unknown Initial ITS Start location: __init Program variables: arg1 arg2 0: f1_0_main_ConstantStackPush -> f139_0_main_GE : arg1'=arg1p1, arg2'=arg2p1, -arg1p1 == 0, cost: 1 1: f139_0_main_GE -> f169_0_main_GE : arg1'=arg1p2, arg2'=arg2p2, (3-arg2p2 == 0 /\ -arg1p2+arg1 == 0 /\ -10+arg1 < 0), cost: 1 2: f169_0_main_GE -> f139_0_main_GE : arg1'=arg1p3, arg2'=arg2p3, (1-arg1p3+arg1 == 0 /\ -11+arg2 > 0), cost: 1 3: f169_0_main_GE -> f169_0_main_GE : arg1'=arg1p4, arg2'=arg2p4, (-12+arg2 < 0 /\ 1-arg2p4+arg2 == 0 /\ -arg1p4+arg1 == 0), cost: 1 4: __init -> f1_0_main_ConstantStackPush : arg1'=arg1p5, arg2'=arg2p5, T, cost: 1 Chained Linear Paths Start location: __init Program variables: arg1 arg2 1: f139_0_main_GE -> f169_0_main_GE : arg1'=arg1p2, arg2'=arg2p2, (3-arg2p2 == 0 /\ -arg1p2+arg1 == 0 /\ -10+arg1 < 0), cost: 1 2: f169_0_main_GE -> f139_0_main_GE : arg1'=arg1p3, arg2'=arg2p3, (1-arg1p3+arg1 == 0 /\ -11+arg2 > 0), cost: 1 3: f169_0_main_GE -> f169_0_main_GE : arg1'=arg1p4, arg2'=arg2p4, (-12+arg2 < 0 /\ 1-arg2p4+arg2 == 0 /\ -arg1p4+arg1 == 0), cost: 1 5: __init -> f139_0_main_GE : arg1'=arg1p1, arg2'=arg2p1, -arg1p1 == 0, cost: 1 Eliminating location f1_0_main_ConstantStackPush by chaining: Applied chaining First rule: __init -> f1_0_main_ConstantStackPush : arg1'=arg1p5, arg2'=arg2p5, T, cost: 1 Second rule: f1_0_main_ConstantStackPush -> f139_0_main_GE : arg1'=arg1p1, arg2'=arg2p1, -arg1p1 == 0, cost: 1 New rule: __init -> f139_0_main_GE : arg1'=arg1p1, arg2'=arg2p1, -arg1p1 == 0, cost: 1 Applied deletion Removed the following rules: 0 4 Simplified Transitions Start location: __init Program variables: arg1 arg2 6: f139_0_main_GE -> f169_0_main_GE : arg2'=3, -10+arg1 < 0, cost: 1 7: f169_0_main_GE -> f139_0_main_GE : arg1'=1+arg1, arg2'=arg2p3, -11+arg2 > 0, cost: 1 8: f169_0_main_GE -> f169_0_main_GE : arg2'=1+arg2, -12+arg2 < 0, cost: 1 9: __init -> f139_0_main_GE : arg1'=0, arg2'=arg2p1, T, cost: 1 Propagated Equalities Original rule: f139_0_main_GE -> f169_0_main_GE : arg1'=arg1p2, arg2'=arg2p2, (3-arg2p2 == 0 /\ -arg1p2+arg1 == 0 /\ -10+arg1 < 0), cost: 1 New rule: f139_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=3, (0 == 0 /\ -10+arg1 < 0), cost: 1 propagated equality arg2p2 = 3 propagated equality arg1p2 = arg1 Simplified Guard Original rule: f139_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=3, (0 == 0 /\ -10+arg1 < 0), cost: 1 New rule: f139_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=3, -10+arg1 < 0, cost: 1 Removed Trivial Updates Original rule: f139_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=3, -10+arg1 < 0, cost: 1 New rule: f139_0_main_GE -> f169_0_main_GE : arg2'=3, -10+arg1 < 0, cost: 1 Propagated Equalities Original rule: f169_0_main_GE -> f139_0_main_GE : arg1'=arg1p3, arg2'=arg2p3, (1-arg1p3+arg1 == 0 /\ -11+arg2 > 0), cost: 1 New rule: f169_0_main_GE -> f139_0_main_GE : arg1'=1+arg1, arg2'=arg2p3, (0 == 0 /\ -11+arg2 > 0), cost: 1 propagated equality arg1p3 = 1+arg1 Simplified Guard Original rule: f169_0_main_GE -> f139_0_main_GE : arg1'=1+arg1, arg2'=arg2p3, (0 == 0 /\ -11+arg2 > 0), cost: 1 New rule: f169_0_main_GE -> f139_0_main_GE : arg1'=1+arg1, arg2'=arg2p3, -11+arg2 > 0, cost: 1 Propagated Equalities Original rule: f169_0_main_GE -> f169_0_main_GE : arg1'=arg1p4, arg2'=arg2p4, (-12+arg2 < 0 /\ 1-arg2p4+arg2 == 0 /\ -arg1p4+arg1 == 0), cost: 1 New rule: f169_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=1+arg2, (0 == 0 /\ -12+arg2 < 0), cost: 1 propagated equality arg2p4 = 1+arg2 propagated equality arg1p4 = arg1 Simplified Guard Original rule: f169_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=1+arg2, (0 == 0 /\ -12+arg2 < 0), cost: 1 New rule: f169_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=1+arg2, -12+arg2 < 0, cost: 1 Removed Trivial Updates Original rule: f169_0_main_GE -> f169_0_main_GE : arg1'=arg1, arg2'=1+arg2, -12+arg2 < 0, cost: 1 New rule: f169_0_main_GE -> f169_0_main_GE : arg2'=1+arg2, -12+arg2 < 0, cost: 1 Propagated Equalities Original rule: __init -> f139_0_main_GE : arg1'=arg1p1, arg2'=arg2p1, -arg1p1 == 0, cost: 1 New rule: __init -> f139_0_main_GE : arg1'=0, arg2'=arg2p1, 0 == 0, cost: 1 propagated equality arg1p1 = 0 Simplified Guard Original rule: __init -> f139_0_main_GE : arg1'=0, arg2'=arg2p1, 0 == 0, cost: 1 New rule: __init -> f139_0_main_GE : arg1'=0, arg2'=arg2p1, T, cost: 1 Step with 9 Trace 9[T] Blocked [{}, {}] Step with 6 Trace 9[T], 6[(-10+arg1 < 0)] Blocked [{}, {}, {}] Step with 8 Trace 9[T], 6[(-10+arg1 < 0)], 8[(-12+arg2 < 0)] Blocked [{}, {}, {7[T]}, {}] Accelerate Start location: __init Program variables: arg1 arg2 6: f139_0_main_GE -> f169_0_main_GE : arg2'=3, -10+arg1 < 0, cost: 1 7: f169_0_main_GE -> f139_0_main_GE : arg1'=1+arg1, arg2'=arg2p3, -11+arg2 > 0, cost: 1 8: f169_0_main_GE -> f169_0_main_GE : arg2'=1+arg2, -12+arg2 < 0, cost: 1 10: f169_0_main_GE -> f169_0_main_GE : arg2'=arg2+n, (13-arg2-n > 0 /\ -1+n >= 0), cost: 1 9: __init -> f139_0_main_GE : arg1'=0, arg2'=arg2p1, T, cost: 1 Loop Acceleration Original rule: f169_0_main_GE -> f169_0_main_GE : arg2'=1+arg2, (-12+arg2 < 0), cost: 1 New rule: f169_0_main_GE -> f169_0_main_GE : arg2'=arg2+n, (13-arg2-n > 0 /\ -1+n >= 0), cost: 1 12-arg2 > 0 [0]: montonic decrease yields 13-arg2-n > 0 12-arg2 > 0 [1]: eventual increase yields (1 <= 0 /\ 12-arg2 > 0) Replacement map: {12-arg2 > 0 -> 13-arg2-n > 0} Trace 9[T], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)] Blocked [{}, {}, {7[T]}, {8[T], 10[T]}] Step with 7 Trace 9[T], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)], 7[(-11+arg2 > 0)] Blocked [{}, {}, {7[T]}, {8[T], 10[T]}, {}] Accelerate Start location: __init Program variables: arg1 arg2 6: f139_0_main_GE -> f169_0_main_GE : arg2'=3, -10+arg1 < 0, cost: 1 11: f139_0_main_GE -> f139_0_main_GE : arg1'=n2+arg1, arg2'=arg2p3, (-1+n2 >= 0 /\ 11-n2-arg1 > 0), cost: 1 7: f169_0_main_GE -> f139_0_main_GE : arg1'=1+arg1, arg2'=arg2p3, -11+arg2 > 0, cost: 1 8: f169_0_main_GE -> f169_0_main_GE : arg2'=1+arg2, -12+arg2 < 0, cost: 1 10: f169_0_main_GE -> f169_0_main_GE : arg2'=arg2+n, (13-arg2-n > 0 /\ -1+n >= 0), cost: 1 9: __init -> f139_0_main_GE : arg1'=0, arg2'=arg2p1, T, cost: 1 Loop Acceleration Original rule: f139_0_main_GE -> f139_0_main_GE : arg1'=1+arg1, arg2'=arg2p3, -10+arg1 < 0, cost: 1 New rule: f139_0_main_GE -> f139_0_main_GE : arg1'=n2+arg1, arg2'=arg2p3, (-1+n2 >= 0 /\ 11-n2-arg1 > 0), cost: 1 10-arg1 > 0 [0]: montonic decrease yields 11-n2-arg1 > 0 10-arg1 > 0 [1]: eventual increase yields (1 <= 0 /\ 10-arg1 > 0) Replacement map: {10-arg1 > 0 -> 11-n2-arg1 > 0} Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)] Blocked [{}, {}, {11[T]}] Step with 6 Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)] Blocked [{}, {}, {11[T]}, {}] Step with 8 Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)], 8[(-12+arg2 < 0)] Blocked [{}, {}, {11[T]}, {7[T]}, {}] Covered Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)] Blocked [{}, {}, {11[T]}, {7[T], 8[T]}] Step with 10 Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)] Blocked [{}, {}, {11[T]}, {7[T], 8[T]}, {10[T]}] Step with 7 Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)], 7[(-11+arg2 > 0)] Blocked [{}, {}, {11[T]}, {7[T], 8[T]}, {10[T]}, {}] Covered Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)] Blocked [{}, {}, {11[T]}, {7[T], 8[T]}, {7[T], 10[T]}] Step with 8 Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)], 8[(-12+arg2 < 0)] Blocked [{}, {}, {11[T]}, {7[T], 8[T]}, {7[T], 10[T]}, {}] Covered Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)] Blocked [{}, {}, {11[T]}, {7[T], 8[T]}, {7[T], 8[T], 10[T]}] Backtrack Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)], 6[(-10+arg1 < 0)] Blocked [{}, {}, {11[T]}, {7[T], 8[T], 10[T]}] Backtrack Trace 9[T], 11[(-1+n2 >= 0 /\ 11-n2-arg1 > 0)] Blocked [{}, {}, {6[T], 11[T]}] Backtrack Trace 9[T] Blocked [{}, {11[T]}] Step with 6 Trace 9[T], 6[(-10+arg1 < 0)] Blocked [{}, {11[T]}, {}] Step with 8 Trace 9[T], 6[(-10+arg1 < 0)], 8[(-12+arg2 < 0)] Blocked [{}, {11[T]}, {}, {}] Covered Trace 9[T], 6[(-10+arg1 < 0)] Blocked [{}, {11[T]}, {8[T]}] Step with 10 Trace 9[T], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)] Blocked [{}, {11[T]}, {8[T]}, {10[T]}] Step with 7 Trace 9[T], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)], 7[(-11+arg2 > 0)] Blocked [{}, {11[T]}, {8[T]}, {10[T]}, {}] Covered Trace 9[T], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)] Blocked [{}, {11[T]}, {8[T]}, {7[T], 10[T]}] Step with 8 Trace 9[T], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)], 8[(-12+arg2 < 0)] Blocked [{}, {11[T]}, {8[T]}, {7[T], 10[T]}, {}] Covered Trace 9[T], 6[(-10+arg1 < 0)], 10[(13-arg2-n > 0 /\ -1+n >= 0)] Blocked [{}, {11[T]}, {8[T]}, {7[T], 8[T], 10[T]}] Backtrack Trace 9[T], 6[(-10+arg1 < 0)] Blocked [{}, {11[T]}, {8[T], 10[T]}] Backtrack Trace 9[T] Blocked [{}, {6[T], 11[T]}] Backtrack Trace Blocked [{9[T]}] Accept unknown Build SHA: a05f16bf13df659c382799650051f91bf6828c7b