625] thinking
[codex:162625] **Mapping contract states and function roles**
[codex:162625] 
[codex:162625] I’m analyzing how the contract manages its state variable to gate functions: state 0 allows owner deposits increasing per-address balances, state 1 enables public withdrawals clearing those balances, and state 2 likely means paused or closed. Each function carefully enforces these states, and owner-only functions update state with bitwise masks. The deposit uses safe addition to update mapping, while withdrawal zeroes balances before calling out to send ETH. I’m planning a symbolic stack simulation to clarify call arguments and verify access control nuances.
[codex:162625] exec
[codex:162625] /bin/bash -lc "python - <<'PY'
[codex:162625] from collections import defaultdict
[codex:162625] 
[codex:162625] # parse bytecode
[codex:162625] hexcode=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].split('\\n')[0].strip()
[codex:162625] bytecode=bytes.fromhex(hexcode)
[codex:162625] 
[codex:162625] OPCODES = {
[codex:162625]     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:162625]     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:162625]     0x20:'SHA3',
[codex:162625]     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:162625]     0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:162625]     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:162625]     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',
[codex:162625]     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:162625]     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:162625]     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:162625]     0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:162625]     0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:162625] }
[codex:162625] 
[codex:162625] # disassemble map pc->(op,data)
[codex:162625] code=bytecode
[codex:162625] pc=0
[codex:162625] ops=[]
[codex:162625] while pc<len(code):
[codex:162625]     op=code[pc]
[codex:162625]     name=OPCODES.get(op, 'UNKNOWN')
[codex:162625]     pc0=pc
[codex:162625]     pc+=1
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=op-0x5f
[codex:162625]         data=code[pc:pc+n]
[codex:162625]         pc+=n
[codex:162625]         ops.append((pc0,name,int.from_bytes(data,'big')))
[codex:162625]     else:
[codex:162625]         ops.append((pc0,name,None))
[codex:162625] 
[codex:162625] # build dict
[codex:162625] opmap={pc:(name,data) for pc,name,data in ops}
[codex:162625] 
[codex:162625] # simulate from start_pc to end_pc inclusive
[codex:162625] start_pc=0x048a
[codex:162625] end_pc=0x04e9
[codex:162625] stack=['addr']
[codex:162625] mem=defaultdict(lambda: 'mem?')
[codex:162625] 
[codex:162625] pc=start_pc
[codex:162625] 
[codex:162625] visited=set()
[codex:162625] while pc<=end_pc:
[codex:162625]     name,data=opmap[pc]
[codex:162625]     # print
[codex:162625]     # print(f\"{pc:04x} {name} {data} stack:{stack}\")
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         stack.insert(0, hex(data))
[codex:162625]     elif name.startswith('DUP'):
[codex:162625]         idx=int(name[3:])
[codex:162625]         stack.insert(0, stack[idx-1])
[codex:162625]     elif name.startswith('SWAP'):
[codex:162625]         idx=int(name[4:])
[codex:162625]         stack[0],stack[idx]=stack[idx],stack[0]
[codex:162625]     elif name=='POP':
[codex:162625]         stack.pop(0)
[codex:162625]     elif name=='SLOAD':
[codex:162625]         key=stack.pop(0)
[codex:162625]         stack.insert(0, f\"SLOAD({key})\")
[codex:162625]     elif name=='SSTORE':
[codex:162625]         key=stack.pop(0)
[codex:162625]         val=stack.pop(0)
[codex:162625]         # simulate store
[codex:162625]         stack.insert(0, f\"SSTORE({key},{val})\")
[codex:162625]     elif name=='MSTORE':
[codex:162625]         offset=stack.pop(0); val=stack.pop(0)
[codex:162625]         mem[offset]=val
[codex:162625]     elif name=='MLOAD':
[codex:162625]         offset=stack.pop(0)
[codex:162625]         stack.insert(0, f\"MLOAD({offset})\")
[codex:162625]     elif name=='SHA3':
[codex:162625]         offset=stack.pop(0); size=stack.pop(0)
[codex:162625]         stack.insert(0, f\"KECCAK({offset},{size})\")
[codex:162625]     elif name=='AND':
[codex:162625]         a=stack.pop(0); b=stack.pop(0)
[codex:162625]         stack.insert(0, f\"({a}&{b})\")
[codex:162625]     elif name=='OR':
[codex:162625]         a=stack.pop(0); b=stack.pop(0)
[codex:162625]         stack.insert(0, f\"({a}|{b})\")
[codex:162625]     elif name=='SUB':
[codex:162625]         a=stack.pop(0); b=stack.pop(0)
[codex:162625]         stack.insert(0, f\"({a}-{b})\")
[codex:162625]     elif name=='DIV':
[codex:162625]         a=stack.pop(0); b=stack.pop(0)
[codex:162625]         stack.insert(0, f\"({a}/{b})\")
[codex:162625]     elif name=='EXP':
[codex:162625]         a=stack.pop(0); b=stack.pop(0)
[codex:162625]         stack.insert(0, f\"({a}**{b})\")
[codex:162625]     elif name=='EQ':
[codex:162625]         a=stack.pop(0); b=stack.pop(0)
[codex:162625]         stack.insert(0, f\"({a}=={b})\")
[codex:162625]     elif name=='GT':
[codex:162625]         a=stack.pop(0); b=stack.pop(0)
[codex:162625]         stack.insert(0, f\"({a}>{b})\")
[codex:162625]     elif name=='ISZERO':
[codex:162625]         a=stack.pop(0)
[codex:162625]         stack.insert(0, f\"ISZERO({a})\")
[codex:162625]     elif name=='CALL':
[codex:162625]         # For CALL, just print stack
[codex:162625]         print('Stack before CALL', stack)
[codex:162625]         break
[codex:162625]     elif name=='JUMPDEST' or name=='JUMP' or name=='JUMPI':
[codex:162625]         # ignore control for now
[codex:162625]         pass
[codex:162625]     elif name in ('CALLER','CALLVALUE','ADDRESS','BALANCE'):
[codex:162625]         stack.insert(0, name)
[codex:162625]     else:
[codex:162625]         # default: treat as unknown op that pops? For now ignore
[codex:162625]         # Could be LOG, etc
[codex:162625]         pass
[codex:162625]     # advance pc
[codex:162625]     # find next pc
[codex:162625]     # compute instruction length
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=int(name[4:])
[codex:162625]         pc = pc + 1 + n
[codex:162625]     else:
[codex:162625]         pc = pc + 1
[codex:162625] 
[codex:162625] # print final stack snippet
[codex:162625] print('Final stack snippet:', stack[:10])
[codex:162625] PY" in /tmp/codex-multi-d0el42bm succeeded in 22ms:
[codex:162625] Stack before CALL ['0x8fc', 'SSTORE(KECCAK(0x0,0x40),0x0)', 'SLOAD(KECCAK(0x0,0x40))', 'MLOAD(0x40)', '(MLOAD(ISZERO(0x40))-MLOAD(0x40))', 'MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(0x40))', 'SLOAD(KECCAK(0x0,0x40))', '0x8fc', 'SSTORE(KECCAK(0x0,0x40),0x0)', 'SLOAD(KECCAK(0x0,0x40))', '0x40', '(0x0&((0x2**0xa0)-0x1))', '0x0', '0x4b0', '(0x4a6==ISZERO(((0xff&(SLOAD(0x2)/(0x2**0xa0)))>0x2)))', '(0xff&(SLOAD(0x2)/(0x2**0xa0)))', '0x1', '0x0', 'addr']
[codex:162625] Final stack snippet: ['0x8fc', 'SSTORE(KECCAK(0x0,0x40),0x0)', 'SLOAD(KECCAK(0x0,0x40))', 'MLOAD(0x40)', '(MLOAD(ISZERO(0x40))-MLOAD(0x40))', 'MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(0x40))', 'SLOAD(KECCAK(0x0,0x40))', '0x8fc']
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Improving symbolic EVM stack simulation**
[codex:162625] 
[codex:162625] I'm tackling the messy symbolic simulation from before by focusing on a narrower bytecode range (0x04b0 to 0x04e9) to track stack values more precisely. I want to manually and symbolically evaluate the CALL arguments and confirm which address is used for sending funds, since this affects whether an attacker could exploit the withdrawal function. Modeling this part carefully should clarify the contract's actual behavior around balance withdrawals and ownership checks.
[codex:162625] exec
[codex:162625] /bin/bash -lc "python - <<'PY'
[codex:162625] from collections import defaultdict
[codex:162625] 
[codex:162625] hexcode=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].split('\\n')[0].strip()
[codex:162625] code=bytes.fromhex(hexcode)
[codex:162625] 
[codex:162625] OPCODES = {
[codex:162625]     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:162625]     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:162625]     0x20:'SHA3',
[codex:162625]     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:162625]     0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:162625]     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:162625]     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',
[codex:162625]     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:162625]     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:162625]     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:162625]     0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:162625]     0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:162625] }
[codex:162625] 
[codex:162625] # build instruction list
[codex:162625] ops=[]
[codex:162625] pc=0
[codex:162625] while pc<len(code):
[codex:162625]     op=code[pc]
[codex:162625]     name=OPCODES.get(op,'UNKNOWN')
[codex:162625]     pc0=pc
[codex:162625]     pc+=1
[codex:162625]     data=None
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=op-0x5f
[codex:162625]         data=int.from_bytes(code[pc:pc+n],'big')
[codex:162625]         pc+=n
[codex:162625]     ops.append((pc0,name,data))
[codex:162625] 
[codex:162625] opmap={pc:(name,data) for pc,name,data in ops}
[codex:162625] 
[codex:162625] start=0x04b0
[codex:162625] end=0x04e9
[codex:162625] stack=['addr']
[codex:162625] mem={}
[codex:162625] 
[codex:162625] def pop():
[codex:162625]     return stack.pop(0)
[codex:162625] 
[codex:162625] def push(x):
[codex:162625]     stack.insert(0,x)
[codex:162625] 
[codex:162625] pc=start
[codex:162625] 
[codex:162625] while pc<=end:
[codex:162625]     name,data=opmap[pc]
[codex:162625]     # print(f\"{pc:04x} {name} {data} stack={stack}\")
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         push(hex(data))
[codex:162625]     elif name.startswith('DUP'):
[codex:162625]         idx=int(name[3:])
[codex:162625]         push(stack[idx-1])
[codex:162625]     elif name.startswith('SWAP'):
[codex:162625]         idx=int(name[4:])
[codex:162625]         stack[0],stack[idx]=stack[idx],stack[0]
[codex:162625]     elif name=='POP':
[codex:162625]         pop()
[codex:162625]     elif name=='AND':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}&{b})\")
[codex:162625]     elif name=='OR':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}|{b})\")
[codex:162625]     elif name=='SUB':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}-{b})\")
[codex:162625]     elif name=='ADD':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}+{b})\")
[codex:162625]     elif name=='DIV':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}/{b})\")
[codex:162625]     elif name=='EXP':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}**{b})\")
[codex:162625]     elif name=='ISZERO':
[codex:162625]         a=pop(); push(f\"ISZERO({a})\")
[codex:162625]     elif name=='MSTORE':
[codex:162625]         off=pop(); val=pop(); mem[off]=val
[codex:162625]     elif name=='MLOAD':
[codex:162625]         off=pop(); push(f\"MLOAD({off})\")
[codex:162625]     elif name=='SHA3':
[codex:162625]         off=pop(); size=pop(); push(f\"KECCAK({off},{size})\")
[codex:162625]     elif name=='SLOAD':
[codex:162625]         key=pop(); push(f\"SLOAD({key})\")
[codex:162625]     elif name=='SSTORE':
[codex:162625]         key=pop(); val=pop(); push(f\"SSTORE({key},{val})\")
[codex:162625]     elif name=='CALL':
[codex:162625]         print('Stack before CALL (top first):')
[codex:162625]         for i,v in enumerate(stack[:12]):
[codex:162625]             print(i, v)
[codex:162625]         break
[codex:162625]     else:
[codex:162625]         # ignore other ops
[codex:162625]         pass
[codex:162625] 
[codex:162625]     # advance pc
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=int(name[4:])
[codex:162625]         pc += 1 + n
[codex:162625]     else:
[codex:162625]         pc += 1
[codex:162625] 
[codex:162625] print('Mem snapshot keys:', mem)
[codex:162625] PY" in /tmp/codex-multi-d0el42bm exited 1 in 31ms:
[codex:162625] Traceback (most recent call last):
[codex:162625]   File "<stdin>", line 58, in <module>
[codex:162625] IndexError: list index out of range
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Adjusting start point to avoid stack underflow**
[codex:162625] exec
[codex:162625] /bin/bash -lc "python - <<'PY'
[codex:162625] from collections import defaultdict
[codex:162625] 
[codex:162625] hexcode=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].split('\\n')[0].strip()
[codex:162625] code=bytes.fromhex(hexcode)
[codex:162625] 
[codex:162625] OPCODES = {
[codex:162625]     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:162625]     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:162625]     0x20:'SHA3',
[codex:162625]     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:162625]     0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:162625]     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:162625]     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',
[codex:162625]     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:162625]     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:162625]     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:162625]     0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:162625]     0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:162625] }
[codex:162625] 
[codex:162625] # disassemble map
[codex:162625] ops=[]
[codex:162625] pc=0
[codex:162625] while pc<len(code):
[codex:162625]     op=code[pc]; name=OPCODES.get(op,'UNKNOWN'); pc0=pc; pc+=1; data=None
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=op-0x5f
[codex:162625]         data=int.from_bytes(code[pc:pc+n],'big')
[codex:162625]         pc+=n
[codex:162625]     ops.append((pc0,name,data))
[codex:162625] 
[codex:162625] opmap={pc:(name,data) for pc,name,data in ops}
[codex:162625] 
[codex:162625] start=0x04b2
[codex:162625] end=0x04e9
[codex:162625] stack=['addr']
[codex:162625] mem={}
[codex:162625] 
[codex:162625] def pop():
[codex:162625]     if not stack:
[codex:162625]         raise IndexError('stack underflow')
[codex:162625]     return stack.pop(0)
[codex:162625] 
[codex:162625] 
[codex:162625] def push(x):
[codex:162625]     stack.insert(0,x)
[codex:162625] 
[codex:162625] pc=start
[codex:162625] 
[codex:162625] while pc<=end:
[codex:162625]     name,data=opmap[pc]
[codex:162625]     # print(f\"{pc:04x} {name} {data} stack={stack}\")
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         push(hex(data))
[codex:162625]     elif name.startswith('DUP'):
[codex:162625]         idx=int(name[3:])
[codex:162625]         push(stack[idx-1])
[codex:162625]     elif name.startswith('SWAP'):
[codex:162625]         idx=int(name[4:])
[codex:162625]         stack[0],stack[idx]=stack[idx],stack[0]
[codex:162625]     elif name=='POP':
[codex:162625]         pop()
[codex:162625]     elif name=='AND':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}&{b})\")
[codex:162625]     elif name=='OR':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}|{b})\")
[codex:162625]     elif name=='SUB':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}-{b})\")
[codex:162625]     elif name=='ADD':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}+{b})\")
[codex:162625]     elif name=='DIV':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}/{b})\")
[codex:162625]     elif name=='EXP':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}**{b})\")
[codex:162625]     elif name=='ISZERO':
[codex:162625]         a=pop(); push(f\"ISZERO({a})\")
[codex:162625]     elif name=='MSTORE':
[codex:162625]         off=pop(); val=pop(); mem[off]=val
[codex:162625]     elif name=='MLOAD':
[codex:162625]         off=pop(); push(f\"MLOAD({off})\")
[codex:162625]     elif name=='SHA3':
[codex:162625]         off=pop(); size=pop(); push(f\"KECCAK({off},{size})\")
[codex:162625]     elif name=='SLOAD':
[codex:162625]         key=pop(); push(f\"SLOAD({key})\")
[codex:162625]     elif name=='SSTORE':
[codex:162625]         key=pop(); val=pop(); push(f\"SSTORE({key},{val})\")
[codex:162625]     elif name=='CALL':
[codex:162625]         print('Stack before CALL (top first):')
[codex:162625]         for i,v in enumerate(stack[:10]):
[codex:162625]             print(i, v)
[codex:162625]         break
[codex:162625]     else:
[codex:162625]         # ignore other ops
[codex:162625]         pass
[codex:162625] 
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=int(name[4:])
[codex:162625]         pc += 1 + n
[codex:162625]     else:
[codex:162625]         pc += 1
[codex:162625] 
[codex:162625] print('Mem snapshot:', mem)
[codex:162625] PY" in /tmp/codex-multi-d0el42bm succeeded in 23ms:
[codex:162625] Stack before CALL (top first):
[codex:162625] 0 0x8fc
[codex:162625] 1 SSTORE(KECCAK(0x0,0x40),0x0)
[codex:162625] 2 SLOAD(KECCAK(0x0,0x40))
[codex:162625] 3 MLOAD(0x40)
[codex:162625] 4 (MLOAD(ISZERO(0x40))-MLOAD(0x40))
[codex:162625] 5 MLOAD(0x40)
[codex:162625] 6 0x0
[codex:162625] 7 MLOAD(ISZERO(0x40))
[codex:162625] 8 SLOAD(KECCAK(0x0,0x40))
[codex:162625] 9 0x8fc
[codex:162625] Mem snapshot: {'0x0': '(addr&((0x2**0xa0)-0x1))', '0x20': '0x1'}
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Correcting stack simulation behavior**
[codex:162625] exec
[codex:162625] /bin/bash -lc "python - <<'PY'
[codex:162625] from collections import defaultdict
[codex:162625] 
[codex:162625] hexcode=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].split('\\n')[0].strip()
[codex:162625] code=bytes.fromhex(hexcode)
[codex:162625] 
[codex:162625] OPCODES = {
[codex:162625]     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:162625]     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:162625]     0x20:'SHA3',
[codex:162625]     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:162625]     0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:162625]     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:162625]     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',
[codex:162625]     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:162625]     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:162625]     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:162625]     0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:162625]     0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:162625] }
[codex:162625] 
[codex:162625] # disassemble map
[codex:162625] ops=[]
[codex:162625] pc=0
[codex:162625] while pc<len(code):
[codex:162625]     op=code[pc]; name=OPCODES.get(op,'UNKNOWN'); pc0=pc; pc+=1; data=None
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=op-0x5f
[codex:162625]         data=int.from_bytes(code[pc:pc+n],'big')
[codex:162625]         pc+=n
[codex:162625]     ops.append((pc0,name,data))
[codex:162625] 
[codex:162625] opmap={pc:(name,data) for pc,name,data in ops}
[codex:162625] 
[codex:162625] start=0x04b2
[codex:162625] end=0x04e9
[codex:162625] stack=['addr']
[codex:162625] mem={}
[codex:162625] 
[codex:162625] def pop():
[codex:162625]     if not stack:
[codex:162625]         raise IndexError('stack underflow')
[codex:162625]     return stack.pop(0)
[codex:162625] 
[codex:162625] 
[codex:162625] def push(x):
[codex:162625]     stack.insert(0,x)
[codex:162625] 
[codex:162625] pc=start
[codex:162625] 
[codex:162625] while pc<=end:
[codex:162625]     name,data=opmap[pc]
[codex:162625]     # print(f\"{pc:04x} {name} {data} stack={stack}\")
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         push(hex(data))
[codex:162625]     elif name.startswith('DUP'):
[codex:162625]         idx=int(name[3:])
[codex:162625]         push(stack[idx-1])
[codex:162625]     elif name.startswith('SWAP'):
[codex:162625]         idx=int(name[4:])
[codex:162625]         stack[0],stack[idx]=stack[idx],stack[0]
[codex:162625]     elif name=='POP':
[codex:162625]         pop()
[codex:162625]     elif name=='AND':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}&{b})\")
[codex:162625]     elif name=='OR':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}|{b})\")
[codex:162625]     elif name=='SUB':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}-{b})\")
[codex:162625]     elif name=='ADD':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}+{b})\")
[codex:162625]     elif name=='DIV':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}/{b})\")
[codex:162625]     elif name=='EXP':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}**{b})\")
[codex:162625]     elif name=='ISZERO':
[codex:162625]         a=pop(); push(f\"ISZERO({a})\")
[codex:162625]     elif name=='MSTORE':
[codex:162625]         off=pop(); val=pop(); mem[off]=val
[codex:162625]     elif name=='MLOAD':
[codex:162625]         off=pop(); push(f\"MLOAD({off})\")
[codex:162625]     elif name=='SHA3':
[codex:162625]         off=pop(); size=pop(); push(f\"KECCAK({off},{size})\")
[codex:162625]     elif name=='SLOAD':
[codex:162625]         key=pop(); push(f\"SLOAD({key})\")
[codex:162625]     elif name=='SSTORE':
[codex:162625]         key=pop(); val=pop();
[codex:162625]         # no push
[codex:162625]     elif name=='CALL':
[codex:162625]         print('Stack before CALL (top first):')
[codex:162625]         for i,v in enumerate(stack[:10]):
[codex:162625]             print(i, v)
[codex:162625]         break
[codex:162625]     else:
[codex:162625]         # ignore other ops
[codex:162625]         pass
[codex:162625] 
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=int(name[4:])
[codex:162625]         pc += 1 + n
[codex:162625]     else:
[codex:162625]         pc += 1
[codex:162625] 
[codex:162625] print('Mem snapshot:', mem)
[codex:162625] PY" in /tmp/codex-multi-d0el42bm succeeded in 25ms:
[codex:162625] Stack before CALL (top first):
[codex:162625] 0 0x8fc
[codex:162625] 1 0x40
[codex:162625] 2 (addr&((0x2**0xa0)-0x1))
[codex:162625] 3 MLOAD(0x40)
[codex:162625] 4 (MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))-MLOAD(0x40))
[codex:162625] 5 MLOAD(0x40)
[codex:162625] 6 0x0
[codex:162625] 7 MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))
[codex:162625] 8 (addr&((0x2**0xa0)-0x1))
[codex:162625] 9 0x8fc
[codex:162625] Mem snapshot: {'0x0': '(addr&((0x2**0xa0)-0x1))', '0x20': '0x1'}
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Analyzing CALL stack parameter order**
[codex:162625] exec
[codex:162625] /bin/bash -lc "python - <<'PY'
[codex:162625] hexcode=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].split('\\n')[0].strip()
[codex:162625] code=bytes.fromhex(hexcode)
[codex:162625] 
[codex:162625] OPCODES={
[codex:162625] 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:162625] 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:162625] 0x20:'SHA3',
[codex:162625] 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:162625] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:162625] 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:162625] 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',
[codex:162625] 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:162625] 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:162625] 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:162625] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:162625] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:162625] 
[codex:162625] # disassemble
[codex:162625] ops=[]
[codex:162625] pc=0
[codex:162625] while pc<len(code):
[codex:162625]     op=code[pc]; name=OPCODES.get(op,'UNKNOWN'); pc0=pc; pc+=1; data=None
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=op-0x5f
[codex:162625]         data=int.from_bytes(code[pc:pc+n],'big')
[codex:162625]         pc+=n
[codex:162625]     ops.append((pc0,name,data))
[codex:162625] 
[codex:162625] opmap={pc:(name,data) for pc,name,data in ops}
[codex:162625] 
[codex:162625] start=0x04b2
[codex:162625] end=0x04e9
[codex:162625] stack=['addr']
[codex:162625] mem={}
[codex:162625] 
[codex:162625] def pop():
[codex:162625]     return stack.pop(0)
[codex:162625] 
[codex:162625] def push(x):
[codex:162625]     stack.insert(0,x)
[codex:162625] 
[codex:162625] pc=start
[codex:162625] 
[codex:162625] while pc<=end:
[codex:162625]     name,data=opmap[pc]
[codex:162625]     if pc>=0x04d0:
[codex:162625]         print(f\"{pc:04x} {name} {data} stack_top10={stack[:10]}\")
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         push(hex(data))
[codex:162625]     elif name.startswith('DUP'):
[codex:162625]         idx=int(name[3:])
[codex:162625]         push(stack[idx-1])
[codex:162625]     elif name.startswith('SWAP'):
[codex:162625]         idx=int(name[4:])
[codex:162625]         stack[0],stack[idx]=stack[idx],stack[0]
[codex:162625]     elif name=='POP':
[codex:162625]         pop()
[codex:162625]     elif name=='AND':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}&{b})\")
[codex:162625]     elif name=='OR':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}|{b})\")
[codex:162625]     elif name=='SUB':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}-{b})\")
[codex:162625]     elif name=='ADD':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}+{b})\")
[codex:162625]     elif name=='DIV':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}/{b})\")
[codex:162625]     elif name=='EXP':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}**{b})\")
[codex:162625]     elif name=='ISZERO':
[codex:162625]         a=pop(); push(f\"ISZERO({a})\")
[codex:162625]     elif name=='MSTORE':
[codex:162625]         off=pop(); val=pop(); mem[off]=val
[codex:162625]     elif name=='MLOAD':
[codex:162625]         off=pop(); push(f\"MLOAD({off})\")
[codex:162625]     elif name=='SHA3':
[codex:162625]         off=pop(); size=pop(); push(f\"KECCAK({off},{size})\")
[codex:162625]     elif name=='SLOAD':
[codex:162625]         key=pop(); push(f\"SLOAD({key})\")
[codex:162625]     elif name=='SSTORE':
[codex:162625]         key=pop(); val=pop()
[codex:162625]     elif name=='CALL':
[codex:162625]         print('CALL stack top7:', stack[:7])
[codex:162625]         break
[codex:162625] 
[codex:162625]     # advance pc
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=int(name[4:])
[codex:162625]         pc += 1 + n
[codex:162625]     else:
[codex:162625]         pc += 1
[codex:162625] PY" in /tmp/codex-multi-d0el42bm succeeded in 19ms:
[codex:162625] 04d0 SWAP1 None stack_top10=['0x40', 'SLOAD(KECCAK(0x0,0x40))', '(addr&((0x2**0xa0)-0x1))', 'addr']
[codex:162625] 04d1 SWAP2 None stack_top10=['SLOAD(KECCAK(0x0,0x40))', '0x40', '(addr&((0x2**0xa0)-0x1))', 'addr']
[codex:162625] 04d2 SWAP1 None stack_top10=['(addr&((0x2**0xa0)-0x1))', '0x40', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04d3 DUP3 None stack_top10=['0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04d4 ISZERO None stack_top10=['SLOAD(KECCAK(0x0,0x40))', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04d5 PUSH2 2300 stack_top10=['ISZERO(SLOAD(KECCAK(0x0,0x40)))', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04d8 MUL None stack_top10=['0x8fc', 'ISZERO(SLOAD(KECCAK(0x0,0x40)))', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04d9 SWAP1 None stack_top10=['0x8fc', 'ISZERO(SLOAD(KECCAK(0x0,0x40)))', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04da DUP4 None stack_top10=['ISZERO(SLOAD(KECCAK(0x0,0x40)))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04db SWAP1 None stack_top10=['(addr&((0x2**0xa0)-0x1))', 'ISZERO(SLOAD(KECCAK(0x0,0x40)))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04dc MLOAD None stack_top10=['ISZERO(SLOAD(KECCAK(0x0,0x40)))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04dd PUSH1 0 stack_top10=['MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04df PUSH1 64 stack_top10=['0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04e1 MLOAD None stack_top10=['0x40', '0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04e2 DUP1 None stack_top10=['MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04e3 DUP4 None stack_top10=['MLOAD(0x40)', 'MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04e4 SUB None stack_top10=['MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', 'MLOAD(0x40)', 'MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))']
[codex:162625] 04e5 DUP2 None stack_top10=['(MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))-MLOAD(0x40))', 'MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))', 'addr']
[codex:162625] 04e6 DUP6 None stack_top10=['MLOAD(0x40)', '(MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))-MLOAD(0x40))', 'MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))', 'SLOAD(KECCAK(0x0,0x40))']
[codex:162625] 04e7 DUP9 None stack_top10=['(addr&((0x2**0xa0)-0x1))', 'MLOAD(0x40)', '(MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))-MLOAD(0x40))', 'MLOAD(0x40)', '0x0', 'MLOAD(ISZERO(SLOAD(KECCAK(0x0,0x40))))', '(addr&((0x2**0xa0)-0x1))', '0x8fc', '0x40', '(addr&((0x2**0xa0)-0x1))']
[codex:162625] 
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Analyzing EVM CALL stack setup**
[codex:162625] thinking
[codex:162625] **Tracing stack and gas-value logic in CALL setup**
[codex:162625] 
[codex:162625] I'm tracing the detailed stack operations leading to the CALL, verifying the order of gas, to, value, and memory args. The tricky part is the gas calculation as `0x8fc * iszero(val)`, which sets gas to 2300 if val is zero and zero otherwise—an unusual pattern that may cause calls to fail when val is nonzero. I'm comparing this with a similar pattern in another function to see if the reversed gas-value relationship holds or if there’s a different interpretation.
[codex:162625] exec
[codex:162625] /bin/bash -lc "python - <<'PY'
[codex:162625] hexcode=open('BYTECODE_BUNDLE.txt').read().split('0x')[1].split('\\n')[0].strip()
[codex:162625] code=bytes.fromhex(hexcode)
[codex:162625] 
[codex:162625] OPCODES={
[codex:162625] 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:162625] 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:162625] 0x20:'SHA3',
[codex:162625] 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:162625] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:162625] 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:162625] 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',
[codex:162625] 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:162625] 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:162625] 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:162625] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:162625] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:162625] 
[codex:162625] # disassemble
[codex:162625] ops=[]
[codex:162625] pc=0
[codex:162625] while pc<len(code):
[codex:162625]     op=code[pc]; name=OPCODES.get(op,'UNKNOWN'); pc0=pc; pc+=1; data=None
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=op-0x5f
[codex:162625]         data=int.from_bytes(code[pc:pc+n],'big')
[codex:162625]         pc+=n
[codex:162625]     ops.append((pc0,name,data))
[codex:162625] 
[codex:162625] opmap={pc:(name,data) for pc,name,data in ops}
[codex:162625] 
[codex:162625] start=0x0260
[codex:162625] end=0x0288
[codex:162625] stack=[]
[codex:162625] mem={}
[codex:162625] 
[codex:162625] def pop():
[codex:162625]     return stack.pop(0)
[codex:162625] 
[codex:162625] def push(x):
[codex:162625]     stack.insert(0,x)
[codex:162625] 
[codex:162625] pc=start
[codex:162625] 
[codex:162625] while pc<=end:
[codex:162625]     name,data=opmap[pc]
[codex:162625]     # print(f\"{pc:04x} {name} {data} stack={stack}\")
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         push(hex(data))
[codex:162625]     elif name.startswith('DUP'):
[codex:162625]         idx=int(name[3:])
[codex:162625]         push(stack[idx-1])
[codex:162625]     elif name.startswith('SWAP'):
[codex:162625]         idx=int(name[4:])
[codex:162625]         stack[0],stack[idx]=stack[idx],stack[0]
[codex:162625]     elif name=='POP':
[codex:162625]         pop()
[codex:162625]     elif name=='AND':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}&{b})\")
[codex:162625]     elif name=='OR':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}|{b})\")
[codex:162625]     elif name=='SUB':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}-{b})\")
[codex:162625]     elif name=='ADD':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}+{b})\")
[codex:162625]     elif name=='DIV':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}/{b})\")
[codex:162625]     elif name=='EXP':
[codex:162625]         a=pop(); b=pop(); push(f\"({a}**{b})\")
[codex:162625]     elif name=='ISZERO':
[codex:162625]         a=pop(); push(f\"ISZERO({a})\")
[codex:162625]     elif name=='MSTORE':
[codex:162625]         off=pop(); val=pop(); mem[off]=val
[codex:162625]     elif name=='MLOAD':
[codex:162625]         off=pop(); push(f\"MLOAD({off})\")
[codex:162625]     elif name=='SHA3':
[codex:162625]         off=pop(); size=pop(); push(f\"KECCAK({off},{size})\")
[codex:162625]     elif name=='SLOAD':
[codex:162625]         key=pop(); push(f\"SLOAD({key})\")
[codex:162625]     elif name=='SSTORE':
[codex:162625]         key=pop(); val=pop()
[codex:162625]     elif name=='BALANCE':
[codex:162625]         a=pop(); push(f\"BALANCE({a})\")
[codex:162625]     elif name=='ADDRESS':
[codex:162625]         push('ADDRESS')
[codex:162625]     elif name=='CALL':
[codex:162625]         print('Stack before CALL:', stack[:7])
[codex:162625]         break
[codex:162625]     else:
[codex:162625]         pass
[codex:162625] 
[codex:162625]     if name.startswith('PUSH'):
[codex:162625]         n=int(name[4:])
[codex:162625]         pc += 1 + n
[codex:162625]     else:
[codex:162625]         pc += 1
[codex:162625] 
[codex:162625] PY" in /tmp/codex-multi-d0el42bm succeeded in 19ms:
[codex:162625] Stack before CALL: ['0x8fc', 'BALANCE((ADDRESS&((0x2**0xa0)-0x1)))', 'ISZERO(BALANCE((ADDRESS&((0x2**0xa0)-0x1))))', 'MLOAD(0x40)', '(MLOAD(0x40)-MLOAD(0x40))', 'MLOAD(0x40)', '0x0']
[codex:162625] 
[codex:162625] thinking
[codex:162625] **Analyzing RefundVault contract bytecode and exploitability**
[codex:162625] 
[codex:162625] I'm verifying the logic behind key functions in this contract, especially the refund pattern matching OpenZeppelin's RefundVault, and carefully inspecting gas usage and call parameters. The contract looks owner-guarded where needed, refund calls zero out mapping before transfers preventing reentrancy, and no delegatecalls or unsafe owner changes appear. Given all that, I conclude there’s no concrete exploit path to profit here, so I'll prepare a JSON output reporting no findings.
[codex:162625] codex
[codex:162625] {"no_findings":true,"summary":"No concrete exploitable path to extract value identified from the bytecode-only review.","findings":[]}
[codex:162625] tokens used
[codex:162625] 82,074
[codex:162625] {"no_findings":true,"summary":"No concrete exploitable path to extract value identified from the bytecode-only review.","findings":[]}

{
    "codex": {
        "ran_at": "2026-01-04T04:48:26.500729+00:00",
        "returncode": 0
    },
    "summary": "No concrete exploitable path to extract value identified from the bytecode-only review.",
    "raw_final": {
        "summary": "No concrete exploitable path to extract value identified from the bytecode-only review.",
        "findings": [],
        "no_findings": true
    },
    "no_findings": true,
    "schema_version": 1
}

00000000: PUSH1 0x60
00000002: PUSH1 0x40
00000004: MSTORE
00000005: CALLDATASIZE
00000006: ISZERO
00000007: PUSH2 0x0096
0000000a: JUMPI
0000000b: PUSH4 0xffffffff
00000010: PUSH29 0x0100000000000000000000000000000000000000000000000000000000
0000002e: PUSH1 0x00
00000030: CALLDATALOAD
00000031: DIV
00000032: AND
00000033: PUSH4 0x43d726d6
00000038: DUP2
00000039: EQ
0000003a: PUSH2 0x009b
0000003d: JUMPI
0000003e: DUP1
0000003f: PUSH4 0x8c52dc41
00000044: EQ
00000045: PUSH2 0x00b0
00000048: JUMPI
00000049: DUP1
0000004a: PUSH4 0x8da5cb5b
0000004f: EQ
00000050: PUSH2 0x00c3
00000053: JUMPI
00000054: DUP1
00000055: PUSH4 0xc19d93fb
0000005a: EQ
0000005b: PUSH2 0x00f2
0000005e: JUMPI
0000005f: DUP1
00000060: PUSH4 0xcb13cddb
00000065: EQ
00000066: PUSH2 0x0129
00000069: JUMPI
0000006a: DUP1
0000006b: PUSH4 0xe2fdcc17
00000070: EQ
00000071: PUSH2 0x015a
00000074: JUMPI
00000075: DUP1
00000076: PUSH4 0xf2fde38b
0000007b: EQ
0000007c: PUSH2 0x016d
0000007f: JUMPI
00000080: DUP1
00000081: PUSH4 0xf340fa01
00000086: EQ
00000087: PUSH2 0x018c
0000008a: JUMPI
0000008b: DUP1
0000008c: PUSH4 0xfa89401a
00000091: EQ
00000092: PUSH2 0x01a0
00000095: JUMPI
00000096: JUMPDEST
00000097: PUSH1 0x00
00000099: DUP1
0000009a: REVERT
0000009b: JUMPDEST
0000009c: CALLVALUE
0000009d: ISZERO
0000009e: PUSH2 0x00a6
000000a1: JUMPI
000000a2: PUSH1 0x00
000000a4: DUP1
000000a5: REVERT
000000a6: JUMPDEST
000000a7: PUSH2 0x00ae
000000aa: PUSH2 0x01bf
000000ad: JUMP
000000ae: JUMPDEST
000000af: STOP
000000b0: JUMPDEST
000000b1: CALLVALUE
000000b2: ISZERO
000000b3: PUSH2 0x00bb
000000b6: JUMPI
000000b7: PUSH1 0x00
000000b9: DUP1
000000ba: REVERT
000000bb: JUMPDEST
000000bc: PUSH2 0x00ae
000000bf: PUSH2 0x029a
000000c2: JUMP
000000c3: JUMPDEST
000000c4: CALLVALUE
000000c5: ISZERO
000000c6: PUSH2 0x00ce
000000c9: JUMPI
000000ca: PUSH1 0x00
000000cc: DUP1
000000cd: REVERT
000000ce: JUMPDEST
000000cf: PUSH2 0x00d6
000000d2: PUSH2 0x032b
000000d5: JUMP
000000d6: JUMPDEST
000000d7: PUSH1 0x40
000000d9: MLOAD
000000da: PUSH1 0x01
000000dc: PUSH1 0xa0
000000de: PUSH1 0x02
000000e0: EXP
000000e1: SUB
000000e2: SWAP1
000000e3: SWAP2
000000e4: AND
000000e5: DUP2
000000e6: MSTORE
000000e7: PUSH1 0x20
000000e9: ADD
000000ea: PUSH1 0x40
000000ec: MLOAD
000000ed: DUP1
000000ee: SWAP2
000000ef: SUB
000000f0: SWAP1
000000f1: RETURN
000000f2: JUMPDEST
000000f3: CALLVALUE
000000f4: ISZERO
000000f5: PUSH2 0x00fd
000000f8: JUMPI
000000f9: PUSH1 0x00
000000fb: DUP1
000000fc: REVERT
000000fd: JUMPDEST
000000fe: PUSH2 0x0105
00000101: PUSH2 0x033a
00000104: JUMP
00000105: JUMPDEST
00000106: PUSH1 0x40
00000108: MLOAD
00000109: DUP1
0000010a: DUP3
0000010b: PUSH1 0x02
0000010d: DUP2
0000010e: GT
0000010f: ISZERO
00000110: PUSH2 0x0115
00000113: JUMPI
00000114: INVALID
00000115: JUMPDEST
00000116: PUSH1 0xff
00000118: AND
00000119: DUP2
0000011a: MSTORE
0000011b: PUSH1 0x20
0000011d: ADD
0000011e: SWAP2
0000011f: POP
00000120: POP
00000121: PUSH1 0x40
00000123: MLOAD
00000124: DUP1
00000125: SWAP2
00000126: SUB
00000127: SWAP1
00000128: RETURN
00000129: JUMPDEST
0000012a: CALLVALUE
0000012b: ISZERO
0000012c: PUSH2 0x0134
0000012f: JUMPI
00000130: PUSH1 0x00
00000132: DUP1
00000133: REVERT
00000134: JUMPDEST
00000135: PUSH2 0x0148
00000138: PUSH1 0x01
0000013a: PUSH1 0xa0
0000013c: PUSH1 0x02
0000013e: EXP
0000013f: SUB
00000140: PUSH1 0x04
00000142: CALLDATALOAD
00000143: AND
00000144: PUSH2 0x034a
00000147: JUMP
00000148: JUMPDEST
00000149: PUSH1 0x40
0000014b: MLOAD
0000014c: SWAP1
0000014d: DUP2
0000014e: MSTORE
0000014f: PUSH1 0x20
00000151: ADD
00000152: PUSH1 0x40
00000154: MLOAD
00000155: DUP1
00000156: SWAP2
00000157: SUB
00000158: SWAP1
00000159: RETURN
0000015a: JUMPDEST
0000015b: CALLVALUE
0000015c: ISZERO
0000015d: PUSH2 0x0165
00000160: JUMPI
00000161: PUSH1 0x00
00000163: DUP1
00000164: REVERT
00000165: JUMPDEST
00000166: PUSH2 0x00d6
00000169: PUSH2 0x035c
0000016c: JUMP
0000016d: JUMPDEST
0000016e: CALLVALUE
0000016f: ISZERO
00000170: PUSH2 0x0178
00000173: JUMPI
00000174: PUSH1 0x00
00000176: DUP1
00000177: REVERT
00000178: JUMPDEST
00000179: PUSH2 0x00ae
0000017c: PUSH1 0x01
0000017e: PUSH1 0xa0
00000180: PUSH1 0x02
00000182: EXP
00000183: SUB
00000184: PUSH1 0x04
00000186: CALLDATALOAD
00000187: AND
00000188: PUSH2 0x036b
0000018b: JUMP
0000018c: JUMPDEST
0000018d: PUSH2 0x00ae
00000190: PUSH1 0x01
00000192: PUSH1 0xa0
00000194: PUSH1 0x02
00000196: EXP
00000197: SUB
00000198: PUSH1 0x04
0000019a: CALLDATALOAD
0000019b: AND
0000019c: PUSH2 0x0406
0000019f: JUMP
000001a0: JUMPDEST
000001a1: CALLVALUE
000001a2: ISZERO
000001a3: PUSH2 0x01ab
000001a6: JUMPI
000001a7: PUSH1 0x00
000001a9: DUP1
000001aa: REVERT
000001ab: JUMPDEST
000001ac: PUSH2 0x00ae
000001af: PUSH1 0x01
000001b1: PUSH1 0xa0
000001b3: PUSH1 0x02
000001b5: EXP
000001b6: SUB
000001b7: PUSH1 0x04
000001b9: CALLDATALOAD
000001ba: AND
000001bb: PUSH2 0x048a
000001be: JUMP
000001bf: JUMPDEST
000001c0: PUSH1 0x00
000001c2: SLOAD
000001c3: CALLER
000001c4: PUSH1 0x01
000001c6: PUSH1 0xa0
000001c8: PUSH1 0x02
000001ca: EXP
000001cb: SUB
000001cc: SWAP1
000001cd: DUP2
000001ce: AND
000001cf: SWAP2
000001d0: AND
000001d1: EQ
000001d2: PUSH2 0x01da
000001d5: JUMPI
000001d6: PUSH1 0x00
000001d8: DUP1
000001d9: REVERT
000001da: JUMPDEST
000001db: PUSH1 0x00
000001dd: PUSH1 0x02
000001df: DUP1
000001e0: SLOAD
000001e1: PUSH1 0xa0
000001e3: PUSH1 0x02
000001e5: EXP
000001e6: SWAP1
000001e7: DIV
000001e8: PUSH1 0xff
000001ea: AND
000001eb: SWAP1
000001ec: DUP2
000001ed: GT
000001ee: ISZERO
000001ef: PUSH2 0x01f4
000001f2: JUMPI
000001f3: INVALID
000001f4: JUMPDEST
000001f5: EQ
000001f6: PUSH2 0x01fe
000001f9: JUMPI
000001fa: PUSH1 0x00
000001fc: DUP1
000001fd: REVERT
000001fe: JUMPDEST
000001ff: PUSH1 0x02
00000201: DUP1
00000202: SLOAD
00000203: PUSH21 0xff0000000000000000000000000000000000000000
00000219: NOT
0000021a: AND
0000021b: PUSH21 0x020000000000000000000000000000000000000000
00000231: OR
00000232: SWAP1
00000233: SSTORE
00000234: PUSH32 0x1cdde67b72a90f19919ac732a437ac2f7a10fc128d28c2a6e525d89ce5cd9d3a
00000255: PUSH1 0x40
00000257: MLOAD
00000258: PUSH1 0x40
0000025a: MLOAD
0000025b: DUP1
0000025c: SWAP2
0000025d: SUB
0000025e: SWAP1
0000025f: LOG1
00000260: PUSH1 0x02
00000262: SLOAD
00000263: PUSH1 0x01
00000265: PUSH1 0xa0
00000267: PUSH1 0x02
00000269: EXP
0000026a: SUB
0000026b: SWAP1
0000026c: DUP2
0000026d: AND
0000026e: SWAP1
0000026f: ADDRESS
00000270: AND
00000271: BALANCE
00000272: DUP1
00000273: ISZERO
00000274: PUSH2 0x08fc
00000277: MUL
00000278: SWAP1
00000279: PUSH1 0x40
0000027b: MLOAD
0000027c: PUSH1 0x00
0000027e: PUSH1 0x40
00000280: MLOAD
00000281: DUP1
00000282: DUP4
00000283: SUB
00000284: DUP2
00000285: DUP6
00000286: DUP9
00000287: DUP9
00000288: CALL
00000289: SWAP4
0000028a: POP
0000028b: POP
0000028c: POP
0000028d: POP
0000028e: ISZERO
0000028f: ISZERO
00000290: PUSH2 0x0298
00000293: JUMPI
00000294: PUSH1 0x00
00000296: DUP1
00000297: REVERT
00000298: JUMPDEST
00000299: JUMP
0000029a: JUMPDEST
0000029b: PUSH1 0x00
0000029d: SLOAD
0000029e: CALLER
0000029f: PUSH1 0x01
000002a1: PUSH1 0xa0
000002a3: PUSH1 0x02
000002a5: EXP
000002a6: SUB
000002a7: SWAP1
000002a8: DUP2
000002a9: AND
000002aa: SWAP2
000002ab: AND
000002ac: EQ
000002ad: PUSH2 0x02b5
000002b0: JUMPI
000002b1: PUSH1 0x00
000002b3: DUP1
000002b4: REVERT
000002b5: JUMPDEST
000002b6: PUSH1 0x00
000002b8: PUSH1 0x02
000002ba: DUP1
000002bb: SLOAD
000002bc: PUSH1 0xa0
000002be: PUSH1 0x02
000002c0: EXP
000002c1: SWAP1
000002c2: DIV
000002c3: PUSH1 0xff
000002c5: AND
000002c6: SWAP1
000002c7: DUP2
000002c8: GT
000002c9: ISZERO
000002ca: PUSH2 0x02cf
000002cd: JUMPI
000002ce: INVALID
000002cf: JUMPDEST
000002d0: EQ
000002d1: PUSH2 0x02d9
000002d4: JUMPI
000002d5: PUSH1 0x00
000002d7: DUP1
000002d8: REVERT
000002d9: JUMPDEST
000002da: PUSH1 0x02
000002dc: DUP1
000002dd: SLOAD
000002de: PUSH21 0xff0000000000000000000000000000000000000000
000002f4: NOT
000002f5: AND
000002f6: PUSH1 0xa0
000002f8: PUSH1 0x02
000002fa: EXP
000002fb: OR
000002fc: SWAP1
000002fd: SSTORE
000002fe: PUSH32 0x599d8e5a83cffb867d051598c4d70e805d59802d8081c1c7d6dffc5b6aca2b89
0000031f: PUSH1 0x40
00000321: MLOAD
00000322: PUSH1 0x40
00000324: MLOAD
00000325: DUP1
00000326: SWAP2
00000327: SUB
00000328: SWAP1
00000329: LOG1
0000032a: JUMP
0000032b: JUMPDEST
0000032c: PUSH1 0x00
0000032e: SLOAD
0000032f: PUSH1 0x01
00000331: PUSH1 0xa0
00000333: PUSH1 0x02
00000335: EXP
00000336: SUB
00000337: AND
00000338: DUP2
00000339: JUMP
0000033a: JUMPDEST
0000033b: PUSH1 0x02
0000033d: SLOAD
0000033e: PUSH1 0xa0
00000340: PUSH1 0x02
00000342: EXP
00000343: SWAP1
00000344: DIV
00000345: PUSH1 0xff
00000347: AND
00000348: DUP2
00000349: JUMP
0000034a: JUMPDEST
0000034b: PUSH1 0x01
0000034d: PUSH1 0x20
0000034f: MSTORE
00000350: PUSH1 0x00
00000352: SWAP1
00000353: DUP2
00000354: MSTORE
00000355: PUSH1 0x40
00000357: SWAP1
00000358: KECCAK256
00000359: SLOAD
0000035a: DUP2
0000035b: JUMP
0000035c: JUMPDEST
0000035d: PUSH1 0x02
0000035f: SLOAD
00000360: PUSH1 0x01
00000362: PUSH1 0xa0
00000364: PUSH1 0x02
00000366: EXP
00000367: SUB
00000368: AND
00000369: DUP2
0000036a: JUMP
0000036b: JUMPDEST
0000036c: PUSH1 0x00
0000036e: SLOAD
0000036f: CALLER
00000370: PUSH1 0x01
00000372: PUSH1 0xa0
00000374: PUSH1 0x02
00000376: EXP
00000377: SUB
00000378: SWAP1
00000379: DUP2
0000037a: AND
0000037b: SWAP2
0000037c: AND
0000037d: EQ
0000037e: PUSH2 0x0386
00000381: JUMPI
00000382: PUSH1 0x00
00000384: DUP1
00000385: REVERT
00000386: JUMPDEST
00000387: PUSH1 0x01
00000389: PUSH1 0xa0
0000038b: PUSH1 0x02
0000038d: EXP
0000038e: SUB
0000038f: DUP2
00000390: AND
00000391: ISZERO
00000392: ISZERO
00000393: PUSH2 0x039b
00000396: JUMPI
00000397: PUSH1 0x00
00000399: DUP1
0000039a: REVERT
0000039b: JUMPDEST
0000039c: PUSH1 0x00
0000039e: SLOAD
0000039f: PUSH1 0x01
000003a1: PUSH1 0xa0
000003a3: PUSH1 0x02
000003a5: EXP
000003a6: SUB
000003a7: DUP1
000003a8: DUP4
000003a9: AND
000003aa: SWAP2
000003ab: AND
000003ac: PUSH32 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0
000003cd: PUSH1 0x40
000003cf: MLOAD
000003d0: PUSH1 0x40
000003d2: MLOAD
000003d3: DUP1
000003d4: SWAP2
000003d5: SUB
000003d6: SWAP1
000003d7: LOG3
000003d8: PUSH1 0x00
000003da: DUP1
000003db: SLOAD
000003dc: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000003f1: NOT
000003f2: AND
000003f3: PUSH1 0x01
000003f5: PUSH1 0xa0
000003f7: PUSH1 0x02
000003f9: EXP
000003fa: SUB
000003fb: SWAP3
000003fc: SWAP1
000003fd: SWAP3
000003fe: AND
000003ff: SWAP2
00000400: SWAP1
00000401: SWAP2
00000402: OR
00000403: SWAP1
00000404: SSTORE
00000405: JUMP
00000406: JUMPDEST
00000407: PUSH1 0x00
00000409: SLOAD
0000040a: CALLER
0000040b: PUSH1 0x01
0000040d: PUSH1 0xa0
0000040f: PUSH1 0x02
00000411: EXP
00000412: SUB
00000413: SWAP1
00000414: DUP2
00000415: AND
00000416: SWAP2
00000417: AND
00000418: EQ
00000419: PUSH2 0x0421
0000041c: JUMPI
0000041d: PUSH1 0x00
0000041f: DUP1
00000420: REVERT
00000421: JUMPDEST
00000422: PUSH1 0x00
00000424: PUSH1 0x02
00000426: DUP1
00000427: SLOAD
00000428: PUSH1 0xa0
0000042a: PUSH1 0x02
0000042c: EXP
0000042d: SWAP1
0000042e: DIV
0000042f: PUSH1 0xff
00000431: AND
00000432: SWAP1
00000433: DUP2
00000434: GT
00000435: ISZERO
00000436: PUSH2 0x043b
00000439: JUMPI
0000043a: INVALID
0000043b: JUMPDEST
0000043c: EQ
0000043d: PUSH2 0x0445
00000440: JUMPI
00000441: PUSH1 0x00
00000443: DUP1
00000444: REVERT
00000445: JUMPDEST
00000446: PUSH1 0x01
00000448: PUSH1 0xa0
0000044a: PUSH1 0x02
0000044c: EXP
0000044d: SUB
0000044e: DUP2
0000044f: AND
00000450: PUSH1 0x00
00000452: SWAP1
00000453: DUP2
00000454: MSTORE
00000455: PUSH1 0x01
00000457: PUSH1 0x20
00000459: MSTORE
0000045a: PUSH1 0x40
0000045c: SWAP1
0000045d: KECCAK256
0000045e: SLOAD
0000045f: PUSH2 0x046e
00000462: SWAP1
00000463: CALLVALUE
00000464: PUSH4 0xffffffff
00000469: PUSH2 0x053a
0000046c: AND
0000046d: JUMP
0000046e: JUMPDEST
0000046f: PUSH1 0x01
00000471: PUSH1 0xa0
00000473: PUSH1 0x02
00000475: EXP
00000476: SUB
00000477: SWAP1
00000478: SWAP2
00000479: AND
0000047a: PUSH1 0x00
0000047c: SWAP1
0000047d: DUP2
0000047e: MSTORE
0000047f: PUSH1 0x01
00000481: PUSH1 0x20
00000483: MSTORE
00000484: PUSH1 0x40
00000486: SWAP1
00000487: KECCAK256
00000488: SSTORE
00000489: JUMP
0000048a: JUMPDEST
0000048b: PUSH1 0x00
0000048d: PUSH1 0x01
0000048f: PUSH1 0x02
00000491: DUP1
00000492: SLOAD
00000493: PUSH1 0xa0
00000495: PUSH1 0x02
00000497: EXP
00000498: SWAP1
00000499: DIV
0000049a: PUSH1 0xff
0000049c: AND
0000049d: SWAP1
0000049e: DUP2
0000049f: GT
000004a0: ISZERO
000004a1: PUSH2 0x04a6
000004a4: JUMPI
000004a5: INVALID
000004a6: JUMPDEST
000004a7: EQ
000004a8: PUSH2 0x04b0
000004ab: JUMPI
000004ac: PUSH1 0x00
000004ae: DUP1
000004af: REVERT
000004b0: JUMPDEST
000004b1: POP
000004b2: PUSH1 0x01
000004b4: PUSH1 0xa0
000004b6: PUSH1 0x02
000004b8: EXP
000004b9: SUB
000004ba: DUP2
000004bb: AND
000004bc: PUSH1 0x00
000004be: DUP2
000004bf: DUP2
000004c0: MSTORE
000004c1: PUSH1 0x01
000004c3: PUSH1 0x20
000004c5: MSTORE
000004c6: PUSH1 0x40
000004c8: DUP1
000004c9: DUP3
000004ca: KECCAK256
000004cb: DUP1
000004cc: SLOAD
000004cd: SWAP3
000004ce: SWAP1
000004cf: SSTORE
000004d0: SWAP1
000004d1: SWAP2
000004d2: SWAP1
000004d3: DUP3
000004d4: ISZERO
000004d5: PUSH2 0x08fc
000004d8: MUL
000004d9: SWAP1
000004da: DUP4
000004db: SWAP1
000004dc: MLOAD
000004dd: PUSH1 0x00
000004df: PUSH1 0x40
000004e1: MLOAD
000004e2: DUP1
000004e3: DUP4
000004e4: SUB
000004e5: DUP2
000004e6: DUP6
000004e7: DUP9
000004e8: DUP9
000004e9: CALL
000004ea: SWAP4
000004eb: POP
000004ec: POP
000004ed: POP
000004ee: POP
000004ef: ISZERO
000004f0: ISZERO
000004f1: PUSH2 0x04f9
000004f4: JUMPI
000004f5: PUSH1 0x00
000004f7: DUP1
000004f8: REVERT
000004f9: JUMPDEST
000004fa: DUP2
000004fb: PUSH1 0x01
000004fd: PUSH1 0xa0
000004ff: PUSH1 0x02
00000501: EXP
00000502: SUB
00000503: AND
00000504: PUSH32 0xd7dee2702d63ad89917b6a4da9981c90c4d24f8c2bdfd64c604ecae57d8d0651
00000525: DUP3
00000526: PUSH1 0x40
00000528: MLOAD
00000529: SWAP1
0000052a: DUP2
0000052b: MSTORE
0000052c: PUSH1 0x20
0000052e: ADD
0000052f: PUSH1 0x40
00000531: MLOAD
00000532: DUP1
00000533: SWAP2
00000534: SUB
00000535: SWAP1
00000536: LOG2
00000537: POP
00000538: POP
00000539: JUMP
0000053a: JUMPDEST
0000053b: PUSH1 0x00
0000053d: DUP3
0000053e: DUP3
0000053f: ADD
00000540: DUP4
00000541: DUP2
00000542: LT
00000543: ISZERO
00000544: PUSH2 0x0549
00000547: JUMPI
00000548: INVALID
00000549: JUMPDEST
0000054a: SWAP4
0000054b: SWAP3
0000054c: POP
0000054d: POP
0000054e: POP
0000054f: JUMP
00000550: STOP
00000551: LOG1
00000552: PUSH6 0x627a7a723058
00000559: KECCAK256
0000055a: CODESIZE
0000055b: UNKNOWN(0x0E)
0000055c: UNKNOWN(0xE9)
0000055d: UNKNOWN(0xB6)
0000055e: SWAP9
0000055f: REVERT
00000560: UNKNOWN(0xF7)
00000561: SWAP16
00000562: SDIV
00000563: BLOBBASEFEE
00000564: PUSH27