; LLVM IR from eyangch/competitive-programming :: BOI/2016 (bosses)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl" }
%"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl" = type { %"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl_data" }
%"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@vis = external dso_local global [5000 x i8], align 16
@graph = external dso_local global [5000 x %"class.std::vector"], align 16
@tree = external dso_local global [5000 x %"class.std::vector"], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_Z3dfsi(i32 noundef) #0

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 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 nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i8, align 1
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::queue", align 8
  %12 = alloca %"struct.std::pair", align 4
  %13 = alloca i32, align 4
  %14 = alloca ptr, align 8
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  %19 = alloca ptr, align 8
  %20 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %21 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %22 = alloca i32, align 4
  %23 = alloca %"struct.std::pair", align 4
  %24 = alloca %"struct.std::pair", align 4
  store i32 0, ptr %1, align 4
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %26

26:                                               ; preds = %48, %0
  %27 = load i32, ptr %2, align 4, !tbaa !5
  %28 = load i32, ptr @N, align 4, !tbaa !5
  %29 = icmp slt i32 %27, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %26
  store i32 2, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %51

31:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %33

33:                                               ; preds = %44, %31
  %34 = load i32, ptr %5, align 4, !tbaa !5
  %35 = load i32, ptr %4, align 4, !tbaa !5
  %36 = icmp slt i32 %34, %35
  br i1 %36, label %38, label %37

37:                                               ; preds = %33
  store i32 5, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %47

38:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  %39 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %40 = load i32, ptr %6, align 4, !tbaa !5
  %41 = sub nsw i32 %40, 1
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @graph, i64 0, i64 %42
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %43, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %44

44:                                               ; preds = %38
  %45 = load i32, ptr %5, align 4, !tbaa !5
  %46 = add nsw i32 %45, 1
  store i32 %46, ptr %5, align 4, !tbaa !5
  br label %33, !llvm.loop !9

47:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %48

48:                                               ; preds = %47
  %49 = load i32, ptr %2, align 4, !tbaa !5
  %50 = add nsw i32 %49, 1
  store i32 %50, ptr %2, align 4, !tbaa !5
  br label %26, !llvm.loop !11

51:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  store i32 1000000000, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %52

52:                                               ; preds = %173, %51
  %53 = load i32, ptr %8, align 4, !tbaa !5
  %54 = load i32, ptr @N, align 4, !tbaa !5
  %55 = icmp slt i32 %53, %54
  br i1 %55, label %57, label %56

56:                                               ; preds = %52
  store i32 8, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %178

57:                                               ; preds = %52
  %58 = load i32, ptr @N, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds i8, ptr @vis, i64 %59
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #7
  store i8 0, ptr %9, align 1, !tbaa !12
  call void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef @vis, ptr noundef %60, ptr noundef nonnull align 1 dereferenceable(1) %9)
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #7
  store i32 0, ptr %10, align 4, !tbaa !5
  br label %61

61:                                               ; preds = %70, %57
  %62 = load i32, ptr %10, align 4, !tbaa !5
  %63 = load i32, ptr @N, align 4, !tbaa !5
  %64 = icmp slt i32 %62, %63
  br i1 %64, label %66, label %65

65:                                               ; preds = %61
  store i32 11, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %73

66:                                               ; preds = %61
  %67 = load i32, ptr %10, align 4, !tbaa !5
  %68 = sext i32 %67 to i64
  %69 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @tree, i64 0, i64 %68
  call void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %69) #7
  br label %70

70:                                               ; preds = %66
  %71 = load i32, ptr %10, align 4, !tbaa !5
  %72 = add nsw i32 %71, 1
  store i32 %72, ptr %10, align 4, !tbaa !5
  br label %61, !llvm.loop !14

73:                                               ; preds = %65
  call void @llvm.lifetime.start.p0(i64 80, ptr %11) #7
  call void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %11)
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  store i32 -1, ptr %13, align 4, !tbaa !5
  invoke void @_ZNSt4pairIiiEC2IiRiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %12, ptr noundef nonnull align 4 dereferenceable(4) %13, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %74 unwind label %96

74:                                               ; preds = %73
  invoke void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %11, ptr noundef nonnull align 4 dereferenceable(8) %12)
          to label %75 unwind label %96

75:                                               ; preds = %74
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #7
  store i32 0, ptr %16, align 4, !tbaa !5
  br label %76

76:                                               ; preds = %152, %150, %75
  %77 = invoke noundef zeroext i1 @_ZNKSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %11)
          to label %78 unwind label %100

78:                                               ; preds = %76
  %79 = xor i1 %77, true
  br i1 %79, label %80, label %155

80:                                               ; preds = %78
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #7
  %81 = invoke noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %11)
          to label %82 unwind label %104

82:                                               ; preds = %80
  %83 = getelementptr inbounds %"struct.std::pair", ptr %81, i32 0, i32 1
  %84 = load i32, ptr %83, align 4, !tbaa !15
  store i32 %84, ptr %17, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #7
  %85 = invoke noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %11)
          to label %86 unwind label %108

86:                                               ; preds = %82
  %87 = getelementptr inbounds %"struct.std::pair", ptr %85, i32 0, i32 0
  %88 = load i32, ptr %87, align 4, !tbaa !17
  store i32 %88, ptr %18, align 4, !tbaa !5
  invoke void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %11)
          to label %89 unwind label %108

89:                                               ; preds = %86
  %90 = load i32, ptr %17, align 4, !tbaa !5
  %91 = sext i32 %90 to i64
  %92 = getelementptr inbounds [5000 x i8], ptr @vis, i64 0, i64 %91
  %93 = load i8, ptr %92, align 1, !tbaa !12, !range !18, !noundef !19
  %94 = trunc i8 %93 to i1
  br i1 %94, label %95, label %112

95:                                               ; preds = %89
  store i32 14, ptr %3, align 4
  br label %150, !llvm.loop !20

96:                                               ; preds = %74, %73
  %97 = landingpad { ptr, i32 }
          cleanup
  %98 = extractvalue { ptr, i32 } %97, 0
  store ptr %98, ptr %14, align 8
  %99 = extractvalue { ptr, i32 } %97, 1
  store i32 %99, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  br label %177

100:                                              ; preds = %76
  %101 = landingpad { ptr, i32 }
          cleanup
  %102 = extractvalue { ptr, i32 } %101, 0
  store ptr %102, ptr %14, align 8
  %103 = extractvalue { ptr, i32 } %101, 1
  store i32 %103, ptr %15, align 4
  br label %176

104:                                              ; preds = %80
  %105 = landingpad { ptr, i32 }
          cleanup
  %106 = extractvalue { ptr, i32 } %105, 0
  store ptr %106, ptr %14, align 8
  %107 = extractvalue { ptr, i32 } %105, 1
  store i32 %107, ptr %15, align 4
  br label %154

108:                                              ; preds = %118, %86, %82
  %109 = landingpad { ptr, i32 }
          cleanup
  %110 = extractvalue { ptr, i32 } %109, 0
  store ptr %110, ptr %14, align 8
  %111 = extractvalue { ptr, i32 } %109, 1
  store i32 %111, ptr %15, align 4
  br label %153

112:                                              ; preds = %89
  %113 = load i32, ptr %17, align 4, !tbaa !5
  %114 = sext i32 %113 to i64
  %115 = getelementptr inbounds [5000 x i8], ptr @vis, i64 0, i64 %114
  store i8 1, ptr %115, align 1, !tbaa !12
  %116 = load i32, ptr %18, align 4, !tbaa !5
  %117 = icmp ne i32 %116, -1
  br i1 %117, label %118, label %125

118:                                              ; preds = %112
  %119 = load i32, ptr %18, align 4, !tbaa !5
  %120 = sext i32 %119 to i64
  %121 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @tree, i64 0, i64 %120
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %121, ptr noundef nonnull align 4 dereferenceable(4) %17)
          to label %122 unwind label %108

122:                                              ; preds = %118
  %123 = load i32, ptr %16, align 4, !tbaa !5
  %124 = add nsw i32 %123, 1
  store i32 %124, ptr %16, align 4, !tbaa !5
  br label %125

125:                                              ; preds = %122, %112
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #7
  %126 = load i32, ptr %17, align 4, !tbaa !5
  %127 = sext i32 %126 to i64
  %128 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @graph, i64 0, i64 %127
  store ptr %128, ptr %19, align 8, !tbaa !21
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #7
  %129 = load ptr, ptr %19, align 8, !tbaa !21
  %130 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %129) #7
  %131 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %20, i32 0, i32 0
  store ptr %130, ptr %131, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %21) #7
  %132 = load ptr, ptr %19, align 8, !tbaa !21
  %133 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %132) #7
  %134 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %21, i32 0, i32 0
  store ptr %133, ptr %134, align 8
  br label %135

135:                                              ; preds = %143, %125
  %136 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %20, ptr noundef nonnull align 8 dereferenceable(8) %21) #7
  br i1 %136, label %138, label %137

137:                                              ; preds = %135
  store i32 16, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #7
  br label %149

138:                                              ; preds = %135
  call void @llvm.lifetime.start.p0(i64 4, ptr %22) #7
  %139 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %20) #7
  %140 = load i32, ptr %139, align 4, !tbaa !5
  store i32 %140, ptr %22, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %23) #7
  invoke void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %23, ptr noundef nonnull align 4 dereferenceable(4) %17, ptr noundef nonnull align 4 dereferenceable(4) %22)
          to label %141 unwind label %145

141:                                              ; preds = %138
  invoke void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %11, ptr noundef nonnull align 4 dereferenceable(8) %23)
          to label %142 unwind label %145

142:                                              ; preds = %141
  call void @llvm.lifetime.end.p0(i64 8, ptr %23) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %22) #7
  br label %143

143:                                              ; preds = %142
  %144 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %20) #7
  br label %135

145:                                              ; preds = %141, %138
  %146 = landingpad { ptr, i32 }
          cleanup
  %147 = extractvalue { ptr, i32 } %146, 0
  store ptr %147, ptr %14, align 8
  %148 = extractvalue { ptr, i32 } %146, 1
  store i32 %148, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %23) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %22) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #7
  br label %153

149:                                              ; preds = %137
  store i32 0, ptr %3, align 4
  br label %150

150:                                              ; preds = %149, %95
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  %151 = load i32, ptr %3, align 4
  switch i32 %151, label %188 [
    i32 0, label %152
    i32 14, label %76
  ]

152:                                              ; preds = %150
  br label %76, !llvm.loop !20

153:                                              ; preds = %145, %108
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  br label %154

154:                                              ; preds = %153, %104
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  br label %176

155:                                              ; preds = %78
  %156 = load i32, ptr %16, align 4, !tbaa !5
  %157 = load i32, ptr @N, align 4, !tbaa !5
  %158 = sub nsw i32 %157, 1
  %159 = icmp eq i32 %156, %158
  br i1 %159, label %160, label %172

160:                                              ; preds = %155
  call void @llvm.lifetime.start.p0(i64 8, ptr %24) #7
  %161 = load i32, ptr %8, align 4, !tbaa !5
  %162 = invoke i64 @_Z3dfsi(i32 noundef %161)
          to label %163 unwind label %168

163:                                              ; preds = %160
  store i64 %162, ptr %24, align 4
  %164 = getelementptr inbounds %"struct.std::pair", ptr %24, i32 0, i32 1
  %165 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %164)
          to label %166 unwind label %168

166:                                              ; preds = %163
  %167 = load i32, ptr %165, align 4, !tbaa !5
  store i32 %167, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %24) #7
  br label %172

168:                                              ; preds = %163, %160
  %169 = landingpad { ptr, i32 }
          cleanup
  %170 = extractvalue { ptr, i32 } %169, 0
  store ptr %170, ptr %14, align 8
  %171 = extractvalue { ptr, i32 } %169, 1
  store i32 %171, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %24) #7
  br label %176

172:                                              ; preds = %166, %155
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  call void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %11) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr %11) #7
  br label %173

173:                                              ; preds = %172
  %174 = load i32, ptr %8, align 4, !tbaa !5
  %175 = add nsw i32 %174, 1
  store i32 %175, ptr %8, align 4, !tbaa !5
  br label %52, !llvm.loop !23

176:                                              ; preds = %168, %154, %100
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  br label %177

177:                                              ; preds = %176, %96
  call void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %11) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %183

178:                                              ; preds = %56
  %179 = load i32, ptr %7, align 4, !tbaa !5
  %180 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %179)
  %181 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %180, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  %182 = load i32, ptr %1, align 4
  ret i32 %182

183:                                              ; preds = %177
  %184 = load ptr, ptr %14, align 8
  %185 = load i32, ptr %15, align 4
  %186 = insertvalue { ptr, i32 } poison, ptr %184, 0
  %187 = insertvalue { ptr, i32 } %186, i32 %185, 1
  resume { ptr, i32 } %187

188:                                              ; preds = %150
  unreachable
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiRiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #5

; 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)) #6

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 = { 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 #3 = { inlinehint 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 #4 = { 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 #5 = { "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 #6 = { 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 #7 = { 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"}
!11 = distinct !{!11, !10}
!12 = !{!13, !13, i64 0}
!13 = !{!"bool", !7, i64 0}
!14 = distinct !{!14, !10}
!15 = !{!16, !6, i64 4}
!16 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!17 = !{!16, !6, i64 0}
!18 = !{i8 0, i8 2}
!19 = !{}
!20 = distinct !{!20, !10}
!21 = !{!22, !22, i64 0}
!22 = !{!"any pointer", !7, i64 0}
!23 = distinct !{!23, !10}


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl" }
%"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl" = type { %"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl_data" }
%"struct.std::_Deque_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@vis = external dso_local global [5000 x i8], align 16
@graph = external dso_local global [5000 x %"class.std::vector"], align 16
@tree = external dso_local global [5000 x %"class.std::vector"], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_Z3dfsi(i32 noundef) 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: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 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 nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i8, align 1
  %7 = alloca %"class.std::queue", align 8
  %8 = alloca %"struct.std::pair", align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca i32, align 4
  %14 = alloca %"struct.std::pair", align 4
  %15 = alloca %"struct.std::pair", align 8
  %16 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  store i32 0, ptr %1, align 4, !tbaa !5
  %17 = load i32, ptr @N, align 4, !tbaa !5
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.lr.ph31, label %._crit_edge32.thread

._crit_edge32.thread:                             ; preds = %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  store i32 1000000000, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  br label %._crit_edge46

._crit_edge32:                                    ; preds = %._crit_edge
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  store i32 1000000000, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  store i32 0, ptr %5, align 4, !tbaa !5
  %19 = icmp sgt i32 %26, 0
  br i1 %19, label %.lr.ph45, label %._crit_edge46

.lr.ph45:                                         ; preds = %._crit_edge32
  %20 = getelementptr inbounds i8, ptr %15, i64 4
  br label %39

.lr.ph31:                                         ; preds = %0, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = icmp sgt i32 %22, 0
  br i1 %23, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph31
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %24 = load i32, ptr %1, align 4, !tbaa !5
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %1, align 4, !tbaa !5
  %26 = load i32, ptr @N, align 4, !tbaa !5
  %27 = icmp slt i32 %25, %26
  br i1 %27, label %.lr.ph31, label %._crit_edge32, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph31, %.lr.ph
  %.029 = phi i32 [ %33, %.lr.ph ], [ 0, %.lr.ph31 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  %28 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = add nsw i32 %29, -1
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @graph, i64 0, i64 %31
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %32, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  %33 = add nuw nsw i32 %.029, 1
  %34 = load i32, ptr %2, align 4, !tbaa !5
  %35 = icmp slt i32 %33, %34
  br i1 %35, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge46.loopexit:                           ; preds = %97
  %.pre48 = load i32, ptr %4, align 4, !tbaa !5
  br label %._crit_edge46

._crit_edge46:                                    ; preds = %._crit_edge32.thread, %._crit_edge46.loopexit, %._crit_edge32
  %36 = phi i32 [ %.pre48, %._crit_edge46.loopexit ], [ 1000000000, %._crit_edge32 ], [ 1000000000, %._crit_edge32.thread ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %36)
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %37, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  ret i32 0

39:                                               ; preds = %.lr.ph45, %97
  %40 = phi i32 [ %26, %.lr.ph45 ], [ %100, %97 ]
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds i8, ptr @vis, i64 %41
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #7
  store i8 0, ptr %6, align 1, !tbaa !12
  call void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef nonnull @vis, ptr noundef nonnull %42, ptr noundef nonnull align 1 dereferenceable(1) %6)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #7
  %43 = load i32, ptr @N, align 4, !tbaa !5
  %44 = icmp sgt i32 %43, 0
  br i1 %44, label %.lr.ph35, label %._crit_edge36

._crit_edge36:                                    ; preds = %.lr.ph35, %39
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %7) #7
  call void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #7
  store i32 -1, ptr %9, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiRiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %5)
  invoke void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %7, ptr noundef nonnull align 4 dereferenceable(8) %8)
          to label %49 unwind label %61

.lr.ph35:                                         ; preds = %39, %.lr.ph35
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph35 ], [ 0, %39 ]
  %45 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @tree, i64 0, i64 %indvars.iv
  call void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %45) #7
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %46 = load i32, ptr @N, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = icmp slt i64 %indvars.iv.next, %47
  br i1 %48, label %.lr.ph35, label %._crit_edge36, !llvm.loop !14

49:                                               ; preds = %._crit_edge36
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  %50 = call noundef zeroext i1 @_ZNKSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  br i1 %50, label %._crit_edge43, label %.lr.ph42

.lr.ph42:                                         ; preds = %49, %83
  %.01340 = phi i32 [ %.2, %83 ], [ 0, %49 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #7
  %51 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  %52 = getelementptr inbounds i8, ptr %51, i64 4
  %53 = load i32, ptr %52, align 4, !tbaa !15
  store i32 %53, ptr %10, align 4, !tbaa !5
  %54 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  %55 = load i32, ptr %54, align 4, !tbaa !17
  call void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  %56 = load i32, ptr %10, align 4, !tbaa !5
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds [5000 x i8], ptr @vis, i64 0, i64 %57
  %59 = load i8, ptr %58, align 1, !tbaa !12, !range !18, !noundef !19
  %60 = trunc nuw i8 %59 to i1
  br i1 %60, label %83, label %65, !llvm.loop !20

61:                                               ; preds = %._crit_edge36
  %62 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  br label %102

63:                                               ; preds = %66
  %64 = landingpad { ptr, i32 }
          cleanup
  br label %85

65:                                               ; preds = %.lr.ph42
  store i8 1, ptr %58, align 1, !tbaa !12
  %.not = icmp eq i32 %55, -1
  br i1 %.not, label %71, label %66

66:                                               ; preds = %65
  %67 = sext i32 %55 to i64
  %68 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @tree, i64 0, i64 %67
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %68, ptr noundef nonnull align 4 dereferenceable(4) %10)
          to label %69 unwind label %63

69:                                               ; preds = %66
  %70 = add nsw i32 %.01340, 1
  %.pre = load i32, ptr %10, align 4, !tbaa !5
  %.pre49 = sext i32 %.pre to i64
  br label %71

71:                                               ; preds = %69, %65
  %.pre-phi = phi i64 [ %.pre49, %69 ], [ %57, %65 ]
  %.1 = phi i32 [ %70, %69 ], [ %.01340, %65 ]
  %72 = getelementptr inbounds [5000 x %"class.std::vector"], ptr @graph, i64 0, i64 %.pre-phi
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #7
  %73 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %72) #7
  store ptr %73, ptr %11, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %12) #7
  %74 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %72) #7
  store ptr %74, ptr %12, align 8
  %75 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #7
  br i1 %75, label %.lr.ph38, label %._crit_edge39

._crit_edge39:                                    ; preds = %78, %71
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  br label %83

.lr.ph38:                                         ; preds = %71, %78
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %13) #7
  %76 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  %77 = load i32, ptr %76, align 4, !tbaa !5
  store i32 %77, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %14) #7
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %14, ptr noundef nonnull align 4 dereferenceable(4) %10, ptr noundef nonnull align 4 dereferenceable(4) %13)
  invoke void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %7, ptr noundef nonnull align 4 dereferenceable(8) %14)
          to label %78 unwind label %81

78:                                               ; preds = %.lr.ph38
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %14) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %13) #7
  %79 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  %80 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #7
  br i1 %80, label %.lr.ph38, label %._crit_edge39

81:                                               ; preds = %.lr.ph38
  %82 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %14) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %13) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  br label %85

83:                                               ; preds = %.lr.ph42, %._crit_edge39
  %.2 = phi i32 [ %.1, %._crit_edge39 ], [ %.01340, %.lr.ph42 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #7
  %84 = call noundef zeroext i1 @_ZNKSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  br i1 %84, label %._crit_edge43, label %.lr.ph42

85:                                               ; preds = %81, %63
  %.pn = phi { ptr, i32 } [ %82, %81 ], [ %64, %63 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #7
  br label %102

._crit_edge43:                                    ; preds = %83, %49
  %.013.lcssa = phi i32 [ 0, %49 ], [ %.2, %83 ]
  %86 = load i32, ptr @N, align 4, !tbaa !5
  %87 = add nsw i32 %86, -1
  %88 = icmp eq i32 %.013.lcssa, %87
  br i1 %88, label %89, label %97

89:                                               ; preds = %._crit_edge43
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %15) #7
  %90 = load i32, ptr %5, align 4, !tbaa !5
  %91 = invoke i64 @_Z3dfsi(i32 noundef %90)
          to label %92 unwind label %95

92:                                               ; preds = %89
  store i64 %91, ptr %15, align 8
  %93 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %20)
  %94 = load i32, ptr %93, align 4, !tbaa !5
  store i32 %94, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %15) #7
  br label %97

95:                                               ; preds = %89
  %96 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %15) #7
  br label %102

97:                                               ; preds = %92, %._crit_edge43
  call void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %7) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %7) #7
  %98 = load i32, ptr %5, align 4, !tbaa !5
  %99 = add nsw i32 %98, 1
  store i32 %99, ptr %5, align 4, !tbaa !5
  %100 = load i32, ptr @N, align 4, !tbaa !5
  %101 = icmp slt i32 %99, %100
  br i1 %101, label %39, label %._crit_edge46.loopexit, !llvm.loop !21

102:                                              ; preds = %85, %95, %61
  %.pn.pn.pn = phi { ptr, i32 } [ %62, %61 ], [ %.pn, %85 ], [ %96, %95 ]
  call void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %7) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  resume { ptr, i32 } %.pn.pn.pn
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiRiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueISt4pairIiiESt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #5

; 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)) #6

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 = { 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 #3 = { inlinehint 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 #4 = { 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 #5 = { "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 #6 = { 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 #7 = { 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"}
!11 = distinct !{!11, !10}
!12 = !{!13, !13, i64 0}
!13 = !{!"bool", !7, i64 0}
!14 = distinct !{!14, !10}
!15 = !{!16, !6, i64 4}
!16 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!17 = !{!16, !6, i64 0}
!18 = !{i8 0, i8 2}
!19 = !{}
!20 = distinct !{!20, !10}
!21 = distinct !{!21, !10}


; Effective O3 passes: BDCEPass,CorrelatedValuePropagationPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass