; LLVM IR from Mohammed-Shoaib/Coding-Problems :: Gulf Programming Contest/2015/graph (graph)

; 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_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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.11" = type { %"struct.std::_Vector_base.12" }
%"struct.std::_Vector_base.12" = type { %"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.13" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }
%"struct.std::pair" = type { %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@stdin = external global ptr, align 8
@.str.2 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@stdout = external global ptr, align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5graphRSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 8 dereferenceable(24)) #0

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(64) ptr @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #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(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector.11", align 8
  %4 = alloca %"class.std::allocator.13", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca %"struct.std::_Bit_reference", align 8
  %13 = alloca %"struct.std::_Bit_reference", align 8
  store i32 0, ptr %1, align 4
  %14 = load ptr, ptr @stdin, align 8, !tbaa !5
  %15 = call ptr @freopen(ptr noundef @.str, ptr noundef @.str.1, ptr noundef %14)
  %16 = load ptr, ptr @stdout, align 8, !tbaa !5
  %17 = call ptr @freopen(ptr noundef @.str.2, ptr noundef @.str.3, ptr noundef %16)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  br label %18

18:                                               ; preds = %137, %0
  %19 = 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)
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  %21 = getelementptr i8, ptr %20, i64 -24
  %22 = load i64, ptr %21, align 8
  %23 = getelementptr inbounds i8, ptr %19, i64 %22
  %24 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %23)
  br i1 %24, label %25, label %28

25:                                               ; preds = %18
  %26 = load i32, ptr %2, align 4, !tbaa !11
  %27 = icmp ne i32 %26, 0
  br label %28

28:                                               ; preds = %25, %18
  %29 = phi i1 [ false, %18 ], [ %27, %25 ]
  br i1 %29, label %30, label %144

30:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #6
  %31 = load i32, ptr %2, align 4, !tbaa !11
  %32 = sext i32 %31 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #6
  call void @_ZNSaISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEC2EmRKS8_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %32, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %33 unwind label %39

33:                                               ; preds = %30
  call void @_ZNSt15__new_allocatorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #6
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  store i32 0, ptr %8, align 4, !tbaa !11
  br label %34

34:                                               ; preds = %56, %33
  %35 = load i32, ptr %8, align 4, !tbaa !11
  %36 = load i32, ptr %2, align 4, !tbaa !11
  %37 = icmp slt i32 %35, %36
  br i1 %37, label %43, label %38

38:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  br label %63

39:                                               ; preds = %30
  %40 = landingpad { ptr, i32 }
          cleanup
  %41 = extractvalue { ptr, i32 } %40, 0
  store ptr %41, ptr %5, align 8
  %42 = extractvalue { ptr, i32 } %40, 1
  store i32 %42, ptr %6, align 4
  call void @_ZNSt15__new_allocatorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  br label %143

43:                                               ; preds = %34
  %44 = load i32, ptr %8, align 4, !tbaa !11
  %45 = sext i32 %44 to i64
  %46 = call noundef nonnull align 8 dereferenceable(64) ptr @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %45) #6
  %47 = getelementptr inbounds %"struct.std::pair", ptr %46, i32 0, i32 0
  %48 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %47)
          to label %49 unwind label %59

49:                                               ; preds = %43
  %50 = load i32, ptr %8, align 4, !tbaa !11
  %51 = sext i32 %50 to i64
  %52 = call noundef nonnull align 8 dereferenceable(64) ptr @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %51) #6
  %53 = getelementptr inbounds %"struct.std::pair", ptr %52, i32 0, i32 1
  %54 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %48, ptr noundef nonnull align 8 dereferenceable(32) %53)
          to label %55 unwind label %59

55:                                               ; preds = %49
  br label %56

56:                                               ; preds = %55
  %57 = load i32, ptr %8, align 4, !tbaa !11
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %8, align 4, !tbaa !11
  br label %34, !llvm.loop !13

59:                                               ; preds = %49, %43
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %5, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  br label %142

63:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #6
  invoke void @_Z5graphRSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EE(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %9, ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %64 unwind label %72

64:                                               ; preds = %63
  %65 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 8 dereferenceable(24) %9) #6
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !11
  br label %66

66:                                               ; preds = %127, %64
  %67 = load i32, ptr %11, align 4, !tbaa !11
  %68 = sext i32 %67 to i64
  %69 = call noundef i64 @_ZNKSt6vectorIS_IbSaIbEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  %70 = icmp ult i64 %68, %69
  br i1 %70, label %76, label %71

71:                                               ; preds = %66
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %135

72:                                               ; preds = %63
  %73 = landingpad { ptr, i32 }
          cleanup
  %74 = extractvalue { ptr, i32 } %73, 0
  store ptr %74, ptr %5, align 8
  %75 = extractvalue { ptr, i32 } %73, 1
  store i32 %75, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #6
  br label %142

76:                                               ; preds = %66
  store i32 0, ptr %10, align 4, !tbaa !11
  br label %77

77:                                               ; preds = %103, %76
  %78 = load i32, ptr %10, align 4, !tbaa !11
  %79 = sext i32 %78 to i64
  %80 = load i32, ptr %11, align 4, !tbaa !11
  %81 = sext i32 %80 to i64
  %82 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %81) #6
  %83 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %82) #6
  %84 = sub i64 %83, 1
  %85 = icmp ult i64 %79, %84
  br i1 %85, label %86, label %110

86:                                               ; preds = %77
  call void @llvm.lifetime.start.p0(i64 16, ptr %12) #6
  %87 = load i32, ptr %11, align 4, !tbaa !11
  %88 = sext i32 %87 to i64
  %89 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %88) #6
  %90 = load i32, ptr %10, align 4, !tbaa !11
  %91 = sext i32 %90 to i64
  %92 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %89, i64 noundef %91)
          to label %93 unwind label %106

93:                                               ; preds = %86
  %94 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 0
  %95 = extractvalue { ptr, i64 } %92, 0
  store ptr %95, ptr %94, align 8
  %96 = getelementptr inbounds { ptr, i64 }, ptr %12, i32 0, i32 1
  %97 = extractvalue { ptr, i64 } %92, 1
  store i64 %97, ptr %96, align 8
  %98 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %12) #6
  %99 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEb(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i1 noundef zeroext %98)
          to label %100 unwind label %106

100:                                              ; preds = %93
  %101 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %99, ptr noundef @.str.4)
          to label %102 unwind label %106

102:                                              ; preds = %100
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #6
  br label %103

103:                                              ; preds = %102
  %104 = load i32, ptr %10, align 4, !tbaa !11
  %105 = add nsw i32 %104, 1
  store i32 %105, ptr %10, align 4, !tbaa !11
  br label %77, !llvm.loop !15

106:                                              ; preds = %100, %93, %86
  %107 = landingpad { ptr, i32 }
          cleanup
  %108 = extractvalue { ptr, i32 } %107, 0
  store ptr %108, ptr %5, align 8
  %109 = extractvalue { ptr, i32 } %107, 1
  store i32 %109, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #6
  br label %134

110:                                              ; preds = %77
  call void @llvm.lifetime.start.p0(i64 16, ptr %13) #6
  %111 = load i32, ptr %11, align 4, !tbaa !11
  %112 = sext i32 %111 to i64
  %113 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %112) #6
  %114 = load i32, ptr %10, align 4, !tbaa !11
  %115 = sext i32 %114 to i64
  %116 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %113, i64 noundef %115)
          to label %117 unwind label %130

117:                                              ; preds = %110
  %118 = getelementptr inbounds { ptr, i64 }, ptr %13, i32 0, i32 0
  %119 = extractvalue { ptr, i64 } %116, 0
  store ptr %119, ptr %118, align 8
  %120 = getelementptr inbounds { ptr, i64 }, ptr %13, i32 0, i32 1
  %121 = extractvalue { ptr, i64 } %116, 1
  store i64 %121, ptr %120, align 8
  %122 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %13) #6
  %123 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEb(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i1 noundef zeroext %122)
          to label %124 unwind label %130

124:                                              ; preds = %117
  %125 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %123, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %126 unwind label %130

126:                                              ; preds = %124
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #6
  br label %127

127:                                              ; preds = %126
  %128 = load i32, ptr %11, align 4, !tbaa !11
  %129 = add nsw i32 %128, 1
  store i32 %129, ptr %11, align 4, !tbaa !11
  br label %66, !llvm.loop !16

130:                                              ; preds = %124, %117, %110
  %131 = landingpad { ptr, i32 }
          cleanup
  %132 = extractvalue { ptr, i32 } %131, 0
  store ptr %132, ptr %5, align 8
  %133 = extractvalue { ptr, i32 } %131, 1
  store i32 %133, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #6
  br label %134

134:                                              ; preds = %130, %106
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %142

135:                                              ; preds = %71
  %136 = 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 %137 unwind label %138

137:                                              ; preds = %135
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  call void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  br label %18, !llvm.loop !17

138:                                              ; preds = %135
  %139 = landingpad { ptr, i32 }
          cleanup
  %140 = extractvalue { ptr, i32 } %139, 0
  store ptr %140, ptr %5, align 8
  %141 = extractvalue { ptr, i32 } %139, 1
  store i32 %141, ptr %6, align 4
  br label %142

142:                                              ; preds = %138, %134, %72, %59
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  call void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %143

143:                                              ; preds = %142, %39
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %145

144:                                              ; preds = %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  ret i32 0

145:                                              ; preds = %143
  %146 = load ptr, ptr %5, align 8
  %147 = load i32, ptr %6, align 4
  %148 = insertvalue { ptr, i32 } poison, ptr %146, 0
  %149 = insertvalue { ptr, i32 } %148, i32 %147, 1
  resume { ptr, i32 } %149
}

declare ptr @freopen(ptr noundef, ptr noundef, ptr noundef) #4

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

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEC2EmRKS8_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IbSaIbEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #2 align 2

; 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: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEb(ptr noundef nonnull align 8 dereferenceable(8), i1 noundef zeroext) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #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) #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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_EED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}
!16 = distinct !{!16, !14}
!17 = distinct !{!17, !14}


; 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_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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<bool>, std::allocator<std::vector<bool>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.11" = type { %"struct.std::_Vector_base.12" }
%"struct.std::_Vector_base.12" = type { %"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>, std::allocator<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.13" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@stdin = external local_unnamed_addr global ptr, align 8
@.str.2 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@stdout = external local_unnamed_addr global ptr, align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5graphRSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(64) ptr @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) 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(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector.11", align 8
  %3 = alloca %"class.std::allocator.13", align 1
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"struct.std::_Bit_reference", align 8
  %7 = alloca %"struct.std::_Bit_reference", align 8
  %8 = load ptr, ptr @stdin, align 8, !tbaa !5
  %9 = tail call ptr @freopen(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, ptr noundef %8)
  %10 = load ptr, ptr @stdout, align 8, !tbaa !5
  %11 = tail call ptr @freopen(ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.3, ptr noundef %10)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = getelementptr i8, ptr %13, i64 -24
  %15 = load i64, ptr %14, align 8
  %16 = getelementptr inbounds i8, ptr %12, i64 %15
  %17 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %16)
  %18 = load i32, ptr %1, align 4
  %19 = icmp ne i32 %18, 0
  %20 = select i1 %17, i1 %19, i1 false
  br i1 %20, label %.lr.ph35, label %._crit_edge36

.lr.ph35:                                         ; preds = %0
  %21 = getelementptr inbounds i8, ptr %6, i64 8
  %22 = getelementptr inbounds i8, ptr %7, i64 8
  br label %23

23:                                               ; preds = %.lr.ph35, %81
  %24 = phi i32 [ %18, %.lr.ph35 ], [ %88, %81 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #6
  %25 = sext i32 %24 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #6
  call void @_ZNSaISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  invoke void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEC2EmRKS8_(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %25, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %26 unwind label %29

26:                                               ; preds = %23
  call void @_ZNSt15__new_allocatorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #6
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %27 = load i32, ptr %1, align 4, !tbaa !11
  %28 = icmp sgt i32 %27, 0
  br i1 %28, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %37, %26
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #6
  invoke void @_Z5graphRSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EE(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %5, ptr noundef nonnull align 8 dereferenceable(24) %2)
          to label %43 unwind label %49

29:                                               ; preds = %23
  %30 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_EED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  br label %94

.lr.ph:                                           ; preds = %26, %37
  %indvars.iv = phi i64 [ %indvars.iv.next, %37 ], [ 0, %26 ]
  %31 = call noundef nonnull align 8 dereferenceable(64) ptr @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #6
  %32 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %31)
          to label %33 unwind label %41

33:                                               ; preds = %.lr.ph
  %34 = call noundef nonnull align 8 dereferenceable(64) ptr @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #6
  %35 = getelementptr inbounds i8, ptr %34, i64 32
  %36 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %32, ptr noundef nonnull align 8 dereferenceable(32) %35)
          to label %37 unwind label %41

37:                                               ; preds = %33
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %38 = load i32, ptr %1, align 4, !tbaa !11
  %39 = sext i32 %38 to i64
  %40 = icmp slt i64 %indvars.iv.next, %39
  br i1 %40, label %.lr.ph, label %._crit_edge, !llvm.loop !13

41:                                               ; preds = %33, %.lr.ph
  %42 = landingpad { ptr, i32 }
          cleanup
  br label %93

43:                                               ; preds = %._crit_edge
  %44 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  %45 = call noundef i64 @_ZNKSt6vectorIS_IbSaIbEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %.not = icmp eq i64 %45, 0
  br i1 %.not, label %._crit_edge33, label %.preheader

.preheader:                                       ; preds = %43, %76
  %indvars.iv43 = phi i64 [ %indvars.iv.next44, %76 ], [ 0, %43 ]
  %46 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv43) #6
  %47 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %46) #6
  %.not37 = icmp eq i64 %47, 1
  br i1 %.not37, label %._crit_edge31, label %.lr.ph30

._crit_edge33:                                    ; preds = %76, %43
  %48 = 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 %81 unwind label %91

49:                                               ; preds = %._crit_edge
  %50 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  br label %93

.lr.ph30:                                         ; preds = %.preheader, %60
  %indvars.iv40 = phi i64 [ %indvars.iv.next41, %60 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #6
  %51 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv43) #6
  %52 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %51, i64 noundef %indvars.iv40)
          to label %53 unwind label %65

53:                                               ; preds = %.lr.ph30
  %54 = extractvalue { ptr, i64 } %52, 0
  store ptr %54, ptr %6, align 8
  %55 = extractvalue { ptr, i64 } %52, 1
  store i64 %55, ptr %21, align 8
  %56 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %6) #6
  %57 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEb(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i1 noundef zeroext %56)
          to label %58 unwind label %65

58:                                               ; preds = %53
  %59 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %57, ptr noundef nonnull @.str.4)
          to label %60 unwind label %65

60:                                               ; preds = %58
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #6
  %indvars.iv.next41 = add nuw nsw i64 %indvars.iv40, 1
  %61 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv43) #6
  %62 = call noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %61) #6
  %63 = add i64 %62, -1
  %64 = icmp ugt i64 %63, %indvars.iv.next41
  br i1 %64, label %.lr.ph30, label %._crit_edge31, !llvm.loop !15

65:                                               ; preds = %58, %53, %.lr.ph30
  %66 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #6
  br label %93

._crit_edge31:                                    ; preds = %60, %.preheader
  %.lcssa = phi i64 [ 0, %.preheader ], [ %indvars.iv.next41, %60 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %7) #6
  %67 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv43) #6
  %68 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %67, i64 noundef %.lcssa)
          to label %69 unwind label %79

69:                                               ; preds = %._crit_edge31
  %70 = extractvalue { ptr, i64 } %68, 0
  store ptr %70, ptr %7, align 8
  %71 = extractvalue { ptr, i64 } %68, 1
  store i64 %71, ptr %22, align 8
  %72 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %7) #6
  %73 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEb(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i1 noundef zeroext %72)
          to label %74 unwind label %79

74:                                               ; preds = %69
  %75 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %73, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %76 unwind label %79

76:                                               ; preds = %74
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #6
  %indvars.iv.next44 = add nuw nsw i64 %indvars.iv43, 1
  %77 = call noundef i64 @_ZNKSt6vectorIS_IbSaIbEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %78 = icmp ugt i64 %77, %indvars.iv.next44
  br i1 %78, label %.preheader, label %._crit_edge33, !llvm.loop !16

79:                                               ; preds = %74, %69, %._crit_edge31
  %80 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #6
  br label %93

81:                                               ; preds = %._crit_edge33
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  %82 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %83 = load ptr, ptr %82, align 8, !tbaa !9
  %84 = getelementptr i8, ptr %83, i64 -24
  %85 = load i64, ptr %84, align 8
  %86 = getelementptr inbounds i8, ptr %82, i64 %85
  %87 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %86)
  %88 = load i32, ptr %1, align 4
  %89 = icmp ne i32 %88, 0
  %90 = select i1 %87, i1 %89, i1 false
  br i1 %90, label %23, label %._crit_edge36, !llvm.loop !17

91:                                               ; preds = %._crit_edge33
  %92 = landingpad { ptr, i32 }
          cleanup
  br label %93

93:                                               ; preds = %65, %79, %91, %49, %41
  %.pn24 = phi { ptr, i32 } [ %42, %41 ], [ %92, %91 ], [ %50, %49 ], [ %66, %65 ], [ %80, %79 ]
  call void @_ZNSt6vectorIS_IbSaIbEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %94

94:                                               ; preds = %93, %29
  %.pn24.pn = phi { ptr, i32 } [ %.pn24, %93 ], [ %30, %29 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn24.pn

._crit_edge36:                                    ; preds = %81, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0
}

declare ptr @freopen(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #4

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 #4

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_EEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EEC2EmRKS8_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IbSaIbEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IbSaIbEESaIS1_EEaSEOS3_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IbSaIbEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIbSaIbEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #2 align 2

; 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: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEb(ptr noundef nonnull align 8 dereferenceable(8), i1 noundef zeroext) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) 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 #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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_ESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_EED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}
!16 = distinct !{!16, !14}
!17 = distinct !{!17, !14}


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