; LLVM IR from eyangch/competitive-programming :: USACOtraining/4.4 (milk6)

; 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"

%"struct.std::pair.0" = type { %"struct.std::pair", %"struct.std::pair" }
%"struct.std::pair" = type { i32, i32 }
%"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<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.__gnu_cxx::__normal_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@g = external dso_local global [32 x [32 x i32]], align 16
@edges = external dso_local global [1000 x %"struct.std::pair.0"], align 16
@.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 [10 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 noundef i32 @_Z7maxflowv() #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair.0", align 4
  %7 = alloca %"struct.std::pair", align 4
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::pair", align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca %"class.std::vector", align 8
  %14 = alloca ptr, align 8
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  %20 = alloca i32, align 4
  %21 = alloca i32, align 4
  %22 = alloca i32, align 4
  %23 = alloca i32, align 4
  %24 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %25 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %26 = alloca ptr, align 8
  %27 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %28 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %29 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %30 = load ptr, ptr @stdin, align 8, !tbaa !5
  %31 = call ptr @freopen(ptr noundef @.str, ptr noundef @.str.1, ptr noundef %30)
  %32 = load ptr, ptr @stdout, align 8, !tbaa !5
  %33 = call ptr @freopen(ptr noundef @.str.2, ptr noundef @.str.3, ptr noundef %32)
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %35 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %34, ptr noundef nonnull align 4 dereferenceable(4) @M)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  store i32 0, ptr %2, align 4, !tbaa !9
  br label %36

36:                                               ; preds = %66, %0
  %37 = load i32, ptr %2, align 4, !tbaa !9
  %38 = load i32, ptr @M, align 4, !tbaa !9
  %39 = icmp slt i32 %37, %38
  br i1 %39, label %41, label %40

40:                                               ; preds = %36
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %69

41:                                               ; preds = %36
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %42, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %44 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %43, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %45 = load i32, ptr %5, align 4, !tbaa !9
  %46 = load i32, ptr %3, align 4, !tbaa !9
  %47 = sub nsw i32 %46, 1
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds [32 x [32 x i32]], ptr @g, i64 0, i64 %48
  %50 = load i32, ptr %4, align 4, !tbaa !9
  %51 = sub nsw i32 %50, 1
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [32 x i32], ptr %49, i64 0, i64 %52
  %54 = load i32, ptr %53, align 4, !tbaa !9
  %55 = add nsw i32 %54, %45
  store i32 %55, ptr %53, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr %6) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  %56 = load i32, ptr %5, align 4, !tbaa !9
  %57 = sub nsw i32 0, %56
  store i32 %57, ptr %8, align 4, !tbaa !9
  call void @_ZNSt4pairIiiEC2IiRiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #7
  %58 = load i32, ptr %3, align 4, !tbaa !9
  %59 = sub nsw i32 %58, 1
  store i32 %59, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  %60 = load i32, ptr %4, align 4, !tbaa !9
  %61 = sub nsw i32 %60, 1
  store i32 %61, ptr %11, align 4, !tbaa !9
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %9, ptr noundef nonnull align 4 dereferenceable(4) %10, ptr noundef nonnull align 4 dereferenceable(4) %11)
  call void @_ZNSt4pairIS_IiiES0_EC2IS0_S0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS0_S9_(ptr noundef nonnull align 4 dereferenceable(16) %6, ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 4 dereferenceable(8) %9)
  %62 = load i32, ptr %2, align 4, !tbaa !9
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds [1000 x %"struct.std::pair.0"], ptr @edges, i64 0, i64 %63
  %65 = call noundef nonnull align 4 dereferenceable(16) ptr @_ZNSt4pairIS_IiiES0_EaSEOS1_(ptr noundef nonnull align 4 dereferenceable(16) %64, ptr noundef nonnull align 4 dereferenceable(16) %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %66

66:                                               ; preds = %41
  %67 = load i32, ptr %2, align 4, !tbaa !9
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %2, align 4, !tbaa !9
  br label %36, !llvm.loop !11

69:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  %70 = call noundef i32 @_Z7maxflowv()
  store i32 %70, ptr %12, align 4, !tbaa !9
  %71 = load i32, ptr %12, align 4, !tbaa !9
  %72 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %71)
  call void @llvm.lifetime.start.p0(i64 24, ptr %13) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #7
  %73 = load i32, ptr @M, align 4, !tbaa !9
  %74 = sext i32 %73 to i64
  %75 = getelementptr inbounds %"struct.std::pair.0", ptr @edges, i64 %74
  invoke void @_ZSt4sortIPSt4pairIS0_IiiES1_EEvT_S4_(ptr noundef @edges, ptr noundef %75)
          to label %76 unwind label %82

76:                                               ; preds = %69
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #7
  store i32 0, ptr %16, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #7
  store i32 0, ptr %17, align 4, !tbaa !9
  br label %77

77:                                               ; preds = %165, %76
  %78 = load i32, ptr %17, align 4, !tbaa !9
  %79 = load i32, ptr @M, align 4, !tbaa !9
  %80 = icmp slt i32 %78, %79
  br i1 %80, label %86, label %81

81:                                               ; preds = %77
  store i32 5, ptr %18, align 4
  br label %168

82:                                               ; preds = %69
  %83 = landingpad { ptr, i32 }
          cleanup
  %84 = extractvalue { ptr, i32 } %83, 0
  store ptr %84, ptr %14, align 8
  %85 = extractvalue { ptr, i32 } %83, 1
  store i32 %85, ptr %15, align 4
  br label %217

86:                                               ; preds = %77
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #7
  %87 = load i32, ptr %17, align 4, !tbaa !9
  %88 = sext i32 %87 to i64
  %89 = getelementptr inbounds [1000 x %"struct.std::pair.0"], ptr @edges, i64 0, i64 %88
  %90 = getelementptr inbounds %"struct.std::pair.0", ptr %89, i32 0, i32 1
  %91 = getelementptr inbounds %"struct.std::pair", ptr %90, i32 0, i32 0
  %92 = load i32, ptr %91, align 8, !tbaa !13
  store i32 %92, ptr %19, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #7
  %93 = load i32, ptr %17, align 4, !tbaa !9
  %94 = sext i32 %93 to i64
  %95 = getelementptr inbounds [1000 x %"struct.std::pair.0"], ptr @edges, i64 0, i64 %94
  %96 = getelementptr inbounds %"struct.std::pair.0", ptr %95, i32 0, i32 1
  %97 = getelementptr inbounds %"struct.std::pair", ptr %96, i32 0, i32 1
  %98 = load i32, ptr %97, align 4, !tbaa !16
  store i32 %98, ptr %20, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %21) #7
  %99 = load i32, ptr %17, align 4, !tbaa !9
  %100 = sext i32 %99 to i64
  %101 = getelementptr inbounds [1000 x %"struct.std::pair.0"], ptr @edges, i64 0, i64 %100
  %102 = getelementptr inbounds %"struct.std::pair.0", ptr %101, i32 0, i32 0
  %103 = getelementptr inbounds %"struct.std::pair", ptr %102, i32 0, i32 0
  %104 = load i32, ptr %103, align 16, !tbaa !17
  %105 = sub nsw i32 0, %104
  store i32 %105, ptr %21, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %22) #7
  %106 = load i32, ptr %17, align 4, !tbaa !9
  %107 = sext i32 %106 to i64
  %108 = getelementptr inbounds [1000 x %"struct.std::pair.0"], ptr @edges, i64 0, i64 %107
  %109 = getelementptr inbounds %"struct.std::pair.0", ptr %108, i32 0, i32 0
  %110 = getelementptr inbounds %"struct.std::pair", ptr %109, i32 0, i32 1
  %111 = load i32, ptr %110, align 4, !tbaa !18
  store i32 %111, ptr %22, align 4, !tbaa !9
  %112 = load i32, ptr %21, align 4, !tbaa !9
  %113 = load i32, ptr %19, align 4, !tbaa !9
  %114 = sext i32 %113 to i64
  %115 = getelementptr inbounds [32 x [32 x i32]], ptr @g, i64 0, i64 %114
  %116 = load i32, ptr %20, align 4, !tbaa !9
  %117 = sext i32 %116 to i64
  %118 = getelementptr inbounds [32 x i32], ptr %115, i64 0, i64 %117
  %119 = load i32, ptr %118, align 4, !tbaa !9
  %120 = sub nsw i32 %119, %112
  store i32 %120, ptr %118, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %23) #7
  %121 = invoke noundef i32 @_Z7maxflowv()
          to label %122 unwind label %146

122:                                              ; preds = %86
  store i32 %121, ptr %23, align 4, !tbaa !9
  %123 = load i32, ptr %23, align 4, !tbaa !9
  %124 = load i32, ptr %21, align 4, !tbaa !9
  %125 = add nsw i32 %123, %124
  %126 = load i32, ptr %12, align 4, !tbaa !9
  %127 = icmp eq i32 %125, %126
  br i1 %127, label %128, label %151

128:                                              ; preds = %122
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %13, ptr noundef nonnull align 4 dereferenceable(4) %22)
          to label %129 unwind label %146

129:                                              ; preds = %128
  %130 = load i32, ptr %21, align 4, !tbaa !9
  %131 = load i32, ptr %19, align 4, !tbaa !9
  %132 = sext i32 %131 to i64
  %133 = getelementptr inbounds [32 x [32 x i32]], ptr @g, i64 0, i64 %132
  %134 = load i32, ptr %20, align 4, !tbaa !9
  %135 = sext i32 %134 to i64
  %136 = getelementptr inbounds [32 x i32], ptr %133, i64 0, i64 %135
  %137 = load i32, ptr %136, align 4, !tbaa !9
  %138 = add nsw i32 %137, %130
  store i32 %138, ptr %136, align 4, !tbaa !9
  %139 = load i32, ptr %21, align 4, !tbaa !9
  %140 = load i32, ptr %16, align 4, !tbaa !9
  %141 = add nsw i32 %140, %139
  store i32 %141, ptr %16, align 4, !tbaa !9
  %142 = load i32, ptr %16, align 4, !tbaa !9
  %143 = load i32, ptr %12, align 4, !tbaa !9
  %144 = icmp eq i32 %142, %143
  br i1 %144, label %145, label %150

145:                                              ; preds = %129
  store i32 5, ptr %18, align 4
  br label %162

146:                                              ; preds = %128, %86
  %147 = landingpad { ptr, i32 }
          cleanup
  %148 = extractvalue { ptr, i32 } %147, 0
  store ptr %148, ptr %14, align 8
  %149 = extractvalue { ptr, i32 } %147, 1
  store i32 %149, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %23) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %22) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  br label %216

150:                                              ; preds = %129
  br label %161

151:                                              ; preds = %122
  %152 = load i32, ptr %21, align 4, !tbaa !9
  %153 = load i32, ptr %19, align 4, !tbaa !9
  %154 = sext i32 %153 to i64
  %155 = getelementptr inbounds [32 x [32 x i32]], ptr @g, i64 0, i64 %154
  %156 = load i32, ptr %20, align 4, !tbaa !9
  %157 = sext i32 %156 to i64
  %158 = getelementptr inbounds [32 x i32], ptr %155, i64 0, i64 %157
  %159 = load i32, ptr %158, align 4, !tbaa !9
  %160 = add nsw i32 %159, %152
  store i32 %160, ptr %158, align 4, !tbaa !9
  br label %161

161:                                              ; preds = %151, %150
  store i32 0, ptr %18, align 4
  br label %162

162:                                              ; preds = %161, %145
  call void @llvm.lifetime.end.p0(i64 4, ptr %23) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %22) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #7
  %163 = load i32, ptr %18, align 4
  switch i32 %163, label %168 [
    i32 0, label %164
  ]

164:                                              ; preds = %162
  br label %165

165:                                              ; preds = %164
  %166 = load i32, ptr %17, align 4, !tbaa !9
  %167 = add nsw i32 %166, 1
  store i32 %167, ptr %17, align 4, !tbaa !9
  br label %77, !llvm.loop !19

168:                                              ; preds = %162, %81
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  br label %169

169:                                              ; preds = %168
  %170 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #7
  %171 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %24, i32 0, i32 0
  store ptr %170, ptr %171, align 8
  %172 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #7
  %173 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %25, i32 0, i32 0
  store ptr %172, ptr %173, align 8
  %174 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %24, i32 0, i32 0
  %175 = load ptr, ptr %174, align 8
  %176 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %25, i32 0, i32 0
  %177 = load ptr, ptr %176, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %175, ptr %177)
          to label %178 unwind label %195

178:                                              ; preds = %169
  %179 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.4)
          to label %180 unwind label %195

180:                                              ; preds = %178
  %181 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #7
  %182 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %179, i64 noundef %181)
          to label %183 unwind label %195

183:                                              ; preds = %180
  %184 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %182, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %185 unwind label %195

185:                                              ; preds = %183
  call void @llvm.lifetime.start.p0(i64 8, ptr %26) #7
  store ptr %13, ptr %26, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %27) #7
  %186 = load ptr, ptr %26, align 8, !tbaa !5
  %187 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %186) #7
  %188 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %27, i32 0, i32 0
  store ptr %187, ptr %188, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %28) #7
  %189 = load ptr, ptr %26, align 8, !tbaa !5
  %190 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %189) #7
  %191 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %28, i32 0, i32 0
  store ptr %190, ptr %191, align 8
  br label %192

192:                                              ; preds = %208, %185
  %193 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %27, ptr noundef nonnull align 8 dereferenceable(8) %28) #7
  br i1 %193, label %199, label %194

194:                                              ; preds = %192
  store i32 8, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %28) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %27) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %26) #7
  br label %214

195:                                              ; preds = %183, %180, %178, %169
  %196 = landingpad { ptr, i32 }
          cleanup
  %197 = extractvalue { ptr, i32 } %196, 0
  store ptr %197, ptr %14, align 8
  %198 = extractvalue { ptr, i32 } %196, 1
  store i32 %198, ptr %15, align 4
  br label %216

199:                                              ; preds = %192
  call void @llvm.lifetime.start.p0(i64 4, ptr %29) #7
  %200 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %27) #7
  %201 = load i32, ptr %200, align 4, !tbaa !9
  store i32 %201, ptr %29, align 4, !tbaa !9
  %202 = load i32, ptr %29, align 4, !tbaa !9
  %203 = add nsw i32 %202, 1
  %204 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %203)
          to label %205 unwind label %210

205:                                              ; preds = %199
  %206 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %204, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %207 unwind label %210

207:                                              ; preds = %205
  call void @llvm.lifetime.end.p0(i64 4, ptr %29) #7
  br label %208

208:                                              ; preds = %207
  %209 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %27) #7
  br label %192

210:                                              ; preds = %205, %199
  %211 = landingpad { ptr, i32 }
          cleanup
  %212 = extractvalue { ptr, i32 } %211, 0
  store ptr %212, ptr %14, align 8
  %213 = extractvalue { ptr, i32 } %211, 1
  store i32 %213, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %29) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %28) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %27) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %26) #7
  br label %216

214:                                              ; preds = %194
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  %215 = load i32, ptr %1, align 4
  ret i32 %215

216:                                              ; preds = %210, %195, %146
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  br label %217

217:                                              ; preds = %216, %82
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %218

218:                                              ; preds = %217
  %219 = load ptr, ptr %14, align 8
  %220 = load i32, ptr %15, align 4
  %221 = insertvalue { ptr, i32 } poison, ptr %219, 0
  %222 = insertvalue { ptr, i32 } %221, i32 %220, 1
  resume { ptr, i32 } %222
}

declare ptr @freopen(ptr noundef, ptr noundef, ptr noundef) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIS_IiiES0_EC2IS0_S0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS0_S9_(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(16) ptr @_ZNSt4pairIS_IiiES0_EaSEOS1_(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(16)) #4 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIS0_IiiES1_EEvT_S4_(ptr noundef, ptr noundef) #5

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 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 @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #6

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !10, i64 8}
!14 = !{!"_ZTSSt4pairIS_IiiES0_E", !15, i64 0, !15, i64 8}
!15 = !{!"_ZTSSt4pairIiiE", !10, i64 0, !10, i64 4}
!16 = !{!14, !10, i64 12}
!17 = !{!14, !10, i64 0}
!18 = !{!14, !10, i64 4}
!19 = distinct !{!19, !12}


; 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"

%"struct.std::pair.0" = type { %"struct.std::pair", %"struct.std::pair" }
%"struct.std::pair" = type { i32, i32 }
%"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<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.__gnu_cxx::__normal_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@g = external dso_local local_unnamed_addr global [32 x [32 x i32]], align 16
@edges = external dso_local global [1000 x %"struct.std::pair.0"], align 16
@.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 [10 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 noundef i32 @_Z7maxflowv() local_unnamed_addr #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"struct.std::pair.0", align 4
  %6 = alloca %"struct.std::pair", align 4
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::pair", align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::vector", align 8
  %12 = alloca i32, align 4
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %14 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %15 = load ptr, ptr @stdin, align 8, !tbaa !5
  %16 = tail call ptr @freopen(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, ptr noundef %15)
  %17 = load ptr, ptr @stdout, align 8, !tbaa !5
  %18 = tail call ptr @freopen(ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.3, ptr noundef %17)
  %19 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %20 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 4 dereferenceable(4) @M)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  store i32 0, ptr %1, align 4, !tbaa !9
  %21 = load i32, ptr @M, align 4, !tbaa !9
  %22 = icmp sgt i32 %21, 0
  br i1 %22, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  %23 = call noundef i32 @_Z7maxflowv()
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %23)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %11) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  %25 = load i32, ptr @M, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds %"struct.std::pair.0", ptr @edges, i64 %26
  invoke void @_ZSt4sortIPSt4pairIS0_IiiES1_EEvT_S4_(ptr noundef nonnull @edges, ptr noundef nonnull %27)
          to label %.preheader unwind label %56

.preheader:                                       ; preds = %._crit_edge
  %28 = load i32, ptr @M, align 4, !tbaa !9
  %29 = icmp sgt i32 %28, 0
  br i1 %29, label %.lr.ph46, label %._crit_edge47

.lr.ph:                                           ; preds = %0, %.lr.ph
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  %30 = 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)
  %31 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %30, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %31, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %33 = load i32, ptr %4, align 4, !tbaa !9
  %34 = load i32, ptr %2, align 4, !tbaa !9
  %35 = add nsw i32 %34, -1
  %36 = sext i32 %35 to i64
  %37 = load i32, ptr %3, align 4, !tbaa !9
  %38 = add nsw i32 %37, -1
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds [32 x [32 x i32]], ptr @g, i64 0, i64 %36, i64 %39
  %41 = load i32, ptr %40, align 4, !tbaa !9
  %42 = add nsw i32 %41, %33
  store i32 %42, ptr %40, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #7
  %43 = sub nsw i32 0, %33
  store i32 %43, ptr %7, align 4, !tbaa !9
  call void @_ZNSt4pairIiiEC2IiRiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #7
  %44 = load i32, ptr %2, align 4, !tbaa !9
  %45 = add nsw i32 %44, -1
  store i32 %45, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #7
  %46 = load i32, ptr %3, align 4, !tbaa !9
  %47 = add nsw i32 %46, -1
  store i32 %47, ptr %10, align 4, !tbaa !9
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %10)
  call void @_ZNSt4pairIS_IiiES0_EC2IS0_S0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS0_S9_(ptr noundef nonnull align 4 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(8) %8)
  %48 = load i32, ptr %1, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [1000 x %"struct.std::pair.0"], ptr @edges, i64 0, i64 %49
  %51 = call noundef nonnull align 4 dereferenceable(16) ptr @_ZNSt4pairIS_IiiES0_EaSEOS1_(ptr noundef nonnull align 4 dereferenceable(16) %50, ptr noundef nonnull align 4 dereferenceable(16) %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %52 = load i32, ptr %1, align 4, !tbaa !9
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %1, align 4, !tbaa !9
  %54 = load i32, ptr @M, align 4, !tbaa !9
  %55 = icmp slt i32 %53, %54
  br i1 %55, label %.lr.ph, label %._crit_edge, !llvm.loop !11

56:                                               ; preds = %._crit_edge
  %57 = landingpad { ptr, i32 }
          cleanup
  br label %114

.lr.ph46:                                         ; preds = %.preheader, %84
  %indvars.iv = phi i64 [ %indvars.iv.next, %84 ], [ 0, %.preheader ]
  %.03245 = phi i32 [ %.243, %84 ], [ 0, %.preheader ]
  %58 = getelementptr inbounds [1000 x %"struct.std::pair.0"], ptr @edges, i64 0, i64 %indvars.iv
  %59 = getelementptr inbounds i8, ptr %58, i64 8
  %60 = load i32, ptr %59, align 8, !tbaa !13
  %61 = getelementptr inbounds i8, ptr %58, i64 12
  %62 = load i32, ptr %61, align 4, !tbaa !16
  %63 = load i32, ptr %58, align 16, !tbaa !17
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %12) #7
  %64 = getelementptr inbounds i8, ptr %58, i64 4
  %65 = load i32, ptr %64, align 4, !tbaa !18
  store i32 %65, ptr %12, align 4, !tbaa !9
  %66 = sext i32 %60 to i64
  %67 = sext i32 %62 to i64
  %68 = getelementptr inbounds [32 x [32 x i32]], ptr @g, i64 0, i64 %66, i64 %67
  %69 = load i32, ptr %68, align 4, !tbaa !9
  %70 = add nsw i32 %69, %63
  store i32 %70, ptr %68, align 4, !tbaa !9
  %71 = invoke noundef i32 @_Z7maxflowv()
          to label %72 unwind label %76

72:                                               ; preds = %.lr.ph46
  %73 = sub i32 %71, %63
  %74 = icmp eq i32 %73, %23
  br i1 %74, label %75, label %.thread

75:                                               ; preds = %72
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %11, ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %80 unwind label %76

76:                                               ; preds = %75, %.lr.ph46
  %77 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %12) #7
  br label %114

.thread:                                          ; preds = %72
  %78 = load i32, ptr %68, align 4, !tbaa !9
  %79 = sub i32 %78, %63
  store i32 %79, ptr %68, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %12) #7
  br label %84

80:                                               ; preds = %75
  %81 = load i32, ptr %68, align 4, !tbaa !9
  %82 = sub i32 %81, %63
  store i32 %82, ptr %68, align 4, !tbaa !9
  %83 = sub i32 %.03245, %63
  %.not = icmp eq i32 %83, %23
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %12) #7
  br i1 %.not, label %._crit_edge47, label %84

84:                                               ; preds = %.thread, %80
  %.243 = phi i32 [ %.03245, %.thread ], [ %83, %80 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %85 = load i32, ptr @M, align 4, !tbaa !9
  %86 = sext i32 %85 to i64
  %87 = icmp slt i64 %indvars.iv.next, %86
  br i1 %87, label %.lr.ph46, label %._crit_edge47, !llvm.loop !19

._crit_edge47:                                    ; preds = %80, %84, %.preheader
  %88 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  %89 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %88, ptr %89)
          to label %90 unwind label %101

90:                                               ; preds = %._crit_edge47
  %91 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.4)
          to label %92 unwind label %101

92:                                               ; preds = %90
  %93 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  %94 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %91, i64 noundef %93)
          to label %95 unwind label %101

95:                                               ; preds = %92
  %96 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %94, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %97 unwind label %101

97:                                               ; preds = %95
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %13) #7
  %98 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  store ptr %98, ptr %13, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %14) #7
  %99 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  store ptr %99, ptr %14, align 8
  %100 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %14) #7
  br i1 %100, label %.lr.ph50, label %._crit_edge51

._crit_edge51:                                    ; preds = %109, %97
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %14) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %13) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %11) #7
  ret i32 0

101:                                              ; preds = %95, %92, %90, %._crit_edge47
  %102 = landingpad { ptr, i32 }
          cleanup
  br label %114

.lr.ph50:                                         ; preds = %97, %109
  %103 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #7
  %104 = load i32, ptr %103, align 4, !tbaa !9
  %105 = add nsw i32 %104, 1
  %106 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %105)
          to label %107 unwind label %112

107:                                              ; preds = %.lr.ph50
  %108 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %106, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %109 unwind label %112

109:                                              ; preds = %107
  %110 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #7
  %111 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %14) #7
  br i1 %111, label %.lr.ph50, label %._crit_edge51

112:                                              ; preds = %107, %.lr.ph50
  %113 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %14) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %13) #7
  br label %114

114:                                              ; preds = %76, %101, %112, %56
  %.pn.pn = phi { ptr, i32 } [ %57, %56 ], [ %113, %112 ], [ %102, %101 ], [ %77, %76 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %11) #7
  resume { ptr, i32 } %.pn.pn
}

declare ptr @freopen(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

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 #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIS_IiiES0_EC2IS0_S0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKS0_S9_(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(16) ptr @_ZNSt4pairIS_IiiES0_EaSEOS1_(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(16)) local_unnamed_addr #4 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIS0_IiiES1_EEvT_S4_(ptr noundef, ptr noundef) local_unnamed_addr #5

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 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 @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #6

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !10, i64 8}
!14 = !{!"_ZTSSt4pairIS_IiiES0_E", !15, i64 0, !15, i64 8}
!15 = !{!"_ZTSSt4pairIiiE", !10, i64 0, !10, i64 4}
!16 = !{!14, !10, i64 12}
!17 = !{!14, !10, i64 0}
!18 = !{!14, !10, i64 4}
!19 = distinct !{!19, !12}


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