unknown

Initial ITS

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

Chained Linear Paths

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

	Applied chaining

	First rule:
	[4] -> [6] : x >= 0, cost: 1
	Second rule:
	[6] -> [7] : x'=-1+x, T, cost: 1
	New rule:
	[4] -> [7] : x'=-1+x, x >= 0, cost: 1
	
	Applied deletion

	Removed the following rules: 3 4
	
	Eliminating location [8] by chaining:

	Applied chaining

	First rule:
	[4] -> [8] : x < 0, cost: 1
	Second rule:
	[8] -> [9] : y'=-1+y, T, cost: 1
	New rule:
	[4] -> [9] : y'=-1+y, x < 0, cost: 1
	
	Applied deletion

	Removed the following rules: 6 7
	
	Eliminating location [7] by chaining:

	Applied chaining

	First rule:
	[4] -> [7] : x'=-1+x, x >= 0, cost: 1
	Second rule:
	[7] -> [5] : T, cost: 1
	New rule:
	[4] -> [5] : x'=-1+x, x >= 0, cost: 1
	
	Applied deletion

	Removed the following rules: 5 12
	
	Eliminating location [9] by chaining:

	Applied chaining

	First rule:
	[4] -> [9] : y'=-1+y, x < 0, cost: 1
	Second rule:
	[9] -> [5] : T, cost: 1
	New rule:
	[4] -> [5] : y'=-1+y, x < 0, cost: 1
	
	Applied deletion

	Removed the following rules: 8 13

Step with 11

	Trace

	11[T]
	
	Blocked

	[{}, {}]

Step with 10

	Trace

	11[T], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {}, {}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {10[T]}]

Step with 2

	Trace

	11[T], 2[(y >= 0)]
	
	Blocked

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

Step with 14

	Trace

	11[T], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

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

Step with 9

	Trace

	11[T], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

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

Accelerate

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

	Loop Acceleration

	Original rule:
	[3] -> [3] : x'=-1+x, (y >= 0 /\ x >= 0), cost: 1
	New rule:
	[3] -> [3] : x'=-n+x, (1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0), cost: 1

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

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {10[T]}, {16[T]}]

Step with 2

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {}]

Step with 14

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {}, {}]

Step with 9

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {14[T]}]

Step with 15

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {14[T]}, {}, {}]

Accelerate

Start location: [1]
Program variables: x y
  11: [1] -> [3] : x'=nondet, y'=nondet1, T, cost: 1
   2: [3] -> [4] : (y >= 0 \/ x >= 0), cost: 1
  10: [3] -> [10] : (y < 0 /\ x < 0), cost: 1
  16: [3] -> [3] : x'=-n+x, (1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0), cost: 1
  17: [3] -> [3] : y'=-n2+y, (-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0), cost: 1
  14: [4] -> [5] : x'=-1+x, x >= 0, cost: 1
  15: [4] -> [5] : y'=-1+y, x < 0, cost: 1
   9: [5] -> [3] : T, cost: 1

	Loop Acceleration

	Original rule:
	[3] -> [3] : y'=-1+y, (y >= 0 /\ x < 0), cost: 1
	New rule:
	[3] -> [3] : y'=-n2+y, (-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0), cost: 1

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

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {17[T]}]

Acceleration Failed

marked recursive suffix as redundant

Step with 10

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {17[T]}, {}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {10[T], 17[T]}]

Step with 2

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {10[T], 17[T]}, {}]

Step with 15

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {10[T], 17[T]}, {}, {}]

Step with 9

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {10[T], 17[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {10[T], 17[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {10[T], 17[T]}, {15[T]}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T]}, {2[y >= 0], 10[T], 17[T]}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}]

Step with 2

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {}]

Step with 15

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {}, {}]

Step with 9

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {15[T]}]

Step with 14

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {15[T]}, {}]

Step with 9

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {15[T]}, {}, {}]

Covered

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {15[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T]}, {10[T], 16[T], 17[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {10[T]}, {2[y >= 0], 10[T], 16[T], 17[T]}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {10[T], 16[T]}]

Step with 2

	Trace

	11[T], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T], 16[T]}, {}]

Step with 14

	Trace

	11[T], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {10[T], 16[T]}, {}, {}]

Step with 9

	Trace

	11[T], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {10[T], 16[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {10[T], 16[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T], 16[T]}, {14[T]}]

Step with 15

	Trace

	11[T], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {10[T], 16[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {10[T], 16[T]}, {14[T]}, {}, {}]

Covered

	Trace

	11[T], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {10[T], 16[T]}, {14[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 2[(y >= 0)]
	
	Blocked

	[{}, {10[T], 16[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}]

Step with 2

	Trace

	11[T], 2[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {}]

Step with 14

	Trace

	11[T], 2[(x >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {15[T]}, {}]

Step with 9

	Trace

	11[T], 2[(x >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {15[T]}, {}, {}]

Accelerate

Start location: [1]
Program variables: x y
  11: [1] -> [3] : x'=nondet, y'=nondet1, T, cost: 1
   2: [3] -> [4] : (y >= 0 \/ x >= 0), cost: 1
  10: [3] -> [10] : (y < 0 /\ x < 0), cost: 1
  16: [3] -> [3] : x'=-n+x, (1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0), cost: 1
  17: [3] -> [3] : y'=-n2+y, (-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0), cost: 1
  18: [3] -> [3] : x'=-n3+x, (1-n3+x >= 0 /\ -1+n3 >= 0), cost: 1
  14: [4] -> [5] : x'=-1+x, x >= 0, cost: 1
  15: [4] -> [5] : y'=-1+y, x < 0, cost: 1
   9: [5] -> [3] : T, cost: 1

	Loop Acceleration

	Original rule:
	[3] -> [3] : x'=-1+x, x >= 0, cost: 1
	New rule:
	[3] -> [3] : x'=-n3+x, (1-n3+x >= 0 /\ -1+n3 >= 0), cost: 1

		x >= 0 [0]: montonic decrease yields 1-n3+x >= 0
		
		x >= 0 [1]: eventual increase yields (1 <= 0 /\ x >= 0)
		
		Replacement map: {x >= 0 -> 1-n3+x >= 0}

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {18[T]}]

Step with 10

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {18[T]}, {}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}]

Step with 2

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {}]

Step with 14

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {}, {}]

Step with 9

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {14[T]}]

Step with 15

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {14[T]}, {}, {}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {14[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 18[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 18[T]}]

Step with 2

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 18[T]}, {}]

Step with 14

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 18[T]}, {15[T]}, {}]

Step with 9

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 18[T]}, {15[T]}, {}, {}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 18[T]}, {15[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 18[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[(y >= 0 /\ x >= 0)], 10[T], 18[T]}]

Step with 16

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 18[T]}, {16[T]}]

Accelerate

Start location: [1]
Program variables: x y
  11: [1] -> [3] : x'=nondet, y'=nondet1, T, cost: 1
   2: [3] -> [4] : (y >= 0 \/ x >= 0), cost: 1
  10: [3] -> [10] : (y < 0 /\ x < 0), cost: 1
  16: [3] -> [3] : x'=-n+x, (1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0), cost: 1
  17: [3] -> [3] : y'=-n2+y, (-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0), cost: 1
  18: [3] -> [3] : x'=-n3+x, (1-n3+x >= 0 /\ -1+n3 >= 0), cost: 1
  19: [3] -> [3] : x'=-n*n5-n5*n31+x, (-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0), cost: 1
  14: [4] -> [5] : x'=-1+x, x >= 0, cost: 1
  15: [4] -> [5] : y'=-1+y, x < 0, cost: 1
   9: [5] -> [3] : T, cost: 1

	Loop Acceleration

	Original rule:
	[3] -> [3] : x'=-n-n31+x, (-1+n31 >= 0 /\ 1-n31+x >= 0 /\ -1+n >= 0 /\ 1-n-n31+x >= 0 /\ y >= 0), cost: 1
	New rule:
	[3] -> [3] : x'=-n*n5-n5*n31+x, (-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0), cost: 1

		-1+n31 >= 0 [0]: monotonic increase yields -1+n31 >= 0
		
		1-n31+x >= 0 [0]: montonic decrease yields 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0, dependencies: -1+n31 >= 0 -1+n >= 0
		
		1-n31+x >= 0 [1]: eventual decrease yields (1-n31+x >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0), dependencies: -1+n31 >= 0 -1+n >= 0
		
		1-n31+x >= 0 [2]: eventual increase yields (1-n31+x >= 0 /\ n+n31 <= 0), dependencies: -1+n31 >= 0 -1+n >= 0
		
		-1+n >= 0 [0]: monotonic increase yields -1+n >= 0
		
		1-n-n31+x >= 0 [0]: montonic decrease yields 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0, dependencies: -1+n31 >= 0 -1+n >= 0
		
		1-n-n31+x >= 0 [1]: eventual increase yields (n+n31 <= 0 /\ 1-n-n31+x >= 0), dependencies: -1+n31 >= 0 -1+n >= 0
		
		y >= 0 [0]: monotonic increase yields y >= 0
		
		Replacement map: {-1+n31 >= 0 -> -1+n31 >= 0, 1-n31+x >= 0 -> 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0, -1+n >= 0 -> -1+n >= 0, 1-n-n31+x >= 0 -> 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0, y >= 0 -> y >= 0}

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {19[T]}]

Step with 2

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {}]

Step with 14

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {}, {}]

Step with 9

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {14[T]}]

Step with 15

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {14[T]}, {}, {}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {14[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 19[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 19[T]}]

Step with 16

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 19[T]}, {16[T]}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}]

Step with 17

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {17[T]}]

Acceleration Failed

marked recursive suffix as redundant

Step with 10

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {17[T], 18[T], 19[T]}, {}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {10[T], 17[T], 18[T], 19[T]}]

Step with 2

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {10[T], 17[T], 18[T], 19[T]}, {}]

Step with 15

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {10[T], 17[T], 18[T], 19[T]}, {}, {}]

Step with 9

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {10[T], 17[T], 18[T], 19[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {10[T], 17[T], 18[T], 19[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {10[T], 17[T], 18[T], 19[T]}, {15[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 19[T]}, {2[y >= 0], 10[T], 17[T], 18[T], 19[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 17[T], 19[T]}]

Step with 18

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 17[T], 19[T]}, {18[T]}]

Accelerate

Start location: [1]
Program variables: x y
  11: [1] -> [3] : x'=nondet, y'=nondet1, T, cost: 1
   2: [3] -> [4] : (y >= 0 \/ x >= 0), cost: 1
  10: [3] -> [10] : (y < 0 /\ x < 0), cost: 1
  16: [3] -> [3] : x'=-n+x, (1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0), cost: 1
  17: [3] -> [3] : y'=-n2+y, (-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0), cost: 1
  18: [3] -> [3] : x'=-n3+x, (1-n3+x >= 0 /\ -1+n3 >= 0), cost: 1
  19: [3] -> [3] : x'=-n*n5-n5*n31+x, (-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0), cost: 1
  20: [3] -> [3] : x'=-n51*n8*n311-n51*n6*n8-n8*n3+x, (-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0), cost: 1
  14: [4] -> [5] : x'=-1+x, x >= 0, cost: 1
  15: [4] -> [5] : y'=-1+y, x < 0, cost: 1
   9: [5] -> [3] : T, cost: 1

	Loop Acceleration

	Original rule:
	[3] -> [3] : x'=-n51*n6-n51*n311-n3+x, (-1+n6 >= 0 /\ 1-(-1+n51)*n311-n311-(-1+n51)*n6+x >= 0 /\ 1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*n6-n51*n311-n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0), cost: 1
	New rule:
	[3] -> [3] : x'=-n51*n8*n311-n51*n6*n8-n8*n3+x, (-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0), cost: 1

		-1+n6 >= 0 [0]: monotonic increase yields -1+n6 >= 0
		
		1-(-1+n51)*n311-n311-(-1+n51)*n6+x >= 0 [0]: montonic decrease yields 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0, dependencies: -1+n6 >= 0 1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0
		
		1-(-1+n51)*n311-n311-(-1+n51)*n6+x >= 0 [1]: eventual decrease yields (1-(-1+n51)*n311-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0)
		
		1-(-1+n51)*n311-n311-(-1+n51)*n6+x >= 0 [2]: eventual increase yields (1-(-1+n51)*n311-n311-(-1+n51)*n6+x >= 0 /\ n51*n6+n51*n311+n3 <= 0)
		
		1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0 [0]: montonic decrease yields 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0, dependencies: -1+n3 >= 0 1-n51*n6-n51*n311-n3+x >= 0
		
		1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0 [1]: eventual decrease yields (1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0)
		
		1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0 [2]: eventual increase yields (1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0 /\ n51*n6+n51*n311+n3 <= 0)
		
		-1+n51 >= 0 [0]: monotonic increase yields -1+n51 >= 0
		
		-1+n3 >= 0 [0]: monotonic increase yields -1+n3 >= 0
		
		1-n51*n6-n51*n311-n3+x >= 0 [0]: montonic decrease yields 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0, dependencies: -1+n6 >= 0 -1+n51 >= 0 -1+n3 >= 0 -1+n311 >= 0
		
		1-n51*n6-n51*n311-n3+x >= 0 [1]: eventual decrease yields (1-n51*n6-n51*n311-n3+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0)
		
		1-n51*n6-n51*n311-n3+x >= 0 [2]: eventual increase yields (n51*n6+n51*n311+n3 <= 0 /\ 1-n51*n6-n51*n311-n3+x >= 0)
		
		-1+n311 >= 0 [0]: monotonic increase yields -1+n311 >= 0
		
		y >= 0 [0]: monotonic increase yields y >= 0
		
		Replacement map: {-1+n6 >= 0 -> -1+n6 >= 0, 1-(-1+n51)*n311-n311-(-1+n51)*n6+x >= 0 -> 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0, 1-(-1+n51)*n311-n6-n311-(-1+n51)*n6+x >= 0 -> 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0, -1+n51 >= 0 -> -1+n51 >= 0, -1+n3 >= 0 -> -1+n3 >= 0, 1-n51*n6-n51*n311-n3+x >= 0 -> 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0, -1+n311 >= 0 -> -1+n311 >= 0, y >= 0 -> y >= 0}

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {20[T]}]

Step with 2

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {}]

Step with 15

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {}, {}]

Step with 9

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {15[T]}]

Step with 14

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {15[T]}, {}]

Step with 9

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {15[T]}, {}, {}]

Covered

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {15[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {10[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[y >= 0], 10[T], 20[T]}]

Step with 16

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 20[T]}, {16[T]}]

Covered

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}]

Step with 17

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {17[T]}]

Acceleration Failed

marked recursive suffix as redundant

Step with 10

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {17[T], 18[T], 19[T], 20[T]}, {}]

Backtrack

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}]

Step with 2

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {}]

Step with 15

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}, {}]

Covered

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 20[T]}, {2[y >= 0], 10[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 17[T], 20[T]}]

Step with 18

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 17[T], 20[T]}, {18[T]}]

Covered

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 17[T], 18[T], 20[T]}]

Step with 19

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 17[T], 18[T], 20[T]}, {19[T]}]

Covered

	Trace

	11[T], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T]}, {2[T], 10[T], 16[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}]

Step with 19

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {19[T]}]

Step with 20

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {19[T]}, {20[T]}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {19[T], 20[T]}]

Step with 2

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {}]

Step with 15

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {}, {}]

Step with 9

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {15[T]}]

Step with 14

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {15[T]}, {}]

Step with 9

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {15[T]}, {}, {}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {15[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {10[T], 19[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[y >= 0], 10[T], 19[T], 20[T]}]

Step with 16

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 19[T], 20[T]}, {16[T]}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}]

Step with 17

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {17[T]}]

Step with 10

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {17[T], 18[T], 19[T], 20[T]}, {}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}]

Step with 2

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {}]

Step with 15

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}, {}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 17[T], 19[T], 20[T]}]

Step with 18

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 17[T], 19[T], 20[T]}, {18[T]}]

Covered

	Trace

	11[T], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 20[T]}, {2[T], 10[T], 16[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}]

Step with 18

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {18[T]}]

Step with 19

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 19[(-1+n5 >= 0 /\ -1+n31 >= 0 /\ -1+n >= 0 /\ 1-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ 1-n-n31-(-1+n5)*n31-(-1+n5)*n+x >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {18[T]}, {19[T]}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {18[T], 19[T]}]

Step with 20

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 20[(-1+n6 >= 0 /\ -1+n8 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ -1+n51 >= 0 /\ -1+n3 >= 0 /\ 1-n51*(-1+n8)*n6-(-1+n51)*n311-n51*(-1+n8)*n311-n6-(-1+n8)*n3-n311-(-1+n51)*n6+x >= 0 /\ 1-n51*n6-n51*(-1+n8)*n6-n51*(-1+n8)*n311-n51*n311-n3-(-1+n8)*n3+x >= 0 /\ -1+n311 >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {18[T], 19[T]}, {20[T]}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {18[T], 19[T], 20[T]}]

Step with 10

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {18[T], 19[T], 20[T]}, {}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}]

Step with 2

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {}]

Step with 15

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {}, {}]

Step with 9

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {15[T]}]

Step with 14

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {15[T]}, {}]

Step with 9

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {15[T]}, {}, {}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {15[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {10[T], 18[T], 19[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 18[T], 19[T], 20[T]}]

Step with 2

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 18[T], 19[T], 20[T]}, {}]

Step with 14

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 18[T], 19[T], 20[T]}, {}, {}]

Step with 9

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 18[T], 19[T], 20[T]}, {}, {}, {}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 18[T], 19[T], 20[T]}, {}, {9[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 2[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 18[T], 19[T], 20[T]}, {14[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[(y >= 0 /\ x >= 0)], 10[T], 18[T], 19[T], 20[T]}]

Step with 16

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 16[(1-n+x >= 0 /\ -1+n >= 0 /\ y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 18[T], 19[T], 20[T]}, {16[T]}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}]

Step with 17

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {17[T]}]

Acceleration Failed

marked recursive suffix as redundant

Step with 10

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {17[T], 18[T], 19[T], 20[T]}, {}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}]

Step with 2

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {}]

Step with 15

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}, {}]

Covered

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	11[T], 18[(1-n3+x >= 0 /\ -1+n3 >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 19[T], 20[T]}, {2[T], 10[T], 16[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 18[T], 19[T], 20[T]}]

Step with 2

	Trace

	11[T], 2[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 18[T], 19[T], 20[T]}, {}]

Step with 14

	Trace

	11[T], 2[(x >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 18[T], 19[T], 20[T]}, {15[T]}, {}]

Step with 9

	Trace

	11[T], 2[(x >= 0)], 14[(x >= 0)], 9[T]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 18[T], 19[T], 20[T]}, {15[T]}, {}, {}]

Covered

	Trace

	11[T], 2[(x >= 0)], 14[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 18[T], 19[T], 20[T]}, {15[T]}, {9[T]}]

Backtrack

	Trace

	11[T], 2[(x >= 0)]
	
	Blocked

	[{}, {2[y >= 0], 10[T], 16[T], 18[T], 19[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {2[(y >= 0 /\ x >= 0)], 10[T], 16[T], 18[T], 19[T], 20[T]}]

Step with 17

	Trace

	11[T], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {17[T]}]

Step with 10

	Trace

	11[T], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 10[(y < 0 /\ x < 0)]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {17[T], 18[T], 19[T], 20[T]}, {}]

Backtrack

	Trace

	11[T], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}]

Step with 2

	Trace

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

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {}]

Step with 15

	Trace

	11[T], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}]

Step with 9

	Trace

	11[T], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)], 9[T]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {}, {}]

Covered

	Trace

	11[T], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)], 2[(y >= 0)], 15[(x < 0)]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T]}, {9[T]}]

Backtrack

	Trace

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

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {10[T], 17[T], 18[T], 19[T], 20[T]}, {14[T], 15[T]}]

Backtrack

	Trace

	11[T], 17[(-1+n2 >= 0 /\ 1-n2+y >= 0 /\ -x > 0)]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 18[T], 19[T], 20[T]}, {2[y >= 0], 10[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	11[T]
	
	Blocked

	[{}, {2[T], 10[T], 16[T], 17[T], 18[T], 19[T], 20[T]}]

Backtrack

	Trace

	Blocked

	[{11[T]}]

Accept

unknown

Build SHA: a05f16bf13df659c382799650051f91bf6828c7b