user: What is the c source code of the assembly code below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,-0x40(%rbp)
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,-0x38(%rbp)
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,-0x30(%rbp)
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,-0x28(%rbp)
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,-0x20(%rbp)
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,-0x18(%rbp)
  mov    $0x0,%eax
  call   <BN_RECP_CTX_new@plt>
  mov    %rax,-0x10(%rbp)
  mov    $0x0,%eax
  call   <BN_CTX_new@plt>
  mov    %rax,-0x8(%rbp)
L41:
  mov    $0x0,%eax
  call   <rand@plt>
  mov    %eax,%esi
  mov    -0x40(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <BN_pseudo_rand@plt>
  mov    $0x0,%eax
  call   <rand@plt>
  mov    %eax,%esi
  mov    -0x38(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <BN_pseudo_rand@plt>
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <BN_is_zero@plt>
  test   %rax,%rax
  jne    L16
  mov    -0x8(%rbp),%rdx
  mov    -0x38(%rbp),%rcx
  mov    -0x10(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <BN_RECP_CTX_set@plt>
  mov    -0x8(%rbp),%rdi
  mov    -0x38(%rbp),%rcx
  mov    -0x40(%rbp),%rdx
  mov    -0x18(%rbp),%rsi
  mov    -0x20(%rbp),%rax
  mov    %rdi,%r8
  mov    %rax,%rdi
  call   <BN_div@plt>
  cmp    $0x1,%eax
  je     L58
  mov    -0x38(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  mov    %rax,%rsi
  lea    D2(%rip),%rax
  mov    %rax,%rdi
  call   <bug@plt>
L58:
  mov    -0x8(%rbp),%rdi
  mov    -0x10(%rbp),%rcx
  mov    -0x40(%rbp),%rdx
  mov    -0x28(%rbp),%rsi
  mov    -0x30(%rbp),%rax
  mov    %rdi,%r8
  mov    %rax,%rdi
  call   <BN_div_recp@plt>
  cmp    $0x1,%eax
  je     L60
  mov    -0x38(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  mov    %rax,%rsi
  lea    D12(%rip),%rax
  mov    %rax,%rdi
  call   <bug@plt>
  jmp    L41
L60:
  mov    -0x20(%rbp),%rdx
  mov    -0x30(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <BN_cmp@plt>
  test   %rax,%rax
  jne    L67
  mov    -0x20(%rbp),%rdx
  mov    -0x30(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <BN_cmp@plt>
  test   %rax,%rax
  je     L41
L67:
  mov    -0x38(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  mov    %rax,%rsi
  lea    D22(%rip),%rax
  mov    %rax,%rdi
  call   <bug@plt>
  jmp    L41
L16:
  nop
  jmp    L41
```

tool_calls: name: read_data
arguments: data_label: D2
type_infered: string
name: read_data
arguments: data_label: D12
type_infered: string
name: read_data
arguments: data_label: D22
type_infered: string

tool: D2: BN_div failed

tool: D12: BN_div_recp failed

tool: D22: mismatch

assistant: ```c
main() {
  BIGNUM *a = BN_new(), *b = BN_new(), *c = BN_new(), *d = BN_new(), *C = BN_new(), *D = BN_new();
  BN_RECP_CTX *recp = BN_RECP_CTX_new();
  BN_CTX *ctx = BN_CTX_new();
  for (;;) {
    BN_pseudo_rand(a, rand(), 0, 0);
    BN_pseudo_rand(b, rand(), 0, 0);
    if (BN_is_zero(b))
      continue;
    BN_RECP_CTX_set(recp, b, ctx);
    if (BN_div(C, D, a, b, ctx) != 1)
      bug("BN_div failed", a, b);
    if (BN_div_recp(c, d, a, recp, ctx) != 1)
      bug("BN_div_recp failed", a, b);
    else if (BN_cmp(c, C) != 0 || BN_cmp(c, C) != 0)
      bug("mismatch", a, b);
  }
}
```