#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ r1(int /*<<< orphan*/);
int /*<<< orphan*/ r10(int /*<<< orphan*/);
int /*<<< orphan*/ r11(int /*<<< orphan*/);
int /*<<< orphan*/ r12(int /*<<< orphan*/);
int /*<<< orphan*/ r13(int /*<<< orphan*/);
int /*<<< orphan*/ r14(int /*<<< orphan*/);
int /*<<< orphan*/ r15(int /*<<< orphan*/);
int /*<<< orphan*/ r16(int /*<<< orphan*/);
int /*<<< orphan*/ r17(int /*<<< orphan*/);
int /*<<< orphan*/ r2(int /*<<< orphan*/);
int /*<<< orphan*/ r3(int /*<<< orphan*/);
int /*<<< orphan*/ r4(int /*<<< orphan*/);
int /*<<< orphan*/ r5(int /*<<< orphan*/);
int /*<<< orphan*/ r6(int /*<<< orphan*/);
int /*<<< orphan*/ r7(int /*<<< orphan*/);
int /*<<< orphan*/ r8(int /*<<< orphan*/);
int /*<<< orphan*/ r9(int /*<<< orphan*/);
int /*<<< orphan*/ w1(int /*<<< orphan*/);
int /*<<< orphan*/ w2(int /*<<< orphan*/);
int /*<<< orphan*/ w3(int /*<<< orphan*/);
int main() {
__CPROVER_ASYNC_0:
  w1(0);
__CPROVER_ASYNC_1:
  w2(0);
__CPROVER_ASYNC_2:
  w3(0);
__CPROVER_ASYNC_3:
  r1(0);
__CPROVER_ASYNC_4:
  r2(0);
__CPROVER_ASYNC_5:
  r3(0);
__CPROVER_ASYNC_6:
  r4(0);
__CPROVER_ASYNC_7:
  r5(0);
__CPROVER_ASYNC_8:
  r6(0);
__CPROVER_ASYNC_9:
  r7(0);
__CPROVER_ASYNC_10:
  r8(0);
__CPROVER_ASYNC_11:
  r9(0);
__CPROVER_ASYNC_12:
  r10(0);
__CPROVER_ASYNC_13:
  r11(0);
__CPROVER_ASYNC_14:
  r12(0);
__CPROVER_ASYNC_15:
  r13(0);
__CPROVER_ASYNC_16:
  r14(0);
__CPROVER_ASYNC_17:
  r15(0);
__CPROVER_ASYNC_18:
  r16(0);
__CPROVER_ASYNC_19:
  r17(0);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
xor    %edi,%edi
call   10b0 <w1@plt>
xor    %edi,%edi
call   1150 <w2@plt>
xor    %edi,%edi
call   10c0 <w3@plt>
xor    %edi,%edi
call   1160 <r1@plt>
xor    %edi,%edi
call   10d0 <r2@plt>
xor    %edi,%edi
call   1030 <r3@plt>
xor    %edi,%edi
call   10f0 <r4@plt>
xor    %edi,%edi
call   1050 <r5@plt>
xor    %edi,%edi
call   10e0 <r6@plt>
xor    %edi,%edi
call   1040 <r7@plt>
xor    %edi,%edi
call   1100 <r8@plt>
xor    %edi,%edi
call   1060 <r9@plt>
xor    %edi,%edi
call   1110 <r10@plt>
xor    %edi,%edi
call   1090 <r11@plt>
xor    %edi,%edi
call   1120 <r12@plt>
xor    %edi,%edi
call   1070 <r13@plt>
xor    %edi,%edi
call   1130 <r14@plt>
xor    %edi,%edi
call   10a0 <r15@plt>
xor    %edi,%edi
call   1140 <r16@plt>
xor    %edi,%edi
call   1080 <r17@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %edi,%edi
call   10b0 <w1@plt>
xor    %edi,%edi
call   1150 <w2@plt>
xor    %edi,%edi
call   10c0 <w3@plt>
xor    %edi,%edi
call   1160 <r1@plt>
xor    %edi,%edi
call   10d0 <r2@plt>
xor    %edi,%edi
call   1030 <r3@plt>
xor    %edi,%edi
call   10f0 <r4@plt>
xor    %edi,%edi
call   1050 <r5@plt>
xor    %edi,%edi
call   10e0 <r6@plt>
xor    %edi,%edi
call   1040 <r7@plt>
xor    %edi,%edi
call   1100 <r8@plt>
xor    %edi,%edi
call   1060 <r9@plt>
xor    %edi,%edi
call   1110 <r10@plt>
xor    %edi,%edi
call   1090 <r11@plt>
xor    %edi,%edi
call   1120 <r12@plt>
xor    %edi,%edi
call   1070 <r13@plt>
xor    %edi,%edi
call   1130 <r14@plt>
xor    %edi,%edi
call   10a0 <r15@plt>
xor    %edi,%edi
call   1140 <r16@plt>
xor    %edi,%edi
call   1080 <r17@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
br label %2
2: ; preds = %0
%3 = call i32 @w1(i32 0)
br label %4
4: ; preds = %2
%5 = call i32 @w2(i32 0)
br label %6
6: ; preds = %4
%7 = call i32 @w3(i32 0)
br label %8
8: ; preds = %6
%9 = call i32 @r1(i32 0)
br label %10
10: ; preds = %8
%11 = call i32 @r2(i32 0)
br label %12
12: ; preds = %10
%13 = call i32 @r3(i32 0)
br label %14
14: ; preds = %12
%15 = call i32 @r4(i32 0)
br label %16
16: ; preds = %14
%17 = call i32 @r5(i32 0)
br label %18
18: ; preds = %16
%19 = call i32 @r6(i32 0)
br label %20
20: ; preds = %18
%21 = call i32 @r7(i32 0)
br label %22
22: ; preds = %20
%23 = call i32 @r8(i32 0)
br label %24
24: ; preds = %22
%25 = call i32 @r9(i32 0)
br label %26
26: ; preds = %24
%27 = call i32 @r10(i32 0)
br label %28
28: ; preds = %26
%29 = call i32 @r11(i32 0)
br label %30
30: ; preds = %28
%31 = call i32 @r12(i32 0)
br label %32
32: ; preds = %30
%33 = call i32 @r13(i32 0)
br label %34
34: ; preds = %32
%35 = call i32 @r14(i32 0)
br label %36
36: ; preds = %34
%37 = call i32 @r15(i32 0)
br label %38
38: ; preds = %36
%39 = call i32 @r16(i32 0)
br label %40
40: ; preds = %38
%41 = call i32 @r17(i32 0)
ret i32 0
}

LLVM IR (-O2):
define i32 @main() {
%1 = tail call i32 @w1(i32 0)
%2 = tail call i32 @w2(i32 0)
%3 = tail call i32 @w3(i32 0)
%4 = tail call i32 @r1(i32 0)
%5 = tail call i32 @r2(i32 0)
%6 = tail call i32 @r3(i32 0)
%7 = tail call i32 @r4(i32 0)
%8 = tail call i32 @r5(i32 0)
%9 = tail call i32 @r6(i32 0)
%10 = tail call i32 @r7(i32 0)
%11 = tail call i32 @r8(i32 0)
%12 = tail call i32 @r9(i32 0)
%13 = tail call i32 @r10(i32 0)
%14 = tail call i32 @r11(i32 0)
%15 = tail call i32 @r12(i32 0)
%16 = tail call i32 @r13(i32 0)
%17 = tail call i32 @r14(i32 0)
%18 = tail call i32 @r15(i32 0)
%19 = tail call i32 @r16(i32 0)
%20 = tail call i32 @r17(i32 0)
ret i32 0
}