user: 请从给定的汇编指令推导出C源代码：

```asm
<readtree>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r13
  mov    %esi,%ebx
  mov    $0x1,%esi
  mov    $0xf4241,%edi
  call   <check_alloc@plt>
  mov    %rax,%rbp
  imul   $0x12c,%ebx,%edi
  mov    $0x1,%esi
  call   <check_alloc@plt>
  mov    %rax,%r14
  movb   $0xa,0x0(%rbp)
L361:
  mov    %r13,%rdx
  mov    $0xf4240,%esi
  mov    %rbp,%rdi
  call   <fgets@plt>
  movzbl 0x0(%rbp),%eax
  cmp    $0xa,%al
  je     L361
  cmp    $0x20,%al
  je     L53
  cmp    $0x9,%al
  jne    L107
L53:
  lea    0x1(%rbp),%rdx
L171:
  mov    %rdx,%r12
  movzbl (%rdx),%eax
  add    $0x1,%rdx
  cmp    $0x20,%al
  je     L171
  cmp    $0x9,%al
  je     L171
L15:
  cmp    $0x28,%al
  je     L169
  cmp    $0x5b,%al
  jne    L237
L169:
  cmp    $0x5b,%al
  jne    L230
L133:
  mov    $0x5d,%esi
  mov    %rbp,%rdi
  call   <strchr@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  jne    L151
  mov    %r13,%rdx
  mov    $0xf4240,%esi
  mov    %rbp,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  jne    L133
  lea    D13(%rip),%rdi
  call   <printf@plt>
  mov    %rbx,%r14
  jmp    L383
L107:
  mov    %rbp,%r12
  jmp    L15
L237:
  lea    D40(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%r14d
  jmp    L383
L151:
  lea    0x1(%rax),%r12
  movzbl 0x1(%rax),%eax
  cmp    $0x20,%al
  je     L60
  cmp    $0x9,%al
  jne    L186
L60:
  add    $0x1,%r12
  movzbl (%r12),%eax
  cmp    $0x20,%al
  je     L60
  cmp    $0x9,%al
  je     L60
L186:
  cmp    $0xa,%al
  je     L145
L254:
  cmpb   $0x28,(%r12)
  jne    L417
L230:
  mov    %r12,%rdx
  lea    D12(%rip),%rsi
  mov    %r14,%rdi
  call   <sprintf@plt>
  movzbl (%r14),%eax
  cmp    $0x3b,%al
  ja     L236
  mov    %r14,%rbx
  movabs $0x800000000000401,%rdx
  bt     %rax,%rdx
  jae    L373
  jmp    L400
L145:
  movb   $0xa,0x0(%rbp)
L26:
  mov    %r13,%rdx
  mov    $0xf4240,%esi
  mov    %rbp,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  je     L84
  cmpb   $0xa,0x0(%rbp)
  je     L26
L84:
  movzbl 0x0(%rbp),%eax
  cmp    $0x20,%al
  je     L289
  cmp    $0x9,%al
  jne    L149
L289:
  mov    %rbp,%r12
L85:
  add    $0x1,%r12
  movzbl (%r12),%eax
  cmp    $0x20,%al
  je     L85
  cmp    $0x9,%al
  je     L85
  jmp    L254
L149:
  mov    %rbp,%r12
  jmp    L254
L417:
  lea    D46(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%r14d
  jmp    L383
L236:
  mov    %r14,%rbx
L373:
  movabs $0x800000000000401,%rdx
L10:
  add    $0x1,%rbx
  movzbl (%rbx),%eax
  cmp    $0x3b,%al
  ja     L10
  bt     %rax,%rdx
  jae    L10
L400:
  lea    D12(%rip),%r15
  cmp    $0x3b,%al
  je     L383
L246:
  mov    %r13,%rdx
  mov    $0xf4240,%esi
  mov    %rbp,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  je     L205
  mov    %rbp,%rdx
  mov    %r15,%rsi
  mov    %rbx,%rdi
  call   <sprintf@plt>
  mov    $0x3b,%esi
  mov    %rbp,%rdi
  call   <strchr@plt>
  cmp    %rax,%r12
  je     L316
  movzbl (%rbx),%eax
  cmp    $0xa,%al
  je     L246
  test   %al,%al
  je     L246
L412:
  add    $0x1,%rbx
  movzbl (%rbx),%eax
  cmp    $0xa,%al
  je     L246
  test   %al,%al
  jne    L412
  jmp    L246
L316:
  movb   $0x0,0x1(%r12)
  jmp    L383
L205:
  movb   $0x0,(%rbx)
  mov    %rbp,%rdi
  call   <free@plt>
L383:
  mov    %r14,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

tool_calls: name: unpack_data
arguments: label: D13
datatype: string
name: unpack_data
arguments: label: D40
datatype: string
name: unpack_data
arguments: label: D12
datatype: string
name: unpack_data
arguments: label: D46
datatype: string

tool: D13: Unterminated comment in tree ('[' missing)


tool: D40: Tree first character should be '[' or '('


tool: D12: %s

tool: D46: Comments should be followed by '('


assistant: ```c
char *readtree(FILE *treef, int nbsp) {
  char *line;
  char *ctree, *ctreefin, *prov;
  int i;
  line = (char *)check_alloc(1000000 + 1, sizeof(char));
  ctree = check_alloc(3 * 100 * nbsp, sizeof(char));
  ctreefin = ctree;
  line[0] = '\n';
  while (line[0] == '\n')
    fgets(line, 1000000, treef);
  i = 0;
  while (line[i] == ' ' || line[i] == '\t')
    i++;
  if (line[i] != '(' && line[i] != '[') {
    printf("Tree first character should be '[' or '('\n");
    return NULL;
  }
  if (line[i] == '[') {
    while ((prov = strchr(line, ']')) == NULL) {
      if (!fgets(line, 1000000, treef)) {
        printf("Unterminated comment in tree ('[' missing)\n");
        return NULL;
      }
    }
    prov++;
    while (*prov == ' ' || *prov == '\t')
      prov++;
    if (*prov == '\n') {
      line[0] = '\n';
      while (line[0] == '\n' && fgets(line, 1000000, treef))
        ;
      prov = line;
      while (*prov == ' ' || *prov == '\t')
        prov++;
    }
    if (*prov != '(') {
      printf("Comments should be followed by '('\n");
      return NULL;
    }
  } else {
    prov = line + i;
  }
  sprintf(ctree, "%s", prov);
  while (*ctreefin != '\n' && *ctreefin != ';' && *ctreefin)
    ctreefin++;
  if (*ctreefin == ';')
    return ctree;
  while (fgets(line, 1000000, treef)) {
    sprintf(ctreefin, "%s", line);
    if (prov == strchr(line, ';')) {
      *(prov + 1) = 0;
      return ctree;
    }
    while (*ctreefin != '\n' && *ctreefin)
      ctreefin++;
  }
  *ctreefin = 0;
  free(line);
  return ctree;
}
```