unknown

Initial ITS

Start location: [1]
Program variables: c x y
   0: [1] -> [2] : x'=nondet, T, cost: 1
   1: [2] -> [3] : y'=nondet1, T, cost: 1
   2: [3] -> [4] : c'=0, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
   4: [5] -> [7] : -y+x > 0, cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  15: [6] -> [15] : c'=1+c, T, cost: 1
   5: [7] -> [8] : x'=-1+x, T, cost: 1
   6: [8] -> [6] : T, cost: 1
   8: [9] -> [11] : -y+x == 0, cost: 1
  11: [9] -> [13] : (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1
   9: [11] -> [12] : x'=-1+x, T, cost: 1
  10: [12] -> [10] : T, cost: 1
  12: [13] -> [14] : y'=-1+y, T, cost: 1
  13: [14] -> [10] : T, cost: 1
  16: [15] -> [4] : T, cost: 1

Chained Linear Paths

Start location: [1]
Program variables: c x y
  19: [1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  21: [5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
  22: [6] -> [4] : c'=1+c, T, cost: 1
  25: [9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
  26: [9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1

	Eliminating location [2] by chaining:

	Applied chaining

	First rule:
	[1] -> [2] : x'=nondet, T, cost: 1
	Second rule:
	[2] -> [3] : y'=nondet1, T, cost: 1
	New rule:
	[1] -> [3] : x'=nondet, y'=nondet1, T, cost: 1
	
	Applied deletion

	Removed the following rules: 0 1
	
	Eliminating location [3] by chaining:

	Applied chaining

	First rule:
	[1] -> [3] : x'=nondet, y'=nondet1, T, cost: 1
	Second rule:
	[3] -> [4] : c'=0, T, cost: 1
	New rule:
	[1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
	
	Applied deletion

	Removed the following rules: 2 18
	
	Eliminating location [7] by chaining:

	Applied chaining

	First rule:
	[5] -> [7] : -y+x > 0, cost: 1
	Second rule:
	[7] -> [8] : x'=-1+x, T, cost: 1
	New rule:
	[5] -> [8] : x'=-1+x, -y+x > 0, cost: 1
	
	Applied deletion

	Removed the following rules: 4 5
	
	Eliminating location [8] by chaining:

	Applied chaining

	First rule:
	[5] -> [8] : x'=-1+x, -y+x > 0, cost: 1
	Second rule:
	[8] -> [6] : T, cost: 1
	New rule:
	[5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
	
	Applied deletion

	Removed the following rules: 6 20
	
	Eliminating location [15] by chaining:

	Applied chaining

	First rule:
	[6] -> [15] : c'=1+c, T, cost: 1
	Second rule:
	[15] -> [4] : T, cost: 1
	New rule:
	[6] -> [4] : c'=1+c, T, cost: 1
	
	Applied deletion

	Removed the following rules: 15 16
	
	Eliminating location [11] by chaining:

	Applied chaining

	First rule:
	[9] -> [11] : -y+x == 0, cost: 1
	Second rule:
	[11] -> [12] : x'=-1+x, T, cost: 1
	New rule:
	[9] -> [12] : x'=-1+x, -y+x == 0, cost: 1
	
	Applied deletion

	Removed the following rules: 8 9
	
	Eliminating location [13] by chaining:

	Applied chaining

	First rule:
	[9] -> [13] : (-y+x < 0 \/ -y+x > 0), cost: 1
	Second rule:
	[13] -> [14] : y'=-1+y, T, cost: 1
	New rule:
	[9] -> [14] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
	
	Applied deletion

	Removed the following rules: 11 12
	
	Eliminating location [12] by chaining:

	Applied chaining

	First rule:
	[9] -> [12] : x'=-1+x, -y+x == 0, cost: 1
	Second rule:
	[12] -> [10] : T, cost: 1
	New rule:
	[9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
	
	Applied deletion

	Removed the following rules: 10 23
	
	Eliminating location [14] by chaining:

	Applied chaining

	First rule:
	[9] -> [14] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
	Second rule:
	[14] -> [10] : T, cost: 1
	New rule:
	[9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
	
	Applied deletion

	Removed the following rules: 13 24

Step with 19

	Trace

	19[T]
	
	Blocked

	[{}, {}]

Step with 17

	Trace

	19[T], 17[(y+x <= 0)]
	
	Blocked

	[{}, {}, {}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {17[T]}]

Step with 3

	Trace

	19[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {}]

Step with 7

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {}, {}]

Step with 25

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {}, {}]

Acceleration Failed

marked recursive suffix as redundant

Step with 3

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {}, {}, {}]

Acceleration Failed

marked recursive suffix as redundant

Step with 7

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {}, {}, {}, {}]

Acceleration Failed

marked recursive suffix as redundant

Step with 26

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {}, {}, {}, {25[T]}, {}]

Accelerate

Start location: [1]
Program variables: c x y
  19: [1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  21: [5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
  22: [6] -> [4] : c'=1+c, T, cost: 1
  25: [9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
  26: [9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1
  27: [10] -> [10] : c'=n+c, y'=-n+y, (y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0), cost: 1

	Loop Acceleration

	Original rule:
	[10] -> [10] : c'=1+c, y'=-1+y, (-y+x < 0 /\ -y+x <= 0 /\ y+x > 0), cost: 1
	New rule:
	[10] -> [10] : c'=n+c, y'=-n+y, (y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0), cost: 1

		y-x > 0 [0]: montonic decrease yields 1-n+y-x > 0
		
		y-x > 0 [1]: eventual increase yields (1 <= 0 /\ y-x > 0)
		
		y-x >= 0 [0]: monotonic increase yields y-x >= 0, dependencies: y-x > 0
		
		y+x > 0 [0]: montonic decrease yields 1-n+y+x > 0
		
		y+x > 0 [1]: eventual increase yields (1 <= 0 /\ y+x > 0)
		
		Replacement map: {y-x > 0 -> 1-n+y-x > 0, y-x >= 0 -> y-x >= 0, y+x > 0 -> 1-n+y+x > 0}

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {27[T]}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}, {27[T]}, {}, {}]

Accelerate

Start location: [1]
Program variables: c x y
  19: [1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
  28: [4] -> [4] : c'=n2+c+n2*n1, x'=-n2+x, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0), cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  21: [5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
  22: [6] -> [4] : c'=1+c, T, cost: 1
  25: [9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
  26: [9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1
  27: [10] -> [10] : c'=n+c, y'=-n+y, (y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0), cost: 1

	Loop Acceleration

	Original rule:
	[4] -> [4] : c'=1+c+n1, x'=-1+x, y'=-n1+y, (-n1+y+x > 0 /\ 1+y-x >= 0 /\ -y+x <= 0 /\ -y+x == 0 /\ 2-n1+y-x > 0 /\ -1+n1 >= 0 /\ y+x > 0), cost: 1
	New rule:
	[4] -> [4] : c'=n2+c+n2*n1, x'=-n2+x, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0), cost: 1

		-n1+y+x > 0 [0]: montonic decrease yields 1-n2-(-1+n2)*n1-n1+y+x > 0, dependencies: -1+n1 >= 0
		
		-n1+y+x > 0 [1]: eventual decrease yields (-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0)
		
		-n1+y+x > 0 [2]: eventual increase yields (1+n1 <= 0 /\ -n1+y+x > 0)
		
		1+y-x >= 0 [0]: monotonic increase yields 1+y-x >= 0, dependencies: 2-n1+y-x > 0
		
		1+y-x >= 0 [1]: montonic decrease yields n2-(-1+n2)*n1+y-x >= 0, dependencies: y-x >= 0
		
		1+y-x >= 0 [2]: eventual decrease yields (1+y-x >= 0 /\ n2-(-1+n2)*n1+y-x >= 0), dependencies: -1+n1 >= 0
		
		1+y-x >= 0 [3]: eventual increase yields (1+y-x >= 0 /\ -1+n1 <= 0)
		
		y-x >= 0 [0]: monotonic increase yields y-x >= 0, dependencies: 2-n1+y-x > 0
		
		y-x >= 0 [1]: montonic decrease yields -1+n2-(-1+n2)*n1+y-x >= 0, dependencies: 2-n1+y-x > 0 -1+n1 >= 0
		
		y-x >= 0 [2]: eventual decrease yields (y-x >= 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0), dependencies: -1+n1 >= 0
		
		y-x >= 0 [3]: eventual increase yields (y-x >= 0 /\ -1+n1 <= 0)
		
		-y+x >= 0 [0]: monotonic increase yields -y+x >= 0, dependencies: -1+n1 >= 0
		
		-y+x >= 0 [1]: eventual decrease yields (1-n2+(-1+n2)*n1-y+x >= 0 /\ -y+x >= 0)
		
		-y+x >= 0 [2]: eventual increase yields (-y+x >= 0 /\ 1-n1 <= 0)
		
		2-n1+y-x > 0 [0]: monotonic increase yields 2-n1+y-x > 0, dependencies: y-x >= 0 -y+x >= 0
		
		-1+n1 >= 0 [0]: monotonic increase yields -1+n1 >= 0
		
		y+x > 0 [0]: montonic decrease yields 1-n2-(-1+n2)*n1+y+x > 0, dependencies: -n1+y+x > 0 -1+n1 >= 0
		
		y+x > 0 [1]: eventual increase yields (1+n1 <= 0 /\ y+x > 0)
		
		Replacement map: {-n1+y+x > 0 -> 1-n2-(-1+n2)*n1-n1+y+x > 0, 1+y-x >= 0 -> 1+y-x >= 0, y-x >= 0 -> (y-x >= 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0), -y+x >= 0 -> -y+x >= 0, 2-n1+y-x > 0 -> 2-n1+y-x > 0, -1+n1 >= 0 -> -1+n1 >= 0, y+x > 0 -> 1-n2-(-1+n2)*n1+y+x > 0}

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {17[T]}, {28[T]}]

Step with 17

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {28[T]}, {}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}]

Step with 3

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}]

Step with 7

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {}]

Step with 25

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}, {}]

Acceleration Failed

marked recursive suffix as redundant

Step with 3

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}, {}, {}]

Step with 7

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}, {}, {}, {}]

Step with 26

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T]}, {}]

Covered

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}, {}, {7[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {}, {3[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {17[T], 28[T]}, {7[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {17[T]}, {3[T], 17[T], 28[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {17[T], 28[T]}]

Step with 3

	Trace

	19[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {}]

Step with 7

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {}, {}]

Step with 26

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {}, {}, {}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {}, {}, {}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {}, {}, {}, {}, {}]

Accelerate

Start location: [1]
Program variables: c x y
  19: [1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
  28: [4] -> [4] : c'=n2+c+n2*n1, x'=-n2+x, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0), cost: 1
  29: [4] -> [4] : c'=c+n4, y'=y-n4, (1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0), cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  21: [5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
  22: [6] -> [4] : c'=1+c, T, cost: 1
  25: [9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
  26: [9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1
  27: [10] -> [10] : c'=n+c, y'=-n+y, (y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0), cost: 1

	Loop Acceleration

	Original rule:
	[4] -> [4] : c'=1+c, y'=-1+y, (-y+x < 0 /\ -y+x <= 0 /\ y+x > 0), cost: 1
	New rule:
	[4] -> [4] : c'=c+n4, y'=y-n4, (1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0), cost: 1

		y-x > 0 [0]: montonic decrease yields 1+y-n4-x > 0
		
		y-x > 0 [1]: eventual increase yields (1 <= 0 /\ y-x > 0)
		
		y-x >= 0 [0]: monotonic increase yields y-x >= 0, dependencies: y-x > 0
		
		y+x > 0 [0]: montonic decrease yields 1+y-n4+x > 0
		
		y+x > 0 [1]: eventual increase yields (1 <= 0 /\ y+x > 0)
		
		Replacement map: {y-x > 0 -> 1+y-n4-x > 0, y-x >= 0 -> y-x >= 0, y+x > 0 -> 1+y-n4+x > 0}

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {29[T]}]

Step with 17

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {29[T]}, {}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}]

Step with 3

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}]

Step with 7

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}]

Step with 26

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {14[T]}]

Step with 27

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {26[-y+x < 0]}]

Step with 25

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 29[T]}, {}, {26[T]}, {}, {}, {}]

Accelerate

Start location: [1]
Program variables: c x y
  19: [1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
  28: [4] -> [4] : c'=n2+c+n2*n1, x'=-n2+x, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0), cost: 1
  29: [4] -> [4] : c'=c+n4, y'=y-n4, (1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0), cost: 1
  30: [4] -> [4] : c'=c+2*n6, x'=-n6+x, y'=1-n6+x, (y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0), cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  21: [5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
  22: [6] -> [4] : c'=1+c, T, cost: 1
  25: [9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
  26: [9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1
  27: [10] -> [10] : c'=n+c, y'=-n+y, (y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0), cost: 1

	Loop Acceleration

	Original rule:
	[4] -> [4] : c'=1+c+y-x, x'=-1+x, y'=x, (y-x >= 0 /\ 1+2*x > 0 /\ 2*x > 0 /\ -1+y-x >= 0), cost: 1
	New rule:
	[4] -> [4] : c'=c+2*n6, x'=-n6+x, y'=1-n6+x, (y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0), cost: 1

		y-x >= 0 [0]: monotonic increase yields y-x >= 0
		
		1+2*x > 0 [0]: monotonic increase yields 1+2*x > 0, dependencies: 2*x > 0
		
		1+2*x > 0 [1]: montonic decrease yields 3-2*n6+2*x > 0, dependencies: 2*x > 0
		
		1+2*x > 0 [2]: eventual decrease yields (1+2*x > 0 /\ 3-2*n6+2*x > 0)
		
		1+2*x > 0 [3]: eventual increase yields (1+2*x > 0 /\ 2 <= 0)
		
		2*x > 0 [0]: montonic decrease yields 2-2*n6+2*x > 0
		
		2*x > 0 [1]: eventual increase yields (2*x > 0 /\ 2 <= 0)
		
		-1+y-x >= 0 [0]: monotonic increase yields -1+y-x >= 0
		
		Replacement map: {y-x >= 0 -> y-x >= 0, 1+2*x > 0 -> 1+2*x > 0, 2*x > 0 -> 2-2*n6+2*x > 0, -1+y-x >= 0 -> -1+y-x >= 0}

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {30[T]}]

Step with 3

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}]

Step with 7

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}, {}]

Step with 26

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}, {25[T]}, {}]

Step with 14

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}, {25[T]}, {}, {}]

Step with 22

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}, {25[T]}, {}, {}, {}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}, {25[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}, {25[T]}, {14[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {17[T], 30[T]}, {7[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 30[T]}]

Step with 29

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {29[T]}]

Acceleration Failed

marked recursive suffix as redundant

Step with 17

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {29[T], 30[T]}, {}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}]

Step with 3

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}]

Step with 7

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}]

Step with 25

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {7[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 29[T], 30[T]}]

Step with 28

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 29[T], 30[T]}, {28[T]}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 28[T], 29[T], 30[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {17[T], 28[T]}, {3[T], 17[T], 28[T], 29[T], 30[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}]

Step with 29

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {29[T]}]

Step with 30

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {29[T]}, {30[T]}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {29[T], 30[T]}]

Step with 17

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {29[T], 30[T]}, {}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}]

Step with 3

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}]

Step with 7

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}]

Step with 25

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {14[T]}]

Step with 27

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}]

Step with 26

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T]}, {7[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {3[T], 17[T], 29[T], 30[T]}]

Step with 28

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {3[T], 17[T], 29[T], 30[T]}, {28[T]}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 30[T]}, {3[T], 17[T], 28[T], 29[T], 30[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}]

Step with 3

	Trace

	19[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}]

Step with 7

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}]

Step with 26

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {}, {}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {14[T]}]

Step with 27

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[-y+x < 0]}]

Step with 25

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}]

Step with 3

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}, {}]

Step with 7

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}, {}, {}]

Step with 26

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T]}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}, {7[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {3[T]}]

Step with 29

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T]}, {29[T]}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T]}]

Step with 30

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T]}, {30[T]}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 30[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {7[T]}]

Step with 21

	Trace

	19[T], 3[(y+x > 0)], 21[(-y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {7[T]}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 21[(-y+x > 0)], 22[T]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {7[T]}, {}, {}]

Accelerate

Start location: [1]
Program variables: c x y
  19: [1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
  28: [4] -> [4] : c'=n2+c+n2*n1, x'=-n2+x, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0), cost: 1
  29: [4] -> [4] : c'=c+n4, y'=y-n4, (1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0), cost: 1
  30: [4] -> [4] : c'=c+2*n6, x'=-n6+x, y'=1-n6+x, (y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0), cost: 1
  31: [4] -> [4] : c'=c+n15, x'=-n15+x, (1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0), cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  21: [5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
  22: [6] -> [4] : c'=1+c, T, cost: 1
  25: [9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
  26: [9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1
  27: [10] -> [10] : c'=n+c, y'=-n+y, (y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0), cost: 1

	Loop Acceleration

	Original rule:
	[4] -> [4] : c'=1+c, x'=-1+x, (-y+x > 0 /\ y+x > 0), cost: 1
	New rule:
	[4] -> [4] : c'=c+n15, x'=-n15+x, (1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0), cost: 1

		-y+x > 0 [0]: montonic decrease yields 1-n15-y+x > 0
		
		-y+x > 0 [1]: eventual increase yields (1 <= 0 /\ -y+x > 0)
		
		y+x > 0 [0]: montonic decrease yields 1-n15+y+x > 0
		
		y+x > 0 [1]: eventual increase yields (1 <= 0 /\ y+x > 0)
		
		Replacement map: {-y+x > 0 -> 1-n15-y+x > 0, y+x > 0 -> 1-n15+y+x > 0}

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {17[T], 28[T], 29[T], 30[T]}, {31[T]}]

Restart

Step with 19

	Trace

	19[T]
	
	Blocked

	[{}, {}]

Step with 17

	Trace

	19[T], 17[(y+x <= 0)]
	
	Blocked

	[{}, {}, {}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {17[T]}]

Step with 3

	Trace

	19[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {}]

Step with 21

	Trace

	19[T], 3[(y+x > 0)], 21[(-y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 21[(-y+x > 0)], 22[T]
	
	Blocked

	[{}, {17[T]}, {}, {}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 21[(-y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}]

Step with 7

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}]

Step with 26

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {}, {}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {14[T]}]

Step with 27

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[-y+x < 0]}]

Step with 25

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {}]

Step with 3

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}]

Step with 7

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}, {}]

Step with 26

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}, {25[T]}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {}, {7[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {3[T]}]

Step with 29

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 31[T]}, {29[T]}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}]

Step with 30

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}, {30[T]}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 30[T], 31[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {17[T]}, {21[T]}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {17[T]}, {7[T], 21[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {3[T], 17[T]}]

Step with 30

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {30[T]}]

Step with 3

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}]

Step with 7

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}, {}]

Step with 26

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}, {}, {}]

Step with 14

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}, {}, {}, {}]

Step with 22

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}, {}, {}, {}, {}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}, {}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}, {}, {14[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {}, {26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {17[T], 30[T]}, {7[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 30[T]}]

Step with 29

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {29[T]}]

Step with 17

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {29[T], 30[T]}, {}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}]

Step with 3

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}]

Step with 7

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {}]

Step with 25

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}, {}, {}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {17[T], 29[T], 30[T]}, {7[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {3[T], 17[T], 29[T], 30[T]}]

Step with 28

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {3[T], 17[T], 29[T], 30[T]}, {28[T]}]

Covered

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 30[T], 31[T]}, {3[T], 17[T], 28[T], 29[T], 30[T]}]

Backtrack

	Trace

	19[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T]}, {3[T], 17[T], 28[T], 29[T], 30[T], 31[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}]

Step with 28

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {28[T]}]

Step with 17

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {28[T], 29[T], 30[T], 31[T]}, {}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}]

Step with 3

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}]

Step with 7

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}]

Step with 25

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}]

Step with 14

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}]

Step with 22

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {}]

Step with 3

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {}, {}]

Step with 7

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {}, {}, {}]

Step with 26

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {}, {}, {25[T]}, {}]

Covered

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {}, {7[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {3[T]}]

Step with 29

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {3[T], 28[T], 31[T]}, {29[T]}]

Covered

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {3[T], 28[T], 29[T], 31[T]}]

Step with 30

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {3[T], 28[T], 29[T], 31[T]}, {30[T]}]

Covered

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {}, {3[T], 28[T], 29[T], 30[T], 31[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {14[T]}]

Step with 27

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {}, {25[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {17[T], 28[T], 29[T], 30[T], 31[T]}, {7[T]}]

Backtrack

	Trace

	19[T], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 30[T]}, {3[T], 17[T], 28[T], 29[T], 30[T], 31[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}]

Step with 31

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {31[T]}]

Step with 17

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {29[T], 30[T], 31[T]}, {}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}]

Step with 3

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}]

Step with 7

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {}]

Step with 25

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {}]

Acceleration Failed

marked recursive suffix as redundant

Step with 3

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {}, {}]

Step with 7

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {}, {}, {}]

Step with 26

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T]}, {}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {}, {7[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {3[T]}]

Step with 29

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 31[T]}, {29[T]}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}]

Step with 30

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}, {30[T]}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 30[T], 31[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {7[T]}]

Step with 21

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 21[(-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {7[T]}, {}]

Step with 22

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 21[(-y+x > 0)], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {7[T]}, {}, {}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 21[(-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {7[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 29[T], 30[T], 31[T]}, {7[T], 21[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 29[T], 30[T], 31[T]}]

Step with 28

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 29[T], 30[T], 31[T]}, {28[T]}]

Accelerate

Start location: [1]
Program variables: c x y
  19: [1] -> [4] : c'=0, x'=nondet, y'=nondet1, T, cost: 1
   3: [4] -> [5] : y+x > 0, cost: 1
  17: [4] -> [16] : y+x <= 0, cost: 1
  28: [4] -> [4] : c'=n2+c+n2*n1, x'=-n2+x, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0), cost: 1
  29: [4] -> [4] : c'=c+n4, y'=y-n4, (1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0), cost: 1
  30: [4] -> [4] : c'=c+2*n6, x'=-n6+x, y'=1-n6+x, (y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0), cost: 1
  31: [4] -> [4] : c'=c+n15, x'=-n15+x, (1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0), cost: 1
  32: [4] -> [4] : c'=2*n2+c-y+x, x'=-n2+y, y'=-n2+y, (-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0), cost: 1
   7: [5] -> [9] : -y+x <= 0, cost: 1
  21: [5] -> [6] : x'=-1+x, -y+x > 0, cost: 1
  22: [6] -> [4] : c'=1+c, T, cost: 1
  25: [9] -> [10] : x'=-1+x, -y+x == 0, cost: 1
  26: [9] -> [10] : y'=-1+y, (-y+x < 0 \/ -y+x > 0), cost: 1
  14: [10] -> [6] : T, cost: 1
  27: [10] -> [10] : c'=n+c, y'=-n+y, (y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0), cost: 1

	rule cannot be iterated more than once
	
	made implied equalities explicit

	Original rule:
	[4] -> [4] : c'=n2+c+n2*n1-y+x, x'=-n2+y, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1-n2-(-1+n2)*n1+2*y > 0 /\ 1-n2-(-1+n2)*n1-n1+2*y > 0 /\ 1+2*y > 0 /\ -1+n2-(-1+n2)*n1 >= 0 /\ -1-y+x >= 0 /\ 2-n1 > 0 /\ -1+n1 >= 0), cost: 1
	New rule:
	[4] -> [4] : c'=n2+c+n2*n1-y+x, x'=-n2+y, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1-n2-(-1+n2)*n1+2*y > 0 /\ 1-n2-(-1+n2)*n1-n1+2*y > 0 /\ 1+2*y > 0 /\ -1+n2-(-1+n2)*n1 >= 0 /\ -1-y+x >= 0 /\ 2-n1 > 0 /\ -1+n1 >= 0 /\ -1+n1 == 0), cost: 1
	
	Propagated Equalities

	Original rule:
	[4] -> [4] : c'=n2+c+n2*n1-y+x, x'=-n2+y, y'=-n2*n1+y, (-1+n2 >= 0 /\ 1-n2-(-1+n2)*n1+2*y > 0 /\ 1-n2-(-1+n2)*n1-n1+2*y > 0 /\ 1+2*y > 0 /\ -1+n2-(-1+n2)*n1 >= 0 /\ -1-y+x >= 0 /\ 2-n1 > 0 /\ -1+n1 >= 0 /\ -1+n1 == 0), cost: 1
	New rule:
	[4] -> [4] : c'=2*n2+c-y+x, x'=-n2+y, y'=-n2+y, (0 >= 0 /\ 0 == 0 /\ 1 > 0 /\ -1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0), cost: 1
	
		propagated equality n1 = 1
		
	Simplified Guard

	Original rule:
	[4] -> [4] : c'=2*n2+c-y+x, x'=-n2+y, y'=-n2+y, (0 >= 0 /\ 0 == 0 /\ 1 > 0 /\ -1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0), cost: 1
	New rule:
	[4] -> [4] : c'=2*n2+c-y+x, x'=-n2+y, y'=-n2+y, (-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0), cost: 1

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {32[T]}]

Step with 17

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {32[T]}, {}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}]

Step with 3

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {}]

Step with 7

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {}]

Step with 25

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {}]

Acceleration Failed

marked recursive suffix as redundant

Step with 3

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}]

Step with 7

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}, {}]

Step with 26

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}, {25[T]}, {}]

Covered

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {}, {7[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {3[T]}]

Step with 29

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 31[T]}, {29[T]}]

Covered

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}]

Step with 30

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}, {30[T]}]

Covered

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 30[T], 31[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {21[T]}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {17[T], 32[T]}, {7[T], 21[T]}]

Backtrack

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 32[T]}]

Step with 28

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 30[T], 32[T]}, {28[T]}]

Covered

	Trace

	19[T], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T]}, {3[T], 17[T], 28[T], 30[T], 32[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}]

Step with 31

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {31[T]}]

Step with 32

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 32[(-1+n2 >= 0 /\ 2-2*n2+2*y > 0 /\ 1-2*n2+2*y > 0 /\ 1+2*y > 0 /\ -1-y+x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {29[T], 30[T], 31[T]}, {32[T]}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {29[T], 30[T], 31[T], 32[T]}]

Step with 17

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {29[T], 30[T], 31[T], 32[T]}, {}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}]

Step with 3

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}]

Step with 7

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {}]

Step with 25

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {}]

Step with 3

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {}, {}]

Step with 7

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {}, {}, {}]

Step with 26

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T]}, {}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {}, {}, {25[T], 26[-y+x < 0]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {}, {7[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {3[T]}]

Step with 29

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 31[T]}, {29[T]}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}]

Step with 30

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 31[T]}, {30[T]}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {}, {3[T], 28[T], 29[T], 30[T], 31[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {7[T]}]

Step with 21

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 21[(-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {7[T]}, {}]

Step with 22

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 21[(-y+x > 0)], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {7[T]}, {}, {}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)], 21[(-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {7[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {17[T], 29[T], 30[T], 31[T], 32[T]}, {7[T], 21[T]}]

Backtrack

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {3[T], 17[T], 29[T], 30[T], 31[T], 32[T]}]

Step with 28

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {3[T], 17[T], 29[T], 30[T], 31[T], 32[T]}, {28[T]}]

Covered

	Trace

	19[T], 31[(1-n15+y+x > 0 /\ -1+n15 >= 0 /\ 1-n15-y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 32[T]}, {3[T], 17[T], 28[T], 29[T], 30[T], 31[T], 32[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}]

Step with 29

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {29[T]}]

Step with 30

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 30[(y-x >= 0 /\ -1+n6 >= 0 /\ 1+2*x > 0 /\ 2-2*n6+2*x > 0 /\ -1+y-x >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {29[T]}, {30[T]}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {29[T], 30[T]}]

Step with 17

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 17[(y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {29[T], 30[T], 32[T]}, {}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}]

Step with 3

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {}]

Step with 7

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}]

Step with 26

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {14[T]}]

Step with 27

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 26[(-y+x < 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[-y+x < 0]}]

Step with 25

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}]

Step with 27

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}]

Step with 14

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {}]

Step with 22

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T], 22[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {}, {}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)], 14[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {27[T]}, {22[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)], 27[(y-x >= 0 /\ 1-n+y+x > 0 /\ -1+n >= 0 /\ 1-n+y-x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {14[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)], 25[(-y+x == 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {26[T]}, {14[T], 27[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)], 7[(-y+x <= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {21[T]}, {25[T], 26[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 3[(y+x > 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {17[T], 29[T], 30[T], 32[T]}, {7[T], 21[T]}]

Backtrack

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {3[T], 17[T], 29[T], 30[T], 32[T]}]

Step with 28

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)], 28[(-1+n2 >= 0 /\ 1+y-x >= 0 /\ y-x >= 0 /\ -y+x >= 0 /\ 2-n1+y-x > 0 /\ 1-n2-(-1+n2)*n1-n1+y+x > 0 /\ 1-n2-(-1+n2)*n1+y+x > 0 /\ -1+n2-(-1+n2)*n1+y-x >= 0 /\ -1+n1 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {3[T], 17[T], 29[T], 30[T], 32[T]}, {28[T]}]

Covered

	Trace

	19[T], 29[(1+y-n4-x > 0 /\ y-x >= 0 /\ 1+y-n4+x > 0 /\ -1+n4 >= 0)]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 30[T], 31[T], 32[T]}, {3[T], 17[T], 28[T], 29[T], 30[T], 32[T]}]

Backtrack

	Trace

	19[T]
	
	Blocked

	[{}, {3[T], 17[T], 28[T], 29[T], 30[T], 31[T], 32[T]}]

Backtrack

	Trace

	Blocked

	[{19[T]}]

Accept

unknown

Build SHA: a05f16bf13df659c382799650051f91bf6828c7b