Analysis Run

[codex:65] OpenAI Codex v0.77.0 (research preview)
[codex:65] --------
[codex:65] workdir: /tmp/codex-multi-xqcjy_1e
[codex:65] model: gpt-5.2-codex
[codex:65] provider: openai
[codex:65] approval: never
[codex:65] sandbox: read-only
[codex:65] reasoning effort: xhigh
[codex:65] reasoning summaries: auto
[codex:65] session id: 019b8182-0eef-7600-b27b-dd80bb48836c
[codex:65] --------
[codex:65] user
[codex:65] 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:65] 
[codex:65] Read `BYTECODE_BUNDLE.txt` completely before concluding.
[codex:65] 
[codex:65] ONLY REPORT if you find a CONCRETE, EXPLOITABLE path to profit. We do NOT care about:
[codex:65] - Gas inefficiency, code quality, or best practices
[codex:65] - Theoretical vulnerabilities without a clear extraction path
[codex:65] - Generic footguns (unchecked return values, etc.) unless they enable theft
[codex:65] - Issues requiring social engineering or off-chain coordination
[codex:65] 
[codex:65] PATTERNS WORTH INVESTIGATING in bytecode:
[codex:65] - CALL/DELEGATECALL with controllable destination or calldata
[codex:65] - Value transfers (CALL with non-zero value) without prior CALLER/ORIGIN checks
[codex:65] - SSTORE to low slots (0-10) that might be owner/admin storage
[codex:65] - ecrecover (signature validation) - look for missing nonce/replay protection
[codex:65] - External calls before state updates (reentrancy)
[codex:65] - SELFDESTRUCT with controllable beneficiary
[codex:65] - Proxy patterns (DELEGATECALL to storage slot) with unprotected upgrade paths
[codex:65] 
[codex:65] For each finding, you MUST explain:
[codex:65] 1. The specific bytecode pattern/offsets that indicate the vulnerability
[codex:65] 2. The concrete sequence of transactions to extract value
[codex:65] 3. Why you believe this is exploitable (not just suspicious)
[codex:65] 
[codex:65] If you cannot identify a concrete profit path from bytecode alone: set no_findings=true.
[codex:65] Do NOT hallucinate. Bytecode-only analysis is limited - be honest about uncertainty.
[codex:65] 
[codex:65] Output MUST be valid JSON matching the provided schema.
[codex:65] - severity: info, low, medium, high, critical (use high/critical ONLY for clear extraction paths)
[codex:65] - category: access_control, reentrancy, math, oracle, upgradeability, auth, other
[codex:65] mcp startup: no servers
[codex:65] 
[codex:65] thinking
[codex:65] **Planning to read BYTECODE_BUNDLE.txt**
[codex:65] exec
[codex:65] /bin/bash -lc ls in /tmp/codex-multi-xqcjy_1e succeeded in 5ms:
[codex:65] BYTECODE_BUNDLE.txt
[codex:65] codex-output-schema.json
[codex:65] exec
[codex:65] /bin/bash -lc 'cat BYTECODE_BUNDLE.txt' in /tmp/codex-multi-xqcjy_1e succeeded in 5ms:
[codex:65] Runtime bytecode bundle for best-effort auditing.
[codex:65] Note: without verified source, conclusions are low-confidence unless a concrete pattern is visible.
[codex:65] 
[codex:65] FILE: runtime_bytecode.hex
[codex:65] 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
[codex:65] 
[codex:65] thinking
[codex:65] **Analyzing bytecode for exploits**
[codex:65] exec
[codex:65] /bin/bash -lc 'evm disasm BYTECODE_BUNDLE.txt' in /tmp/codex-multi-xqcjy_1e exited 127 in 6ms:
[codex:65] /bin/bash: line 1: evm: command not found
[codex:65] 
[codex:65] thinking
[codex:65] **Planning manual bytecode disassembly**
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] from binascii import unhexlify
[codex:65] import re
[codex:65] import sys
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] # extract hex after 0x
[codex:65] m=re.search(r'0x([0-9a-fA-F]+)', data)
[codex:65] hexstr=m.group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] # opcode table
[codex:65] opcodes = {
[codex:65] 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:65] 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:65] 0x20:'SHA3',
[codex:65] 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:65] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:65] 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:65] 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:65] 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:65] 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:65] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:65] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:65] }
[codex:65] 
[codex:65] # simple disasm
[codex:65] pc=0
[codex:65] out=[]
[codex:65] while pc < len(code):
[codex:65]     op=code[pc]
[codex:65]     name=opcodes.get(op, 'UNKNOWN')
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         out.append(f\"{pc:04x}: {name} 0x{data.hex()}\")
[codex:65]         pc+=1+n
[codex:65]     else:
[codex:65]         out.append(f\"{pc:04x}: {name}\")
[codex:65]         pc+=1
[codex:65] 
[codex:65] # print to file
[codex:65] with open('/tmp/codex-multi-xqcjy_1e/disasm.txt','w') as f:
[codex:65]     f.write('\\n'.join(out))
[codex:65] print('wrote disasm')
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e exited 1 in 34ms:
[codex:65] Traceback (most recent call last):
[codex:65]   File "<stdin>", line 41, in <module>
[codex:65] PermissionError: [Errno 13] Permission denied: '/tmp/codex-multi-xqcjy_1e/disasm.txt'
[codex:65] 
[codex:65] thinking
[codex:65] **Adapting to read-only environment**
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] from binascii import unhexlify
[codex:65] import re
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] # extract hex after 0x
[codex:65] m=re.search(r'0x([0-9a-fA-F]+)', data)
[codex:65] hexstr=m.group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] # opcode table
[codex:65] opcodes = {
[codex:65] 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:65] 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:65] 0x20:'SHA3',
[codex:65] 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:65] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:65] 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:65] 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:65] 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:65] 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:65] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:65] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:65] }
[codex:65] 
[codex:65] pc=0
[codex:65] while pc < len(code):
[codex:65]     op=code[pc]
[codex:65]     name=opcodes.get(op, 'UNKNOWN')
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         print(f\"{pc:04x}: {name} 0x{data.hex()}\")
[codex:65]         pc+=1+n
[codex:65]     else:
[codex:65]         print(f\"{pc:04x}: {name}\")
[codex:65]         pc+=1
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e succeeded in 36ms:
[codex:65] 0000: PUSH1 0x60
[codex:65] 0002: PUSH1 0x40
[codex:65] 0004: MSTORE
[codex:65] 0005: CALLDATASIZE
[codex:65] 0006: ISZERO
[codex:65] 0007: PUSH2 0x00fb
[codex:65] 000a: JUMPI
[codex:65] 000b: PUSH1 0xe0
[codex:65] 000d: PUSH1 0x02
[codex:65] 000f: EXP
[codex:65] 0010: PUSH1 0x00
[codex:65] 0012: CALLDATALOAD
[codex:65] 0013: DIV
[codex:65] 0014: PUSH4 0x021991e7
[codex:65] 0019: DUP2
[codex:65] 001a: EQ
[codex:65] 001b: PUSH2 0x00fd
[codex:65] 001e: JUMPI
[codex:65] 001f: DUP1
[codex:65] 0020: PUSH4 0x03750d94
[codex:65] 
[codex:65] 
[codex:65] 
[codex:65] 
[codex:65] thinking
[codex:65] **Analyzing contract storage and call flow**
[codex:65] thinking
[codex:65] **Decoding conditional fund transfers and storage checks**
[codex:65] 
[codex:65] I'm parsing the logic behind conditional calls that refund or transfer ETH based on input bounds and storage flags, focusing on how slot0 and slot3 control flow. I’m analyzing intricate stack operations governing whether to trigger event logging, refund msg.value, or allow a time-locked owner withdrawal with masked addresses and call arguments. Let's continue mapping these complex checks together!
[codex:65] thinking
[codex:65] **Tracing stack manipulations for owner withdrawal call**
[codex:65] 
[codex:65] I'm carefully reconstructing the stack swaps and bitwise operations to determine how the call to transfer ETH to the owner is prepared, confirming that the call’s value comes from an input argument and the recipient is masked from storage. It looks like this function enables time-locked owner withdrawals with complex argument reordering to craft the CALL parameters.
[codex:65] thinking
[codex:65] **Planning symbolic stack analysis for withdrawal call**
[codex:65] 
[codex:65] I’m outlining an approach to build a symbolic stack emulator to track stack values through the withdrawal function, aiming to clearly identify CALL parameters and verify if any unprotected or reentrant withdrawal is possible. This will help confirm if the call uses caller-controlled values or protected storage slots.
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] import re
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] hexstr=re.search(r'0x([0-9a-fA-F]+)', data).group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] 
[codex:65] # simple opcode lengths
[codex:65] 
[codex:65] def disasm(pc):
[codex:65]     op=code[pc]
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         return op, data, pc+1+n
[codex:65]     return op, b'', pc+1
[codex:65] 
[codex:65] # symbols
[codex:65] class Sym(str):
[codex:65]     pass
[codex:65] 
[codex:65] # minimal stack simulator
[codex:65] 
[codex:65] def simulate(start, end=None, initial_stack=None):
[codex:65]     stack=list(initial_stack or [])
[codex:65]     mem={}
[codex:65]     pc=start
[codex:65]     steps=0
[codex:65]     while pc < len(code):
[codex:65]         if end is not None and pc>=end:
[codex:65]             break
[codex:65]         op,data,next_pc = disasm(pc)
[codex:65]         #print(hex(pc), op, data)
[codex:65]         name=None
[codex:65]         # handle push
[codex:65]         if 0x60 <= op <= 0x7f:
[codex:65]             val=f\"0x{data.hex()}\"
[codex:65]             stack.append(val)
[codex:65]         elif op==0x50:  # POP
[codex:65]             if stack: stack.pop()
[codex:65]         elif op==0x01:  # ADD
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}+{b})\")
[codex:65]         elif op==0x03:  # SUB
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}-{b})\")
[codex:65]         elif op==0x16:  # AND
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}&{b})\")
[codex:65]         elif op==0x14:  # EQ
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}=={b})\")
[codex:65]         elif op==0x10:  # LT
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}<{b})\")
[codex:65]         elif op==0x11:  # GT
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}>{b})\")
[codex:65]         elif op==0x15:  # ISZERO
[codex:65]             a=stack.pop(); stack.append(f\"("'!{a})")
[codex:65]         elif op==0x20:  # SHA3
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f"keccak({a},{b})")
[codex:65]         elif op==0x33:  # CALLER
[codex:65]             stack.append("CALLER")
[codex:65]         elif op==0x34:  # CALLVALUE
[codex:65]             stack.append("CALLVALUE")
[codex:65]         elif op==0x43:  # NUMBER
[codex:65]             stack.append("BLOCKNUM")
[codex:65]         elif op==0x54:  # SLOAD
[codex:65]             key=stack.pop(); stack.append(f"SLOAD[{key}]")
[codex:65]         elif op==0x55:  # SSTORE
[codex:65]             val=stack.pop(); key=stack.pop(); stack.append(f"SSTORE({key},{val})")
[codex:65]         elif op==0x51:  # MLOAD
[codex:65]             addr=stack.pop(); stack.append(mem.get(addr, f"MLOAD[{addr}]") )
[codex:65]         elif op==0x52:  # MSTORE
[codex:65]             val=stack.pop(); addr=stack.pop(); mem[addr]=val
[codex:65]         elif 0x80 <= op <= 0x8f:  # DUP
[codex:65]             idx=op-0x7f
[codex:65]             if len(stack)>=idx:
[codex:65]                 stack.append(stack[-idx])
[codex:65]         elif 0x90 <= op <= 0x9f:  # SWAP
[codex:65]             idx=op-0x8f
[codex:65]             if len(stack)>idx:
[codex:65]                 stack[-1], stack[-1-idx] = stack[-1-idx], stack[-1]
[codex:65]         elif op==0xf1:  # CALL
[codex:65]             # CALL pops 7 args
[codex:65]             args=stack[-7:]
[codex:65]             print(f"CALL at {pc:#x} stack args(top last): {args}")
[codex:65]             # remove
[codex:65]             for _ in range(7): stack.pop()
[codex:65]             stack.append("CALLRET")
[codex:65]         elif op==0x56:  # JUMP
[codex:65]             dest=stack.pop()
[codex:65]             # stop on jump for this trace
[codex:65]             #print('"'JUMP to', dest)
[codex:65]             break
[codex:65]         elif op==0x57:  # JUMPI
[codex:65]             dest=stack.pop(); cond=stack.pop()
[codex:65]             # ignore
[codex:65]         # other ops ignored
[codex:65]         pc=next_pc
[codex:65]         steps+=1
[codex:65]         if steps>1000:
[codex:65]             print('too many steps')
[codex:65]             break
[codex:65]     print('final stack', stack)
[codex:65] 
[codex:65] # simulate from 0x06b7 to include call
[codex:65] simulate(0x06b7, end=0x06e3, initial_stack=['RET','ARG'])
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e succeeded in 28ms:
[codex:65] CALL at 0x6e2 stack args(top last): ['0x00', 'MLOAD[0x40]', '0x00', 'MLOAD[0x40]', 'SLOAD[keccak(0x40,0x00)]', '((0xa0-0x02)&CALLER)', '0x00']
[codex:65] final stack ['RET', '0x01', 'keccak(0x40,0x00)', '((0xa0-0x02)&CALLER)', '0x00', 'SLOAD[keccak(0x40,0x00)]', 'MLOAD[0x40]', 'CALLRET']
[codex:65] 
[codex:65] thinking
[codex:65] **Analyzing EVM CALL stack arguments**
[codex:65] 
[codex:65] I'm examining how the CALL opcode consumes its 7 stack arguments in the right order, clarifying how the symbolic stack slice maps to gas, to, value, etc. I notice the gas argument looks like zero, which would cause the call to fail, so I suspect the initial symbolic stack used in simulation is incomplete, missing earlier pushes and DUPs that supply the actual gas value. To fix this, I plan to simulate from an earlier entry point with a more complete initial stack and manually steer jump conditions to ensure reaching the CALL instruction accurately. This means coding a symbolic executor that follows a specific jump path with known jump destinations and tracks stack updates precisely. I'll write such a script next.
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] import re
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] hexstr=re.search(r'0x([0-9a-fA-F]+)', data).group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] 
[codex:65] # opcode lengths
[codex:65] 
[codex:65] def op_at(pc):
[codex:65]     op=code[pc]
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         return op, data, pc+1+n
[codex:65]     return op, b'', pc+1
[codex:65] 
[codex:65] # symbolic
[codex:65] 
[codex:65] def is_const(x):
[codex:65]     return isinstance(x,str) and x.startswith('0x')
[codex:65] 
[codex:65] def to_int(x):
[codex:65]     return int(x,16)
[codex:65] 
[codex:65] 
[codex:65] def simulate(pc, stack, mem, max_steps=10000):
[codex:65]     steps=0
[codex:65]     while pc < len(code) and steps<max_steps:
[codex:65]         op,data,next_pc = op_at(pc)
[codex:65]         #print(hex(pc), op, data, stack)
[codex:65]         if 0x60 <= op <= 0x7f:
[codex:65]             stack.append('0x'+data.hex())
[codex:65]         elif op==0x50: # POP
[codex:65]             stack.pop()
[codex:65]         elif op==0x01: # ADD
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}+{b})\")
[codex:65]         elif op==0x03: # SUB
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}-{b})\")
[codex:65]         elif op==0x16: # AND
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}&{b})\")
[codex:65]         elif op==0x14: # EQ
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}=={b})\")
[codex:65]         elif op==0x10: # LT
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}<{b})\")
[codex:65]         elif op==0x11: # GT
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}>{b})\")
[codex:65]         elif op==0x15: # ISZERO
[codex:65]             a=stack.pop(); stack.append(f\"("'!{a})")
[codex:65]         elif op==0x20: # SHA3
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f"keccak({a},{b})")
[codex:65]         elif op==0x33: # CALLER
[codex:65]             stack.append('"'CALLER')
[codex:65]         elif op==0x34: # CALLVALUE
[codex:65]             stack.append('CALLVALUE')
[codex:65]         elif op==0x43: # NUMBER
[codex:65]             stack.append('BLOCKNUM')
[codex:65]         elif op==0x54: # SLOAD
[codex:65]             key=stack.pop(); stack.append(f\"SLOAD[{key}]\")
[codex:65]         elif op==0x55: # SSTORE
[codex:65]             val=stack.pop(); key=stack.pop(); stack.append(f\"SSTORE({key},{val})\")
[codex:65]         elif op==0x51: # MLOAD
[codex:65]             addr=stack.pop(); stack.append(mem.get(addr, f\"MLOAD[{addr}]\") )
[codex:65]         elif op==0x52: # MSTORE
[codex:65]             val=stack.pop(); addr=stack.pop(); mem[addr]=val
[codex:65]         elif 0x80 <= op <= 0x8f:
[codex:65]             idx=op-0x7f
[codex:65]             stack.append(stack[-idx])
[codex:65]         elif 0x90 <= op <= 0x9f:
[codex:65]             idx=op-0x8f
[codex:65]             stack[-1], stack[-1-idx] = stack[-1-idx], stack[-1]
[codex:65]         elif op==0xf1:
[codex:65]             args=stack[-7:]
[codex:65]             print(f\"CALL at {pc:#x} args(bottom->top): {args}\")
[codex:65]             for _ in range(7): stack.pop()
[codex:65]             stack.append('CALLRET')
[codex:65]         elif op==0x56: # JUMP
[codex:65]             dest=stack.pop()
[codex:65]             if is_const(dest):
[codex:65]                 pc=to_int(dest); continue
[codex:65]             else:
[codex:65]                 print('non-const jump dest', dest); break
[codex:65]         elif op==0x57: # JUMPI
[codex:65]             dest=stack.pop(); cond=stack.pop()
[codex:65]             # take jump if dest matches path we want
[codex:65]             if is_const(dest):
[codex:65]                 d=to_int(dest)
[codex:65]                 # decide based on dest address: prefer taking jumps to 0x068c,0x069f,0x0683,0x06b7
[codex:65]                 take = d in (0x068c,0x069f,0x0683,0x06b7)
[codex:65]                 # also if dest is 0x070e? hmm
[codex:65]                 if take:
[codex:65]                     pc=d; continue
[codex:65]             # else fallthrough
[codex:65]         elif op==0x00: # STOP
[codex:65]             break
[codex:65]         # default
[codex:65]         pc=next_pc
[codex:65]         steps+=1
[codex:65]     return stack
[codex:65] 
[codex:65] # simulate from 0x015e -> 0x0322 path manually
[codex:65] stack=['RET']
[codex:65] mem={}
[codex:65] # emulate 015e sequence
[codex:65] stack.append('0x00')
[codex:65] stack.append('0x070e')
[codex:65] # jump to 0322
[codex:65] final=simulate(0x0322, stack, mem, max_steps=2000)
[codex:65] print('final stack', final)
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e succeeded in 26ms:
[codex:65] final stack ['RET', '0x00', '0xe0', '0x02', '0x00']
[codex:65] 
[codex:65] thinking
[codex:65] **Planning detailed symbolic stack simulation**
[codex:65] 
[codex:65] I see the simulation is ending unexpectedly around jump instructions with non-constant destinations, so I want to try a more explicit, manual symbolic simulation for the 06b7 function and carefully track the stack state at key jump points like 068c and 070e. To achieve this, I’ll instrument a targeted stepping script to trace stack evolution from 0322 until entering 068c, ensuring I follow jump conditions precisely for better insight.
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] import re
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] hexstr=re.search(r'0x([0-9a-fA-F]+)', data).group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] 
[codex:65] # op parse
[codex:65] 
[codex:65] def op_at(pc):
[codex:65]     op=code[pc]
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         return op, data, pc+1+n
[codex:65]     return op, b'', pc+1
[codex:65] 
[codex:65] # symbolic helpers
[codex:65] 
[codex:65] def is_const(x):
[codex:65]     return isinstance(x,str) and x.startswith('0x')
[codex:65] 
[codex:65] def to_int(x):
[codex:65]     return int(x,16)
[codex:65] 
[codex:65] 
[codex:65] def step(pc, stack, mem):
[codex:65]     op,data,next_pc=op_at(pc)
[codex:65]     #print(hex(pc), op, data, stack)
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         stack.append('0x'+data.hex())
[codex:65]     elif op==0x50:
[codex:65]         stack.pop()
[codex:65]     elif op==0x01:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}+{b})\")
[codex:65]     elif op==0x03:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}-{b})\")
[codex:65]     elif op==0x16:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}&{b})\")
[codex:65]     elif op==0x14:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}=={b})\")
[codex:65]     elif op==0x10:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}<{b})\")
[codex:65]     elif op==0x11:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}>{b})\")
[codex:65]     elif op==0x15:
[codex:65]         a=stack.pop(); stack.append(f\"("'!{a})")
[codex:65]     elif op==0x20:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f"keccak({a},{b})")
[codex:65]     elif op==0x33:
[codex:65]         stack.append('"'CALLER')
[codex:65]     elif op==0x34:
[codex:65]         stack.append('CALLVALUE')
[codex:65]     elif op==0x43:
[codex:65]         stack.append('BLOCKNUM')
[codex:65]     elif op==0x54:
[codex:65]         key=stack.pop(); stack.append(f\"SLOAD[{key}]\")
[codex:65]     elif op==0x51:
[codex:65]         addr=stack.pop(); stack.append(mem.get(addr, f\"MLOAD[{addr}]\") )
[codex:65]     elif op==0x52:
[codex:65]         val=stack.pop(); addr=stack.pop(); mem[addr]=val
[codex:65]     elif 0x80 <= op <= 0x8f:
[codex:65]         idx=op-0x7f
[codex:65]         stack.append(stack[-idx])
[codex:65]     elif 0x90 <= op <= 0x9f:
[codex:65]         idx=op-0x8f
[codex:65]         stack[-1], stack[-1-idx] = stack[-1-idx], stack[-1]
[codex:65]     elif op==0x56:
[codex:65]         dest=stack.pop()
[codex:65]         return ('JUMP', dest, next_pc)
[codex:65]     elif op==0x57:
[codex:65]         dest=stack.pop(); cond=stack.pop()
[codex:65]         return ('JUMPI', dest, cond, next_pc)
[codex:65]     return ('CONT', None, next_pc)
[codex:65] 
[codex:65] # simulate from 0x0322 until pc==0x068c
[codex:65] pc=0x0322
[codex:65] stack=['RET_MAIN','PARAM0','RET_070e']
[codex:65] mem={}
[codex:65] steps=0
[codex:65] while pc"'!=0x068c and steps<500:
[codex:65]     res=step(pc, stack, mem)
[codex:65]     if res[0]=='"'JUMPI':
[codex:65]         _, dest, cond, next_pc = res
[codex:65]         # take jump if dest==0x068c
[codex:65]         if dest=='0x068c':
[codex:65]             pc=0x068c
[codex:65]             break
[codex:65]         else:
[codex:65]             pc=next_pc
[codex:65]     elif res[0]=='JUMP':
[codex:65]         _, dest, next_pc = res
[codex:65]         # not expected
[codex:65]         pc=next_pc
[codex:65]     else:
[codex:65]         pc=res[2]
[codex:65]     steps+=1
[codex:65] 
[codex:65] print('pc', hex(pc))
[codex:65] print('stack at 068c entry', stack)
[codex:65] print('mem', mem)
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e succeeded in 24ms:
[codex:65] pc 0x68c
[codex:65] stack at 068c entry ['RET_MAIN', 'PARAM0', 'RET_070e', '0x01', '0x00', 'keccak(0x40,0x00)']
[codex:65] mem {'((0xa0-0x02)&CALLER)': '0x00', '0x04': '0x20'}
[codex:65] 
[codex:65] thinking
[codex:65] **Analyzing stack state and planning simulation**
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] import re
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] hexstr=re.search(r'0x([0-9a-fA-F]+)', data).group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] 
[codex:65] # op parse
[codex:65] 
[codex:65] def op_at(pc):
[codex:65]     op=code[pc]
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         return op, data, pc+1+n
[codex:65]     return op, b'', pc+1
[codex:65] 
[codex:65] # symbolic helpers
[codex:65] 
[codex:65] def is_const(x):
[codex:65]     return isinstance(x,str) and x.startswith('0x')
[codex:65] 
[codex:65] def to_int(x):
[codex:65]     return int(x,16)
[codex:65] 
[codex:65] 
[codex:65] def step(pc, stack, mem):
[codex:65]     op,data,next_pc=op_at(pc)
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         stack.append('0x'+data.hex())
[codex:65]     elif op==0x50:
[codex:65]         stack.pop()
[codex:65]     elif op==0x01:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}+{b})\")
[codex:65]     elif op==0x03:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}-{b})\")
[codex:65]     elif op==0x16:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}&{b})\")
[codex:65]     elif op==0x14:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}=={b})\")
[codex:65]     elif op==0x10:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}<{b})\")
[codex:65]     elif op==0x11:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}>{b})\")
[codex:65]     elif op==0x15:
[codex:65]         a=stack.pop(); stack.append(f\"("'!{a})")
[codex:65]     elif op==0x20:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f"keccak({a},{b})")
[codex:65]     elif op==0x33:
[codex:65]         stack.append('"'CALLER')
[codex:65]     elif op==0x34:
[codex:65]         stack.append('CALLVALUE')
[codex:65]     elif op==0x43:
[codex:65]         stack.append('BLOCKNUM')
[codex:65]     elif op==0x54:
[codex:65]         key=stack.pop(); stack.append(f\"SLOAD[{key}]\")
[codex:65]     elif op==0x51:
[codex:65]         addr=stack.pop(); stack.append(mem.get(addr, f\"MLOAD[{addr}]\") )
[codex:65]     elif op==0x52:
[codex:65]         val=stack.pop(); addr=stack.pop(); mem[addr]=val
[codex:65]     elif 0x80 <= op <= 0x8f:
[codex:65]         idx=op-0x7f
[codex:65]         stack.append(stack[-idx])
[codex:65]     elif 0x90 <= op <= 0x9f:
[codex:65]         idx=op-0x8f
[codex:65]         stack[-1], stack[-1-idx] = stack[-1-idx], stack[-1]
[codex:65]     elif op==0x56:
[codex:65]         dest=stack.pop();
[codex:65]         return ('JUMP', dest, next_pc)
[codex:65]     elif op==0x57:
[codex:65]         dest=stack.pop(); cond=stack.pop();
[codex:65]         return ('JUMPI', dest, cond, next_pc)
[codex:65]     return ('CONT', None, next_pc)
[codex:65] 
[codex:65] # Start from stack at 068c entry (from previous run)
[codex:65] stack=['RET_MAIN','PARAM0','RET_070e','0x01','0x00','keccak(0x40,0x00)']
[codex:65] mem={'((0xa0-0x02)&CALLER)':'0x00','0x04':'0x20'}
[codex:65] pc=0x068c
[codex:65] steps=0
[codex:65] while steps<1000:
[codex:65]     if pc==0x06b7:
[codex:65]         break
[codex:65]     res=step(pc, stack, mem)
[codex:65]     if res[0]=='JUMPI':
[codex:65]         _, dest, cond, next_pc = res
[codex:65]         if dest in ('0x069f','0x0683','0x06b7'):
[codex:65]             pc=int(dest,16); continue
[codex:65]         else:
[codex:65]             pc=next_pc
[codex:65]     elif res[0]=='JUMP':
[codex:65]         _, dest, next_pc = res
[codex:65]         if dest=='0x0688' or dest=='0x070e':
[codex:65]             pc=int(dest,16); continue
[codex:65]         else:
[codex:65]             pc=next_pc
[codex:65]     else:
[codex:65]         pc=res[2]
[codex:65]     steps+=1
[codex:65] 
[codex:65] print('pc', hex(pc))
[codex:65] print('stack at 06b7 entry', stack)
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e exited 1 in 28ms:
[codex:65] Traceback (most recent call last):
[codex:65]   File "<stdin>", line 82, in <module>
[codex:65]   File "<stdin>", line 65, in step
[codex:65] IndexError: list index out of range
[codex:65] 
[codex:65] thinking
[codex:65] **Debugging stack underflow**
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] import re
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] hexstr=re.search(r'0x([0-9a-fA-F]+)', data).group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] 
[codex:65] # op parse
[codex:65] 
[codex:65] def op_at(pc):
[codex:65]     op=code[pc]
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         return op, data, pc+1+n
[codex:65]     return op, b'', pc+1
[codex:65] 
[codex:65] # symbolic helpers
[codex:65] 
[codex:65] def step(pc, stack, mem):
[codex:65]     op,data,next_pc=op_at(pc)
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         stack.append('0x'+data.hex())
[codex:65]     elif op==0x50:
[codex:65]         stack.pop()
[codex:65]     elif op==0x01:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}+{b})\")
[codex:65]     elif op==0x03:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}-{b})\")
[codex:65]     elif op==0x16:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}&{b})\")
[codex:65]     elif op==0x14:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}=={b})\")
[codex:65]     elif op==0x10:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}<{b})\")
[codex:65]     elif op==0x11:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f\"({a}>{b})\")
[codex:65]     elif op==0x15:
[codex:65]         a=stack.pop(); stack.append(f\"("'!{a})")
[codex:65]     elif op==0x20:
[codex:65]         b=stack.pop(); a=stack.pop(); stack.append(f"keccak({a},{b})")
[codex:65]     elif op==0x33:
[codex:65]         stack.append('"'CALLER')
[codex:65]     elif op==0x34:
[codex:65]         stack.append('CALLVALUE')
[codex:65]     elif op==0x43:
[codex:65]         stack.append('BLOCKNUM')
[codex:65]     elif op==0x54:
[codex:65]         key=stack.pop(); stack.append(f\"SLOAD[{key}]\")
[codex:65]     elif op==0x51:
[codex:65]         addr=stack.pop(); stack.append(mem.get(addr, f\"MLOAD[{addr}]\") )
[codex:65]     elif op==0x52:
[codex:65]         val=stack.pop(); addr=stack.pop(); mem[addr]=val
[codex:65]     elif 0x80 <= op <= 0x8f:
[codex:65]         idx=op-0x7f
[codex:65]         stack.append(stack[-idx])
[codex:65]     elif 0x90 <= op <= 0x9f:
[codex:65]         idx=op-0x8f
[codex:65]         stack[-1], stack[-1-idx] = stack[-1-idx], stack[-1]
[codex:65]     elif op==0x56:
[codex:65]         dest=stack.pop();
[codex:65]         return ('JUMP', dest, next_pc)
[codex:65]     elif op==0x57:
[codex:65]         dest=stack.pop(); cond=stack.pop();
[codex:65]         return ('JUMPI', dest, cond, next_pc)
[codex:65]     return ('CONT', None, next_pc)
[codex:65] 
[codex:65] stack=['RET_MAIN','PARAM0','RET_070e','0x01','0x00','keccak(0x40,0x00)']
[codex:65] mem={'((0xa0-0x02)&CALLER)':'0x00','0x04':'0x20'}
[codex:65] pc=0x068c
[codex:65] steps=0
[codex:65] while steps<1000:
[codex:65]     try:
[codex:65]         res=step(pc, stack, mem)
[codex:65]     except Exception as e:
[codex:65]         print('error at', hex(pc), 'stack', stack)
[codex:65]         raise
[codex:65]     if res[0]=='JUMPI':
[codex:65]         _, dest, cond, next_pc = res
[codex:65]         if dest in ('0x069f','0x0683','0x06b7'):
[codex:65]             pc=int(dest,16); continue
[codex:65]         else:
[codex:65]             pc=next_pc
[codex:65]     elif res[0]=='JUMP':
[codex:65]         _, dest, next_pc = res
[codex:65]         if dest=='0x0688' or dest=='0x070e':
[codex:65]             pc=int(dest,16); continue
[codex:65]         else:
[codex:65]             pc=next_pc
[codex:65]     else:
[codex:65]         pc=res[2]
[codex:65]     steps+=1
[codex:65] 
[codex:65] print('end pc', hex(pc))
[codex:65] print('stack', stack)
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e exited 1 in 29ms:
[codex:65] error at 0x68a stack ['0x01']
[codex:65] Traceback (most recent call last):
[codex:65]   File "<stdin>", line 73, in <module>
[codex:65]   File "<stdin>", line 58, in step
[codex:65] IndexError: list index out of range
[codex:65] 
[codex:65] thinking
[codex:65] **Analyzing potential reentrancy and storage access**
[codex:65] 
[codex:65] I'm examining the stack behavior and call instructions to understand if a reentrancy exploit is possible, focusing on the CALL to the caller with value loaded from storage before storage is updated. The call’s gas parameter and absence of reentrancy guards complicate confirming an exploit. I’m also checking for unauthorized storage writes or critical owner changes but find no obvious vulnerable SSTOREs or delegatecalls. Next, I plan to symbolically simulate a specific function that uses mapping lookups and conditional jumps to trace access control and call safety more precisely.
[codex:65] exec
[codex:65] /bin/bash -lc "python - <<'PY'
[codex:65] import re
[codex:65] 
[codex:65] data=open('/tmp/codex-multi-xqcjy_1e/BYTECODE_BUNDLE.txt').read()
[codex:65] hexstr=re.search(r'0x([0-9a-fA-F]+)', data).group(1)
[codex:65] code=bytes.fromhex(hexstr)
[codex:65] 
[codex:65] def op_at(pc):
[codex:65]     op=code[pc]
[codex:65]     if 0x60 <= op <= 0x7f:
[codex:65]         n=op-0x5f
[codex:65]         data=code[pc+1:pc+1+n]
[codex:65]         return op, data, pc+1+n
[codex:65]     return op, b'', pc+1
[codex:65] 
[codex:65] # symbolic stack sim with memory
[codex:65] 
[codex:65] def simulate_to(pc_start, target_pc, initial_stack):
[codex:65]     stack=list(initial_stack)
[codex:65]     mem={}
[codex:65]     pc=pc_start
[codex:65]     steps=0
[codex:65]     while pc"'!=target_pc and steps<1000:
[codex:65]         op,data,next_pc=op_at(pc)
[codex:65]         if 0x60 <= op <= 0x7f:
[codex:65]             stack.append('"'0x'+data.hex())
[codex:65]         elif op==0x50:
[codex:65]             stack.pop()
[codex:65]         elif op==0x01:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}+{b})\")
[codex:65]         elif op==0x03:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}-{b})\")
[codex:65]         elif op==0x16:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}&{b})\")
[codex:65]         elif op==0x14:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}=={b})\")
[codex:65]         elif op==0x10:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}<{b})\")
[codex:65]         elif op==0x11:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}>{b})\")
[codex:65]         elif op==0x15:
[codex:65]             a=stack.pop(); stack.append(f\"("'!{a})")
[codex:65]         elif op==0x20:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f"keccak({a},{b})")
[codex:65]         elif op==0x33:
[codex:65]             stack.append('"'CALLER')
[codex:65]         elif op==0x54:
[codex:65]             key=stack.pop(); stack.append(f\"SLOAD[{key}]\")
[codex:65]         elif op==0x51:
[codex:65]             addr=stack.pop(); stack.append(mem.get(addr, f\"MLOAD[{addr}]\") )
[codex:65]         elif op==0x52:
[codex:65]             val=stack.pop(); addr=stack.pop(); mem[addr]=val
[codex:65]         elif 0x80 <= op <= 0x8f:
[codex:65]             idx=op-0x7f
[codex:65]             stack.append(stack[-idx])
[codex:65]         elif 0x90 <= op <= 0x9f:
[codex:65]             idx=op-0x8f
[codex:65]             stack[-1], stack[-1-idx] = stack[-1-idx], stack[-1]
[codex:65]         elif op==0x57:
[codex:65]             # JUMPI
[codex:65]             dest=stack.pop(); cond=stack.pop()
[codex:65]             if dest=='0x0583':
[codex:65]                 pc=0x0583
[codex:65]                 break
[codex:65]             else:
[codex:65]                 pc=next_pc
[codex:65]                 steps+=1
[codex:65]                 continue
[codex:65]         elif op==0x56:
[codex:65]             dest=stack.pop()
[codex:65]             pc=next_pc
[codex:65]             steps+=1
[codex:65]             continue
[codex:65]         pc=next_pc
[codex:65]         steps+=1
[codex:65]     print('Reached', hex(pc))
[codex:65]     print('Stack', stack)
[codex:65]     return stack
[codex:65] 
[codex:65] # initial stack at function 02ed entry: [RET]
[codex:65] stack=simulate_to(0x02ed, 0x0583, ['RET','ARG'])
[codex:65] 
[codex:65] # Now simulate from 0x0583 to the CALL at 0x05ff
[codex:65] 
[codex:65] def simulate_call(pc_start, initial_stack):
[codex:65]     stack=list(initial_stack)
[codex:65]     mem={}
[codex:65]     pc=pc_start
[codex:65]     steps=0
[codex:65]     while pc< len(code) and steps<500:
[codex:65]         op,data,next_pc=op_at(pc)
[codex:65]         if 0x60 <= op <= 0x7f:
[codex:65]             stack.append('0x'+data.hex())
[codex:65]         elif op==0x50:
[codex:65]             stack.pop()
[codex:65]         elif op==0x01:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}+{b})\")
[codex:65]         elif op==0x03:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}-{b})\")
[codex:65]         elif op==0x16:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}&{b})\")
[codex:65]         elif op==0x14:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}=={b})\")
[codex:65]         elif op==0x10:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}<{b})\")
[codex:65]         elif op==0x11:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f\"({a}>{b})\")
[codex:65]         elif op==0x15:
[codex:65]             a=stack.pop(); stack.append(f\"("'!{a})")
[codex:65]         elif op==0x20:
[codex:65]             b=stack.pop(); a=stack.pop(); stack.append(f"keccak({a},{b})")
[codex:65]         elif op==0x33:
[codex:65]             stack.append('"'CALLER')
[codex:65]         elif op==0x54:
[codex:65]             key=stack.pop(); stack.append(f\"SLOAD[{key}]\")
[codex:65]         elif op==0x51:
[codex:65]             addr=stack.pop(); stack.append(mem.get(addr, f\"MLOAD[{addr}]\") )
[codex:65]         elif op==0x52:
[codex:65]             val=stack.pop(); addr=stack.pop(); mem[addr]=val
[codex:65]         elif 0x80 <= op <= 0x8f:
[codex:65]             idx=op-0x7f
[codex:65]             stack.append(stack[-idx])
[codex:65]         elif 0x90 <= op <= 0x9f:
[codex:65]             idx=op-0x8f
[codex:65]             stack[-1], stack[-1-idx] = stack[-1-idx], stack[-1]
[codex:65]         elif op==0xf1:
[codex:65]             args=stack[-7:]
[codex:65]             print('CALL args bottom->top', args)
[codex:65]             return
[codex:65]         elif op==0x57:
[codex:65]             dest=stack.pop(); cond=stack.pop();
[codex:65]             # assume we take any JUMPI to keep going
[codex:65]             if isinstance(dest,str) and dest.startswith('0x'):
[codex:65]                 pc=int(dest,16); continue
[codex:65]         elif op==0x56:
[codex:65]             dest=stack.pop();
[codex:65]             if isinstance(dest,str) and dest.startswith('0x'):
[codex:65]                 pc=int(dest,16); continue
[codex:65]         pc=next_pc
[codex:65]         steps+=1
[codex:65] 
[codex:65] simulate_call(0x0583, stack)
[codex:65] PY" in /tmp/codex-multi-xqcjy_1e succeeded in 31ms:
[codex:65] Reached 0x583
[codex:65] Stack ['RET', 'ARG', '0x00fb', '0x04', '0x01', 'keccak(0x40,0x00)']
[codex:65] 
[codex:65] thinking
[codex:65] **Analyzing bytecode for exploits**
[codex:65] 
[codex:65] I'm reviewing the call sites in the bytecode, checking if any calls are unprotected or allow unauthorized value extraction. Since no concrete exploit paths appear and owner checks hold, I’ll prepare a JSON response indicating no findings with a concise summary.
[codex:65] codex
[codex:65] {"no_findings":true,"summary":"Reviewed the full runtime bytecode bundle and identified multiple CALL sites with owner/mapping checks and refund logic, but no concrete, exploitable value-extraction path without authorized state was evident from bytecode alone.","findings":[]}
[codex:65] tokens used
[codex:65] 125,187
[codex:65] {"no_findings":true,"summary":"Reviewed the full runtime bytecode bundle and identified multiple CALL sites with owner/mapping checks and refund logic, but no concrete, exploitable value-extraction path without authorized state was evident from bytecode alone.","findings":[]}

{
    "codex": {
        "ran_at": "2026-01-03T01:48:39.158929+00:00",
        "returncode": 0
    },
    "summary": "Reviewed the full runtime bytecode bundle and identified multiple CALL sites with owner/mapping checks and refund logic, but no concrete, exploitable value-extraction path without authorized state was evident from bytecode alone.",
    "raw_final": {
        "summary": "Reviewed the full runtime bytecode bundle and identified multiple CALL sites with owner/mapping checks and refund logic, but no concrete, exploitable value-extraction path without authorized state was evident from bytecode alone.",
        "findings": [],
        "no_findings": true
    },
    "no_findings": true,
    "schema_version": 1
}

00000000: PUSH1 0x60
00000002: PUSH1 0x40
00000004: MSTORE
00000005: CALLDATASIZE
00000006: ISZERO
00000007: PUSH2 0x00fb
0000000a: JUMPI
0000000b: PUSH1 0xe0
0000000d: PUSH1 0x02
0000000f: EXP
00000010: PUSH1 0x00
00000012: CALLDATALOAD
00000013: DIV
00000014: PUSH4 0x021991e7
00000019: DUP2
0000001a: EQ
0000001b: PUSH2 0x00fd
0000001e: JUMPI
0000001f: DUP1
00000020: PUSH4 0x03750d94
00000025: EQ
00000026: PUSH2 0x0107
00000029: JUMPI
0000002a: DUP1
0000002b: PUSH4 0x06b5f02d
00000030: EQ
00000031: PUSH2 0x012d
00000034: JUMPI
00000035: DUP1
00000036: PUSH4 0x0d1fce42
0000003b: EQ
0000003c: PUSH2 0x014b
0000003f: JUMPI
00000040: DUP1
00000041: PUSH4 0x0e1da6c3
00000046: EQ
00000047: PUSH2 0x015e
0000004a: JUMPI
0000004b: DUP1
0000004c: PUSH4 0x0f06670a
00000051: EQ
00000052: PUSH2 0x016b
00000055: JUMPI
00000056: DUP1
00000057: PUSH4 0x2d9a37d3
0000005c: EQ
0000005d: PUSH2 0x019b
00000060: JUMPI
00000061: DUP1
00000062: PUSH4 0x2e1a7d4d
00000067: EQ
00000068: PUSH2 0x01b5
0000006b: JUMPI
0000006c: DUP1
0000006d: PUSH4 0x2fac1d36
00000072: EQ
00000073: PUSH2 0x01d8
00000076: JUMPI
00000077: DUP1
00000078: PUSH4 0x46b305d6
0000007d: EQ
0000007e: PUSH2 0x0209
00000081: JUMPI
00000082: DUP1
00000083: PUSH4 0x55b775ea
00000088: EQ
00000089: PUSH2 0x022c
0000008c: JUMPI
0000008d: DUP1
0000008e: PUSH4 0x839930ba
00000093: EQ
00000094: PUSH2 0x024f
00000097: JUMPI
00000098: DUP1
00000099: PUSH4 0x8772ae3c
0000009e: EQ
0000009f: PUSH2 0x025a
000000a2: JUMPI
000000a3: DUP1
000000a4: PUSH4 0x8d216186
000000a9: EQ
000000aa: PUSH2 0x027d
000000ad: JUMPI
000000ae: DUP1
000000af: PUSH4 0xa094a031
000000b4: EQ
000000b5: PUSH2 0x02af
000000b8: JUMPI
000000b9: DUP1
000000ba: PUSH4 0xa1b9af31
000000bf: EQ
000000c0: PUSH2 0x0209
000000c3: JUMPI
000000c4: DUP1
000000c5: PUSH4 0xadd4c784
000000ca: EQ
000000cb: PUSH2 0x02bd
000000ce: JUMPI
000000cf: DUP1
000000d0: PUSH4 0xbd66528a
000000d5: EQ
000000d6: PUSH2 0x02ed
000000d9: JUMPI
000000da: DUP1
000000db: PUSH4 0xc7cf28fe
000000e0: EQ
000000e1: PUSH2 0x031e
000000e4: JUMPI
000000e5: DUP1
000000e6: PUSH4 0xcb96012e
000000eb: EQ
000000ec: PUSH2 0x034b
000000ef: JUMPI
000000f0: DUP1
000000f1: PUSH4 0xd8389dc5
000000f6: EQ
000000f7: PUSH2 0x035c
000000fa: JUMPI
000000fb: JUMPDEST
000000fc: STOP
000000fd: JUMPDEST
000000fe: PUSH2 0x0379
00000101: PUSH1 0x00
00000103: SLOAD
00000104: JUMPDEST
00000105: SWAP1
00000106: JUMP
00000107: JUMPDEST
00000108: PUSH2 0x00fb
0000010b: PUSH1 0x04
0000010d: CALLDATALOAD
0000010e: PUSH1 0x24
00000110: CALLDATALOAD
00000111: PUSH1 0x02
00000113: SLOAD
00000114: PUSH1 0x01
00000116: PUSH1 0xa0
00000118: PUSH1 0x02
0000011a: EXP
0000011b: SUB
0000011c: SWAP1
0000011d: DUP2
0000011e: AND
0000011f: CALLER
00000120: SWAP2
00000121: SWAP1
00000122: SWAP2
00000123: AND
00000124: EQ
00000125: PUSH2 0x047a
00000128: JUMPI
00000129: PUSH2 0x0432
0000012c: JUMP
0000012d: JUMPDEST
0000012e: PUSH2 0x0379
00000131: PUSH1 0x04
00000133: CALLDATALOAD
00000134: PUSH1 0x24
00000136: CALLDATALOAD
00000137: JUMPDEST
00000138: PUSH1 0x64
0000013a: PUSH1 0x62
0000013c: DUP4
0000013d: MUL
0000013e: DIV
0000013f: PUSH2 0x0100
00000142: MUL
00000143: DUP2
00000144: SWAP1
00000145: DIV
00000146: SWAP3
00000147: SWAP2
00000148: POP
00000149: POP
0000014a: JUMP
0000014b: JUMPDEST
0000014c: PUSH2 0x0379
0000014f: ADDRESS
00000150: PUSH1 0x01
00000152: PUSH1 0xa0
00000154: PUSH1 0x02
00000156: EXP
00000157: SUB
00000158: AND
00000159: BALANCE
0000015a: PUSH2 0x0104
0000015d: JUMP
0000015e: JUMPDEST
0000015f: PUSH2 0x00fb
00000162: PUSH1 0x00
00000164: PUSH2 0x070e
00000167: PUSH2 0x0322
0000016a: JUMP
0000016b: JUMPDEST
0000016c: PUSH2 0x0379
0000016f: PUSH1 0x04
00000171: CALLDATALOAD
00000172: PUSH1 0x01
00000174: PUSH1 0xa0
00000176: PUSH1 0x02
00000178: EXP
00000179: SUB
0000017a: CALLER
0000017b: AND
0000017c: PUSH1 0x00
0000017e: SWAP1
0000017f: DUP2
00000180: MSTORE
00000181: PUSH1 0x04
00000183: PUSH1 0x20
00000185: DUP2
00000186: SWAP1
00000187: MSTORE
00000188: PUSH1 0x40
0000018a: DUP3
0000018b: KECCAK256
0000018c: SWAP1
0000018d: DUP2
0000018e: ADD
0000018f: SLOAD
00000190: DUP3
00000191: EQ
00000192: ISZERO
00000193: PUSH2 0x0520
00000196: JUMPI
00000197: PUSH2 0x04cd
0000019a: JUMP
0000019b: JUMPDEST
0000019c: PUSH2 0x0379
0000019f: JUMPDEST
000001a0: PUSH1 0x64
000001a2: ADDRESS
000001a3: PUSH1 0x01
000001a5: PUSH1 0xa0
000001a7: PUSH1 0x02
000001a9: EXP
000001aa: SUB
000001ab: AND
000001ac: BALANCE
000001ad: PUSH1 0x05
000001af: MUL
000001b0: DIV
000001b1: PUSH2 0x0104
000001b4: JUMP
000001b5: JUMPDEST
000001b6: PUSH2 0x00fb
000001b9: PUSH1 0x04
000001bb: CALLDATALOAD
000001bc: PUSH1 0x01
000001be: SLOAD
000001bf: PUSH1 0x01
000001c1: PUSH1 0xa0
000001c3: PUSH1 0x02
000001c5: EXP
000001c6: SUB
000001c7: SWAP1
000001c8: DUP2
000001c9: AND
000001ca: CALLER
000001cb: SWAP2
000001cc: SWAP1
000001cd: SWAP2
000001ce: AND
000001cf: EQ
000001d0: PUSH2 0x0740
000001d3: JUMPI
000001d4: PUSH2 0x070b
000001d7: JUMP
000001d8: JUMPDEST
000001d9: PUSH2 0x0379
000001dc: PUSH1 0x04
000001de: CALLDATALOAD
000001df: JUMPDEST
000001e0: PUSH1 0x01
000001e2: PUSH1 0xa0
000001e4: PUSH1 0x02
000001e6: EXP
000001e7: SUB
000001e8: DUP2
000001e9: AND
000001ea: PUSH1 0x00
000001ec: SWAP1
000001ed: DUP2
000001ee: MSTORE
000001ef: PUSH1 0x04
000001f1: PUSH1 0x20
000001f3: DUP2
000001f4: SWAP1
000001f5: MSTORE
000001f6: PUSH1 0x40
000001f8: DUP3
000001f9: KECCAK256
000001fa: SWAP1
000001fb: DUP2
000001fc: ADD
000001fd: SLOAD
000001fe: DUP3
000001ff: EQ
00000200: ISZERO
00000201: PUSH2 0x04c8
00000204: JUMPI
00000205: PUSH2 0x04cd
00000208: JUMP
00000209: JUMPDEST
0000020a: PUSH2 0x00fb
0000020d: PUSH1 0x01
0000020f: SLOAD
00000210: PUSH1 0x00
00000212: SWAP1
00000213: PUSH1 0x01
00000215: PUSH1 0xa0
00000217: PUSH1 0x02
00000219: EXP
0000021a: SUB
0000021b: SWAP1
0000021c: DUP2
0000021d: AND
0000021e: CALLER
0000021f: SWAP2
00000220: SWAP1
00000221: SWAP2
00000222: AND
00000223: EQ
00000224: PUSH2 0x070b
00000227: JUMPI
00000228: PUSH2 0x070b
0000022b: JUMP
0000022c: JUMPDEST
0000022d: PUSH2 0x00fb
00000230: PUSH1 0x04
00000232: CALLDATALOAD
00000233: PUSH1 0x01
00000235: SLOAD
00000236: PUSH1 0x01
00000238: PUSH1 0xa0
0000023a: PUSH1 0x02
0000023c: EXP
0000023d: SUB
0000023e: SWAP1
0000023f: DUP2
00000240: AND
00000241: CALLER
00000242: SWAP2
00000243: SWAP1
00000244: SWAP2
00000245: AND
00000246: EQ
00000247: PUSH2 0x071e
0000024a: JUMPI
0000024b: PUSH2 0x070b
0000024e: JUMP
0000024f: JUMPDEST
00000250: PUSH2 0x0379
00000253: PUSH1 0x03
00000255: SLOAD
00000256: PUSH2 0x0104
00000259: JUMP
0000025a: JUMPDEST
0000025b: PUSH2 0x00fb
0000025e: PUSH1 0x04
00000260: CALLDATALOAD
00000261: PUSH1 0x01
00000263: SLOAD
00000264: PUSH1 0x01
00000266: PUSH1 0xa0
00000268: PUSH1 0x02
0000026a: EXP
0000026b: SUB
0000026c: SWAP1
0000026d: DUP2
0000026e: AND
0000026f: CALLER
00000270: SWAP2
00000271: SWAP1
00000272: SWAP2
00000273: AND
00000274: EQ
00000275: PUSH2 0x0719
00000278: JUMPI
00000279: PUSH2 0x070b
0000027c: JUMP
0000027d: JUMPDEST
0000027e: PUSH2 0x00fb
00000281: PUSH1 0x04
00000283: CALLDATALOAD
00000284: PUSH1 0x24
00000286: CALLDATALOAD
00000287: PUSH1 0x01
00000289: DUP3
0000028a: LT
0000028b: DUP1
0000028c: PUSH2 0x0295
0000028f: JUMPI
00000290: POP
00000291: PUSH1 0xff
00000293: DUP3
00000294: GT
00000295: JUMPDEST
00000296: DUP1
00000297: PUSH2 0x02a1
0000029a: JUMPI
0000029b: POP
0000029c: PUSH1 0x03
0000029e: SLOAD
0000029f: CALLVALUE
000002a0: LT
000002a1: JUMPDEST
000002a2: DUP1
000002a3: PUSH2 0x0438
000002a6: JUMPI
000002a7: POP
000002a8: PUSH2 0x0470
000002ab: PUSH2 0x019f
000002ae: JUMP
000002af: JUMPDEST
000002b0: PUSH2 0x0379
000002b3: PUSH1 0x00
000002b5: PUSH2 0x04c1
000002b8: CALLER
000002b9: PUSH2 0x01df
000002bc: JUMP
000002bd: JUMPDEST
000002be: PUSH2 0x0379
000002c1: PUSH1 0x04
000002c3: CALLDATALOAD
000002c4: PUSH1 0x01
000002c6: PUSH1 0xa0
000002c8: PUSH1 0x02
000002ca: EXP
000002cb: SUB
000002cc: CALLER
000002cd: AND
000002ce: PUSH1 0x00
000002d0: SWAP1
000002d1: DUP2
000002d2: MSTORE
000002d3: PUSH1 0x04
000002d5: PUSH1 0x20
000002d7: DUP2
000002d8: SWAP1
000002d9: MSTORE
000002da: PUSH1 0x40
000002dc: DUP3
000002dd: KECCAK256
000002de: SWAP1
000002df: DUP2
000002e0: ADD
000002e1: SLOAD
000002e2: DUP3
000002e3: EQ
000002e4: ISZERO
000002e5: PUSH2 0x04d3
000002e8: JUMPI
000002e9: PUSH2 0x04cd
000002ec: JUMP
000002ed: JUMPDEST
000002ee: PUSH2 0x00fb
000002f1: PUSH1 0x04
000002f3: CALLDATALOAD
000002f4: PUSH1 0x01
000002f6: PUSH1 0xa0
000002f8: PUSH1 0x02
000002fa: EXP
000002fb: SUB
000002fc: CALLER
000002fd: AND
000002fe: PUSH1 0x00
00000300: SWAP1
00000301: DUP2
00000302: MSTORE
00000303: PUSH1 0x04
00000305: PUSH1 0x20
00000307: DUP2
00000308: SWAP1
00000309: MSTORE
0000030a: PUSH1 0x40
0000030c: DUP3
0000030d: KECCAK256
0000030e: SWAP1
0000030f: DUP2
00000310: ADD
00000311: SLOAD
00000312: SWAP1
00000313: SWAP2
00000314: EQ
00000315: ISZERO
00000316: PUSH2 0x0583
00000319: JUMPI
0000031a: PUSH2 0x0432
0000031d: JUMP
0000031e: JUMPDEST
0000031f: PUSH2 0x0379
00000322: JUMPDEST
00000323: PUSH1 0x01
00000325: PUSH1 0xa0
00000327: PUSH1 0x02
00000329: EXP
0000032a: SUB
0000032b: CALLER
0000032c: AND
0000032d: PUSH1 0x00
0000032f: SWAP1
00000330: DUP2
00000331: MSTORE
00000332: PUSH1 0x04
00000334: PUSH1 0x20
00000336: DUP2
00000337: SWAP1
00000338: MSTORE
00000339: PUSH1 0x40
0000033b: DUP3
0000033c: KECCAK256
0000033d: SWAP1
0000033e: DUP2
0000033f: ADD
00000340: SLOAD
00000341: DUP3
00000342: EQ
00000343: PUSH2 0x068c
00000346: JUMPI
00000347: PUSH2 0x0688
0000034a: JUMP
0000034b: JUMPDEST
0000034c: PUSH2 0x0379
0000034f: PUSH1 0x04
00000351: CALLDATALOAD
00000352: JUMPDEST
00000353: PUSH1 0xff
00000355: DUP2
00000356: AND
00000357: JUMPDEST
00000358: SWAP2
00000359: SWAP1
0000035a: POP
0000035b: JUMP
0000035c: JUMPDEST
0000035d: PUSH2 0x0379
00000360: PUSH1 0x04
00000362: CALLDATALOAD
00000363: PUSH1 0x40
00000365: DUP1
00000366: MLOAD
00000367: DUP3
00000368: DUP2
00000369: MSTORE
0000036a: SWAP1
0000036b: MLOAD
0000036c: SWAP1
0000036d: DUP2
0000036e: SWAP1
0000036f: SUB
00000370: PUSH1 0x20
00000372: ADD
00000373: SWAP1
00000374: KECCAK256
00000375: PUSH2 0x0357
00000378: JUMP
00000379: JUMPDEST
0000037a: PUSH1 0x40
0000037c: DUP1
0000037d: MLOAD
0000037e: SWAP2
0000037f: DUP3
00000380: MSTORE
00000381: MLOAD
00000382: SWAP1
00000383: DUP2
00000384: SWAP1
00000385: SUB
00000386: PUSH1 0x20
00000388: ADD
00000389: SWAP1
0000038a: RETURN
0000038b: JUMPDEST
0000038c: PUSH1 0x40
0000038e: DUP1
0000038f: MLOAD
00000390: PUSH1 0xa0
00000392: DUP2
00000393: ADD
00000394: DUP3
00000395: MSTORE
00000396: CALLVALUE
00000397: DUP1
00000398: DUP3
00000399: MSTORE
0000039a: PUSH1 0x20
0000039c: DUP3
0000039d: DUP2
0000039e: ADD
0000039f: DUP7
000003a0: DUP2
000003a1: MSTORE
000003a2: NUMBER
000003a3: DUP5
000003a4: DUP7
000003a5: ADD
000003a6: DUP2
000003a7: DUP2
000003a8: MSTORE
000003a9: PUSH1 0x60
000003ab: DUP7
000003ac: DUP2
000003ad: ADD
000003ae: DUP10
000003af: DUP2
000003b0: MSTORE
000003b1: PUSH1 0x00
000003b3: PUSH1 0x80
000003b5: DUP10
000003b6: ADD
000003b7: DUP2
000003b8: DUP2
000003b9: MSTORE
000003ba: PUSH1 0x01
000003bc: PUSH1 0xa0
000003be: PUSH1 0x02
000003c0: EXP
000003c1: SUB
000003c2: CALLER
000003c3: AND
000003c4: DUP1
000003c5: DUP4
000003c6: MSTORE
000003c7: PUSH1 0x04
000003c9: DUP1
000003ca: DUP11
000003cb: MSTORE
000003cc: SWAP3
000003cd: DUP13
000003ce: SWAP1
000003cf: KECCAK256
000003d0: SWAP11
000003d1: MLOAD
000003d2: DUP12
000003d3: SSTORE
000003d4: SWAP7
000003d5: MLOAD
000003d6: PUSH1 0x01
000003d8: DUP12
000003d9: ADD
000003da: SSTORE
000003db: SWAP4
000003dc: MLOAD
000003dd: PUSH1 0x02
000003df: DUP11
000003e0: ADD
000003e1: SSTORE
000003e2: SWAP1
000003e3: MLOAD
000003e4: PUSH1 0x03
000003e6: DUP10
000003e7: ADD
000003e8: SSTORE
000003e9: SWAP2
000003ea: MLOAD
000003eb: SWAP7
000003ec: SWAP1
000003ed: SWAP2
000003ee: ADD
000003ef: SWAP6
000003f0: SWAP1
000003f1: SWAP6
000003f2: SSTORE
000003f3: DUP6
000003f4: MLOAD
000003f5: SWAP1
000003f6: DUP2
000003f7: MSTORE
000003f8: SWAP2
000003f9: DUP3
000003fa: ADD
000003fb: SWAP3
000003fc: SWAP1
000003fd: SWAP3
000003fe: MSTORE
000003ff: DUP1
00000400: DUP5
00000401: ADD
00000402: DUP7
00000403: SWAP1
00000404: MSTORE
00000405: SWAP3
00000406: MLOAD
00000407: SWAP1
00000408: SWAP3
00000409: PUSH32 0x97371a3349bea11f577edf6e64350a3dfb9de665d1154c7e6d08eb0805aa0430
0000042a: SWAP3
0000042b: SWAP1
0000042c: DUP3
0000042d: SWAP1
0000042e: SUB
0000042f: ADD
00000430: SWAP1
00000431: LOG2
00000432: JUMPDEST
00000433: POP
00000434: POP
00000435: JUMP
00000436: JUMPDEST
00000437: GT
00000438: JUMPDEST
00000439: DUP1
0000043a: PUSH2 0x0445
0000043d: JUMPI
0000043e: POP
0000043f: PUSH1 0x00
00000441: DUP1
00000442: SLOAD
00000443: EQ
00000444: ISZERO
00000445: JUMPDEST
00000446: ISZERO
00000447: PUSH2 0x038b
0000044a: JUMPI
0000044b: PUSH1 0x40
0000044d: MLOAD
0000044e: PUSH1 0x01
00000450: PUSH1 0xa0
00000452: PUSH1 0x02
00000454: EXP
00000455: SUB
00000456: CALLER
00000457: AND
00000458: SWAP1
00000459: PUSH1 0x00
0000045b: SWAP1
0000045c: CALLVALUE
0000045d: SWAP1
0000045e: DUP3
0000045f: DUP2
00000460: DUP2
00000461: DUP2
00000462: DUP6
00000463: DUP9
00000464: DUP4
00000465: CALL
00000466: SWAP4
00000467: POP
00000468: POP
00000469: POP
0000046a: POP
0000046b: POP
0000046c: PUSH2 0x0432
0000046f: JUMP
00000470: JUMPDEST
00000471: PUSH2 0x0436
00000474: CALLVALUE
00000475: DUP5
00000476: PUSH2 0x0137
00000479: JUMP
0000047a: JUMPDEST
0000047b: PUSH1 0x01
0000047d: PUSH1 0xa0
0000047f: PUSH1 0x02
00000481: EXP
00000482: SUB
00000483: DUP3
00000484: AND
00000485: PUSH1 0x00
00000487: SWAP1
00000488: DUP2
00000489: MSTORE
0000048a: PUSH1 0x04
0000048c: PUSH1 0x20
0000048e: DUP2
0000048f: SWAP1
00000490: MSTORE
00000491: PUSH1 0x40
00000493: DUP3
00000494: KECCAK256
00000495: ADD
00000496: SLOAD
00000497: EQ
00000498: PUSH2 0x04a0
0000049b: JUMPI
0000049c: PUSH2 0x0432
0000049f: JUMP
000004a0: JUMPDEST
000004a1: PUSH1 0x01
000004a3: PUSH1 0xa0
000004a5: PUSH1 0x02
000004a7: EXP
000004a8: SUB
000004a9: SWAP2
000004aa: SWAP1
000004ab: SWAP2
000004ac: AND
000004ad: PUSH1 0x00
000004af: SWAP1
000004b0: DUP2
000004b1: MSTORE
000004b2: PUSH1 0x04
000004b4: PUSH1 0x20
000004b6: DUP2
000004b7: SWAP1
000004b8: MSTORE
000004b9: PUSH1 0x40
000004bb: SWAP1
000004bc: SWAP2
000004bd: KECCAK256
000004be: ADD
000004bf: SSTORE
000004c0: JUMP
000004c1: JUMPDEST
000004c2: SWAP1
000004c3: POP
000004c4: PUSH2 0x0104
000004c7: JUMP
000004c8: JUMPDEST
000004c9: PUSH1 0x01
000004cb: SWAP2
000004cc: POP
000004cd: JUMPDEST
000004ce: POP
000004cf: SWAP2
000004d0: SWAP1
000004d1: POP
000004d2: JUMP
000004d3: JUMPDEST
000004d4: PUSH1 0x40
000004d6: DUP1
000004d7: MLOAD
000004d8: PUSH1 0x03
000004da: DUP4
000004db: ADD
000004dc: SLOAD
000004dd: DUP6
000004de: DUP3
000004df: MSTORE
000004e0: SWAP2
000004e1: MLOAD
000004e2: SWAP1
000004e3: DUP2
000004e4: SWAP1
000004e5: SUB
000004e6: PUSH1 0x20
000004e8: ADD
000004e9: SWAP1
000004ea: KECCAK256
000004eb: EQ
000004ec: PUSH2 0x04f4
000004ef: JUMPI
000004f0: PUSH2 0x04cd
000004f3: JUMP
000004f4: JUMPDEST
000004f5: PUSH1 0x40
000004f7: DUP1
000004f8: MLOAD
000004f9: PUSH1 0x04
000004fb: DUP4
000004fc: ADD
000004fd: SLOAD
000004fe: DUP6
000004ff: DUP3
00000500: MSTORE
00000501: PUSH1 0x20
00000503: DUP3
00000504: ADD
00000505: MSTORE
00000506: DUP2
00000507: MLOAD
00000508: SWAP1
00000509: DUP2
0000050a: SWAP1
0000050b: SUB
0000050c: SWAP1
0000050d: SWAP2
0000050e: ADD
0000050f: SWAP1
00000510: KECCAK256
00000511: PUSH2 0x0519
00000514: SWAP1
00000515: PUSH2 0x0352
00000518: JUMP
00000519: JUMPDEST
0000051a: SWAP2
0000051b: POP
0000051c: PUSH2 0x04cd
0000051f: JUMP
00000520: JUMPDEST
00000521: PUSH1 0x40
00000523: DUP1
00000524: MLOAD
00000525: PUSH1 0x03
00000527: DUP4
00000528: ADD
00000529: SLOAD
0000052a: DUP6
0000052b: DUP3
0000052c: MSTORE
0000052d: SWAP2
0000052e: MLOAD
0000052f: SWAP1
00000530: DUP2
00000531: SWAP1
00000532: SUB
00000533: PUSH1 0x20
00000535: ADD
00000536: SWAP1
00000537: KECCAK256
00000538: EQ
00000539: PUSH2 0x0541
0000053c: JUMPI
0000053d: PUSH2 0x04cd
00000540: JUMP
00000541: JUMPDEST
00000542: PUSH1 0x40
00000544: DUP1
00000545: MLOAD
00000546: PUSH1 0x01
00000548: DUP4
00000549: ADD
0000054a: SLOAD
0000054b: PUSH1 0x04
0000054d: DUP5
0000054e: ADD
0000054f: SLOAD
00000550: DUP7
00000551: DUP4
00000552: MSTORE
00000553: PUSH1 0x20
00000555: DUP4
00000556: ADD
00000557: MSTORE
00000558: DUP3
00000559: MLOAD
0000055a: SWAP2
0000055b: DUP3
0000055c: SWAP1
0000055d: SUB
0000055e: SWAP1
0000055f: SWAP3
00000560: ADD
00000561: SWAP1
00000562: KECCAK256
00000563: PUSH2 0x056b
00000566: SWAP1
00000567: PUSH2 0x0352
0000056a: JUMP
0000056b: JUMPDEST
0000056c: LT
0000056d: ISZERO
0000056e: PUSH2 0x057a
00000571: JUMPI
00000572: PUSH1 0x01
00000574: SWAP2
00000575: POP
00000576: PUSH2 0x04cd
00000579: JUMP
0000057a: JUMPDEST
0000057b: PUSH1 0x00
0000057d: SWAP2
0000057e: POP
0000057f: PUSH2 0x04cd
00000582: JUMP
00000583: JUMPDEST
00000584: PUSH1 0x40
00000586: DUP1
00000587: MLOAD
00000588: PUSH1 0x03
0000058a: DUP4
0000058b: ADD
0000058c: SLOAD
0000058d: DUP5
0000058e: DUP3
0000058f: MSTORE
00000590: SWAP2
00000591: MLOAD
00000592: SWAP1
00000593: DUP2
00000594: SWAP1
00000595: SUB
00000596: PUSH1 0x20
00000598: ADD
00000599: SWAP1
0000059a: KECCAK256
0000059b: EQ
0000059c: PUSH2 0x05a4
0000059f: JUMPI
000005a0: PUSH2 0x0432
000005a3: JUMP
000005a4: JUMPDEST
000005a5: PUSH1 0x40
000005a7: DUP1
000005a8: MLOAD
000005a9: PUSH1 0x01
000005ab: DUP4
000005ac: ADD
000005ad: SLOAD
000005ae: PUSH1 0x04
000005b0: DUP5
000005b1: ADD
000005b2: SLOAD
000005b3: DUP6
000005b4: DUP4
000005b5: MSTORE
000005b6: PUSH1 0x20
000005b8: DUP4
000005b9: ADD
000005ba: MSTORE
000005bb: DUP3
000005bc: MLOAD
000005bd: SWAP2
000005be: DUP3
000005bf: SWAP1
000005c0: SUB
000005c1: SWAP1
000005c2: SWAP3
000005c3: ADD
000005c4: SWAP1
000005c5: KECCAK256
000005c6: PUSH2 0x05ce
000005c9: SWAP1
000005ca: PUSH2 0x0352
000005cd: JUMP
000005ce: JUMPDEST
000005cf: LT
000005d0: ISZERO
000005d1: PUSH2 0x064b
000005d4: JUMPI
000005d5: DUP1
000005d6: SLOAD
000005d7: PUSH1 0x01
000005d9: DUP3
000005da: ADD
000005db: SLOAD
000005dc: PUSH1 0x01
000005de: PUSH1 0xa0
000005e0: PUSH1 0x02
000005e2: EXP
000005e3: SUB
000005e4: CALLER
000005e5: AND
000005e6: SWAP2
000005e7: PUSH1 0x00
000005e9: SWAP2
000005ea: PUSH2 0x05f3
000005ed: SWAP2
000005ee: SWAP1
000005ef: PUSH2 0x0137
000005f2: JUMP
000005f3: JUMPDEST
000005f4: PUSH1 0x40
000005f6: MLOAD
000005f7: PUSH1 0x00
000005f9: DUP2
000005fa: DUP2
000005fb: DUP2
000005fc: DUP6
000005fd: DUP9
000005fe: DUP9
000005ff: CALL
00000600: POP
00000601: DUP5
00000602: SLOAD
00000603: PUSH1 0x01
00000605: DUP7
00000606: ADD
00000607: SLOAD
00000608: SWAP1
00000609: DUP3
0000060a: MSTORE
0000060b: PUSH1 0x20
0000060d: DUP3
0000060e: ADD
0000060f: MSTORE
00000610: PUSH1 0x40
00000612: DUP1
00000613: MLOAD
00000614: PUSH1 0x01
00000616: PUSH1 0xa0
00000618: PUSH1 0x02
0000061a: EXP
0000061b: SUB
0000061c: CALLER
0000061d: AND
0000061e: SWAP6
0000061f: POP
00000620: PUSH32 0xfdc49939175858b2bb557093a7d52fa6b6f3aad917d282d61758fab4805f102a
00000641: SWAP5
00000642: POP
00000643: SWAP2
00000644: DUP3
00000645: SWAP1
00000646: SUB
00000647: ADD
00000648: SWAP2
00000649: POP
0000064a: LOG2
0000064b: JUMPDEST
0000064c: PUSH1 0x01
0000064e: PUSH1 0xa0
00000650: PUSH1 0x02
00000652: EXP
00000653: SUB
00000654: CALLER
00000655: AND
00000656: PUSH1 0x00
00000658: SWAP1
00000659: DUP2
0000065a: MSTORE
0000065b: PUSH1 0x04
0000065d: PUSH1 0x20
0000065f: DUP2
00000660: SWAP1
00000661: MSTORE
00000662: PUSH1 0x40
00000664: DUP3
00000665: KECCAK256
00000666: DUP3
00000667: DUP2
00000668: SSTORE
00000669: PUSH1 0x01
0000066b: DUP2
0000066c: ADD
0000066d: DUP4
0000066e: SWAP1
0000066f: SSTORE
00000670: PUSH1 0x02
00000672: DUP2
00000673: ADD
00000674: DUP4
00000675: SWAP1
00000676: SSTORE
00000677: PUSH1 0x03
00000679: DUP2
0000067a: ADD
0000067b: DUP4
0000067c: SWAP1
0000067d: SSTORE
0000067e: ADD
0000067f: SSTORE
00000680: POP
00000681: POP
00000682: JUMP
00000683: JUMPDEST
00000684: PUSH1 0x01
00000686: SWAP2
00000687: POP
00000688: JUMPDEST
00000689: POP
0000068a: SWAP1
0000068b: JUMP
0000068c: JUMPDEST
0000068d: DUP1
0000068e: SLOAD
0000068f: PUSH1 0x00
00000691: SWAP1
00000692: GT
00000693: PUSH2 0x069f
00000696: JUMPI
00000697: PUSH1 0x00
00000699: SWAP2
0000069a: POP
0000069b: PUSH2 0x0688
0000069e: JUMP
0000069f: JUMPDEST
000006a0: PUSH1 0x02
000006a2: DUP2
000006a3: ADD
000006a4: SLOAD
000006a5: PUSH1 0x14
000006a7: ADD
000006a8: NUMBER
000006a9: LT
000006aa: ISZERO
000006ab: PUSH2 0x0683
000006ae: JUMPI
000006af: PUSH1 0x00
000006b1: SWAP2
000006b2: POP
000006b3: PUSH2 0x0688
000006b6: JUMP
000006b7: JUMPDEST
000006b8: POP
000006b9: PUSH1 0x01
000006bb: PUSH1 0xa0
000006bd: PUSH1 0x02
000006bf: EXP
000006c0: SUB
000006c1: CALLER
000006c2: AND
000006c3: PUSH1 0x00
000006c5: DUP2
000006c6: DUP2
000006c7: MSTORE
000006c8: PUSH1 0x04
000006ca: PUSH1 0x20
000006cc: MSTORE
000006cd: PUSH1 0x40
000006cf: DUP1
000006d0: DUP3
000006d1: KECCAK256
000006d2: DUP1
000006d3: SLOAD
000006d4: SWAP2
000006d5: MLOAD
000006d6: SWAP1
000006d7: SWAP4
000006d8: SWAP3
000006d9: SWAP2
000006da: SWAP1
000006db: DUP3
000006dc: DUP2
000006dd: DUP2
000006de: DUP2
000006df: DUP6
000006e0: DUP9
000006e1: DUP4
000006e2: CALL
000006e3: POP
000006e4: POP
000006e5: POP
000006e6: SWAP1
000006e7: DUP2
000006e8: MSTORE
000006e9: PUSH1 0x04
000006eb: PUSH1 0x20
000006ed: DUP2
000006ee: SWAP1
000006ef: MSTORE
000006f0: DUP2
000006f1: DUP4
000006f2: SSTORE
000006f3: PUSH1 0x01
000006f5: DUP4
000006f6: ADD
000006f7: DUP3
000006f8: SWAP1
000006f9: SSTORE
000006fa: PUSH1 0x02
000006fc: DUP4
000006fd: ADD
000006fe: DUP3
000006ff: SWAP1
00000700: SSTORE
00000701: PUSH1 0x03
00000703: DUP4
00000704: ADD
00000705: DUP3
00000706: SWAP1
00000707: SSTORE
00000708: DUP3
00000709: ADD
0000070a: SSTORE
0000070b: JUMPDEST
0000070c: POP
0000070d: JUMP
0000070e: JUMPDEST
0000070f: ISZERO
00000710: ISZERO
00000711: PUSH2 0x06b7
00000714: JUMPI
00000715: PUSH2 0x070b
00000718: JUMP
00000719: JUMPDEST
0000071a: PUSH1 0x03
0000071c: SSTORE
0000071d: JUMP
0000071e: JUMPDEST
0000071f: PUSH1 0x02
00000721: DUP1
00000722: SLOAD
00000723: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000738: NOT
00000739: AND
0000073a: DUP3
0000073b: OR
0000073c: SWAP1
0000073d: SSTORE
0000073e: POP
0000073f: JUMP
00000740: JUMPDEST
00000741: PUSH1 0x00
00000743: DUP1
00000744: SLOAD
00000745: EQ
00000746: DUP1
00000747: PUSH2 0x0755
0000074a: JUMPI
0000074b: POP
0000074c: PUSH1 0x00
0000074e: SLOAD
0000074f: PUSH2 0x1680
00000752: ADD
00000753: NUMBER
00000754: LT
00000755: JUMPDEST
00000756: ISZERO
00000757: PUSH2 0x075f
0000075a: JUMPI
0000075b: PUSH2 0x070b
0000075e: JUMP
0000075f: JUMPDEST
00000760: PUSH1 0x01
00000762: SLOAD
00000763: PUSH1 0x40
00000765: MLOAD
00000766: PUSH1 0x01
00000768: PUSH1 0xa0
0000076a: PUSH1 0x02
0000076c: EXP
0000076d: SUB
0000076e: SWAP2
0000076f: SWAP1
00000770: SWAP2
00000771: AND
00000772: SWAP1
00000773: PUSH1 0x00
00000775: SWAP1
00000776: DUP4
00000777: SWAP1
00000778: DUP3
00000779: DUP2
0000077a: DUP2
0000077b: DUP2
0000077c: DUP6
0000077d: DUP9
0000077e: DUP4
0000077f: CALL
00000780: POP
00000781: POP
00000782: POP
00000783: POP
00000784: POP
00000785: POP
00000786: JUMP