user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_ulong@plt>
  mov    %rax,%r12
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_ulong@plt>
  mov    %rax,%r14
  lea    0x0(,%r12,4),%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  lea    0x0(,%r14,4),%edi
  call   <malloc@plt>
  mov    %rax,%r13
  mov    %r14,%rcx
  mov    %rax,%rdx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <is_relaxed_prefix@plt>
  test   %rax,%rax
  jne    L61
  lea    0x1(%r14),%rax
  cmp    %r12,%rax
  jb     L97
  test   %r14,%r14
  je     L42
  test   %r12,%r12
  je     L42
  mov    $0x0,%eax
  mov    $0x0,%edx
  cmp    %r14,%r12
  mov    %r14,%rsi
  cmovbe %r12,%rsi
  jmp    L159
L61:
  lea    0x1(%r14),%rax
  cmp    %r12,%rax
  setae  %dil
  movzbl %dil,%edi
  call   <__VERIFIER_assert@plt>
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_ulong@plt>
  mov    %rax,%r15
  cmp    %r14,%r12
  jbe    L41
  lea    -0x1(%r12),%r15
L41:
  test   %r14,%r14
  je     L97
  test   %r12,%r12
  je     L97
  mov    $0x0,%ebx
  cmp    %r14,%r12
  cmova  %r14,%r12
  jmp    L145
L53:
  cmp    %eax,0x0(%rbp,%rbx,4)
  sete   %dil
  movzbl %dil,%edi
  call   <__VERIFIER_assume@plt>
L136:
  add    $0x1,%rbx
  cmp    %rbx,%r12
  jbe    L97
L145:
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,0x0(%rbp,%rbx,4)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,0x0(%r13,%rbx,4)
  cmp    %rbx,%r15
  ja     L53
  je     L37
  jae    L136
  mov    -0x4(%r13,%rbx,4),%eax
  cmp    %eax,0x0(%rbp,%rbx,4)
  sete   %dil
  movzbl %dil,%edi
  call   <__VERIFIER_assert@plt>
  jmp    L136
L37:
  cmp    %eax,0x0(%rbp,%rbx,4)
  setne  %dil
  movzbl %dil,%edi
  call   <__VERIFIER_assume@plt>
  jmp    L136
L0:
  add    $0x1,%rax
  cmp    %rax,%rsi
  jbe    L7
L159:
  mov    %rax,%rcx
  sub    %rdx,%rcx
  mov    0x0(%r13,%rcx,4),%ecx
  cmp    %ecx,0x0(%rbp,%rax,4)
  je     L0
  add    $0x1,%rdx
  jmp    L0
L42:
  mov    $0x0,%edx
L7:
  cmp    %r12,%r14
  adc    $0x0,%rdx
  cmp    $0x1,%rdx
  seta   %dil
  movzbl %dil,%edi
  call   <__VERIFIER_assert@plt>
L97:
  mov    %rbp,%rdi
  call   <free@plt>
  mov    %r13,%rdi
  call   <free@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int main() {
  unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong();
  int *pat = malloc(sizeof(int) * pat_len);
  int *a = malloc(sizeof(int) * a_len);
  if (is_relaxed_prefix(pat, pat_len, a, a_len)) {
    __VERIFIER_assert(pat_len <= a_len + 1);
    unsigned long different = __VERIFIER_nondet_ulong();
    if (pat_len > a_len)
      different = pat_len - 1;
    for (int i = 0; i < pat_len && i < a_len; i++) {
      pat[i] = __VERIFIER_nondet_int();
      a[i] = __VERIFIER_nondet_int();
      if (i < different)
        __VERIFIER_assume(pat[i] == a[i]);
      else if (i == different)
        __VERIFIER_assume(pat[i] != a[i]);
      else if (i > different)
        __VERIFIER_assert(pat[i] == a[i - 1]);
    }
  } else if (pat_len <= a_len + 1) {
    unsigned long differences = 0;
    for (int i = 0; i < pat_len && i < a_len; i++) {
      if (pat[i] != a[i - differences])
        ++differences;
    }
    if (pat_len > a_len)
      ++differences;
    __VERIFIER_assert(differences > 1);
  }
  free(pat);
  free(a);
  return 0;
}
```