unknown Initial ITS Start location: [1] Program variables: tmp x 0: [1] -> [2] : x'=nondet, T, cost: 1 1: [2] -> [3] : tmp'=nondet1, T, cost: 1 2: [3] -> [4] : (-2*tmp+x == 0 /\ x > 0), cost: 1 6: [3] -> [7] : (-2*tmp+x < 0 \/ -2*tmp+x > 0 \/ x <= 0), cost: 1 3: [4] -> [5] : x'=-1+x, T, cost: 1 4: [5] -> [6] : tmp'=nondet2, T, cost: 1 5: [6] -> [3] : T, cost: 1 Chained Linear Paths Start location: [1] Program variables: tmp x 7: [1] -> [3] : tmp'=nondet1, x'=nondet, T, cost: 1 6: [3] -> [7] : (-2*tmp+x < 0 \/ -2*tmp+x > 0 \/ x <= 0), cost: 1 10: [3] -> [3] : tmp'=nondet2, x'=-1+x, (-2*tmp+x == 0 /\ x > 0), cost: 1 Eliminating location [2] by chaining: Applied chaining First rule: [1] -> [2] : x'=nondet, T, cost: 1 Second rule: [2] -> [3] : tmp'=nondet1, T, cost: 1 New rule: [1] -> [3] : tmp'=nondet1, x'=nondet, T, cost: 1 Applied deletion Removed the following rules: 0 1 Eliminating location [4] by chaining: Applied chaining First rule: [3] -> [4] : (-2*tmp+x == 0 /\ x > 0), cost: 1 Second rule: [4] -> [5] : x'=-1+x, T, cost: 1 New rule: [3] -> [5] : x'=-1+x, (-2*tmp+x == 0 /\ x > 0), cost: 1 Applied deletion Removed the following rules: 2 3 Eliminating location [5] by chaining: Applied chaining First rule: [3] -> [5] : x'=-1+x, (-2*tmp+x == 0 /\ x > 0), cost: 1 Second rule: [5] -> [6] : tmp'=nondet2, T, cost: 1 New rule: [3] -> [6] : tmp'=nondet2, x'=-1+x, (-2*tmp+x == 0 /\ x > 0), cost: 1 Applied deletion Removed the following rules: 4 8 Eliminating location [6] by chaining: Applied chaining First rule: [3] -> [6] : tmp'=nondet2, x'=-1+x, (-2*tmp+x == 0 /\ x > 0), cost: 1 Second rule: [6] -> [3] : T, cost: 1 New rule: [3] -> [3] : tmp'=nondet2, x'=-1+x, (-2*tmp+x == 0 /\ x > 0), cost: 1 Applied deletion Removed the following rules: 5 9 Step with 7 Trace 7[T] Blocked [{}, {}] Step with 6 Trace 7[T], 6[(-2*tmp+x > 0)] Blocked [{}, {}, {}] Backtrack Trace 7[T] Blocked [{}, {6[-2*tmp+x > 0]}] Step with 6 Trace 7[T], 6[(-2*tmp+x < 0)] Blocked [{}, {6[-2*tmp+x > 0]}, {}] Backtrack Trace 7[T] Blocked [{}, {6[(-2*tmp+x < 0 /\ -2*tmp+x > 0)]}] Step with 6 Trace 7[T], 6[(x <= 0)] Blocked [{}, {6[(-2*tmp+x < 0 /\ -2*tmp+x > 0)]}, {}] Backtrack Trace 7[T] Blocked [{}, {6[(-2*tmp+x < 0 /\ -2*tmp+x > 0 /\ x <= 0)]}] Step with 10 Trace 7[T], 10[(-2*tmp+x == 0 /\ x > 0)] Blocked [{}, {6[T]}, {}] Acceleration Failed marked recursive suffix as redundant Step with 6 Trace 7[T], 10[(-2*tmp+x == 0 /\ x > 0)], 6[(-2*tmp+x > 0)] Blocked [{}, {6[T]}, {10[T]}, {}] Backtrack Trace 7[T], 10[(-2*tmp+x == 0 /\ x > 0)] Blocked [{}, {6[T]}, {6[-2*tmp+x > 0], 10[T]}] Step with 6 Trace 7[T], 10[(-2*tmp+x == 0 /\ x > 0)], 6[(-2*tmp+x < 0)] Blocked [{}, {6[T]}, {6[-2*tmp+x > 0], 10[T]}, {}] Backtrack Trace 7[T], 10[(-2*tmp+x == 0 /\ x > 0)] Blocked [{}, {6[T]}, {6[(-2*tmp+x < 0 /\ -2*tmp+x > 0)], 10[T]}] Backtrack Trace 7[T] Blocked [{}, {6[T], 10[T]}] Backtrack Trace Blocked [{7[T]}] Accept unknown Build SHA: a05f16bf13df659c382799650051f91bf6828c7b