; LLVM IR from Py-Contributors/AlgorithmsAndDataStructure :: C++/Backtracking (ratInAMaze)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::initializer_list" = type { ptr, i64 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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::initializer_list.5" = type { ptr, i64 }
%"class.std::allocator.2" = type { i8 }
%"class.std::allocator" = type { i8 }
%class.Solution = type { i8 }
%"class.std::vector.6" = type { %"struct.std::_Vector_base.7" }
%"struct.std::_Vector_base.7" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::initializer_list", align 8
  %5 = alloca [4 x %"class.std::vector.0"], align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::initializer_list.5", align 8
  %8 = alloca [4 x i32], align 4
  %9 = alloca %"class.std::allocator.2", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::initializer_list.5", align 8
  %13 = alloca [4 x i32], align 4
  %14 = alloca %"class.std::allocator.2", align 1
  %15 = alloca %"class.std::initializer_list.5", align 8
  %16 = alloca [4 x i32], align 4
  %17 = alloca %"class.std::allocator.2", align 1
  %18 = alloca %"class.std::initializer_list.5", align 8
  %19 = alloca [4 x i32], align 4
  %20 = alloca %"class.std::allocator.2", align 1
  %21 = alloca i1, align 1
  %22 = alloca %"class.std::allocator", align 1
  %23 = alloca %class.Solution, align 1
  %24 = alloca %"class.std::vector.6", align 8
  %25 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 4, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 96, ptr %5) #6
  store i1 true, ptr %21, align 1
  store ptr %5, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %8) #6
  store i32 1, ptr %8, align 4, !tbaa !5
  %26 = getelementptr inbounds i32, ptr %8, i64 1
  store i32 0, ptr %26, align 4, !tbaa !5
  %27 = getelementptr inbounds i32, ptr %8, i64 2
  store i32 0, ptr %27, align 4, !tbaa !5
  %28 = getelementptr inbounds i32, ptr %8, i64 3
  store i32 0, ptr %28, align 4, !tbaa !5
  %29 = getelementptr inbounds %"class.std::initializer_list.5", ptr %7, i32 0, i32 0
  store ptr %8, ptr %29, align 8, !tbaa !9
  %30 = getelementptr inbounds %"class.std::initializer_list.5", ptr %7, i32 0, i32 1
  store i64 4, ptr %30, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  %31 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8
  %33 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 1
  %34 = load i64, ptr %33, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr %32, i64 %34, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %35 unwind label %90

35:                                               ; preds = %0
  %36 = getelementptr inbounds %"class.std::vector.0", ptr %5, i64 1
  store ptr %36, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %13) #6
  store i32 1, ptr %13, align 4, !tbaa !5
  %37 = getelementptr inbounds i32, ptr %13, i64 1
  store i32 1, ptr %37, align 4, !tbaa !5
  %38 = getelementptr inbounds i32, ptr %13, i64 2
  store i32 0, ptr %38, align 4, !tbaa !5
  %39 = getelementptr inbounds i32, ptr %13, i64 3
  store i32 1, ptr %39, align 4, !tbaa !5
  %40 = getelementptr inbounds %"class.std::initializer_list.5", ptr %12, i32 0, i32 0
  store ptr %13, ptr %40, align 8, !tbaa !9
  %41 = getelementptr inbounds %"class.std::initializer_list.5", ptr %12, i32 0, i32 1
  store i64 4, ptr %41, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  %42 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 0
  %43 = load ptr, ptr %42, align 8
  %44 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 1
  %45 = load i64, ptr %44, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %36, ptr %43, i64 %45, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %46 unwind label %94

46:                                               ; preds = %35
  %47 = getelementptr inbounds %"class.std::vector.0", ptr %5, i64 2
  store ptr %47, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %16) #6
  store i32 1, ptr %16, align 4, !tbaa !5
  %48 = getelementptr inbounds i32, ptr %16, i64 1
  store i32 1, ptr %48, align 4, !tbaa !5
  %49 = getelementptr inbounds i32, ptr %16, i64 2
  store i32 0, ptr %49, align 4, !tbaa !5
  %50 = getelementptr inbounds i32, ptr %16, i64 3
  store i32 0, ptr %50, align 4, !tbaa !5
  %51 = getelementptr inbounds %"class.std::initializer_list.5", ptr %15, i32 0, i32 0
  store ptr %16, ptr %51, align 8, !tbaa !9
  %52 = getelementptr inbounds %"class.std::initializer_list.5", ptr %15, i32 0, i32 1
  store i64 4, ptr %52, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  %53 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 0
  %54 = load ptr, ptr %53, align 8
  %55 = getelementptr inbounds { ptr, i64 }, ptr %15, i32 0, i32 1
  %56 = load i64, ptr %55, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %47, ptr %54, i64 %56, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %57 unwind label %98

57:                                               ; preds = %46
  %58 = getelementptr inbounds %"class.std::vector.0", ptr %5, i64 3
  store ptr %58, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %19) #6
  store i32 0, ptr %19, align 4, !tbaa !5
  %59 = getelementptr inbounds i32, ptr %19, i64 1
  store i32 1, ptr %59, align 4, !tbaa !5
  %60 = getelementptr inbounds i32, ptr %19, i64 2
  store i32 1, ptr %60, align 4, !tbaa !5
  %61 = getelementptr inbounds i32, ptr %19, i64 3
  store i32 1, ptr %61, align 4, !tbaa !5
  %62 = getelementptr inbounds %"class.std::initializer_list.5", ptr %18, i32 0, i32 0
  store ptr %19, ptr %62, align 8, !tbaa !9
  %63 = getelementptr inbounds %"class.std::initializer_list.5", ptr %18, i32 0, i32 1
  store i64 4, ptr %63, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %20) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #6
  %64 = getelementptr inbounds { ptr, i64 }, ptr %18, i32 0, i32 0
  %65 = load ptr, ptr %64, align 8
  %66 = getelementptr inbounds { ptr, i64 }, ptr %18, i32 0, i32 1
  %67 = load i64, ptr %66, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %58, ptr %65, i64 %67, ptr noundef nonnull align 1 dereferenceable(1) %20)
          to label %68 unwind label %102

68:                                               ; preds = %57
  store i1 false, ptr %21, align 1
  %69 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 0
  store ptr %5, ptr %69, align 8, !tbaa !14
  %70 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 1
  store i64 4, ptr %70, align 8, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 1, ptr %22) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #6
  %71 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 0
  %72 = load ptr, ptr %71, align 8
  %73 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 1
  %74 = load i64, ptr %73, align 8
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr %72, i64 %74, ptr noundef nonnull align 1 dereferenceable(1) %22)
          to label %75 unwind label %106

75:                                               ; preds = %68
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #6
  %76 = getelementptr inbounds [4 x %"class.std::vector.0"], ptr %5, i32 0, i32 0
  %77 = getelementptr inbounds %"class.std::vector.0", ptr %76, i64 4
  br label %78

78:                                               ; preds = %78, %75
  %79 = phi ptr [ %77, %75 ], [ %80, %78 ]
  %80 = getelementptr inbounds %"class.std::vector.0", ptr %79, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %80) #6
  %81 = icmp eq ptr %80, %76
  br i1 %81, label %82, label %78

82:                                               ; preds = %78
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %20) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %19) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %16) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %23) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr %24) #6
  %83 = load i32, ptr %2, align 4, !tbaa !5
  invoke void @_ZN8Solution8findPathB5cxx11ERSt6vectorIS0_IiSaIiEESaIS2_EEi(ptr dead_on_unwind writable sret(%"class.std::vector.6") align 8 %24, ptr noundef nonnull align 1 dereferenceable(1) %23, ptr noundef nonnull align 8 dereferenceable(24) %3, i32 noundef %83)
          to label %84 unwind label %131

84:                                               ; preds = %82
  %85 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %24) #6
  %86 = icmp eq i64 %85, 0
  br i1 %86, label %87, label %139

87:                                               ; preds = %84
  %88 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
          to label %89 unwind label %135

89:                                               ; preds = %87
  br label %162

90:                                               ; preds = %0
  %91 = landingpad { ptr, i32 }
          cleanup
  %92 = extractvalue { ptr, i32 } %91, 0
  store ptr %92, ptr %10, align 8
  %93 = extractvalue { ptr, i32 } %91, 1
  store i32 %93, ptr %11, align 4
  br label %120

94:                                               ; preds = %35
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %10, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %11, align 4
  br label %119

98:                                               ; preds = %46
  %99 = landingpad { ptr, i32 }
          cleanup
  %100 = extractvalue { ptr, i32 } %99, 0
  store ptr %100, ptr %10, align 8
  %101 = extractvalue { ptr, i32 } %99, 1
  store i32 %101, ptr %11, align 4
  br label %118

102:                                              ; preds = %57
  %103 = landingpad { ptr, i32 }
          cleanup
  %104 = extractvalue { ptr, i32 } %103, 0
  store ptr %104, ptr %10, align 8
  %105 = extractvalue { ptr, i32 } %103, 1
  store i32 %105, ptr %11, align 4
  br label %117

106:                                              ; preds = %68
  %107 = landingpad { ptr, i32 }
          cleanup
  %108 = extractvalue { ptr, i32 } %107, 0
  store ptr %108, ptr %10, align 8
  %109 = extractvalue { ptr, i32 } %107, 1
  store i32 %109, ptr %11, align 4
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %22) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #6
  %110 = getelementptr inbounds [4 x %"class.std::vector.0"], ptr %5, i32 0, i32 0
  %111 = getelementptr inbounds %"class.std::vector.0", ptr %110, i64 4
  br label %112

112:                                              ; preds = %112, %106
  %113 = phi ptr [ %111, %106 ], [ %114, %112 ]
  %114 = getelementptr inbounds %"class.std::vector.0", ptr %113, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %114) #6
  %115 = icmp eq ptr %114, %110
  br i1 %115, label %116, label %112

116:                                              ; preds = %112
  br label %117

117:                                              ; preds = %116, %102
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %20) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %20) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %19) #6
  br label %118

118:                                              ; preds = %117, %98
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %16) #6
  br label %119

119:                                              ; preds = %118, %94
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #6
  br label %120

120:                                              ; preds = %119, %90
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #6
  %121 = load i1, ptr %21, align 1
  br i1 %121, label %122, label %130

122:                                              ; preds = %120
  %123 = load ptr, ptr %6, align 8
  %124 = icmp eq ptr %5, %123
  br i1 %124, label %129, label %125

125:                                              ; preds = %125, %122
  %126 = phi ptr [ %123, %122 ], [ %127, %125 ]
  %127 = getelementptr inbounds %"class.std::vector.0", ptr %126, i64 -1
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %127) #6
  %128 = icmp eq ptr %127, %5
  br i1 %128, label %129, label %125

129:                                              ; preds = %125, %122
  br label %130

130:                                              ; preds = %129, %120
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #6
  br label %168

131:                                              ; preds = %82
  %132 = landingpad { ptr, i32 }
          cleanup
  %133 = extractvalue { ptr, i32 } %132, 0
  store ptr %133, ptr %10, align 8
  %134 = extractvalue { ptr, i32 } %132, 1
  store i32 %134, ptr %11, align 4
  br label %167

135:                                              ; preds = %162, %87
  %136 = landingpad { ptr, i32 }
          cleanup
  %137 = extractvalue { ptr, i32 } %136, 0
  store ptr %137, ptr %10, align 8
  %138 = extractvalue { ptr, i32 } %136, 1
  store i32 %138, ptr %11, align 4
  br label %166

139:                                              ; preds = %84
  call void @llvm.lifetime.start.p0(i64 4, ptr %25) #6
  store i32 0, ptr %25, align 4, !tbaa !5
  br label %140

140:                                              ; preds = %154, %139
  %141 = load i32, ptr %25, align 4, !tbaa !5
  %142 = sext i32 %141 to i64
  %143 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %24) #6
  %144 = icmp ult i64 %142, %143
  br i1 %144, label %146, label %145

145:                                              ; preds = %140
  call void @llvm.lifetime.end.p0(i64 4, ptr %25) #6
  br label %161

146:                                              ; preds = %140
  %147 = load i32, ptr %25, align 4, !tbaa !5
  %148 = sext i32 %147 to i64
  %149 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %24, i64 noundef %148) #6
  %150 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %149)
          to label %151 unwind label %157

151:                                              ; preds = %146
  %152 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %150, ptr noundef @.str)
          to label %153 unwind label %157

153:                                              ; preds = %151
  br label %154

154:                                              ; preds = %153
  %155 = load i32, ptr %25, align 4, !tbaa !5
  %156 = add nsw i32 %155, 1
  store i32 %156, ptr %25, align 4, !tbaa !5
  br label %140, !llvm.loop !17

157:                                              ; preds = %151, %146
  %158 = landingpad { ptr, i32 }
          cleanup
  %159 = extractvalue { ptr, i32 } %158, 0
  store ptr %159, ptr %10, align 8
  %160 = extractvalue { ptr, i32 } %158, 1
  store i32 %160, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %25) #6
  br label %166

161:                                              ; preds = %145
  br label %162

162:                                              ; preds = %161, %89
  %163 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %164 unwind label %135

164:                                              ; preds = %162
  store i32 0, ptr %1, align 4
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %24) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %24) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %23) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  %165 = load i32, ptr %1, align 4
  ret i32 %165

166:                                              ; preds = %157, %135
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %24) #6
  br label %167

167:                                              ; preds = %166, %131
  call void @llvm.lifetime.end.p0(i64 24, ptr %24) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %23) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %168

168:                                              ; preds = %167, %130
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %169

169:                                              ; preds = %168
  %170 = load ptr, ptr %10, align 8
  %171 = load i32, ptr %11, align 4
  %172 = insertvalue { ptr, i32 } poison, ptr %170, 0
  %173 = insertvalue { ptr, i32 } %172, i32 %171, 1
  resume { ptr, i32 } %173
}

; 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 void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #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 void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution8findPathB5cxx11ERSt6vectorIS0_IiSaIiEESaIS2_EEi(ptr dead_on_unwind noalias writable sret(%"class.std::vector.6") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

; 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) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3 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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { 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 #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 = { 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 #4 = { "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 = { 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 #6 = { 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, !11, i64 0}
!10 = !{!"_ZTSSt16initializer_listIiE", !11, i64 0, !12, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !12, i64 8}
!14 = !{!15, !11, i64 0}
!15 = !{!"_ZTSSt16initializer_listISt6vectorIiSaIiEEE", !11, i64 0, !12, i64 8}
!16 = !{!15, !12, i64 8}
!17 = distinct !{!17, !18}
!18 = !{!"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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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::allocator.2" = type { i8 }
%"class.std::allocator" = type { i8 }
%class.Solution = type { i8 }
%"class.std::vector.6" = type { %"struct.std::_Vector_base.7" }
%"struct.std::_Vector_base.7" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector", align 8
  %2 = alloca [4 x %"class.std::vector.0"], align 8
  %3 = alloca [4 x i32], align 16
  %4 = alloca %"class.std::allocator.2", align 1
  %5 = alloca [4 x i32], align 16
  %6 = alloca %"class.std::allocator.2", align 1
  %7 = alloca [4 x i32], align 16
  %8 = alloca %"class.std::allocator.2", align 1
  %9 = alloca [4 x i32], align 16
  %10 = alloca %"class.std::allocator.2", align 1
  %11 = alloca %"class.std::allocator", align 1
  %12 = alloca %class.Solution, align 1
  %13 = alloca %"class.std::vector.6", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 96, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #6
  store <4 x i32> <i32 1, i32 0, i32 0, i32 0>, ptr %3, align 16, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr nonnull %3, i64 4, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %14 unwind label %.thread

14:                                               ; preds = %0
  %15 = getelementptr inbounds i8, ptr %2, i64 24
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #6
  store <4 x i32> <i32 1, i32 1, i32 0, i32 1>, ptr %5, align 16, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %15, ptr nonnull %5, i64 4, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %16 unwind label %32

16:                                               ; preds = %14
  %17 = getelementptr inbounds i8, ptr %2, i64 48
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %7) #6
  store <4 x i32> <i32 1, i32 1, i32 0, i32 0>, ptr %7, align 16, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %8) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %17, ptr nonnull %7, i64 4, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %18 unwind label %34

18:                                               ; preds = %16
  %19 = getelementptr inbounds i8, ptr %2, i64 72
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %9) #6
  store <4 x i32> <i32 0, i32 1, i32 1, i32 1>, ptr %9, align 16, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %10) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %19, ptr nonnull %9, i64 4, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %20 unwind label %36

20:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %11) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24) %1, ptr nonnull %2, i64 4, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %21 unwind label %.loopexit49.loopexit

21:                                               ; preds = %20
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %11) #6
  %22 = getelementptr inbounds i8, ptr %2, i64 72
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %22) #6
  %23 = getelementptr inbounds i8, ptr %2, i64 48
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %23) #6
  %24 = getelementptr inbounds i8, ptr %2, i64 24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %24) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %9) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %12) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %13) #6
  invoke void @_ZN8Solution8findPathB5cxx11ERSt6vectorIS0_IiSaIiEESaIS2_EEi(ptr dead_on_unwind nonnull writable sret(%"class.std::vector.6") align 8 %13, ptr noundef nonnull align 1 dereferenceable(1) %12, ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef 4)
          to label %25 unwind label %48

25:                                               ; preds = %21
  %26 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  %27 = icmp eq i64 %26, 0
  br i1 %27, label %29, label %.preheader

.preheader:                                       ; preds = %25
  %28 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  %.not = icmp eq i64 %28, 0
  br i1 %.not, label %.loopexit, label %.lr.ph

29:                                               ; preds = %25
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
          to label %.loopexit unwind label %50

.thread:                                          ; preds = %0
  %31 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #6
  br label %.loopexit48

32:                                               ; preds = %14
  %33 = landingpad { ptr, i32 }
          cleanup
  br label %44

34:                                               ; preds = %16
  %35 = landingpad { ptr, i32 }
          cleanup
  br label %43

36:                                               ; preds = %18
  %37 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit49

.loopexit49.loopexit:                             ; preds = %20
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %11) #6
  %39 = getelementptr inbounds i8, ptr %2, i64 72
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %39) #6
  %40 = getelementptr inbounds i8, ptr %2, i64 48
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %40) #6
  %41 = getelementptr inbounds i8, ptr %2, i64 24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %41) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %.loopexit49

.loopexit49:                                      ; preds = %.loopexit49.loopexit, %36
  %.pn = phi { ptr, i32 } [ %37, %36 ], [ %38, %.loopexit49.loopexit ]
  %42 = phi i1 [ false, %36 ], [ true, %.loopexit49.loopexit ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %9) #6
  br label %43

43:                                               ; preds = %.loopexit49, %34
  %.pn.pn = phi { ptr, i32 } [ %.pn, %.loopexit49 ], [ %35, %34 ]
  %.018 = phi ptr [ %19, %.loopexit49 ], [ %17, %34 ]
  %.1 = phi i1 [ %42, %.loopexit49 ], [ false, %34 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #6
  br label %44

44:                                               ; preds = %32, %43
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %43 ], [ %33, %32 ]
  %.119 = phi ptr [ %.018, %43 ], [ %15, %32 ]
  %.2 = phi i1 [ %.1, %43 ], [ false, %32 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #6
  br i1 %.2, label %.loopexit48, label %.preheader47

.preheader47:                                     ; preds = %44, %.preheader47
  %45 = phi ptr [ %46, %.preheader47 ], [ %.119, %44 ]
  %46 = getelementptr inbounds i8, ptr %45, i64 -24
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %46) #6
  %47 = icmp eq ptr %46, %2
  br i1 %47, label %.loopexit48, label %.preheader47

.loopexit48:                                      ; preds = %.preheader47, %.thread, %44
  %.pn.pn.pn.pn46 = phi { ptr, i32 } [ %31, %.thread ], [ %.pn.pn.pn, %44 ], [ %.pn.pn.pn, %.preheader47 ]
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %2) #6
  br label %65

48:                                               ; preds = %21
  %49 = landingpad { ptr, i32 }
          cleanup
  br label %64

50:                                               ; preds = %.loopexit, %29
  %51 = landingpad { ptr, i32 }
          cleanup
  br label %63

.lr.ph:                                           ; preds = %.preheader, %56
  %indvars.iv = phi i64 [ %indvars.iv.next, %56 ], [ 0, %.preheader ]
  %52 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef %indvars.iv) #6
  %53 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %52)
          to label %54 unwind label %59

54:                                               ; preds = %.lr.ph
  %55 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %53, ptr noundef nonnull @.str)
          to label %56 unwind label %59

56:                                               ; preds = %54
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %57 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  %58 = icmp ugt i64 %57, %indvars.iv.next
  br i1 %58, label %.lr.ph, label %.loopexit, !llvm.loop !9

59:                                               ; preds = %54, %.lr.ph
  %60 = landingpad { ptr, i32 }
          cleanup
  br label %63

.loopexit:                                        ; preds = %56, %.preheader, %29
  %61 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %62 unwind label %50

62:                                               ; preds = %.loopexit
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #6
  ret i32 0

63:                                               ; preds = %59, %50
  %.pn38 = phi { ptr, i32 } [ %51, %50 ], [ %60, %59 ]
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  br label %64

64:                                               ; preds = %63, %48
  %.pn38.pn = phi { ptr, i32 } [ %.pn38, %63 ], [ %49, %48 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  br label %65

65:                                               ; preds = %64, %.loopexit48
  %.pn38.pn.pn = phi { ptr, i32 } [ %.pn38.pn, %64 ], [ %.pn.pn.pn.pn46, %.loopexit48 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn38.pn.pn
}

; 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 void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2ESt16initializer_listIS1_ERKS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution8findPathB5cxx11ERSt6vectorIS0_IiSaIiEESaIS2_EEi(ptr dead_on_unwind noalias writable sret(%"class.std::vector.6") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; 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 #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; 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 #3 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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { 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 #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 = { 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 #4 = { "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 = { 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 #6 = { 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,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass