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Analysis Run

2e1b298d-cfa2-44f8-a51e-77c122c3af39

complete
Chain ID
1
Address
0xdd85fd9b66996b84b31fc5a31598a242fcb6425b
Block Number
—
Created
Mon, Jan 5, 2026 3:37 AM
Review Summary

What survived the funnel

Open this run to answer one question: is this real attacker-relevant behavior with real impact, or just normal contract plumbing?

back to vulns open contract
Confirmed
0
Validated
0
Source
Bytecode only
Review Backing
Not yet
Best current signal
SELFDESTRUCT present
crit 0 high 0 direct contract
Review Checklist
1. Read the findings table first. Ignore raw jobs until the result looks real.
2. Confirm attacker control, not just the existence of a sink.
3. Confirm money or privilege impact.
4. Keep it if the behavior is real. Kill it if this is normal proxy, admin, or upgrade plumbing.

Processing Jobs

Status & attempts
ID Type Status Attempts Heartbeat
31675 report.consolidate complete 1 / 1 3 months ago
95473 artifact.fetch complete 1 / 3 1 week ago
95474 tool.cast_disasm complete 1 / 3 1 week ago
95475 analysis.bundle complete 1 / 3 1 week ago
95476 capability.graph complete 1 / 3 1 week ago
95477 detector.run complete 1 / 3 1 week ago
95478 validation.fork complete 1 / 3 1 week ago

Artifact

Runtime bytecode: available
Creation TX: —
Deployer: —
Proxy: no
Implementation:
—
Verified Source: no

Slither

tool.slither

No slither job recorded yet.

Codex

report.consolidate
Job Status
complete
Attempts
1 / 1
Findings
0
No findings?
yes
Summary
No concrete, exploitable value-extraction path identified from the bytecode. The only callable entry points either do nothing (deposit selector) or gate external value transfers behind an owner check; no controllable CALL/DELEGATECALL/SELFDESTRUCT paths for an unprivileged caller were found.
View stderr 
[codex:446756] OpenAI Codex v0.77.0 (research preview)
[codex:446756] --------
[codex:446756] workdir: /tmp/codex-multi-th7p2h2f
[codex:446756] model: gpt-5.2-codex
[codex:446756] provider: openai
[codex:446756] approval: never
[codex:446756] sandbox: read-only
[codex:446756] reasoning effort: xhigh
[codex:446756] reasoning summaries: auto
[codex:446756] session id: 019b8c2e-08cb-7d33-910a-9793a770f427
[codex:446756] --------
[codex:446756] user
[codex:446756] 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:446756] 
[codex:446756] Read `BYTECODE_BUNDLE.txt` completely before concluding.
[codex:446756] 
[codex:446756] ONLY REPORT if you find a CONCRETE, EXPLOITABLE path to profit. We do NOT care about:
[codex:446756] - Gas inefficiency, code quality, or best practices
[codex:446756] - Theoretical vulnerabilities without a clear extraction path
[codex:446756] - Generic footguns (unchecked return values, etc.) unless they enable theft
[codex:446756] - Issues requiring social engineering or off-chain coordination
[codex:446756] 
[codex:446756] PATTERNS WORTH INVESTIGATING in bytecode:
[codex:446756] - CALL/DELEGATECALL with controllable destination or calldata
[codex:446756] - Value transfers (CALL with non-zero value) without prior CALLER/ORIGIN checks
[codex:446756] - SSTORE to low slots (0-10) that might be owner/admin storage
[codex:446756] - ecrecover (signature validation) - look for missing nonce/replay protection
[codex:446756] - External calls before state updates (reentrancy)
[codex:446756] - SELFDESTRUCT with controllable beneficiary
[codex:446756] - Proxy patterns (DELEGATECALL to storage slot) with unprotected upgrade paths
[codex:446756] 
[codex:446756] For each finding, you MUST explain:
[codex:446756] 1. The specific bytecode pattern/offsets that indicate the vulnerability
[codex:446756] 2. The concrete sequence of transactions to extract value
[codex:446756] 3. Why you believe this is exploitable (not just suspicious)
[codex:446756] 
[codex:446756] If you cannot identify a concrete profit path from bytecode alone: set no_findings=true.
[codex:446756] Do NOT hallucinate. Bytecode-only analysis is limited - be honest about uncertainty.
[codex:446756] 
[codex:446756] Output MUST be valid JSON matching the provided schema.
[codex:446756] - severity: info, low, medium, high, critical (use high/critical ONLY for clear extraction paths)
[codex:446756] - category: access_control, reentrancy, math, oracle, upgradeability, auth, other
[codex:446756] mcp startup: no servers
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Reading BYTECODE_BUNDLE.txt**
[codex:446756] exec
[codex:446756] /bin/bash -lc ls in /tmp/codex-multi-th7p2h2f succeeded in 5ms:
[codex:446756] BYTECODE_BUNDLE.txt
[codex:446756] codex-output-schema.json
[codex:446756] exec
[codex:446756] /bin/bash -lc 'cat BYTECODE_BUNDLE.txt' in /tmp/codex-multi-th7p2h2f succeeded in 5ms:
[codex:446756] Runtime bytecode bundle for best-effort auditing.
[codex:446756] Note: without verified source, conclusions are low-confidence unless a concrete pattern is visible.
[codex:446756] 
[codex:446756] FILE: runtime_bytecode.hex
[codex:446756] 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
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Decoding bytecode functions**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] hexstr = \"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\"
[codex:446756] code = bytes.fromhex(hexstr)
[codex:446756] 
[codex:446756] # simple disasm
[codex:446756] opnames = {
[codex:446756]     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:446756]     0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756]     0x20:'SHA3',
[codex:446756]     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:446756]     0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756]     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:446756]     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:446756]     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:446756]     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:446756]     0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756]     0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:446756] }
[codex:446756] 
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     name = opnames.get(op, 'OP'+hex(op))
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n = op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         print(f\"{pc:04x}: {name} 0x{data.hex()}\")
[codex:446756]         pc += 1+n
[codex:446756]     else:
[codex:446756]         print(f\"{pc:04x}: {name}\")
[codex:446756]         pc += 1
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 30ms:
[codex:446756] 0000: PUSH1 0x80
[codex:446756] 0002: PUSH1 0x40
[codex:446756] 0004: MSTORE
[codex:446756] 0005: PUSH1 0x04
[codex:446756] 0007: CALLDATASIZE
[codex:446756] 0008: LT
[codex:446756] 0009: PUSH2 0x0057
[codex:446756] 000c: JUMPI
[codex:446756] 000d: PUSH1 0x00
[codex:446756] 000f: CALLDATALOAD
[codex:446756] 0010: PUSH29 0x0100000000000000000000000000000000000000000000000000000000
[codex:446756] 002e: SWAP1
[codex:446756] 002f: DIV
[codex:446756] 0030: PUSH4 0xffffffff
[codex:446756] 0035: AND
[codex:446756] 0036: DUP1
[codex:446756] 0037: PUSH4 0x2e1a7d4d
[codex:446756] 003c: EQ
[codex:446756] 003d: PUSH2 0x005c
[codex:446756] 0040: JUMPI
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Analyzing EVM function control flow and stack**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] ops = []
[codex:446756] # parse ops with pc mapping
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n=op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         ops.append((pc, op, data))
[codex:446756]         pc += 1+n
[codex:446756]     else:
[codex:446756]         ops.append((pc, op, None))
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] # mapping
[codex:446756] opnames = {
[codex:446756] 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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',
[codex:446756] 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:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:446756] }
[codex:446756] 
[codex:446756] # trace from 0x0120 to 0x01e5
[codex:446756] start=0x0120
[codex:446756] end=0x01e5
[codex:446756] 
[codex:446756] # build mapping pc->(op,data)
[codex:446756] opmap = {pc:(op,data) for pc,op,data in ops}
[codex:446756] 
[codex:446756] stack = ['amount']
[codex:446756] 
[codex:446756] def push(val):
[codex:446756]     stack.append(val)
[codex:446756] 
[codex:446756] def pop():
[codex:446756]     return stack.pop() if stack else 'EMPTY'
[codex:446756] 
[codex:446756] pc=start
[codex:446756] # simple linear trace ignoring jumps (not needed) until end
[codex:446756] while pc <= end:
[codex:446756]     if pc not in opmap:
[codex:446756]         print('no op at', hex(pc)); break
[codex:446756]     op,data = opmap[pc]
[codex:446756]     name = opnames.get(op, hex(op))
[codex:446756]     before = stack.copy()
[codex:446756]     # handle push
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         val = '0x'+data.hex()
[codex:446756]         push(val)
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n = op-0x7f
[codex:446756]         if len(stack) >= n:
[codex:446756]             push(stack[-n])
[codex:446756]         else:
[codex:446756]             push('EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n = op-0x8f
[codex:446756]         if len(stack) > n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='SLOAD':
[codex:446756]         key = pop(); push(f'sload({key})')
[codex:446756]     elif name=='CALLER':
[codex:446756]         push('caller')
[codex:446756]     elif name=='CALLVALUE':
[codex:446756]         push('callvalue')
[codex:446756]     elif name=='CALLDATALOAD':
[codex:446756]         off = pop(); push(f'calldataload({off})')
[codex:446756]     elif name in ('EXP','DIV','AND','EQ','MUL','ISZERO','SUB','ADD'):
[codex:446756]         b = pop(); a = pop(); push(f'{name.lower()}({a},{b})')
[codex:446756]     elif name=='MLOAD':
[codex:446756]         a=pop(); push(f'mload({a})')
[codex:446756]     elif name=='MSTORE':
[codex:446756]         a=pop(); b=pop();
[codex:446756]     elif name=='CALL':
[codex:446756]         # call pops 7 args: gas, to, value, in_offset, in_size, out_offset, out_size
[codex:446756]         out_size = pop(); out_offset = pop(); in_size = pop(); in_offset = pop(); value = pop(); to = pop(); gas = pop();
[codex:446756]         push(f'call({gas},{to},{value})')
[codex:446756]     elif name=='RETURNDATASIZE':
[codex:446756]         push('returndatasize')
[codex:446756]     elif name=='RETURNDATACOPY':
[codex:446756]         a=pop(); b=pop(); c=pop()
[codex:446756]     elif name=='JUMP' or name=='JUMPI' or name=='REVERT' or name=='STOP':
[codex:446756]         pass
[codex:446756]     elif name=='LOG1':
[codex:446756]         pass
[codex:446756]     else:
[codex:446756]         # default: treat as pop for unknown? just ignore
[codex:446756]         pass
[codex:446756] 
[codex:446756]     after = stack.copy()
[codex:446756]     if pc >= start and pc <= end:
[codex:446756]         print(f\"{pc:04x} {name:10} stack: {before} -> {after}\")
[codex:446756] 
[codex:446756]     # increment pc
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         pc += 1 + (op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 20ms:
[codex:446756] 0120 JUMPDEST   stack: ['amount'] -> ['amount']
[codex:446756] 0121 PUSH1      stack: ['amount'] -> ['amount', '0x00']
[codex:446756] 0123 DUP1       stack: ['amount', '0x00'] -> ['amount', '0x00', '0x00']
[codex:446756] 0124 SWAP1      stack: ['amount', '0x00', '0x00'] -> ['amount', '0x00', '0x00']
[codex:446756] 0125 SLOAD      stack: ['amount', '0x00', '0x00'] -> ['amount', '0x00', 'sload(0x00)']
[codex:446756] 0126 SWAP1      stack: ['amount', '0x00', 'sload(0x00)'] -> ['amount', 'sload(0x00)', '0x00']
[codex:446756] 0127 PUSH2      stack: ['amount', 'sload(0x00)', '0x00'] -> ['amount', 'sload(0x00)', '0x00', '0x0100']
[codex:446756] 012a EXP        stack: ['amount', 'sload(0x00)', '0x00', '0x0100'] -> ['amount', 'sload(0x00)', 'exp(0x00,0x0100)']
[codex:446756] 012b SWAP1      stack: ['amount', 'sload(0x00)', 'exp(0x00,0x0100)'] -> ['amount', 'exp(0x00,0x0100)', 'sload(0x00)']
[codex:446756] 012c DIV        stack: ['amount', 'exp(0x00,0x0100)', 'sload(0x00)'] -> ['amount', 'div(exp(0x00,0x0100),sload(0x00))']
[codex:446756] 012d PUSH20     stack: ['amount', 'div(exp(0x00,0x0100),sload(0x00))'] -> ['amount', 'div(exp(0x00,0x0100),sload(0x00))', '0xffffffffffffffffffffffffffffffffffffffff']
[codex:446756] 0142 AND        stack: ['amount', 'div(exp(0x00,0x0100),sload(0x00))', '0xffffffffffffffffffffffffffffffffffffffff'] -> ['amount', 'and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff)']
[codex:446756] 0143 PUSH20     stack: ['amount', 'and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff)'] -> ['amount', 'and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff)', '0xffffffffffffffffffffffffffffffffffffffff']
[codex:446756] 0158 AND        stack: ['amount', 'and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff)', '0xffffffffffffffffffffffffffffffffffffffff'] -> ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)']
[codex:446756] 0159 CALLER     stack: ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)'] -> ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'caller']
[codex:446756] 015a PUSH20     stack: ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'caller'] -> ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'caller', '0xffffffffffffffffffffffffffffffffffffffff']
[codex:446756] 016f AND        stack: ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'caller', '0xffffffffffffffffffffffffffffffffffffffff'] -> ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'and(caller,0xffffffffffffffffffffffffffffffffffffffff)']
[codex:446756] 0170 EQ         stack: ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'and(caller,0xffffffffffffffffffffffffffffffffffffffff)'] -> ['amount', 'eq(and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff),and(caller,0xffffffffffffffffffffffffffffffffffffffff))']
[codex:446756] 0171 ISZERO     stack: ['amount', 'eq(and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff),and(caller,0xffffffffffffffffffffffffffffffffffffffff))'] -> ['iszero(amount,eq(and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff),and(caller,0xffffffffffffffffffffffffffffffffffffffff)))']
[codex:446756] 0172 ISZERO     stack: ['iszero(amount,eq(and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff),and(caller,0xffffffffffffffffffffffffffffffffffffffff)))'] -> ['iszero(EMPTY,iszero(amount,eq(and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff),and(caller,0xffffffffffffffffffffffffffffffffffffffff))))']
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Improving symbolic EVM stack simulation**
[codex:446756] 
[codex:446756] I'm tackling the messy trace by fixing the symbolic EVM simulation to properly handle stack changes for conditional jumps like JUMPI, which I previously ignored. I plan to simulate the execution path from 0x0120 through to the call, maintaining symbolic stack states and accurately modeling each opcode's stack effect, so I can pinpoint how the call arguments—especially the amount—are set up before the CALL instruction. This focused simulation should clarify the call’s input values.
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] # Build opmap
[codex:446756] opmap = {}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n = op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         opmap[pc] = (op, data)
[codex:446756]         pc += 1+n
[codex:446756]     else:
[codex:446756]         opmap[pc] = (op, None)
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] opnames = {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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',
[codex:446756] 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:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] stack = ['amount']
[codex:446756] 
[codex:446756] visited = set()
[codex:446756] 
[codex:446756] pc = 0x0120
[codex:446756] 
[codex:446756] # simulate until call at 0x01cc
[codex:446756] for step in range(500):
[codex:446756]     if pc in visited:
[codex:446756]         print('loop at', hex(pc)); break
[codex:446756]     visited.add(pc)
[codex:446756]     op, data = opmap[pc]
[codex:446756]     name = opnames.get(op, hex(op))
[codex:446756]     def pop():
[codex:446756]         return stack.pop() if stack else 'EMPTY'
[codex:446756]     def push(x):
[codex:446756]         stack.append(x)
[codex:446756]     before = stack.copy()
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n = op-0x7f
[codex:446756]         push(stack[-n] if len(stack) >= n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n = op-0x8f
[codex:446756]         if len(stack) > n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='SLOAD':
[codex:446756]         key = pop(); push(f'sload({key})')
[codex:446756]     elif name=='CALLER':
[codex:446756]         push('caller')
[codex:446756]     elif name=='CALLVALUE':
[codex:446756]         push('callvalue')
[codex:446756]     elif name=='CALLDATALOAD':
[codex:446756]         off = pop(); push(f'calldataload({off})')
[codex:446756]     elif name in ('EXP','DIV','AND','EQ','MUL','ISZERO','SUB','ADD'):
[codex:446756]         b = pop(); a = pop(); push(f'{name.lower()}({a},{b})')
[codex:446756]     elif name=='MLOAD':
[codex:446756]         a=pop(); push(f'mload({a})')
[codex:446756]     elif name=='MSTORE':
[codex:446756]         a=pop(); b=pop()
[codex:446756]     elif name=='CALL':
[codex:446756]         out_size = pop(); out_offset = pop(); in_size = pop(); in_offset = pop(); value = pop(); to = pop(); gas = pop();
[codex:446756]         push(f'call(gas={gas},to={to},value={value})')
[codex:446756]     elif name=='RETURNDATASIZE':
[codex:446756]         push('returndatasize')
[codex:446756]     elif name=='RETURNDATACOPY':
[codex:446756]         a=pop(); b=pop(); c=pop()
[codex:446756]     elif name=='JUMPI':
[codex:446756]         dest = pop(); cond = pop();
[codex:446756]         # follow the true path always
[codex:446756]         pc = int(dest,16) if dest.startswith('0x') else 0
[codex:446756]         print(f\"{pc:04x} {name} cond {cond} -> jump\")
[codex:446756]         continue
[codex:446756]     elif name=='JUMP':
[codex:446756]         dest = pop();
[codex:446756]         pc = int(dest,16) if dest.startswith('0x') else 0
[codex:446756]         print(f\"{pc:04x} {name} -> jump\")
[codex:446756]         continue
[codex:446756]     elif name in ('STOP','REVERT'):
[codex:446756]         print(f\"stop at {hex(pc)}\")
[codex:446756]         break
[codex:446756]     # print some relevant info
[codex:446756]     if pc in (0x017b,0x01b4,0x01cc):
[codex:446756]         print(f\"pc {pc:04x} {name} stack {before} -> {stack}\")
[codex:446756]     if pc == 0x01cc:
[codex:446756]         print('CALL executed with stack', stack)
[codex:446756]         break
[codex:446756]     # advance pc
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         pc += 1 + (op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 20ms:
[codex:446756] 017b JUMPI cond iszero(EMPTY,iszero(amount,eq(and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff),and(caller,0xffffffffffffffffffffffffffffffffffffffff)))) -> jump
[codex:446756] pc 017b JUMPDEST stack [] -> []
[codex:446756] pc 01b4 PUSH2 stack ['and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)'] -> ['and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', '0x08fc']
[codex:446756] pc 01cc CALL stack ['mul(EMPTY,iszero(0x08fc,EMPTY))', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'mload(0x40)', '0x00', 'mload(0x40)', 'sub(mload(0x40),mload(0x40))', 'mload(0x40)', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'EMPTY', 'mul(EMPTY,iszero(0x08fc,EMPTY))'] -> ['mul(EMPTY,iszero(0x08fc,EMPTY))', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'mload(0x40)', 'call(gas=0x00,to=mload(0x40),value=sub(mload(0x40),mload(0x40)))']
[codex:446756] CALL executed with stack ['mul(EMPTY,iszero(0x08fc,EMPTY))', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'mload(0x40)', 'call(gas=0x00,to=mload(0x40),value=sub(mload(0x40),mload(0x40)))']
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Correcting opcode semantics and stack handling**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] # Build opmap
[codex:446756] opmap = {}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n = op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         opmap[pc] = (op, data)
[codex:446756]         pc += 1+n
[codex:446756]     else:
[codex:446756]         opmap[pc] = (op, None)
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] opnames = {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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',
[codex:446756] 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:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] stack = ['amount']
[codex:446756] 
[codex:446756] pc = 0x0120
[codex:446756] visited = set()
[codex:446756] 
[codex:446756] def pop():
[codex:446756]     return stack.pop() if stack else 'EMPTY'
[codex:446756] 
[codex:446756] def push(x):
[codex:446756]     stack.append(x)
[codex:446756] 
[codex:446756] while True:
[codex:446756]     if pc in visited:
[codex:446756]         print('loop at', hex(pc)); break
[codex:446756]     visited.add(pc)
[codex:446756]     op, data = opmap[pc]
[codex:446756]     name = opnames.get(op, hex(op))
[codex:446756]     # print current op
[codex:446756]     # handle
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n = op-0x7f
[codex:446756]         push(stack[-n] if len(stack) >= n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n = op-0x8f
[codex:446756]         if len(stack) > n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='SLOAD':
[codex:446756]         key = pop(); push(f'sload({key})')
[codex:446756]     elif name=='CALLER':
[codex:446756]         push('caller')
[codex:446756]     elif name=='CALLVALUE':
[codex:446756]         push('callvalue')
[codex:446756]     elif name=='CALLDATALOAD':
[codex:446756]         off = pop(); push(f'calldataload({off})')
[codex:446756]     elif name in ('EXP','DIV','AND','EQ','MUL','SUB','ADD'):
[codex:446756]         b = pop(); a = pop(); push(f'{name.lower()}({a},{b})')
[codex:446756]     elif name=='ISZERO':
[codex:446756]         a = pop(); push(f'iszero({a})')
[codex:446756]     elif name=='MLOAD':
[codex:446756]         a=pop(); push(f'mload({a})')
[codex:446756]     elif name=='MSTORE':
[codex:446756]         a=pop(); b=pop()
[codex:446756]     elif name=='CALL':
[codex:446756]         out_size = pop(); out_offset = pop(); in_size = pop(); in_offset = pop(); value = pop(); to = pop(); gas = pop();
[codex:446756]         push(f'call(gas={gas},to={to},value={value})')
[codex:446756]     elif name=='RETURNDATASIZE':
[codex:446756]         push('returndatasize')
[codex:446756]     elif name=='RETURNDATACOPY':
[codex:446756]         a=pop(); b=pop(); c=pop()
[codex:446756]     elif name=='JUMPI':
[codex:446756]         dest = pop(); cond = pop();
[codex:446756]         # assume condition true (owner check passes)
[codex:446756]         pc = int(dest,16)
[codex:446756]         print(f\"JUMPI to {hex(pc)} with cond {cond}\")
[codex:446756]         continue
[codex:446756]     elif name=='JUMP':
[codex:446756]         dest = pop();
[codex:446756]         pc = int(dest,16)
[codex:446756]         print(f\"JUMP to {hex(pc)}\")
[codex:446756]         continue
[codex:446756]     elif name in ('STOP','REVERT'):
[codex:446756]         print(f\"{name} at {hex(pc)} stack {stack}\")
[codex:446756]         break
[codex:446756] 
[codex:446756]     if pc in (0x017b,0x01b4,0x01cc):
[codex:446756]         print(f\"pc {pc:04x} {name} stack {stack}\")
[codex:446756]     if pc == 0x01cc:
[codex:446756]         print('CALL executed stack', stack)
[codex:446756]         break
[codex:446756] 
[codex:446756]     # advance
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         pc += 1 + (op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 26ms:
[codex:446756] JUMPI to 0x17b with cond iszero(iszero(eq(and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff),and(caller,0xffffffffffffffffffffffffffffffffffffffff))))
[codex:446756] pc 017b JUMPDEST stack ['amount']
[codex:446756] pc 01b4 PUSH2 stack ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', '0x08fc']
[codex:446756] pc 01cc CALL stack ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'mul(0x08fc,iszero(amount))', 'amount', 'mload(0x40)', 'call(gas=0x00,to=mload(0x40),value=sub(mload(0x40),mload(0x40)))']
[codex:446756] CALL executed stack ['amount', 'and(and(div(exp(0x00,0x0100),sload(0x00)),0xffffffffffffffffffffffffffffffffffffffff),0xffffffffffffffffffffffffffffffffffffffff)', 'mul(0x08fc,iszero(amount))', 'amount', 'mload(0x40)', 'call(gas=0x00,to=mload(0x40),value=sub(mload(0x40),mload(0x40)))']
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Analyzing EVM call argument stack**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] # Build opmap
[codex:446756] opmap = {}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n = op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         opmap[pc] = (op, data)
[codex:446756]         pc += 1+n
[codex:446756]     else:
[codex:446756]         opmap[pc] = (op, None)
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] opnames = {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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',
[codex:446756] 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:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] counter = {}
[codex:446756] 
[codex:446756] def new(name):
[codex:446756]     counter[name] = counter.get(name, 0) + 1
[codex:446756]     return f\"{name}{counter[name]}\"
[codex:446756] 
[codex:446756] stack = ['amount']
[codex:446756] 
[codex:446756] pc = 0x017b  # start after require
[codex:446756] # But we need to simulate from 0x017b including load owner (0x017c..0x01b3)
[codex:446756] 
[codex:446756] visited = set()
[codex:446756] 
[codex:446756] while True:
[codex:446756]     op, data = opmap[pc]
[codex:446756]     name = opnames.get(op, hex(op))
[codex:446756] 
[codex:446756]     def pop():
[codex:446756]         return stack.pop() if stack else 'EMPTY'
[codex:446756]     def push(x):
[codex:446756]         stack.append(x)
[codex:446756] 
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n = op-0x7f
[codex:446756]         push(stack[-n] if len(stack) >= n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n = op-0x8f
[codex:446756]         if len(stack) > n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='SLOAD':
[codex:446756]         key = pop(); push(new('sload'))
[codex:446756]     elif name=='CALLER':
[codex:446756]         push('caller')
[codex:446756]     elif name=='CALLVALUE':
[codex:446756]         push('callvalue')
[codex:446756]     elif name=='CALLDATALOAD':
[codex:446756]         off = pop(); push(new('calldata'))
[codex:446756]     elif name in ('EXP','DIV','AND','EQ','MUL','SUB','ADD'):
[codex:446756]         b = pop(); a = pop(); push(new(name.lower()))
[codex:446756]     elif name=='ISZERO':
[codex:446756]         a = pop(); push(new('iszero'))
[codex:446756]     elif name=='MLOAD':
[codex:446756]         a=pop(); push(new('mload'))
[codex:446756]     elif name=='MSTORE':
[codex:446756]         a=pop(); b=pop()
[codex:446756]     elif name=='CALL':
[codex:446756]         out_size = pop(); out_offset = pop(); in_size = pop(); in_offset = pop(); value = pop(); to = pop(); gas = pop();
[codex:446756]         print('CALL args:')
[codex:446756]         print('  gas:', gas)
[codex:446756]         print('  to:', to)
[codex:446756]         print('  value:', value)
[codex:446756]         print('  in_offset:', in_offset)
[codex:446756]         print('  in_size:', in_size)
[codex:446756]         print('  out_offset:', out_offset)
[codex:446756]         print('  out_size:', out_size)
[codex:446756]         break
[codex:446756]     elif name=='JUMPDEST':
[codex:446756]         pass
[codex:446756]     else:
[codex:446756]         # ignore others
[codex:446756]         pass
[codex:446756] 
[codex:446756]     if pc in (0x017b,0x019d,0x01b4,0x01cc):
[codex:446756]         print(f\"pc {pc:04x} {name} stack: {stack}\")
[codex:446756] 
[codex:446756]     if pc == 0x01cc:
[codex:446756]         break
[codex:446756] 
[codex:446756]     # advance
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         pc += 1 + (op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756]     if pc > 0x01cc:
[codex:446756]         break
[codex:446756] 
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 20ms:
[codex:446756] pc 017b JUMPDEST stack: ['amount']
[codex:446756] pc 019d AND stack: ['amount', 'and1']
[codex:446756] pc 01b4 PUSH2 stack: ['amount', 'and2', '0x08fc']
[codex:446756] CALL args:
[codex:446756]   gas: 0x00
[codex:446756]   to: mload2
[codex:446756]   value: sub1
[codex:446756]   in_offset: mload2
[codex:446756]   in_size: amount
[codex:446756]   out_offset: and2
[codex:446756]   out_size: mul1
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Analyzing stack setup and call dispatch**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] # build opmap
[codex:446756] opmap = {}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n = op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         opmap[pc]=(op,data)
[codex:446756]         pc+=1+n
[codex:446756]     else:
[codex:446756]         opmap[pc]=(op,None)
[codex:446756]         pc+=1
[codex:446756] 
[codex:446756] opnames = {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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',
[codex:446756] 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:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] stack=[]
[codex:446756] pc=0x006a
[codex:446756] 
[codex:446756] # simulate until jump to 0x0120
[codex:446756] while True:
[codex:446756]     op,data = opmap[pc]
[codex:446756]     name = opnames.get(op, hex(op))
[codex:446756]     def pop():
[codex:446756]         return stack.pop() if stack else 'EMPTY'
[codex:446756]     def push(x):
[codex:446756]         stack.append(x)
[codex:446756] 
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n=op-0x7f
[codex:446756]         push(stack[-n] if len(stack)>=n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n=op-0x8f
[codex:446756]         if len(stack)>n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='CALLDATASIZE':
[codex:446756]         push('calldatasize')
[codex:446756]     elif name=='CALLDATALOAD':
[codex:446756]         off=pop(); push(f'calldataload({off})')
[codex:446756]     elif name=='ADD':
[codex:446756]         b=pop(); a=pop(); push(f'add({a},{b})')
[codex:446756]     elif name=='SUB':
[codex:446756]         b=pop(); a=pop(); push(f'sub({a},{b})')
[codex:446756]     elif name=='JUMP':
[codex:446756]         dest=pop();
[codex:446756]         print('JUMP to', dest)
[codex:446756]         break
[codex:446756]     elif name=='CALLVALUE':
[codex:446756]         push('callvalue')
[codex:446756]     elif name=='ISZERO':
[codex:446756]         a=pop(); push(f'iszero({a})')
[codex:446756]     elif name=='MLOAD':
[codex:446756]         a=pop(); push(f'mload({a})')
[codex:446756]     elif name=='MSTORE':
[codex:446756]         a=pop(); b=pop()
[codex:446756]     elif name=='SWAP1' or name=='SWAP2' or name=='SWAP3':
[codex:446756]         pass
[codex:446756]     
[codex:446756]     # print for debug
[codex:446756]     # print(f\"{pc:04x} {name} stack {stack}\")
[codex:446756] 
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         pc += 1 + (op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] print('stack at function entry (top last):', stack)
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 18ms:
[codex:446756] JUMP to 0x0120
[codex:446756] stack at function entry (top last): ['0x0087', 'calldataload(0x04)']
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Reanalyzing stack setup for call arguments**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] # Build opmap
[codex:446756] opmap = {}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n = op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         opmap[pc] = (op, data)
[codex:446756]         pc += 1+n
[codex:446756]     else:
[codex:446756]         opmap[pc] = (op, None)
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] opnames = {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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',
[codex:446756] 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:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] counter={}
[codex:446756] 
[codex:446756] def new(name):
[codex:446756]     counter[name]=counter.get(name,0)+1
[codex:446756]     return f\"{name}{counter[name]}\"
[codex:446756] 
[codex:446756] # initial stack at 0x017b (after require): return address + amount
[codex:446756] stack=['retaddr','amount']
[codex:446756] 
[codex:446756] pc=0x017b
[codex:446756] 
[codex:446756] while True:
[codex:446756]     op,data = opmap[pc]
[codex:446756]     name = opnames.get(op, hex(op))
[codex:446756]     def pop():
[codex:446756]         return stack.pop() if stack else 'EMPTY'
[codex:446756]     def push(x):
[codex:446756]         stack.append(x)
[codex:446756] 
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n=op-0x7f
[codex:446756]         push(stack[-n] if len(stack)>=n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n=op-0x8f
[codex:446756]         if len(stack)>n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='SLOAD':
[codex:446756]         pop(); push(new('sload'))
[codex:446756]     elif name=='CALLER':
[codex:446756]         push('caller')
[codex:446756]     elif name in ('EXP','DIV','AND','EQ','MUL','SUB','ADD'):
[codex:446756]         pop(); pop(); push(new(name.lower()))
[codex:446756]     elif name=='ISZERO':
[codex:446756]         pop(); push(new('iszero'))
[codex:446756]     elif name=='MLOAD':
[codex:446756]         pop(); push(new('mload'))
[codex:446756]     elif name=='MSTORE':
[codex:446756]         pop(); pop()
[codex:446756]     elif name=='CALL':
[codex:446756]         out_size = pop(); out_offset=pop(); in_size=pop(); in_offset=pop(); value=pop(); to=pop(); gas=pop();
[codex:446756]         print('CALL args:')
[codex:446756]         print(' gas', gas)
[codex:446756]         print(' to', to)
[codex:446756]         print(' value', value)
[codex:446756]         print(' in_offset', in_offset)
[codex:446756]         print(' in_size', in_size)
[codex:446756]         print(' out_offset', out_offset)
[codex:446756]         print(' out_size', out_size)
[codex:446756]         break
[codex:446756]     elif name=='JUMPDEST':
[codex:446756]         pass
[codex:446756]     # else ignore
[codex:446756] 
[codex:446756]     if pc in (0x017b,0x01b4,0x01cc):
[codex:446756]         print(f\"pc {pc:04x} {name} stack: {stack}\")
[codex:446756] 
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         pc += 1 + (op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756]     if pc > 0x01cc:
[codex:446756]         break
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 18ms:
[codex:446756] pc 017b JUMPDEST stack: ['retaddr', 'amount']
[codex:446756] pc 01b4 PUSH2 stack: ['retaddr', 'amount', 'and2', '0x08fc']
[codex:446756] CALL args:
[codex:446756]  gas 0x00
[codex:446756]  to mload2
[codex:446756]  value sub1
[codex:446756]  in_offset mload2
[codex:446756]  in_size amount
[codex:446756]  out_offset and2
[codex:446756]  out_size mul1
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Analyzing EVM call argument simulation**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] # Build opmap
[codex:446756] opmap = {}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op = code[pc]
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         n = op-0x5f
[codex:446756]         data = code[pc+1:pc+1+n]
[codex:446756]         opmap[pc] = (op, data)
[codex:446756]         pc += 1+n
[codex:446756]     else:
[codex:446756]         opmap[pc] = (op, None)
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756] opnames = {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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',
[codex:446756] 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:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] counter={}
[codex:446756] 
[codex:446756] def new(name):
[codex:446756]     counter[name]=counter.get(name,0)+1
[codex:446756]     return f\"{name}{counter[name]}\"
[codex:446756] 
[codex:446756] # initial stack at function entry: [retaddr, amount]
[codex:446756] stack=['retaddr','amount']
[codex:446756] 
[codex:446756] pc=0x0120
[codex:446756] 
[codex:446756] while True:
[codex:446756]     op,data = opmap[pc]
[codex:446756]     name = opnames.get(op, hex(op))
[codex:446756]     def pop():
[codex:446756]         return stack.pop() if stack else 'EMPTY'
[codex:446756]     def push(x):
[codex:446756]         stack.append(x)
[codex:446756] 
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n=op-0x7f
[codex:446756]         push(stack[-n] if len(stack)>=n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n=op-0x8f
[codex:446756]         if len(stack)>n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='SLOAD':
[codex:446756]         pop(); push(new('sload'))
[codex:446756]     elif name=='CALLER':
[codex:446756]         push('caller')
[codex:446756]     elif name in ('EXP','DIV','AND','EQ','MUL','SUB','ADD'):
[codex:446756]         pop(); pop(); push(new(name.lower()))
[codex:446756]     elif name=='ISZERO':
[codex:446756]         pop(); push(new('iszero'))
[codex:446756]     elif name=='JUMPI':
[codex:446756]         dest = pop(); cond = pop();
[codex:446756]         # take true branch
[codex:446756]         pc = int(dest,16)
[codex:446756]         print(f\"JUMPI to {hex(pc)} cond {cond} stack now {stack}\")
[codex:446756]         continue
[codex:446756]     elif name=='JUMPDEST':
[codex:446756]         pass
[codex:446756]     elif name=='JUMP':
[codex:446756]         dest=pop(); pc=int(dest,16); continue
[codex:446756]     elif name=='CALL':
[codex:446756]         # stop before call
[codex:446756]         break
[codex:446756]     
[codex:446756]     if pc in (0x0120,0x017b,0x01b4):
[codex:446756]         print(f\"pc {pc:04x} {name} stack: {stack}\")
[codex:446756] 
[codex:446756]     if 0x60 <= op <= 0x7f:
[codex:446756]         pc += 1 + (op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756]     if pc > 0x01b4:
[codex:446756]         break
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 20ms:
[codex:446756] pc 0120 JUMPDEST stack: ['retaddr', 'amount']
[codex:446756] JUMPI to 0x17b cond iszero2 stack now ['retaddr', 'amount']
[codex:446756] pc 017b JUMPDEST stack: ['retaddr', 'amount']
[codex:446756] pc 01b4 PUSH2 stack: ['retaddr', 'amount', 'and5', '0x08fc']
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Tracing call arguments with stack analysis**
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] # simulate stack from 0x01b4 to 0x01cc
[codex:446756] code = bytes.fromhex(\"608060405260043610610057576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff1680632e1a7d4d1461005c578063771fa92014610089578063d0e30db014610116575b600080fd5b34801561006857600080fd5b5061008760048036038101908080359060200190929190505050610120565b005b34801561009557600080fd5b50610114600480360381019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291905050506101e6565b005b61011e61031e565b005b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614151561017b57600080fd5b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff166108fc829081150290604051600060405180830381858888f193505050501580156101e2573d6000803e3d6000fd5b5050565b6000809054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614151561024157600080fd5b8173ffffffffffffffffffffffffffffffffffffffff166108fc829081150290604051600060405180830381858888f19350505050158015610287573d6000803e3d6000fd5b508373ffffffffffffffffffffffffffffffffffffffff166108fc60019081150290604051600060405180830381858888f193505050501580156102cf573d6000803e3d6000fd5b508273ffffffffffffffffffffffffffffffffffffffff166108fc60019081150290604051600060405180830381858888f19350505050158015610317573d6000803e3d6000fd5b5050505050565b5600a165627a7a723058206a0f4e67641e863dfcd405ba0392378aff9f8f7d92cb340c71c2e8a2b96f29dd0029\")
[codex:446756] 
[codex:446756] # opmap
[codex:446756] opmap={}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op=code[pc]
[codex:446756]     if 0x60<=op<=0x7f:
[codex:446756]         n=op-0x5f
[codex:446756]         opmap[pc]=(op, code[pc+1:pc+1+n])
[codex:446756]         pc+=1+n
[codex:446756]     else:
[codex:446756]         opmap[pc]=(op,None)
[codex:446756]         pc+=1
[codex:446756] 
[codex:446756] opnames={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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] counter={}
[codex:446756] 
[codex:446756] def new(name):
[codex:446756]     counter[name]=counter.get(name,0)+1
[codex:446756]     return f\"{name}{counter[name]}\"
[codex:446756] 
[codex:446756] stack=['retaddr','amount','owner']
[codex:446756] 
[codex:446756] pc=0x01b4
[codex:446756] 
[codex:446756] while True:
[codex:446756]     op,data=opmap[pc]
[codex:446756]     name=opnames.get(op, hex(op))
[codex:446756]     def pop():
[codex:446756]         return stack.pop() if stack else 'EMPTY'
[codex:446756]     def push(x):
[codex:446756]         stack.append(x)
[codex:446756] 
[codex:446756]     if 0x60<=op<=0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n=op-0x7f
[codex:446756]         push(stack[-n] if len(stack)>=n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n=op-0x8f
[codex:446756]         if len(stack)>n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='ISZERO':
[codex:446756]         pop(); push(new('iszero'))
[codex:446756]     elif name in ('MUL','SUB'):
[codex:446756]         pop(); pop(); push(new(name.lower()))
[codex:446756]     elif name=='MLOAD':
[codex:446756]         pop(); push(new('mload'))
[codex:446756]     elif name=='CALL':
[codex:446756]         out_size=pop(); out_offset=pop(); in_size=pop(); in_offset=pop(); value=pop(); to=pop(); gas=pop();
[codex:446756]         print('Stack before CALL (bottom->top):', stack)
[codex:446756]         print('CALL args: gas', gas, 'to', to, 'value', value, 'in_offset', in_offset, 'in_size', in_size, 'out_offset', out_offset, 'out_size', out_size)
[codex:446756]         break
[codex:446756] 
[codex:446756]     # debug print each step
[codex:446756]     #print(f\"{pc:04x} {name} stack {stack}\")
[codex:446756] 
[codex:446756]     if 0x60<=op<=0x7f:
[codex:446756]         pc += 1+(op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756]     if pc>0x01cc:
[codex:446756]         break
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 21ms:
[codex:446756] Stack before CALL (bottom->top): ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1']
[codex:446756] CALL args: gas 0x00 to mload2 value sub1 in_offset mload2 in_size amount out_offset owner out_size mul1
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Analyzing EVM call argument stack**
[codex:446756] 
[codex:446756] I’m verifying the stack state and argument mapping for the CALL instruction, noting the unusual gas=0x00 and argument positions. I suspect the initial stack or operation effects might be off, so I plan to print out each step’s stack changes between 0x01b4 and 0x01cc to check if I mis-simulated any instructions like SWAP or DUP.
[codex:446756] exec
[codex:446756] /bin/bash -lc "python - <<'PY'
[codex:446756] # step-by-step from 0x01b4
[codex:446756] code = bytes.fromhex(\"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\")
[codex:446756] 
[codex:446756] # opmap
[codex:446756] opmap={}
[codex:446756] pc=0
[codex:446756] while pc < len(code):
[codex:446756]     op=code[pc]
[codex:446756]     if 0x60<=op<=0x7f:
[codex:446756]         n=op-0x5f
[codex:446756]         opmap[pc]=(op, code[pc+1:pc+1+n])
[codex:446756]         pc+=1+n
[codex:446756]     else:
[codex:446756]         opmap[pc]=(op,None)
[codex:446756]         pc+=1
[codex:446756] 
[codex:446756] opnames={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:446756] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',
[codex:446756] 0x20:'SHA3',0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:446756] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:446756] 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:446756] 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:446756] 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:446756] 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:446756] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:446756] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'}
[codex:446756] 
[codex:446756] counter={}
[codex:446756] 
[codex:446756] def new(name):
[codex:446756]     counter[name]=counter.get(name,0)+1
[codex:446756]     return f\"{name}{counter[name]}\"
[codex:446756] 
[codex:446756] stack=['retaddr','amount','owner']
[codex:446756] 
[codex:446756] pc=0x01b4
[codex:446756] 
[codex:446756] while True:
[codex:446756]     op,data=opmap[pc]
[codex:446756]     name=opnames.get(op, hex(op))
[codex:446756]     def pop():
[codex:446756]         return stack.pop() if stack else 'EMPTY'
[codex:446756]     def push(x):
[codex:446756]         stack.append(x)
[codex:446756] 
[codex:446756]     if 0x60<=op<=0x7f:
[codex:446756]         push('0x'+data.hex())
[codex:446756]     elif name.startswith('DUP'):
[codex:446756]         n=op-0x7f
[codex:446756]         push(stack[-n] if len(stack)>=n else 'EMPTY')
[codex:446756]     elif name.startswith('SWAP'):
[codex:446756]         n=op-0x8f
[codex:446756]         if len(stack)>n:
[codex:446756]             stack[-1], stack[-(n+1)] = stack[-(n+1)], stack[-1]
[codex:446756]     elif name=='POP':
[codex:446756]         pop()
[codex:446756]     elif name=='ISZERO':
[codex:446756]         pop(); push(new('iszero'))
[codex:446756]     elif name in ('MUL','SUB'):
[codex:446756]         pop(); pop(); push(new(name.lower()))
[codex:446756]     elif name=='MLOAD':
[codex:446756]         pop(); push(new('mload'))
[codex:446756]     elif name=='CALL':
[codex:446756]         print(f\"{pc:04x} {name} stack before call: {stack}\")
[codex:446756]         out_size=pop(); out_offset=pop(); in_size=pop(); in_offset=pop(); value=pop(); to=pop(); gas=pop();
[codex:446756]         print('CALL args: gas', gas, 'to', to, 'value', value, 'in_offset', in_offset, 'in_size', in_size, 'out_offset', out_offset, 'out_size', out_size)
[codex:446756]         break
[codex:446756] 
[codex:446756]     print(f\"{pc:04x} {name} stack {stack}\")
[codex:446756] 
[codex:446756]     if 0x60<=op<=0x7f:
[codex:446756]         pc += 1+(op-0x5f)
[codex:446756]     else:
[codex:446756]         pc += 1
[codex:446756] 
[codex:446756]     if pc>0x01cc:
[codex:446756]         break
[codex:446756] PY" in /tmp/codex-multi-th7p2h2f succeeded in 18ms:
[codex:446756] 01b4 PUSH2 stack ['retaddr', 'amount', 'owner', '0x08fc']
[codex:446756] 01b7 DUP3 stack ['retaddr', 'amount', 'owner', '0x08fc', 'amount']
[codex:446756] 01b8 SWAP1 stack ['retaddr', 'amount', 'owner', 'amount', '0x08fc']
[codex:446756] 01b9 DUP2 stack ['retaddr', 'amount', 'owner', 'amount', '0x08fc', 'amount']
[codex:446756] 01ba ISZERO stack ['retaddr', 'amount', 'owner', 'amount', '0x08fc', 'iszero1']
[codex:446756] 01bb MUL stack ['retaddr', 'amount', 'owner', 'amount', 'mul1']
[codex:446756] 01bc SWAP1 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount']
[codex:446756] 01bd PUSH1 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', '0x40']
[codex:446756] 01bf MLOAD stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1']
[codex:446756] 01c0 PUSH1 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00']
[codex:446756] 01c2 PUSH1 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', '0x40']
[codex:446756] 01c4 MLOAD stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2']
[codex:446756] 01c5 DUP1 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'mload2']
[codex:446756] 01c6 DUP4 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'mload2', 'mload1']
[codex:446756] 01c7 SUB stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'sub1']
[codex:446756] 01c8 DUP2 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'sub1', 'mload2']
[codex:446756] 01c9 DUP6 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'sub1', 'mload2', 'amount']
[codex:446756] 01ca DUP9 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'sub1', 'mload2', 'amount', 'owner']
[codex:446756] 01cb DUP9 stack ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'sub1', 'mload2', 'amount', 'owner', 'mul1']
[codex:446756] 01cc CALL stack before call: ['retaddr', 'amount', 'owner', 'mul1', 'amount', 'mload1', '0x00', 'mload2', 'sub1', 'mload2', 'amount', 'owner', 'mul1']
[codex:446756] 
[codex:446756] 
[codex:446756] 
[codex:446756] thinking
[codex:446756] **Analyzing CALL argument order and gas calculation**
[codex:446756] thinking
[codex:446756] **Examining EXP and DIV operand order and owner check logic**
[codex:446756] 
[codex:446756] The contract’s owner check seems broken due to how EXP and DIV handle operands—calculating 0^256 or similar yields zero, causing the owner address to be zero and making the require fail for everyone. I’m carefully verifying EVM operand order and stack state to understand why the computed owner is always zero, which effectively locks contract functions behind an impossible ownership check. This could mean the contract is unusable but not exploitable for profit.
[codex:446756] thinking
[codex:446756] **Confirming no exploitable paths in bytecode**
[codex:446756] 
[codex:446756] I've carefully reviewed the bytecode logic around owner checks, jumps, and function dispatch, finding no concrete way to bypass the owner requirement or trigger harmful external calls. The deposit function lacks side effects, and all other critical paths fail owner validation, so no exploitable profit path emerges. I'll prepare a JSON summary reflecting these conclusions.
[codex:446756] codex
[codex:446756] {"no_findings":true,"summary":"No concrete, exploitable value-extraction path identified from the bytecode. The only callable entry points either do nothing (deposit selector) or gate external value transfers behind an owner check; no controllable CALL/DELEGATECALL/SELFDESTRUCT paths for an unprivileged caller were found.","findings":[]}
[codex:446756] tokens used
[codex:446756] 104,472
[codex:446756] {"no_findings":true,"summary":"No concrete, exploitable value-extraction path identified from the bytecode. The only callable entry points either do nothing (deposit selector) or gate external value transfers behind an owner check; no controllable CALL/DELEGATECALL/SELFDESTRUCT paths for an unprivileged caller were found.","findings":[]}
Metadata 
{
    "codex": {
        "ran_at": "2026-01-05T03:37:09.370305+00:00",
        "returncode": 0
    },
    "summary": "No concrete, exploitable value-extraction path identified from the bytecode. The only callable entry points either do nothing (deposit selector) or gate external value transfers behind an owner check; no controllable CALL/DELEGATECALL/SELFDESTRUCT paths for an unprivileged caller were found.",
    "raw_final": {
        "summary": "No concrete, exploitable value-extraction path identified from the bytecode. The only callable entry points either do nothing (deposit selector) or gate external value transfers behind an owner check; no controllable CALL/DELEGATECALL/SELFDESTRUCT paths for an unprivileged caller were found.",
        "findings": [],
        "no_findings": true
    },
    "no_findings": true,
    "schema_version": 1
}

Opcode Heuristics

tool.cast_disasm
Delegatecall
0
Selfdestruct
1
CREATE2
0
CALL-family (heavy)
4
EXT*/BALANCE
0
Total opcodes
397
Flags
selfdestruct_present
View cast disassembly output 
00000000: PUSH1 0x80
00000002: PUSH1 0x40
00000004: MSTORE
00000005: PUSH1 0x04
00000007: CALLDATASIZE
00000008: LT
00000009: PUSH2 0x0057
0000000c: JUMPI
0000000d: PUSH1 0x00
0000000f: CALLDATALOAD
00000010: PUSH29 0x0100000000000000000000000000000000000000000000000000000000
0000002e: SWAP1
0000002f: DIV
00000030: PUSH4 0xffffffff
00000035: AND
00000036: DUP1
00000037: PUSH4 0x2e1a7d4d
0000003c: EQ
0000003d: PUSH2 0x005c
00000040: JUMPI
00000041: DUP1
00000042: PUSH4 0x771fa920
00000047: EQ
00000048: PUSH2 0x0089
0000004b: JUMPI
0000004c: DUP1
0000004d: PUSH4 0xd0e30db0
00000052: EQ
00000053: PUSH2 0x0116
00000056: JUMPI
00000057: JUMPDEST
00000058: PUSH1 0x00
0000005a: DUP1
0000005b: REVERT
0000005c: JUMPDEST
0000005d: CALLVALUE
0000005e: DUP1
0000005f: ISZERO
00000060: PUSH2 0x0068
00000063: JUMPI
00000064: PUSH1 0x00
00000066: DUP1
00000067: REVERT
00000068: JUMPDEST
00000069: POP
0000006a: PUSH2 0x0087
0000006d: PUSH1 0x04
0000006f: DUP1
00000070: CALLDATASIZE
00000071: SUB
00000072: DUP2
00000073: ADD
00000074: SWAP1
00000075: DUP1
00000076: DUP1
00000077: CALLDATALOAD
00000078: SWAP1
00000079: PUSH1 0x20
0000007b: ADD
0000007c: SWAP1
0000007d: SWAP3
0000007e: SWAP2
0000007f: SWAP1
00000080: POP
00000081: POP
00000082: POP
00000083: PUSH2 0x0120
00000086: JUMP
00000087: JUMPDEST
00000088: STOP
00000089: JUMPDEST
0000008a: CALLVALUE
0000008b: DUP1
0000008c: ISZERO
0000008d: PUSH2 0x0095
00000090: JUMPI
00000091: PUSH1 0x00
00000093: DUP1
00000094: REVERT
00000095: JUMPDEST
00000096: POP
00000097: PUSH2 0x0114
0000009a: PUSH1 0x04
0000009c: DUP1
0000009d: CALLDATASIZE
0000009e: SUB
0000009f: DUP2
000000a0: ADD
000000a1: SWAP1
000000a2: DUP1
000000a3: DUP1
000000a4: CALLDATALOAD
000000a5: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000000ba: AND
000000bb: SWAP1
000000bc: PUSH1 0x20
000000be: ADD
000000bf: SWAP1
000000c0: SWAP3
000000c1: SWAP2
000000c2: SWAP1
000000c3: DUP1
000000c4: CALLDATALOAD
000000c5: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000000da: AND
000000db: SWAP1
000000dc: PUSH1 0x20
000000de: ADD
000000df: SWAP1
000000e0: SWAP3
000000e1: SWAP2
000000e2: SWAP1
000000e3: DUP1
000000e4: CALLDATALOAD
000000e5: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000000fa: AND
000000fb: SWAP1
000000fc: PUSH1 0x20
000000fe: ADD
000000ff: SWAP1
00000100: SWAP3
00000101: SWAP2
00000102: SWAP1
00000103: DUP1
00000104: CALLDATALOAD
00000105: SWAP1
00000106: PUSH1 0x20
00000108: ADD
00000109: SWAP1
0000010a: SWAP3
0000010b: SWAP2
0000010c: SWAP1
0000010d: POP
0000010e: POP
0000010f: POP
00000110: PUSH2 0x01e6
00000113: JUMP
00000114: JUMPDEST
00000115: STOP
00000116: JUMPDEST
00000117: PUSH2 0x011e
0000011a: PUSH2 0x031e
0000011d: JUMP
0000011e: JUMPDEST
0000011f: STOP
00000120: JUMPDEST
00000121: PUSH1 0x00
00000123: DUP1
00000124: SWAP1
00000125: SLOAD
00000126: SWAP1
00000127: PUSH2 0x0100
0000012a: EXP
0000012b: SWAP1
0000012c: DIV
0000012d: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000142: AND
00000143: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000158: AND
00000159: CALLER
0000015a: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000016f: AND
00000170: EQ
00000171: ISZERO
00000172: ISZERO
00000173: PUSH2 0x017b
00000176: JUMPI
00000177: PUSH1 0x00
00000179: DUP1
0000017a: REVERT
0000017b: JUMPDEST
0000017c: PUSH1 0x00
0000017e: DUP1
0000017f: SWAP1
00000180: SLOAD
00000181: SWAP1
00000182: PUSH2 0x0100
00000185: EXP
00000186: SWAP1
00000187: DIV
00000188: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000019d: AND
0000019e: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000001b3: AND
000001b4: PUSH2 0x08fc
000001b7: DUP3
000001b8: SWAP1
000001b9: DUP2
000001ba: ISZERO
000001bb: MUL
000001bc: SWAP1
000001bd: PUSH1 0x40
000001bf: MLOAD
000001c0: PUSH1 0x00
000001c2: PUSH1 0x40
000001c4: MLOAD
000001c5: DUP1
000001c6: DUP4
000001c7: SUB
000001c8: DUP2
000001c9: DUP6
000001ca: DUP9
000001cb: DUP9
000001cc: CALL
000001cd: SWAP4
000001ce: POP
000001cf: POP
000001d0: POP
000001d1: POP
000001d2: ISZERO
000001d3: DUP1
000001d4: ISZERO
000001d5: PUSH2 0x01e2
000001d8: JUMPI
000001d9: RETURNDATASIZE
000001da: PUSH1 0x00
000001dc: DUP1
000001dd: RETURNDATACOPY
000001de: RETURNDATASIZE
000001df: PUSH1 0x00
000001e1: REVERT
000001e2: JUMPDEST
000001e3: POP
000001e4: POP
000001e5: JUMP
000001e6: JUMPDEST
000001e7: PUSH1 0x00
000001e9: DUP1
000001ea: SWAP1
000001eb: SLOAD
000001ec: SWAP1
000001ed: PUSH2 0x0100
000001f0: EXP
000001f1: SWAP1
000001f2: DIV
000001f3: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000208: AND
00000209: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000021e: AND
0000021f: CALLER
00000220: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000235: AND
00000236: EQ
00000237: ISZERO
00000238: ISZERO
00000239: PUSH2 0x0241
0000023c: JUMPI
0000023d: PUSH1 0x00
0000023f: DUP1
00000240: REVERT
00000241: JUMPDEST
00000242: DUP2
00000243: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
00000258: AND
00000259: PUSH2 0x08fc
0000025c: DUP3
0000025d: SWAP1
0000025e: DUP2
0000025f: ISZERO
00000260: MUL
00000261: SWAP1
00000262: PUSH1 0x40
00000264: MLOAD
00000265: PUSH1 0x00
00000267: PUSH1 0x40
00000269: MLOAD
0000026a: DUP1
0000026b: DUP4
0000026c: SUB
0000026d: DUP2
0000026e: DUP6
0000026f: DUP9
00000270: DUP9
00000271: CALL
00000272: SWAP4
00000273: POP
00000274: POP
00000275: POP
00000276: POP
00000277: ISZERO
00000278: DUP1
00000279: ISZERO
0000027a: PUSH2 0x0287
0000027d: JUMPI
0000027e: RETURNDATASIZE
0000027f: PUSH1 0x00
00000281: DUP1
00000282: RETURNDATACOPY
00000283: RETURNDATASIZE
00000284: PUSH1 0x00
00000286: REVERT
00000287: JUMPDEST
00000288: POP
00000289: DUP4
0000028a: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000029f: AND
000002a0: PUSH2 0x08fc
000002a3: PUSH1 0x01
000002a5: SWAP1
000002a6: DUP2
000002a7: ISZERO
000002a8: MUL
000002a9: SWAP1
000002aa: PUSH1 0x40
000002ac: MLOAD
000002ad: PUSH1 0x00
000002af: PUSH1 0x40
000002b1: MLOAD
000002b2: DUP1
000002b3: DUP4
000002b4: SUB
000002b5: DUP2
000002b6: DUP6
000002b7: DUP9
000002b8: DUP9
000002b9: CALL
000002ba: SWAP4
000002bb: POP
000002bc: POP
000002bd: POP
000002be: POP
000002bf: ISZERO
000002c0: DUP1
000002c1: ISZERO
000002c2: PUSH2 0x02cf
000002c5: JUMPI
000002c6: RETURNDATASIZE
000002c7: PUSH1 0x00
000002c9: DUP1
000002ca: RETURNDATACOPY
000002cb: RETURNDATASIZE
000002cc: PUSH1 0x00
000002ce: REVERT
000002cf: JUMPDEST
000002d0: POP
000002d1: DUP3
000002d2: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000002e7: AND
000002e8: PUSH2 0x08fc
000002eb: PUSH1 0x01
000002ed: SWAP1
000002ee: DUP2
000002ef: ISZERO
000002f0: MUL
000002f1: SWAP1
000002f2: PUSH1 0x40
000002f4: MLOAD
000002f5: PUSH1 0x00
000002f7: PUSH1 0x40
000002f9: MLOAD
000002fa: DUP1
000002fb: DUP4
000002fc: SUB
000002fd: DUP2
000002fe: DUP6
000002ff: DUP9
00000300: DUP9
00000301: CALL
00000302: SWAP4
00000303: POP
00000304: POP
00000305: POP
00000306: POP
00000307: ISZERO
00000308: DUP1
00000309: ISZERO
0000030a: PUSH2 0x0317
0000030d: JUMPI
0000030e: RETURNDATASIZE
0000030f: PUSH1 0x00
00000311: DUP1
00000312: RETURNDATACOPY
00000313: RETURNDATASIZE
00000314: PUSH1 0x00
00000316: REVERT
00000317: JUMPDEST
00000318: POP
00000319: POP
0000031a: POP
0000031b: POP
0000031c: POP
0000031d: JUMP
0000031e: JUMPDEST
0000031f: JUMP
00000320: STOP
00000321: LOG1
00000322: PUSH6 0x627a7a723058
00000329: KECCAK256
0000032a: PUSH11 0x0f4e67641e863dfcd405ba
00000336: SUB
00000337: SWAP3
00000338: CALLDATACOPY
00000339: DUP11
0000033a: SELFDESTRUCT
0000033b: SWAP16
0000033c: DUP16
0000033d: PUSH30

Findings

validated = confirmed for call sinks; sink observed for others
Severity Category Tool Title Confidence Validated Confirmed Details
high other cast SELFDESTRUCT present 85 no —
view
evidence_json 
{
    "notes": "selfdestruct can remove contract code and send funds; review reachability",
    "selfdestruct_count": 1
}
medium other detector Untrusted CALL target/value reachable 45 no no
view
trace_id: 0x10a5ebbb31a44309f196dae44fae5f18320f08367e8295d1c77dac198c47dbb0
call_targets: 0xdd85fd9b66996b84b31fc5a31598a242fcb6425b
target_varies: no
classification: constant_target
validation_json 
{
    "sink": "CALL",
    "errors": 0,
    "status": "sink_reached",
    "attempts": 1,
    "trace_id": "0x10a5ebbb31a44309f196dae44fae5f18320f08367e8295d1c77dac198c47dbb0",
    "confirmed": false,
    "trace_mode": "callTracer",
    "call_targets": [
        "0xdd85fd9b66996b84b31fc5a31598a242fcb6425b"
    ],
    "matched_probe": null,
    "target_varies": false,
    "classification": "constant_target"
}
witness_json 
{
    "notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
    "constraints": [],
    "entrypoints": [
        {
            "calldata": "0xffffffff",
            "selector": "0xffffffff",
            "calldata_variants": [
                "0xffffffff",
                "0xffffffff0000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0x2e1a7d4d",
            "selector": "0x2e1a7d4d",
            "calldata_variants": [
                "0x2e1a7d4d",
                "0x2e1a7d4d0000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0x771fa920",
            "selector": "0x771fa920",
            "calldata_variants": [
                "0x771fa920",
                "0x771fa9200000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0xd0e30db0",
            "selector": "0xd0e30db0",
            "calldata_variants": [
                "0xd0e30db0",
                "0xd0e30db00000000000000000000000000000000000000000000000000000000000000000"
            ]
        }
    ]
}
evidence_json 
{
    "examples": [
        {
            "pc": 460,
            "opcode": "CALL",
            "returndata_checked": null,
            "value_expression_category": "computed",
            "target_expression_category": "computed"
        },
        {
            "pc": 625,
            "opcode": "CALL",
            "returndata_checked": null,
            "value_expression_category": "computed",
            "target_expression_category": "computed"
        },
        {
            "pc": 697,
            "opcode": "CALL",
            "returndata_checked": null,
            "value_expression_category": "computed",
            "target_expression_category": "computed"
        }
    ],
    "call_count": 4,
    "guards_detected": [
        {
            "pc": 345,
            "type": "msg_sender_eq_const",
            "value": "0xffffffffffffffffffffffffffffffffffffffff"
        },
        {
            "pc": 543,
            "type": "msg_sender_eq_const",
            "value": "0xffffffffffffffffffffffffffffffffffffffff"
        }
    ],
    "untrusted_call_count": 4
}
medium other detector ETH value transfer possible 40 no no
view
trace_id: 0x10a5ebbb31a44309f196dae44fae5f18320f08367e8295d1c77dac198c47dbb0
call_targets: 0xdd85fd9b66996b84b31fc5a31598a242fcb6425b
target_varies: no
classification: constant_target
validation_json 
{
    "sink": "CALL",
    "errors": 0,
    "status": "sink_reached",
    "attempts": 1,
    "trace_id": "0x10a5ebbb31a44309f196dae44fae5f18320f08367e8295d1c77dac198c47dbb0",
    "confirmed": false,
    "trace_mode": "callTracer",
    "call_targets": [
        "0xdd85fd9b66996b84b31fc5a31598a242fcb6425b"
    ],
    "matched_probe": null,
    "target_varies": false,
    "classification": "constant_target"
}
witness_json 
{
    "notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
    "constraints": [],
    "entrypoints": [
        {
            "calldata": "0xffffffff",
            "selector": "0xffffffff",
            "calldata_variants": [
                "0xffffffff",
                "0xffffffff0000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0x2e1a7d4d",
            "selector": "0x2e1a7d4d",
            "calldata_variants": [
                "0x2e1a7d4d",
                "0x2e1a7d4d0000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0x771fa920",
            "selector": "0x771fa920",
            "calldata_variants": [
                "0x771fa920",
                "0x771fa9200000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0xd0e30db0",
            "selector": "0xd0e30db0",
            "calldata_variants": [
                "0xd0e30db0",
                "0xd0e30db00000000000000000000000000000000000000000000000000000000000000000"
            ]
        }
    ]
}
evidence_json 
{
    "examples": [
        {
            "pc": 460,
            "opcode": "CALL",
            "returndata_checked": null,
            "value_expression_category": "computed",
            "target_expression_category": "computed"
        },
        {
            "pc": 625,
            "opcode": "CALL",
            "returndata_checked": null,
            "value_expression_category": "computed",
            "target_expression_category": "computed"
        },
        {
            "pc": 697,
            "opcode": "CALL",
            "returndata_checked": null,
            "value_expression_category": "computed",
            "target_expression_category": "computed"
        }
    ],
    "eth_value_calls": 4,
    "guards_detected": [
        {
            "pc": 345,
            "type": "msg_sender_eq_const",
            "value": "0xffffffffffffffffffffffffffffffffffffffff"
        },
        {
            "pc": 543,
            "type": "msg_sender_eq_const",
            "value": "0xffffffffffffffffffffffffffffffffffffffff"
        }
    ]
}
medium other detector SELFDESTRUCT reachable 45 no no
view
trace_id: 0xec86d7129a494dbbbdbf15a03e4511efe8c930163eb03ee54817784c6c788798
validation_json 
{
    "sink": "SELFDESTRUCT",
    "errors": 0,
    "status": "unknown",
    "attempts": 8,
    "trace_id": "0xec86d7129a494dbbbdbf15a03e4511efe8c930163eb03ee54817784c6c788798",
    "confirmed": false,
    "trace_mode": "structLogs",
    "call_targets": null,
    "matched_probe": null,
    "target_varies": null,
    "classification": "no_sink"
}
witness_json 
{
    "notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
    "constraints": [],
    "entrypoints": [
        {
            "calldata": "0xffffffff",
            "selector": "0xffffffff",
            "calldata_variants": [
                "0xffffffff",
                "0xffffffff0000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0x2e1a7d4d",
            "selector": "0x2e1a7d4d",
            "calldata_variants": [
                "0x2e1a7d4d",
                "0x2e1a7d4d0000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0x771fa920",
            "selector": "0x771fa920",
            "calldata_variants": [
                "0x771fa920",
                "0x771fa9200000000000000000000000000000000000000000000000000000000000000000"
            ]
        },
        {
            "calldata": "0xd0e30db0",
            "selector": "0xd0e30db0",
            "calldata_variants": [
                "0xd0e30db0",
                "0xd0e30db00000000000000000000000000000000000000000000000000000000000000000"
            ]
        }
    ]
}
evidence_json 
{
    "guards_detected": [
        {
            "pc": 345,
            "type": "msg_sender_eq_const",
            "value": "0xffffffffffffffffffffffffffffffffffffffff"
        },
        {
            "pc": 543,
            "type": "msg_sender_eq_const",
            "value": "0xffffffffffffffffffffffffffffffffffffffff"
        }
    ],
    "selfdestruct_count": 1
}