unknown Initial ITS Start location: l4 Program variables: i!14^0 i!22^0 result!12^0 temp0!15^0 0: l0 -> l1 : i!14^0'=i!14^post1, i!22^0'=i!22^post1, result!12^0'=result!12^post1, temp0!15^0'=temp0!15^post1, (-1+i!14^post1-i!14^2 == 0 /\ -9+i!14^2 <= 0 /\ result!12^0-result!12^post1 == 0 /\ 2-i!14^post1 <= 0 /\ -i!14^1 <= 0 /\ -i!22^post1+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ -2+i!14^post1 <= 0 /\ -temp0!15^post1+temp0!15^0 == 0 /\ 1-i!14^2 <= 0 /\ -1+i!14^2 <= 0), cost: 1 1: l1 -> l2 : i!14^0'=i!14^post2, i!22^0'=i!22^post2, result!12^0'=result!12^post2, temp0!15^0'=temp0!15^post2, (10-i!14^0 <= 0 /\ -i!14^post2+i!14^0 == 0 /\ i!22^0-i!22^post2 == 0 /\ result!12^post2-temp0!15^0 == 0 /\ -temp0!15^post2+temp0!15^0 == 0), cost: 1 2: l1 -> l3 : i!14^0'=i!14^post3, i!22^0'=i!22^post3, result!12^0'=result!12^post3, temp0!15^0'=temp0!15^post3, (-9+i!14^0 <= 0 /\ result!12^0-result!12^post3 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ -1-i!14^0+i!14^post3 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 3: l3 -> l1 : i!14^0'=i!14^post4, i!22^0'=i!22^post4, result!12^0'=result!12^post4, temp0!15^0'=temp0!15^post4, (i!14^0-i!14^post4 == 0 /\ result!12^0-result!12^post4 == 0 /\ -temp0!15^post4+temp0!15^0 == 0 /\ -i!22^post4+i!22^0 == 0), cost: 1 4: l4 -> l0 : i!14^0'=i!14^post5, i!22^0'=i!22^post5, result!12^0'=result!12^post5, temp0!15^0'=temp0!15^post5, (-i!14^post5+i!14^0 == 0 /\ -i!22^post5+i!22^0 == 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ result!12^0-result!12^post5 == 0), cost: 1 Chained Linear Paths Start location: l4 Program variables: i!14^0 i!22^0 result!12^0 temp0!15^0 1: l1 -> l2 : i!14^0'=i!14^post2, i!22^0'=i!22^post2, result!12^0'=result!12^post2, temp0!15^0'=temp0!15^post2, (10-i!14^0 <= 0 /\ -i!14^post2+i!14^0 == 0 /\ i!22^0-i!22^post2 == 0 /\ result!12^post2-temp0!15^0 == 0 /\ -temp0!15^post2+temp0!15^0 == 0), cost: 1 6: l1 -> l1 : i!14^0'=i!14^post4, i!22^0'=i!22^post4, result!12^0'=result!12^post4, temp0!15^0'=temp0!15^post4, (-9+i!14^0 <= 0 /\ -i!22^post4+i!22^post3 == 0 /\ result!12^0-result!12^post3 == 0 /\ i!14^post3-i!14^post4 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ -1-i!14^0+i!14^post3 == 0 /\ result!12^post3-result!12^post4 == 0 /\ temp0!15^post3-temp0!15^post4 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 5: l4 -> l1 : i!14^0'=i!14^post1, i!22^0'=i!22^post1, result!12^0'=result!12^post1, temp0!15^0'=temp0!15^post1, (-1+i!14^post1-i!14^2 == 0 /\ -9+i!14^2 <= 0 /\ -i!14^post5+i!14^0 == 0 /\ 2-i!14^post1 <= 0 /\ -i!14^1 <= 0 /\ result!12^post5-result!12^post1 == 0 /\ -i!22^post1+i!22^post5 == 0 /\ -i!22^post5+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ -temp0!15^post1+temp0!15^post5 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ -2+i!14^post1 <= 0 /\ 1-i!14^2 <= 0 /\ -1+i!14^2 <= 0 /\ result!12^0-result!12^post5 == 0), cost: 1 Eliminating location l0 by chaining: Applied chaining First rule: l4 -> l0 : i!14^0'=i!14^post5, i!22^0'=i!22^post5, result!12^0'=result!12^post5, temp0!15^0'=temp0!15^post5, (-i!14^post5+i!14^0 == 0 /\ -i!22^post5+i!22^0 == 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ result!12^0-result!12^post5 == 0), cost: 1 Second rule: l0 -> l1 : i!14^0'=i!14^post1, i!22^0'=i!22^post1, result!12^0'=result!12^post1, temp0!15^0'=temp0!15^post1, (-1+i!14^post1-i!14^2 == 0 /\ -9+i!14^2 <= 0 /\ result!12^0-result!12^post1 == 0 /\ 2-i!14^post1 <= 0 /\ -i!14^1 <= 0 /\ -i!22^post1+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ -2+i!14^post1 <= 0 /\ -temp0!15^post1+temp0!15^0 == 0 /\ 1-i!14^2 <= 0 /\ -1+i!14^2 <= 0), cost: 1 New rule: l4 -> l1 : i!14^0'=i!14^post1, i!22^0'=i!22^post1, result!12^0'=result!12^post1, temp0!15^0'=temp0!15^post1, (-1+i!14^post1-i!14^2 == 0 /\ -9+i!14^2 <= 0 /\ -i!14^post5+i!14^0 == 0 /\ 2-i!14^post1 <= 0 /\ -i!14^1 <= 0 /\ result!12^post5-result!12^post1 == 0 /\ -i!22^post1+i!22^post5 == 0 /\ -i!22^post5+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ -temp0!15^post1+temp0!15^post5 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ -2+i!14^post1 <= 0 /\ 1-i!14^2 <= 0 /\ -1+i!14^2 <= 0 /\ result!12^0-result!12^post5 == 0), cost: 1 Applied deletion Removed the following rules: 0 4 Eliminating location l3 by chaining: Applied chaining First rule: l1 -> l3 : i!14^0'=i!14^post3, i!22^0'=i!22^post3, result!12^0'=result!12^post3, temp0!15^0'=temp0!15^post3, (-9+i!14^0 <= 0 /\ result!12^0-result!12^post3 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ -1-i!14^0+i!14^post3 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 Second rule: l3 -> l1 : i!14^0'=i!14^post4, i!22^0'=i!22^post4, result!12^0'=result!12^post4, temp0!15^0'=temp0!15^post4, (i!14^0-i!14^post4 == 0 /\ result!12^0-result!12^post4 == 0 /\ -temp0!15^post4+temp0!15^0 == 0 /\ -i!22^post4+i!22^0 == 0), cost: 1 New rule: l1 -> l1 : i!14^0'=i!14^post4, i!22^0'=i!22^post4, result!12^0'=result!12^post4, temp0!15^0'=temp0!15^post4, (-9+i!14^0 <= 0 /\ -i!22^post4+i!22^post3 == 0 /\ result!12^0-result!12^post3 == 0 /\ i!14^post3-i!14^post4 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ -1-i!14^0+i!14^post3 == 0 /\ result!12^post3-result!12^post4 == 0 /\ temp0!15^post3-temp0!15^post4 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 Applied deletion Removed the following rules: 2 3 Simplified Transitions Start location: l4 Program variables: i!14^0 i!22^0 result!12^0 temp0!15^0 7: l1 -> l2 : result!12^0'=temp0!15^0, 10-i!14^0 <= 0, cost: 1 9: l1 -> l1 : i!14^0'=1+i!22^0, (-9+i!14^0 <= 0 /\ -9+i!22^0 <= 0 /\ -i!14^0+i!22^0 == 0), cost: 1 8: l4 -> l1 : i!14^0'=2, T, cost: 1 Propagated Equalities Original rule: l1 -> l2 : i!14^0'=i!14^post2, i!22^0'=i!22^post2, result!12^0'=result!12^post2, temp0!15^0'=temp0!15^post2, (10-i!14^0 <= 0 /\ -i!14^post2+i!14^0 == 0 /\ i!22^0-i!22^post2 == 0 /\ result!12^post2-temp0!15^0 == 0 /\ -temp0!15^post2+temp0!15^0 == 0), cost: 1 New rule: l1 -> l2 : i!14^0'=i!14^0, i!22^0'=i!22^0, result!12^0'=temp0!15^0, temp0!15^0'=temp0!15^0, (0 == 0 /\ 10-i!14^0 <= 0), cost: 1 propagated equality i!14^post2 = i!14^0 propagated equality i!22^post2 = i!22^0 propagated equality result!12^post2 = temp0!15^0 propagated equality temp0!15^post2 = temp0!15^0 Simplified Guard Original rule: l1 -> l2 : i!14^0'=i!14^0, i!22^0'=i!22^0, result!12^0'=temp0!15^0, temp0!15^0'=temp0!15^0, (0 == 0 /\ 10-i!14^0 <= 0), cost: 1 New rule: l1 -> l2 : i!14^0'=i!14^0, i!22^0'=i!22^0, result!12^0'=temp0!15^0, temp0!15^0'=temp0!15^0, 10-i!14^0 <= 0, cost: 1 Removed Trivial Updates Original rule: l1 -> l2 : i!14^0'=i!14^0, i!22^0'=i!22^0, result!12^0'=temp0!15^0, temp0!15^0'=temp0!15^0, 10-i!14^0 <= 0, cost: 1 New rule: l1 -> l2 : result!12^0'=temp0!15^0, 10-i!14^0 <= 0, cost: 1 made implied equalities explicit Original rule: l4 -> l1 : i!14^0'=i!14^post1, i!22^0'=i!22^post1, result!12^0'=result!12^post1, temp0!15^0'=temp0!15^post1, (-1+i!14^post1-i!14^2 == 0 /\ -9+i!14^2 <= 0 /\ -i!14^post5+i!14^0 == 0 /\ 2-i!14^post1 <= 0 /\ -i!14^1 <= 0 /\ result!12^post5-result!12^post1 == 0 /\ -i!22^post1+i!22^post5 == 0 /\ -i!22^post5+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ -temp0!15^post1+temp0!15^post5 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ -2+i!14^post1 <= 0 /\ 1-i!14^2 <= 0 /\ -1+i!14^2 <= 0 /\ result!12^0-result!12^post5 == 0), cost: 1 New rule: l4 -> l1 : i!14^0'=i!14^post1, i!22^0'=i!22^post1, result!12^0'=result!12^post1, temp0!15^0'=temp0!15^post1, (-1+i!14^post1-i!14^2 == 0 /\ -9+i!14^2 <= 0 /\ -i!14^post5+i!14^0 == 0 /\ 2-i!14^post1 <= 0 /\ 2-i!14^post1 == 0 /\ -i!14^1 <= 0 /\ -i!14^1 == 0 /\ result!12^post5-result!12^post1 == 0 /\ -i!22^post1+i!22^post5 == 0 /\ -i!22^post5+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ -temp0!15^post1+temp0!15^post5 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ -2+i!14^post1 <= 0 /\ 1-i!14^2 <= 0 /\ 1-i!14^2 == 0 /\ -1+i!14^2 <= 0 /\ result!12^0-result!12^post5 == 0), cost: 1 Propagated Equalities Original rule: l4 -> l1 : i!14^0'=i!14^post1, i!22^0'=i!22^post1, result!12^0'=result!12^post1, temp0!15^0'=temp0!15^post1, (-1+i!14^post1-i!14^2 == 0 /\ -9+i!14^2 <= 0 /\ -i!14^post5+i!14^0 == 0 /\ 2-i!14^post1 <= 0 /\ 2-i!14^post1 == 0 /\ -i!14^1 <= 0 /\ -i!14^1 == 0 /\ result!12^post5-result!12^post1 == 0 /\ -i!22^post1+i!22^post5 == 0 /\ -i!22^post5+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ -temp0!15^post1+temp0!15^post5 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ -2+i!14^post1 <= 0 /\ 1-i!14^2 <= 0 /\ 1-i!14^2 == 0 /\ -1+i!14^2 <= 0 /\ result!12^0-result!12^post5 == 0), cost: 1 New rule: l4 -> l1 : i!14^0'=1+i!14^2, i!22^0'=i!22^post5, result!12^0'=result!12^post5, temp0!15^0'=temp0!15^post5, (0 == 0 /\ -9+i!14^2 <= 0 /\ -i!14^post5+i!14^0 == 0 /\ -i!14^1 <= 0 /\ -i!14^1 == 0 /\ -i!22^post5+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ 1-i!14^2 <= 0 /\ 1-i!14^2 == 0 /\ -1+i!14^2 <= 0 /\ result!12^0-result!12^post5 == 0), cost: 1 propagated equality i!14^post1 = 1+i!14^2 propagated equality result!12^post1 = result!12^post5 propagated equality i!22^post1 = i!22^post5 propagated equality temp0!15^post1 = temp0!15^post5 Propagated Equalities Original rule: l4 -> l1 : i!14^0'=1+i!14^2, i!22^0'=i!22^post5, result!12^0'=result!12^post5, temp0!15^0'=temp0!15^post5, (0 == 0 /\ -9+i!14^2 <= 0 /\ -i!14^post5+i!14^0 == 0 /\ -i!14^1 <= 0 /\ -i!14^1 == 0 /\ -i!22^post5+i!22^0 == 0 /\ -1-i!14^1+i!14^2 == 0 /\ i!14^1 <= 0 /\ i!14^1 == 0 /\ -9+i!14^1 <= 0 /\ temp0!15^0-temp0!15^post5 == 0 /\ 1-i!14^2 <= 0 /\ 1-i!14^2 == 0 /\ -1+i!14^2 <= 0 /\ result!12^0-result!12^post5 == 0), cost: 1 New rule: l4 -> l1 : i!14^0'=2, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, (0 <= 0 /\ 0 == 0 /\ -9 <= 0 /\ -8 <= 0), cost: 1 propagated equality i!14^post5 = i!14^0 propagated equality i!14^1 = 0 propagated equality i!22^post5 = i!22^0 propagated equality i!14^2 = 1 propagated equality temp0!15^post5 = temp0!15^0 propagated equality result!12^post5 = result!12^0 Simplified Guard Original rule: l4 -> l1 : i!14^0'=2, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, (0 <= 0 /\ 0 == 0 /\ -9 <= 0 /\ -8 <= 0), cost: 1 New rule: l4 -> l1 : i!14^0'=2, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, T, cost: 1 Removed Trivial Updates Original rule: l4 -> l1 : i!14^0'=2, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, T, cost: 1 New rule: l4 -> l1 : i!14^0'=2, T, cost: 1 made implied equalities explicit Original rule: l1 -> l1 : i!14^0'=i!14^post4, i!22^0'=i!22^post4, result!12^0'=result!12^post4, temp0!15^0'=temp0!15^post4, (-9+i!14^0 <= 0 /\ -i!22^post4+i!22^post3 == 0 /\ result!12^0-result!12^post3 == 0 /\ i!14^post3-i!14^post4 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ -1-i!14^0+i!14^post3 == 0 /\ result!12^post3-result!12^post4 == 0 /\ temp0!15^post3-temp0!15^post4 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 New rule: l1 -> l1 : i!14^0'=i!14^post4, i!22^0'=i!22^post4, result!12^0'=result!12^post4, temp0!15^0'=temp0!15^post4, (-9+i!14^0 <= 0 /\ -i!22^post4+i!22^post3 == 0 /\ result!12^0-result!12^post3 == 0 /\ i!14^post3-i!14^post4 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ 1+i!22^0-i!14^post3 == 0 /\ -1-i!14^0+i!14^post3 == 0 /\ result!12^post3-result!12^post4 == 0 /\ temp0!15^post3-temp0!15^post4 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 Propagated Equalities Original rule: l1 -> l1 : i!14^0'=i!14^post4, i!22^0'=i!22^post4, result!12^0'=result!12^post4, temp0!15^0'=temp0!15^post4, (-9+i!14^0 <= 0 /\ -i!22^post4+i!22^post3 == 0 /\ result!12^0-result!12^post3 == 0 /\ i!14^post3-i!14^post4 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ 1+i!22^0-i!14^post3 == 0 /\ -1-i!14^0+i!14^post3 == 0 /\ result!12^post3-result!12^post4 == 0 /\ temp0!15^post3-temp0!15^post4 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 New rule: l1 -> l1 : i!14^0'=i!14^post3, i!22^0'=i!22^post3, result!12^0'=result!12^post3, temp0!15^0'=temp0!15^post3, (0 == 0 /\ -9+i!14^0 <= 0 /\ result!12^0-result!12^post3 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ 1+i!22^0-i!14^post3 == 0 /\ -1-i!14^0+i!14^post3 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 propagated equality i!22^post4 = i!22^post3 propagated equality i!14^post4 = i!14^post3 propagated equality result!12^post4 = result!12^post3 propagated equality temp0!15^post4 = temp0!15^post3 Propagated Equalities Original rule: l1 -> l1 : i!14^0'=i!14^post3, i!22^0'=i!22^post3, result!12^0'=result!12^post3, temp0!15^0'=temp0!15^post3, (0 == 0 /\ -9+i!14^0 <= 0 /\ result!12^0-result!12^post3 == 0 /\ 1+i!22^0-i!14^post3 <= 0 /\ 1+i!22^0-i!14^post3 == 0 /\ -1-i!14^0+i!14^post3 == 0 /\ -9+i!22^0 <= 0 /\ -1-i!22^0+i!14^post3 <= 0 /\ -temp0!15^post3+temp0!15^0 == 0 /\ i!22^0-i!22^post3 == 0), cost: 1 New rule: l1 -> l1 : i!14^0'=1+i!22^0, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, (0 <= 0 /\ 0 == 0 /\ -9+i!14^0 <= 0 /\ -9+i!22^0 <= 0 /\ -i!14^0+i!22^0 == 0), cost: 1 propagated equality result!12^post3 = result!12^0 propagated equality i!14^post3 = 1+i!22^0 propagated equality temp0!15^post3 = temp0!15^0 propagated equality i!22^post3 = i!22^0 Simplified Guard Original rule: l1 -> l1 : i!14^0'=1+i!22^0, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, (0 <= 0 /\ 0 == 0 /\ -9+i!14^0 <= 0 /\ -9+i!22^0 <= 0 /\ -i!14^0+i!22^0 == 0), cost: 1 New rule: l1 -> l1 : i!14^0'=1+i!22^0, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, (-9+i!14^0 <= 0 /\ -9+i!22^0 <= 0 /\ -i!14^0+i!22^0 == 0), cost: 1 Removed Trivial Updates Original rule: l1 -> l1 : i!14^0'=1+i!22^0, i!22^0'=i!22^0, result!12^0'=result!12^0, temp0!15^0'=temp0!15^0, (-9+i!14^0 <= 0 /\ -9+i!22^0 <= 0 /\ -i!14^0+i!22^0 == 0), cost: 1 New rule: l1 -> l1 : i!14^0'=1+i!22^0, (-9+i!14^0 <= 0 /\ -9+i!22^0 <= 0 /\ -i!14^0+i!22^0 == 0), cost: 1 Step with 8 Trace 8[T] Blocked [{}, {}] Step with 9 Trace 8[T], 9[(-9+i!14^0 <= 0 /\ -9+i!22^0 <= 0 /\ -i!14^0+i!22^0 == 0)] Blocked [{}, {7[T]}, {}] Acceleration Failed marked recursive suffix as redundant Backtrack Trace 8[T] Blocked [{}, {7[T], 9[T]}] Backtrack Trace Blocked [{8[T]}] Accept unknown Build SHA: a05f16bf13df659c382799650051f91bf6828c7b