; LLVM IR from TheAlgorithms/C-Plus-Plus :: backtracking (magic_sequence)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<std::vector<unsigned int>, std::allocator<std::vector<unsigned int>>>::_List_impl" }
%"struct.std::__cxx11::_List_base<std::vector<unsigned int>, std::allocator<std::vector<unsigned int>>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"struct.std::_List_iterator" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [18 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12backtracking14magic_sequence5printERKSt6vectorIjSaIjEE(ptr noundef nonnull align 8 dereferenceable(24)) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEj(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12backtracking14magic_sequence5solveEPSt6vectorIjSaIjEEPNSt7__cxx114listIS3_SaIS3_EEEj(ptr noundef, ptr noundef, i32 noundef) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::__cxx11::list", align 8
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca %"struct.std::_List_iterator", align 8
  %11 = alloca %"struct.std::_List_iterator", align 8
  %12 = alloca ptr, align 8
  store i32 0, ptr %1, align 4
  call void @_ZL4testv()
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 2, ptr %2, align 4, !tbaa !5
  br label %13

13:                                               ; preds = %54, %0
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = icmp ult i32 %14, 12
  br i1 %15, label %17, label %16

16:                                               ; preds = %13
  store i32 2, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %59

17:                                               ; preds = %13
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEj(ptr noundef nonnull align 8 dereferenceable(8) %18, i32 noundef %19)
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %20, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #5
  call void @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #5
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = zext i32 %22 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #5
  call void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  invoke void @_ZNSt6vectorIjSaIjEEC2EmRKjRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %23, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %24 unwind label %35

24:                                               ; preds = %17
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  invoke void @_ZN12backtracking14magic_sequence5solveEPSt6vectorIjSaIjEEPNSt7__cxx114listIS3_SaIS3_EEEj(ptr noundef %5, ptr noundef %4, i32 noundef 0)
          to label %25 unwind label %39

25:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  store ptr %4, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %26 = load ptr, ptr %9, align 8, !tbaa !9
  %27 = call ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %26) #5
  %28 = getelementptr inbounds %"struct.std::_List_iterator", ptr %10, i32 0, i32 0
  store ptr %27, ptr %28, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %29 = load ptr, ptr %9, align 8, !tbaa !9
  %30 = call ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %29) #5
  %31 = getelementptr inbounds %"struct.std::_List_iterator", ptr %11, i32 0, i32 0
  store ptr %30, ptr %31, align 8
  br label %32

32:                                               ; preds = %47, %25
  %33 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorISt6vectorIjSaIjEEES5_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #5
  br i1 %33, label %43, label %34

34:                                               ; preds = %32
  store i32 5, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %53

35:                                               ; preds = %17
  %36 = landingpad { ptr, i32 }
          cleanup
  %37 = extractvalue { ptr, i32 } %36, 0
  store ptr %37, ptr %7, align 8
  %38 = extractvalue { ptr, i32 } %36, 1
  store i32 %38, ptr %8, align 4
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  br label %58

39:                                               ; preds = %24
  %40 = landingpad { ptr, i32 }
          cleanup
  %41 = extractvalue { ptr, i32 } %40, 0
  store ptr %41, ptr %7, align 8
  %42 = extractvalue { ptr, i32 } %40, 1
  store i32 %42, ptr %8, align 4
  br label %57

43:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %44 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNKSt14_List_iteratorISt6vectorIjSaIjEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  store ptr %44, ptr %12, align 8, !tbaa !9
  %45 = load ptr, ptr %12, align 8, !tbaa !9
  invoke void @_ZN12backtracking14magic_sequence5printERKSt6vectorIjSaIjEE(ptr noundef nonnull align 8 dereferenceable(24) %45)
          to label %46 unwind label %49

46:                                               ; preds = %43
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  br label %47

47:                                               ; preds = %46
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorISt6vectorIjSaIjEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  br label %32

49:                                               ; preds = %43
  %50 = landingpad { ptr, i32 }
          cleanup
  %51 = extractvalue { ptr, i32 } %50, 0
  store ptr %51, ptr %7, align 8
  %52 = extractvalue { ptr, i32 } %50, 1
  store i32 %52, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %57

53:                                               ; preds = %34
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #5
  call void @_ZNSt7__cxx1110_List_baseISt6vectorIjSaIjEESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #5
  br label %54

54:                                               ; preds = %53
  %55 = load i32, ptr %2, align 4, !tbaa !5
  %56 = add i32 %55, 1
  store i32 %56, ptr %2, align 4, !tbaa !5
  br label %13, !llvm.loop !11

57:                                               ; preds = %49, %39
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  br label %58

58:                                               ; preds = %57, %35
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #5
  call void @_ZNSt7__cxx1110_List_baseISt6vectorIjSaIjEESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %60

59:                                               ; preds = %16
  ret i32 0

60:                                               ; preds = %58
  %61 = load ptr, ptr %7, align 8
  %62 = load i32, ptr %8, align 4
  %63 = insertvalue { ptr, i32 } poison, ptr %61, 0
  %64 = insertvalue { ptr, i32 } %63, i32 %62, 1
  resume { ptr, i32 } %64
}

; Function Attrs: mustprogress uwtable
declare hidden void @_ZL4testv() #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEEC2EmRKjRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorISt6vectorIjSaIjEEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNKSt14_List_iteratorISt6vectorIjSaIjEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorISt6vectorIjSaIjEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1110_List_baseISt6vectorIjSaIjEESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<std::vector<unsigned int>, std::allocator<std::vector<unsigned int>>>::_List_impl" }
%"struct.std::__cxx11::_List_base<std::vector<unsigned int>, std::allocator<std::vector<unsigned int>>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"struct.std::_List_iterator" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [18 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12backtracking14magic_sequence5printERKSt6vectorIjSaIjEE(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEj(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12backtracking14magic_sequence5solveEPSt6vectorIjSaIjEEPNSt7__cxx114listIS3_SaIS3_EEEj(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::list", align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca %"struct.std::_List_iterator", align 8
  %6 = alloca %"struct.std::_List_iterator", align 8
  tail call void @_ZL4testv()
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  store i32 2, ptr %1, align 4, !tbaa !5
  br label %8

7:                                                ; preds = %._crit_edge
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  ret i32 0

8:                                                ; preds = %0, %._crit_edge
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEj(ptr noundef nonnull align 8 dereferenceable(8) %9, i32 noundef %10)
  %12 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #5
  call void @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #5
  %13 = load i32, ptr %1, align 4, !tbaa !5
  %14 = zext i32 %13 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #5
  call void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  invoke void @_ZNSt6vectorIjSaIjEEC2EmRKjRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %14, ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %15 unwind label %23

15:                                               ; preds = %8
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #5
  invoke void @_ZN12backtracking14magic_sequence5solveEPSt6vectorIjSaIjEEPNSt7__cxx114listIS3_SaIS3_EEEj(ptr noundef nonnull %3, ptr noundef nonnull %2, i32 noundef 0)
          to label %16 unwind label %25

16:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %17 = call ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  store ptr %17, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  %18 = call ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  store ptr %18, ptr %6, align 8
  %19 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorISt6vectorIjSaIjEEES5_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  br i1 %19, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %28, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  call void @_ZNSt7__cxx1110_List_baseISt6vectorIjSaIjEESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  %20 = load i32, ptr %1, align 4, !tbaa !5
  %21 = add i32 %20, 1
  store i32 %21, ptr %1, align 4, !tbaa !5
  %22 = icmp ult i32 %21, 12
  br i1 %22, label %8, label %7, !llvm.loop !9

23:                                               ; preds = %8
  %24 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #5
  br label %34

25:                                               ; preds = %15
  %26 = landingpad { ptr, i32 }
          cleanup
  br label %33

.lr.ph:                                           ; preds = %16, %28
  %27 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNKSt14_List_iteratorISt6vectorIjSaIjEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  invoke void @_ZN12backtracking14magic_sequence5printERKSt6vectorIjSaIjEE(ptr noundef nonnull align 8 dereferenceable(24) %27)
          to label %28 unwind label %31

28:                                               ; preds = %.lr.ph
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorISt6vectorIjSaIjEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %30 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorISt6vectorIjSaIjEEES5_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  br i1 %30, label %.lr.ph, label %._crit_edge

31:                                               ; preds = %.lr.ph
  %32 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br label %33

33:                                               ; preds = %31, %25
  %.pn = phi { ptr, i32 } [ %32, %31 ], [ %26, %25 ]
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  br label %34

34:                                               ; preds = %33, %23
  %.pn.pn = phi { ptr, i32 } [ %.pn, %33 ], [ %24, %23 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  call void @_ZNSt7__cxx1110_List_baseISt6vectorIjSaIjEESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress uwtable
declare hidden void @_ZL4testv() local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEEC2EmRKjRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listISt6vectorIjSaIjEESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorISt6vectorIjSaIjEEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNKSt14_List_iteratorISt6vectorIjSaIjEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorISt6vectorIjSaIjEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1110_List_baseISt6vectorIjSaIjEESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass