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

```asm
<derivs_four>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rsi,%r14
  mov    %rdx,%r12
  mov    %rcx,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  mov    %rdi,%r13
  mov    %rsi,%r15
  mov    $0x0,%ebp
L5:
  movsd  0x0(%r13),%xmm6
  movsd  %xmm6,0x8(%rsp)
  movsd  %xmm6,0x30(%rsp,%rbp,1)
  mov    %r12,%rdx
  mov    %r15,%rsi
  mov    %r13,%rdi
  call   <derivs_one@plt>
  mov    $0x3e8,%edi
  movsd  0x58(%r12),%xmm1
  movsd  0x8(%rsp),%xmm0
  call   <boltzmann@plt>
  divsd  0x30(%r12),%xmm0
  movsd  %xmm0,0x10(%rsp,%rbp,1)
  add    $0x18,%r13
  add    $0x18,%r15
  add    $0x8,%rbp
  cmp    $0x20,%rbp
  jne    L5
  movsd  0x30(%rsp),%xmm0
  movsd  0x18(%rsp),%xmm11
  movsd  0x20(%rsp),%xmm10
  movsd  0x28(%rsp),%xmm2
  movapd %xmm11,%xmm9
  mulsd  (%rbx),%xmm9
  movapd %xmm10,%xmm1
  mulsd  0x8(%rbx),%xmm1
  addsd  %xmm1,%xmm9
  movapd %xmm2,%xmm1
  mulsd  0x10(%rbx),%xmm1
  addsd  %xmm1,%xmm9
  movsd  D0(%rip),%xmm5
  movapd %xmm5,%xmm1
  subsd  %xmm0,%xmm1
  mulsd  %xmm1,%xmm9
  addsd  (%r14),%xmm9
  movsd  %xmm9,(%r14)
  movsd  0x38(%rsp),%xmm4
  movsd  0x10(%rsp),%xmm1
  movapd %xmm1,%xmm8
  mulsd  0x18(%rbx),%xmm8
  movapd %xmm10,%xmm3
  mulsd  0x20(%rbx),%xmm3
  addsd  %xmm3,%xmm8
  movapd %xmm2,%xmm3
  mulsd  0x28(%rbx),%xmm3
  addsd  %xmm3,%xmm8
  movapd %xmm5,%xmm3
  subsd  %xmm4,%xmm3
  mulsd  %xmm3,%xmm8
  addsd  0x18(%r14),%xmm8
  movsd  %xmm8,0x18(%r14)
  movsd  0x40(%rsp),%xmm3
  movapd %xmm1,%xmm7
  mulsd  0x30(%rbx),%xmm7
  movapd %xmm11,%xmm6
  mulsd  0x38(%rbx),%xmm6
  addsd  %xmm6,%xmm7
  mulsd  0x40(%rbx),%xmm2
  addsd  %xmm2,%xmm7
  movapd %xmm5,%xmm2
  subsd  %xmm3,%xmm2
  mulsd  %xmm2,%xmm7
  addsd  0x30(%r14),%xmm7
  movsd  %xmm7,0x30(%r14)
  movsd  0x48(%rsp),%xmm6
  movapd %xmm1,%xmm2
  mulsd  0x48(%rbx),%xmm2
  mulsd  0x50(%rbx),%xmm11
  addsd  %xmm11,%xmm2
  mulsd  0x58(%rbx),%xmm10
  addsd  %xmm10,%xmm2
  subsd  %xmm6,%xmm5
  mulsd  %xmm5,%xmm2
  addsd  0x48(%r14),%xmm2
  movsd  %xmm2,0x48(%r14)
  movapd %xmm4,%xmm5
  subsd  %xmm0,%xmm5
  mulsd  0x60(%rbx),%xmm5
  movapd %xmm3,%xmm1
  subsd  %xmm0,%xmm1
  mulsd  0x68(%rbx),%xmm1
  addsd  %xmm1,%xmm5
  movapd %xmm6,%xmm1
  subsd  %xmm0,%xmm1
  mulsd  0x70(%rbx),%xmm1
  addsd  %xmm5,%xmm1
  divsd  0x30(%r12),%xmm1
  addsd  %xmm9,%xmm1
  movsd  %xmm1,(%r14)
  movapd %xmm0,%xmm5
  subsd  %xmm4,%xmm5
  mulsd  0x60(%rbx),%xmm5
  movapd %xmm3,%xmm1
  subsd  %xmm4,%xmm1
  mulsd  0x78(%rbx),%xmm1
  addsd  %xmm1,%xmm5
  movapd %xmm6,%xmm1
  subsd  %xmm4,%xmm1
  mulsd  0x80(%rbx),%xmm1
  addsd  %xmm5,%xmm1
  divsd  0x30(%r12),%xmm1
  addsd  %xmm8,%xmm1
  movsd  %xmm1,0x18(%r14)
  movapd %xmm0,%xmm5
  subsd  %xmm3,%xmm5
  mulsd  0x68(%rbx),%xmm5
  movapd %xmm4,%xmm1
  subsd  %xmm3,%xmm1
  mulsd  0x78(%rbx),%xmm1
  addsd  %xmm1,%xmm5
  movapd %xmm6,%xmm1
  subsd  %xmm3,%xmm1
  mulsd  0x88(%rbx),%xmm1
  addsd  %xmm5,%xmm1
  divsd  0x30(%r12),%xmm1
  addsd  %xmm7,%xmm1
  movsd  %xmm1,0x30(%r14)
  subsd  %xmm6,%xmm0
  movapd %xmm0,%xmm1
  mulsd  0x70(%rbx),%xmm1
  subsd  %xmm6,%xmm4
  mulsd  0x80(%rbx),%xmm4
  addsd  %xmm4,%xmm1
  subsd  %xmm6,%xmm3
  mulsd  0x88(%rbx),%xmm3
  movapd %xmm1,%xmm0
  addsd  %xmm3,%xmm0
  divsd  0x30(%r12),%xmm0
  addsd  %xmm2,%xmm0
  movsd  %xmm0,0x48(%r14)
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L3:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_label: D0
datatype: byte[8]

tool: {"D0": [0x00,0x00,0x00,0x00,0x00,0x00,0xb0,0xbf]}

assistant: ```c
void derivs_four(const double *y, double *dxdt, const double *p, const double *kij) {
  int i;
  double bm_factor[4], V[4];
  for (i = 0; i < 4; i++) {
    V[i] = y[i * 3];
    derivs_one(y + i * 3, dxdt + i * 3, p);
    bm_factor[i] = boltzmann(V[i], p[11], 1000.) / p[6];
  }
  dxdt[0] += (-0.0625 - V[0]) * (kij[0] * bm_factor[1] + kij[1] * bm_factor[2] + kij[2] * bm_factor[3]);
  dxdt[3] += (-0.0625 - V[1]) * (kij[3] * bm_factor[0] + kij[4] * bm_factor[2] + kij[5] * bm_factor[3]);
  dxdt[2 * 3] += (-0.0625 - V[2]) * (kij[6] * bm_factor[0] + kij[7] * bm_factor[1] + kij[8] * bm_factor[3]);
  dxdt[3 * 3] += (-0.0625 - V[3]) * (kij[9] * bm_factor[0] + kij[10] * bm_factor[1] + kij[11] * bm_factor[2]);
  dxdt[0] += (kij[12] * (V[1] - V[0]) + kij[13] * (V[2] - V[0]) + kij[14] * (V[3] - V[0])) / p[6];
  dxdt[3] += (kij[12] * (V[0] - V[1]) + kij[15] * (V[2] - V[1]) + kij[16] * (V[3] - V[1])) / p[6];
  dxdt[2 * 3] += (kij[13] * (V[0] - V[2]) + kij[15] * (V[1] - V[2]) + kij[17] * (V[3] - V[2])) / p[6];
  dxdt[3 * 3] += (kij[14] * (V[0] - V[3]) + kij[16] * (V[1] - V[3]) + kij[17] * (V[2] - V[3])) / p[6];
}
```