NO

Initial ITS

Start location: __init
Program variables: arg1 arg2
   0: f1_0_main_Load -> f50_0_loop_EQ : arg1'=arg1p1, arg2'=arg2p1, (-arg1p1+arg2 == 0 /\ 1+arg2 > 0 /\ arg1 > 0), cost: 1
   1: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1p2, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0 /\ 1-arg1-arg1p2 == 0), cost: 1
   2: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1p3, arg2'=arg2p3, (-1-arg1p3-arg1 == 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
   3: __init -> f1_0_main_Load : arg1'=arg1p4, arg2'=arg2p4, T, cost: 1

Chained Linear Paths

Start location: __init
Program variables: arg1 arg2
   1: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1p2, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0 /\ 1-arg1-arg1p2 == 0), cost: 1
   2: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1p3, arg2'=arg2p3, (-1-arg1p3-arg1 == 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
   4: __init -> f50_0_loop_EQ : arg1'=arg1p1, arg2'=arg2p1, (1+arg2p4 > 0 /\ arg1p4 > 0 /\ -arg1p1+arg2p4 == 0), cost: 1

	Eliminating location f1_0_main_Load by chaining:

	Applied chaining

	First rule:
	__init -> f1_0_main_Load : arg1'=arg1p4, arg2'=arg2p4, T, cost: 1
	Second rule:
	f1_0_main_Load -> f50_0_loop_EQ : arg1'=arg1p1, arg2'=arg2p1, (-arg1p1+arg2 == 0 /\ 1+arg2 > 0 /\ arg1 > 0), cost: 1
	New rule:
	__init -> f50_0_loop_EQ : arg1'=arg1p1, arg2'=arg2p1, (1+arg2p4 > 0 /\ arg1p4 > 0 /\ -arg1p1+arg2p4 == 0), cost: 1
	
	Applied deletion

	Removed the following rules: 0 3

Simplified Transitions

Start location: __init
Program variables: arg1 arg2
   5: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=1-arg1, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
   6: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=-1-arg1, arg2'=arg2p3, (arg1 > 0 /\ 2+arg1 > 0), cost: 1
   7: __init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (1+arg2p4 > 0), cost: 1

	Propagated Equalities

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1p2, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0 /\ 1-arg1-arg1p2 == 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=1-arg1, arg2'=arg2p2, (0 == 0 /\ -1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
	
		propagated equality arg1p2 = 1-arg1
		
	Simplified Guard

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=1-arg1, arg2'=arg2p2, (0 == 0 /\ -1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=1-arg1, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
	
	Propagated Equalities

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1p3, arg2'=arg2p3, (-1-arg1p3-arg1 == 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=-1-arg1, arg2'=arg2p3, (0 == 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
	
		propagated equality arg1p3 = -1-arg1
		
	Simplified Guard

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=-1-arg1, arg2'=arg2p3, (0 == 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=-1-arg1, arg2'=arg2p3, (arg1 > 0 /\ 2+arg1 > 0), cost: 1
	
	Propagated Equalities

	Original rule:
	__init -> f50_0_loop_EQ : arg1'=arg1p1, arg2'=arg2p1, (1+arg2p4 > 0 /\ arg1p4 > 0 /\ -arg1p1+arg2p4 == 0), cost: 1
	New rule:
	__init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (0 == 0 /\ 1+arg2p4 > 0 /\ arg1p4 > 0), cost: 1
	
		propagated equality arg1p1 = arg2p4
		
	Simplified Guard

	Original rule:
	__init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (0 == 0 /\ 1+arg2p4 > 0 /\ arg1p4 > 0), cost: 1
	New rule:
	__init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (1+arg2p4 > 0 /\ arg1p4 > 0), cost: 1
	
	Eliminated Temporary Variables via Transitive Closure

	Original rule:
	__init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (1+arg2p4 > 0 /\ arg1p4 > 0), cost: 1
	New rule:
	__init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (1+arg2p4 > 0), cost: 1

Unrolled Loops

Start location: __init
Program variables: arg1 arg2
   5: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=1-arg1, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
   6: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=-1-arg1, arg2'=arg2p3, (arg1 > 0 /\ 2+arg1 > 0), cost: 1
   8: f50_0_loop_EQ -> f50_0_loop_EQ : arg2'=arg2p21, (1-arg1 < 0 /\ -1+arg1 < 0 /\ -arg1 < 0 /\ -1-arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
   9: f50_0_loop_EQ -> f50_0_loop_EQ : arg2'=arg2p31, (1-arg1 > 0 /\ -1-arg1 > 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
   7: __init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (1+arg2p4 > 0), cost: 1

	Unrolling

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=1-arg1, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1, arg2'=arg2p21, (1-arg1 < 0 /\ -1+arg1 < 0 /\ -arg1 < 0 /\ -1-arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
	
	Removed Trivial Updates

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1, arg2'=arg2p21, (1-arg1 < 0 /\ -1+arg1 < 0 /\ -arg1 < 0 /\ -1-arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg2'=arg2p21, (1-arg1 < 0 /\ -1+arg1 < 0 /\ -arg1 < 0 /\ -1-arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
	
	Unrolling

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=-1-arg1, arg2'=arg2p3, (arg1 > 0 /\ 2+arg1 > 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1, arg2'=arg2p31, (1-arg1 > 0 /\ -1-arg1 > 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
	
	Removed Trivial Updates

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=arg1, arg2'=arg2p31, (1-arg1 > 0 /\ -1-arg1 > 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg2'=arg2p31, (1-arg1 > 0 /\ -1-arg1 > 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1

Step with 7

	Trace

	7[(1+arg2p4 > 0)]
	
	Blocked

	[{}, {}]

Step with 6

	Trace

	7[(1+arg2p4 > 0)], 6[(arg1 > 0 /\ 2+arg1 > 0)]
	
	Blocked

	[{}, {5[T]}, {}]

Acceleration Failed

marked recursive suffix as redundant

Step with 5

	Trace

	7[(1+arg2p4 > 0)], 6[(arg1 > 0 /\ 2+arg1 > 0)], 5[(-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0)]
	
	Blocked

	[{}, {5[T]}, {6[T], 8[T], 9[T]}, {}]

Acceleration Failed

marked recursive suffix as redundant

Nonterm

Start location: __init
Program variables: arg1 arg2
   5: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=1-arg1, arg2'=arg2p2, (-1+arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
   6: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=-1-arg1, arg2'=arg2p3, (arg1 > 0 /\ 2+arg1 > 0), cost: 1
   8: f50_0_loop_EQ -> f50_0_loop_EQ : arg2'=arg2p21, (1-arg1 < 0 /\ -1+arg1 < 0 /\ -arg1 < 0 /\ -1-arg1 < 0 /\ -2+arg1 < 0 /\ arg1 < 0), cost: 1
   9: f50_0_loop_EQ -> f50_0_loop_EQ : arg2'=arg2p31, (1-arg1 > 0 /\ -1-arg1 > 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
  10: f50_0_loop_EQ -> LoAT_sink : (-1+n >= 0 /\ 1+arg1 > 0 /\ arg1 > 0 /\ 3+arg1 > 0 /\ 2+arg1 > 0), cost: NONTERM
  11: f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=2*n+arg1, arg2'=arg2p2, (-1+n >= 0 /\ 1+arg1 > 0 /\ arg1 > 0 /\ 3+arg1 > 0 /\ 2+arg1 > 0), cost: 1
   7: __init -> f50_0_loop_EQ : arg1'=arg2p4, arg2'=arg2p1, (1+arg2p4 > 0), cost: 1

	Certificate of Non-Termination

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=2+arg1, arg2'=arg2p2, (-3-arg1 < 0 /\ -2-arg1 < 0 /\ -1-arg1 < 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
	New rule:
	f50_0_loop_EQ -> LoAT_sink : (-1+n >= 0 /\ 1+arg1 > 0 /\ arg1 > 0 /\ 3+arg1 > 0 /\ 2+arg1 > 0), cost: NONTERM

		1+arg1 > 0 [0]: monotonic increase yields 1+arg1 > 0
		
		arg1 > 0 [0]: monotonic increase yields arg1 > 0, dependencies: 1+arg1 > 0
		
		3+arg1 > 0 [0]: monotonic increase yields 3+arg1 > 0, dependencies: 1+arg1 > 0
		
		2+arg1 > 0 [0]: monotonic increase yields 2+arg1 > 0, dependencies: 1+arg1 > 0
		
		Replacement map: {1+arg1 > 0 -> 1+arg1 > 0, arg1 > 0 -> arg1 > 0, 3+arg1 > 0 -> 3+arg1 > 0, 2+arg1 > 0 -> 2+arg1 > 0}

	Loop Acceleration

	Original rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=2+arg1, arg2'=arg2p2, (-3-arg1 < 0 /\ -2-arg1 < 0 /\ -1-arg1 < 0 /\ arg1 > 0 /\ 2+arg1 > 0), cost: 1
	New rule:
	f50_0_loop_EQ -> f50_0_loop_EQ : arg1'=2*n+arg1, arg2'=arg2p2, (-1+n >= 0 /\ 1+arg1 > 0 /\ arg1 > 0 /\ 3+arg1 > 0 /\ 2+arg1 > 0), cost: 1

		1+arg1 > 0 [0]: monotonic increase yields 1+arg1 > 0
		
		arg1 > 0 [0]: monotonic increase yields arg1 > 0, dependencies: 1+arg1 > 0
		
		3+arg1 > 0 [0]: monotonic increase yields 3+arg1 > 0, dependencies: 1+arg1 > 0
		
		2+arg1 > 0 [0]: monotonic increase yields 2+arg1 > 0, dependencies: 1+arg1 > 0
		
		Replacement map: {1+arg1 > 0 -> 1+arg1 > 0, arg1 > 0 -> arg1 > 0, 3+arg1 > 0 -> 3+arg1 > 0, 2+arg1 > 0 -> 2+arg1 > 0}

Step with 10

	Trace

	7[(1+arg2p4 > 0)], 10[(-1+n >= 0 /\ 1+arg1 > 0 /\ arg1 > 0 /\ 3+arg1 > 0 /\ 2+arg1 > 0)]
	
	Blocked

	[{}, {5[T]}, {10[T]}]

Refute

	Counterexample

	[ arg1=1 arg2=0 ] 7 [ arg1=arg1 arg2=arg2 ] 10
	
NO

Build SHA: a05f16bf13df659c382799650051f91bf6828c7b