NO Initial ITS Start location: __init Program variables: arg1 arg2 0: f289_0_createIntList_Return -> f491_0_random_ArrayAccess : arg1'=arg1p1, arg2'=arg2p1, (1+arg1 > 0 /\ arg1p1-arg1 <= 0 /\ 1+arg1p1 > 0), cost: 1 2: f491_0_random_ArrayAccess -> f815_0_main_NULL : arg1'=arg1p3, arg2'=arg2p3, (1+arg1 > 0 /\ 1+arg1p3 > 0 /\ x7 > 0 /\ arg1p3-arg1 <= 0), cost: 1 1: f1_0_main_Load -> f491_0_random_ArrayAccess : arg1'=arg1p2, arg2'=arg2p2, (1+arg1p2 > 0 /\ arg1 > 0), cost: 1 6: f1_0_main_Load -> f639_0_createIntList_LE : arg1'=arg1p7, arg2'=arg2p7, (1-arg2p7 == 0 /\ 1+arg1p7 > 0 /\ arg1 > 0 /\ 1+arg2 > 0), cost: 1 3: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p4, arg2'=arg2p4, (1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+x12 < 0 /\ -1+arg1 > 0), cost: 1 4: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p5, arg2'=arg2p5, (x15 > 0 /\ arg1p5-arg1 <= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: 1 5: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p6, arg2'=arg2p6, (-2+arg1 > 0 /\ 2+arg1p6-arg1 <= 0 /\ arg1p6 > 0 /\ -1+x18 < 0), cost: 1 7: f639_0_createIntList_LE -> f639_0_createIntList_LE : arg1'=arg1p8, arg2'=arg2p8, (-1-arg1p8+arg1 == 0 /\ arg2 > 0 /\ 1-arg2p8+arg2 == 0 /\ arg1 > 0), cost: 1 8: __init -> f1_0_main_Load : arg1'=arg1p9, arg2'=arg2p9, T, cost: 1 Simplified Transitions Start location: __init Program variables: arg1 arg2 0: f289_0_createIntList_Return -> f491_0_random_ArrayAccess : arg1'=arg1p1, arg2'=arg2p1, (1+arg1 > 0 /\ arg1p1-arg1 <= 0 /\ 1+arg1p1 > 0), cost: 1 9: f491_0_random_ArrayAccess -> f815_0_main_NULL : arg1'=arg1p3, arg2'=arg2p3, (1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0), cost: 1 1: f1_0_main_Load -> f491_0_random_ArrayAccess : arg1'=arg1p2, arg2'=arg2p2, (1+arg1p2 > 0 /\ arg1 > 0), cost: 1 13: f1_0_main_Load -> f639_0_createIntList_LE : arg1'=arg1p7, arg2'=1, (1+arg1p7 > 0 /\ arg1 > 0 /\ 1+arg2 > 0), cost: 1 10: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p4, arg2'=arg2p4, (1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0), cost: 1 11: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p5, arg2'=arg2p5, (arg1p5-arg1 <= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: 1 12: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p6, arg2'=arg2p6, (-2+arg1 > 0 /\ 2+arg1p6-arg1 <= 0 /\ arg1p6 > 0), cost: 1 14: f639_0_createIntList_LE -> f639_0_createIntList_LE : arg1'=-1+arg1, arg2'=1+arg2, (arg2 > 0 /\ arg1 > 0), cost: 1 8: __init -> f1_0_main_Load : arg1'=arg1p9, arg2'=arg2p9, T, cost: 1 Eliminated Temporary Variables via Transitive Closure Original rule: f491_0_random_ArrayAccess -> f815_0_main_NULL : arg1'=arg1p3, arg2'=arg2p3, (1+arg1 > 0 /\ 1+arg1p3 > 0 /\ x7 > 0 /\ arg1p3-arg1 <= 0), cost: 1 New rule: f491_0_random_ArrayAccess -> f815_0_main_NULL : arg1'=arg1p3, arg2'=arg2p3, (1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0), cost: 1 Eliminated Temporary Variables via Transitive Closure Original rule: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p4, arg2'=arg2p4, (1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+x12 < 0 /\ -1+arg1 > 0), cost: 1 New rule: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p4, arg2'=arg2p4, (1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0), cost: 1 Eliminated Temporary Variables via Transitive Closure Original rule: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p5, arg2'=arg2p5, (x15 > 0 /\ arg1p5-arg1 <= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: 1 New rule: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p5, arg2'=arg2p5, (arg1p5-arg1 <= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: 1 Eliminated Temporary Variables via Transitive Closure Original rule: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p6, arg2'=arg2p6, (-2+arg1 > 0 /\ 2+arg1p6-arg1 <= 0 /\ arg1p6 > 0 /\ -1+x18 < 0), cost: 1 New rule: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p6, arg2'=arg2p6, (-2+arg1 > 0 /\ 2+arg1p6-arg1 <= 0 /\ arg1p6 > 0), cost: 1 Propagated Equalities Original rule: f1_0_main_Load -> f639_0_createIntList_LE : arg1'=arg1p7, arg2'=arg2p7, (1-arg2p7 == 0 /\ 1+arg1p7 > 0 /\ arg1 > 0 /\ 1+arg2 > 0), cost: 1 New rule: f1_0_main_Load -> f639_0_createIntList_LE : arg1'=arg1p7, arg2'=1, (0 == 0 /\ 1+arg1p7 > 0 /\ arg1 > 0 /\ 1+arg2 > 0), cost: 1 propagated equality arg2p7 = 1 Simplified Guard Original rule: f1_0_main_Load -> f639_0_createIntList_LE : arg1'=arg1p7, arg2'=1, (0 == 0 /\ 1+arg1p7 > 0 /\ arg1 > 0 /\ 1+arg2 > 0), cost: 1 New rule: f1_0_main_Load -> f639_0_createIntList_LE : arg1'=arg1p7, arg2'=1, (1+arg1p7 > 0 /\ arg1 > 0 /\ 1+arg2 > 0), cost: 1 Propagated Equalities Original rule: f639_0_createIntList_LE -> f639_0_createIntList_LE : arg1'=arg1p8, arg2'=arg2p8, (-1-arg1p8+arg1 == 0 /\ arg2 > 0 /\ 1-arg2p8+arg2 == 0 /\ arg1 > 0), cost: 1 New rule: f639_0_createIntList_LE -> f639_0_createIntList_LE : arg1'=-1+arg1, arg2'=1+arg2, (0 == 0 /\ arg2 > 0 /\ arg1 > 0), cost: 1 propagated equality arg1p8 = -1+arg1 propagated equality arg2p8 = 1+arg2 Simplified Guard Original rule: f639_0_createIntList_LE -> f639_0_createIntList_LE : arg1'=-1+arg1, arg2'=1+arg2, (0 == 0 /\ arg2 > 0 /\ arg1 > 0), cost: 1 New rule: f639_0_createIntList_LE -> f639_0_createIntList_LE : arg1'=-1+arg1, arg2'=1+arg2, (arg2 > 0 /\ arg1 > 0), cost: 1 Step with 8 Trace 8[T] Blocked [{}, {}] Step with 1 Trace 8[T], 1[(1+arg1p2 > 0 /\ arg1 > 0)] Blocked [{}, {}, {}] Step with 9 Trace 8[T], 1[(1+arg1p2 > 0 /\ arg1 > 0)], 9[(1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0)] Blocked [{}, {}, {}, {}] Step with 10 Trace 8[T], 1[(1+arg1p2 > 0 /\ arg1 > 0)], 9[(1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0)], 10[(1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0)] Blocked [{}, {}, {}, {}, {}] Acceleration Failed marked recursive suffix as redundant Step with 10 Trace 8[T], 1[(1+arg1p2 > 0 /\ arg1 > 0)], 9[(1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0)], 10[(1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0)], 10[(1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0)] Blocked [{}, {}, {}, {}, {}, {}] Covered Trace 8[T], 1[(1+arg1p2 > 0 /\ arg1 > 0)], 9[(1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0)], 10[(1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0)] Blocked [{}, {}, {}, {}, {10[T]}] Step with 11 Trace 8[T], 1[(1+arg1p2 > 0 /\ arg1 > 0)], 9[(1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0)], 10[(1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0)], 11[(arg1p5-arg1 <= 0 /\ arg1p5 > 0 /\ arg1 > 0)] Blocked [{}, {}, {}, {}, {10[T]}, {}] Nonterm Start location: __init Program variables: arg1 arg2 0: f289_0_createIntList_Return -> f491_0_random_ArrayAccess : arg1'=arg1p1, arg2'=arg2p1, (1+arg1 > 0 /\ arg1p1-arg1 <= 0 /\ 1+arg1p1 > 0), cost: 1 9: f491_0_random_ArrayAccess -> f815_0_main_NULL : arg1'=arg1p3, arg2'=arg2p3, (1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0), cost: 1 1: f1_0_main_Load -> f491_0_random_ArrayAccess : arg1'=arg1p2, arg2'=arg2p2, (1+arg1p2 > 0 /\ arg1 > 0), cost: 1 13: f1_0_main_Load -> f639_0_createIntList_LE : arg1'=arg1p7, arg2'=1, (1+arg1p7 > 0 /\ arg1 > 0 /\ 1+arg2 > 0), cost: 1 10: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p4, arg2'=arg2p4, (1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0), cost: 1 11: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p5, arg2'=arg2p5, (arg1p5-arg1 <= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: 1 12: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p6, arg2'=arg2p6, (-2+arg1 > 0 /\ 2+arg1p6-arg1 <= 0 /\ arg1p6 > 0), cost: 1 15: f815_0_main_NULL -> LoAT_sink : (-arg1p5+arg1 <= 0 /\ -arg1p5+arg1 >= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: NONTERM 14: f639_0_createIntList_LE -> f639_0_createIntList_LE : arg1'=-1+arg1, arg2'=1+arg2, (arg2 > 0 /\ arg1 > 0), cost: 1 8: __init -> f1_0_main_Load : arg1'=arg1p9, arg2'=arg2p9, T, cost: 1 Certificate of Non-Termination Original rule: f815_0_main_NULL -> f815_0_main_NULL : arg1'=arg1p5, arg2'=arg2p5, (arg1p5-arg1 <= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: 1 New rule: f815_0_main_NULL -> LoAT_sink : (-arg1p5+arg1 <= 0 /\ -arg1p5+arg1 >= 0 /\ arg1p5 > 0 /\ arg1 > 0), cost: NONTERM -arg1p5+arg1 >= 0 [0]: monotonic increase yields -arg1p5+arg1 >= 0 arg1p5 > 0 [0]: monotonic increase yields arg1p5 > 0 arg1 > 0 [0]: montonic decrease yields arg1p5 > 0, dependencies: -arg1p5+arg1 >= 0 arg1 > 0 [1]: eventual increase yields (-arg1p5+arg1 <= 0 /\ arg1 > 0) Replacement map: {-arg1p5+arg1 >= 0 -> -arg1p5+arg1 >= 0, arg1p5 > 0 -> arg1p5 > 0, arg1 > 0 -> (-arg1p5+arg1 <= 0 /\ arg1 > 0)} Step with 15 Trace 8[T], 1[(1+arg1p2 > 0 /\ arg1 > 0)], 9[(1+arg1 > 0 /\ 1+arg1p3 > 0 /\ arg1p3-arg1 <= 0)], 10[(1+arg1p4 > 0 /\ 2+arg1p4-arg1 <= 0 /\ -1+arg1 > 0)], 15[(-arg1p5+arg1 <= 0 /\ -arg1p5+arg1 >= 0 /\ arg1p5 > 0 /\ arg1 > 0)] Blocked [{}, {}, {}, {}, {10[T]}, {15[T]}] Refute Counterexample [ arg1=1 arg2=0 ] 8 [ arg1=4 arg2=0 ] 1 [ arg1=4 arg2=0 ] 9 [ arg1=2 arg2=0 ] 10 [ arg1=arg1 arg2=arg2 ] 15 NO Build SHA: a05f16bf13df659c382799650051f91bf6828c7b