unknown Initial ITS Start location: __init Program variables: arg1 arg2 0: f1_0_main_ConstantStackPush -> f137_0_test_GE : arg1'=arg1p1, arg2'=arg2p1, (-arg1p1 == 0 /\ 10-arg2p1 == 0), cost: 1 1: f137_0_test_GE -> f137_0_test_GE : arg1'=arg1p2, arg2'=arg2p2, (-arg2p2+arg1 == 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1p2 == 0), cost: 1 2: f137_0_test_GE -> f137_0_test_GE : arg1'=arg1p3, arg2'=arg2p3, (arg1-arg2 < 0 /\ arg2-arg2p3 == 0 /\ arg2 > 0 /\ 1+arg1-arg1p3 == 0), cost: 1 3: __init -> f1_0_main_ConstantStackPush : arg1'=arg1p4, arg2'=arg2p4, T, cost: 1 Chained Linear Paths Start location: __init Program variables: arg1 arg2 1: f137_0_test_GE -> f137_0_test_GE : arg1'=arg1p2, arg2'=arg2p2, (-arg2p2+arg1 == 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1p2 == 0), cost: 1 2: f137_0_test_GE -> f137_0_test_GE : arg1'=arg1p3, arg2'=arg2p3, (arg1-arg2 < 0 /\ arg2-arg2p3 == 0 /\ arg2 > 0 /\ 1+arg1-arg1p3 == 0), cost: 1 4: __init -> f137_0_test_GE : arg1'=arg1p1, arg2'=arg2p1, (-arg1p1 == 0 /\ 10-arg2p1 == 0), cost: 1 Eliminating location f1_0_main_ConstantStackPush by chaining: Applied chaining First rule: __init -> f1_0_main_ConstantStackPush : arg1'=arg1p4, arg2'=arg2p4, T, cost: 1 Second rule: f1_0_main_ConstantStackPush -> f137_0_test_GE : arg1'=arg1p1, arg2'=arg2p1, (-arg1p1 == 0 /\ 10-arg2p1 == 0), cost: 1 New rule: __init -> f137_0_test_GE : arg1'=arg1p1, arg2'=arg2p1, (-arg1p1 == 0 /\ 10-arg2p1 == 0), cost: 1 Applied deletion Removed the following rules: 0 3 Simplified Transitions Start location: __init Program variables: arg1 arg2 5: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 6: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 7: __init -> f137_0_test_GE : arg1'=0, arg2'=10, T, cost: 1 Propagated Equalities Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=arg1p2, arg2'=arg2p2, (-arg2p2+arg1 == 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1p2 == 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (0 == 0 /\ arg1-arg2 < 0 /\ arg2 > 0), cost: 1 propagated equality arg2p2 = arg1 propagated equality arg1p2 = 0 Simplified Guard Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (0 == 0 /\ arg1-arg2 < 0 /\ arg2 > 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 Propagated Equalities Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=arg1p3, arg2'=arg2p3, (arg1-arg2 < 0 /\ arg2-arg2p3 == 0 /\ arg2 > 0 /\ 1+arg1-arg1p3 == 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, arg2'=arg2, (0 == 0 /\ arg1-arg2 < 0 /\ arg2 > 0), cost: 1 propagated equality arg2p3 = arg2 propagated equality arg1p3 = 1+arg1 Simplified Guard Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, arg2'=arg2, (0 == 0 /\ arg1-arg2 < 0 /\ arg2 > 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, arg2'=arg2, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 Removed Trivial Updates Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, arg2'=arg2, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 Propagated Equalities Original rule: __init -> f137_0_test_GE : arg1'=arg1p1, arg2'=arg2p1, (-arg1p1 == 0 /\ 10-arg2p1 == 0), cost: 1 New rule: __init -> f137_0_test_GE : arg1'=0, arg2'=10, 0 == 0, cost: 1 propagated equality arg1p1 = 0 propagated equality arg2p1 = 10 Simplified Guard Original rule: __init -> f137_0_test_GE : arg1'=0, arg2'=10, 0 == 0, cost: 1 New rule: __init -> f137_0_test_GE : arg1'=0, arg2'=10, T, cost: 1 Unrolled Loops Start location: __init Program variables: arg1 arg2 5: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 6: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 8: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=0, (arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0), cost: 1 7: __init -> f137_0_test_GE : arg1'=0, arg2'=10, T, cost: 1 Unrolling Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=0, (arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0), cost: 1 Step with 7 Trace 7[T] Blocked [{}, {}] Step with 5 Trace 7[T], 5[(arg1-arg2 < 0 /\ arg2 > 0)] Blocked [{}, {}, {}] Accelerate and Drop Start location: __init Program variables: arg1 arg2 5: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 6: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 8: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=0, (arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0), cost: 1 9: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=0, (arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0), cost: 1 7: __init -> f137_0_test_GE : arg1'=0, arg2'=10, T, cost: 1 unrolling Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=0, (arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0), cost: 1 rule cannot be iterated more than once Trace 7[T] Blocked [{}, {5[T]}] Step with 6 Trace 7[T], 6[(arg1-arg2 < 0 /\ arg2 > 0)] Blocked [{}, {5[T]}, {}] Accelerate Start location: __init Program variables: arg1 arg2 5: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 6: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 8: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=0, (arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0), cost: 1 9: f137_0_test_GE -> f137_0_test_GE : arg1'=0, arg2'=0, (arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0), cost: 1 10: f137_0_test_GE -> f137_0_test_GE : arg1'=n+arg1, (-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0), cost: 1 7: __init -> f137_0_test_GE : arg1'=0, arg2'=10, T, cost: 1 Loop Acceleration Original rule: f137_0_test_GE -> f137_0_test_GE : arg1'=1+arg1, (arg1-arg2 < 0 /\ arg2 > 0), cost: 1 New rule: f137_0_test_GE -> f137_0_test_GE : arg1'=n+arg1, (-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0), cost: 1 -arg1+arg2 > 0 [0]: montonic decrease yields 1-n-arg1+arg2 > 0 -arg1+arg2 > 0 [1]: eventual increase yields (1 <= 0 /\ -arg1+arg2 > 0) arg2 > 0 [0]: monotonic increase yields arg2 > 0 Replacement map: {-arg1+arg2 > 0 -> 1-n-arg1+arg2 > 0, arg2 > 0 -> arg2 > 0} Trace 7[T], 10[(-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0)] Blocked [{}, {5[T]}, {6[T], 10[T]}] Step with 5 Trace 7[T], 10[(-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0)], 5[(arg1-arg2 < 0 /\ arg2 > 0)] Blocked [{}, {5[T]}, {6[T], 10[T]}, {}] Covered Trace 7[T], 10[(-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0)] Blocked [{}, {5[T]}, {5[T], 6[T], 10[T]}] Step with 8 Trace 7[T], 10[(-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0)], 8[(arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0)] Blocked [{}, {5[T]}, {5[T], 6[T], 10[T]}, {}] Acceleration Failed marked recursive suffix as redundant Acceleration Failed marked recursive suffix as redundant Backtrack Trace 7[T], 10[(-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0)] Blocked [{}, {5[T]}, {5[T], 6[T], 8[T], 10[T]}] Step with 9 Trace 7[T], 10[(-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0)], 9[(arg1 > 0 /\ arg1-arg2 < 0 /\ arg2 > 0 /\ -arg1 < 0)] Blocked [{}, {5[T]}, {5[T], 6[T], 8[T], 10[T]}, {9[T]}] Acceleration Failed marked recursive suffix as redundant Backtrack Trace 7[T], 10[(-1+n >= 0 /\ arg2 > 0 /\ 1-n-arg1+arg2 > 0)] Blocked [{}, {5[T]}, {5[T], 6[T], 8[T], 9[T], 10[T]}] Backtrack Trace 7[T] Blocked [{}, {5[T], 10[T]}] Step with 6 Trace 7[T], 6[(arg1-arg2 < 0 /\ arg2 > 0)] Blocked [{}, {5[T], 9[T], 10[T]}, {}] Covered Trace 7[T] Blocked [{}, {5[T], 6[T], 9[T], 10[T]}] Backtrack Trace Blocked [{7[T]}] Accept unknown Build SHA: a05f16bf13df659c382799650051f91bf6828c7b