unknown Initial ITS Start location: __init Program variables: arg1 0: f1_0_main_ConstantStackPush -> f80_0_test_LT : arg1'=arg1p1, 9-arg1p1 == 0, cost: 1 1: f80_0_test_LT -> f80_0_test_LT : arg1'=arg1p2, (1+arg1 > 0 /\ -1-arg1p2+arg1 == 0), cost: 1 2: __init -> f1_0_main_ConstantStackPush : arg1'=arg1p3, T, cost: 1 Chained Linear Paths Start location: __init Program variables: arg1 1: f80_0_test_LT -> f80_0_test_LT : arg1'=arg1p2, (1+arg1 > 0 /\ -1-arg1p2+arg1 == 0), cost: 1 3: __init -> f80_0_test_LT : arg1'=arg1p1, 9-arg1p1 == 0, cost: 1 Eliminating location f1_0_main_ConstantStackPush by chaining: Applied chaining First rule: __init -> f1_0_main_ConstantStackPush : arg1'=arg1p3, T, cost: 1 Second rule: f1_0_main_ConstantStackPush -> f80_0_test_LT : arg1'=arg1p1, 9-arg1p1 == 0, cost: 1 New rule: __init -> f80_0_test_LT : arg1'=arg1p1, 9-arg1p1 == 0, cost: 1 Applied deletion Removed the following rules: 0 2 Simplified Transitions Start location: __init Program variables: arg1 4: f80_0_test_LT -> f80_0_test_LT : arg1'=-1+arg1, 1+arg1 > 0, cost: 1 5: __init -> f80_0_test_LT : arg1'=9, T, cost: 1 Propagated Equalities Original rule: f80_0_test_LT -> f80_0_test_LT : arg1'=arg1p2, (1+arg1 > 0 /\ -1-arg1p2+arg1 == 0), cost: 1 New rule: f80_0_test_LT -> f80_0_test_LT : arg1'=-1+arg1, (0 == 0 /\ 1+arg1 > 0), cost: 1 propagated equality arg1p2 = -1+arg1 Simplified Guard Original rule: f80_0_test_LT -> f80_0_test_LT : arg1'=-1+arg1, (0 == 0 /\ 1+arg1 > 0), cost: 1 New rule: f80_0_test_LT -> f80_0_test_LT : arg1'=-1+arg1, 1+arg1 > 0, cost: 1 Propagated Equalities Original rule: __init -> f80_0_test_LT : arg1'=arg1p1, 9-arg1p1 == 0, cost: 1 New rule: __init -> f80_0_test_LT : arg1'=9, 0 == 0, cost: 1 propagated equality arg1p1 = 9 Simplified Guard Original rule: __init -> f80_0_test_LT : arg1'=9, 0 == 0, cost: 1 New rule: __init -> f80_0_test_LT : arg1'=9, T, cost: 1 Step with 5 Trace 5[T] Blocked [{}, {}] Step with 4 Trace 5[T], 4[(1+arg1 > 0)] Blocked [{}, {}, {}] Accelerate Start location: __init Program variables: arg1 4: f80_0_test_LT -> f80_0_test_LT : arg1'=-1+arg1, 1+arg1 > 0, cost: 1 6: f80_0_test_LT -> f80_0_test_LT : arg1'=-n+arg1, (-1+n >= 0 /\ 2-n+arg1 > 0), cost: 1 5: __init -> f80_0_test_LT : arg1'=9, T, cost: 1 Loop Acceleration Original rule: f80_0_test_LT -> f80_0_test_LT : arg1'=-1+arg1, (1+arg1 > 0), cost: 1 New rule: f80_0_test_LT -> f80_0_test_LT : arg1'=-n+arg1, (-1+n >= 0 /\ 2-n+arg1 > 0), cost: 1 1+arg1 > 0 [0]: montonic decrease yields 2-n+arg1 > 0 1+arg1 > 0 [1]: eventual increase yields (1 <= 0 /\ 1+arg1 > 0) Replacement map: {1+arg1 > 0 -> 2-n+arg1 > 0} Trace 5[T], 6[(-1+n >= 0 /\ 2-n+arg1 > 0)] Blocked [{}, {}, {4[T], 6[T]}] Backtrack Trace 5[T] Blocked [{}, {6[T]}] Step with 4 Trace 5[T], 4[(1+arg1 > 0)] Blocked [{}, {6[T]}, {}] Covered Trace 5[T] Blocked [{}, {4[T], 6[T]}] Backtrack Trace Blocked [{5[T]}] Accept unknown Build SHA: a05f16bf13df659c382799650051f91bf6828c7b