unknown Initial ITS Start location: __init Program variables: arg1 arg2 arg3 0: f1_0_main_Load -> f259_0_div_LT : arg1'=arg1p1, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2 > 0 /\ 1+arg2p1 > 0 /\ arg1 > 0 /\ -arg1p1 == 0), cost: 1 1: f259_0_div_LT -> f259_0_div_LT : arg1'=arg1p2, arg2'=arg2p2, arg3'=arg3p2, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ -arg2p2-arg3+arg2 == 0 /\ arg3-arg3p2 == 0 /\ 1+arg1-arg1p2 == 0 /\ 1+arg1 > 0), cost: 1 2: __init -> f1_0_main_Load : arg1'=arg1p3, arg2'=arg2p3, arg3'=arg3p3, T, cost: 1 Chained Linear Paths Start location: __init Program variables: arg1 arg2 arg3 1: f259_0_div_LT -> f259_0_div_LT : arg1'=arg1p2, arg2'=arg2p2, arg3'=arg3p2, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ -arg2p2-arg3+arg2 == 0 /\ arg3-arg3p2 == 0 /\ 1+arg1-arg1p2 == 0 /\ 1+arg1 > 0), cost: 1 3: __init -> f259_0_div_LT : arg1'=arg1p1, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0 /\ -arg1p1 == 0 /\ arg1p3 > 0 /\ 1+arg2p3 > 0), cost: 1 Eliminating location f1_0_main_Load by chaining: Applied chaining First rule: __init -> f1_0_main_Load : arg1'=arg1p3, arg2'=arg2p3, arg3'=arg3p3, T, cost: 1 Second rule: f1_0_main_Load -> f259_0_div_LT : arg1'=arg1p1, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2 > 0 /\ 1+arg2p1 > 0 /\ arg1 > 0 /\ -arg1p1 == 0), cost: 1 New rule: __init -> f259_0_div_LT : arg1'=arg1p1, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0 /\ -arg1p1 == 0 /\ arg1p3 > 0 /\ 1+arg2p3 > 0), cost: 1 Applied deletion Removed the following rules: 0 2 Simplified Transitions Start location: __init Program variables: arg1 arg2 arg3 4: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 5: __init -> f259_0_div_LT : arg1'=0, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0), cost: 1 Propagated Equalities Original rule: f259_0_div_LT -> f259_0_div_LT : arg1'=arg1p2, arg2'=arg2p2, arg3'=arg3p2, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ -arg2p2-arg3+arg2 == 0 /\ arg3-arg3p2 == 0 /\ 1+arg1-arg1p2 == 0 /\ 1+arg1 > 0), cost: 1 New rule: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, arg3'=arg3, (0 == 0 /\ arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 propagated equality arg2p2 = -arg3+arg2 propagated equality arg3p2 = arg3 propagated equality arg1p2 = 1+arg1 Simplified Guard Original rule: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, arg3'=arg3, (0 == 0 /\ arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 New rule: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, arg3'=arg3, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 Removed Trivial Updates Original rule: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, arg3'=arg3, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 New rule: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 Propagated Equalities Original rule: __init -> f259_0_div_LT : arg1'=arg1p1, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0 /\ -arg1p1 == 0 /\ arg1p3 > 0 /\ 1+arg2p3 > 0), cost: 1 New rule: __init -> f259_0_div_LT : arg1'=0, arg2'=arg2p1, arg3'=arg3p1, (0 == 0 /\ 1+arg3p1 > 0 /\ 1+arg2p1 > 0 /\ arg1p3 > 0 /\ 1+arg2p3 > 0), cost: 1 propagated equality arg1p1 = 0 Simplified Guard Original rule: __init -> f259_0_div_LT : arg1'=0, arg2'=arg2p1, arg3'=arg3p1, (0 == 0 /\ 1+arg3p1 > 0 /\ 1+arg2p1 > 0 /\ arg1p3 > 0 /\ 1+arg2p3 > 0), cost: 1 New rule: __init -> f259_0_div_LT : arg1'=0, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0 /\ arg1p3 > 0 /\ 1+arg2p3 > 0), cost: 1 Eliminated Temporary Variables via Transitive Closure Original rule: __init -> f259_0_div_LT : arg1'=0, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0 /\ arg1p3 > 0 /\ 1+arg2p3 > 0), cost: 1 New rule: __init -> f259_0_div_LT : arg1'=0, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0), cost: 1 Step with 5 Trace 5[(1+arg3p1 > 0 /\ 1+arg2p1 > 0)] Blocked [{}, {}] Step with 4 Trace 5[(1+arg3p1 > 0 /\ 1+arg2p1 > 0)], 4[(arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0)] Blocked [{}, {}, {}] Accelerate Start location: __init Program variables: arg1 arg2 arg3 4: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 6: f259_0_div_LT -> f259_0_div_LT : arg1'=n+arg1, arg2'=-n*arg3+arg2, (-arg3+arg2 >= 0 /\ -1+n >= 0 /\ -arg3-(-1+n)*arg3+arg2 >= 0 /\ arg3 > 0 /\ 1+arg2 > 0 /\ 1+arg1 > 0), cost: 1 5: __init -> f259_0_div_LT : arg1'=0, arg2'=arg2p1, arg3'=arg3p1, (1+arg3p1 > 0 /\ 1+arg2p1 > 0), cost: 1 Loop Acceleration Original rule: f259_0_div_LT -> f259_0_div_LT : arg1'=1+arg1, arg2'=-arg3+arg2, (arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0), cost: 1 New rule: f259_0_div_LT -> f259_0_div_LT : arg1'=n+arg1, arg2'=-n*arg3+arg2, (-arg3+arg2 >= 0 /\ -1+n >= 0 /\ -arg3-(-1+n)*arg3+arg2 >= 0 /\ arg3 > 0 /\ 1+arg2 > 0 /\ 1+arg1 > 0), cost: 1 -arg3+arg2 >= 0 [0]: montonic decrease yields -arg3-(-1+n)*arg3+arg2 >= 0, dependencies: 1+arg2 > 0 -arg3+arg2 >= 0 [1]: eventual decrease yields (-arg3+arg2 >= 0 /\ -arg3-(-1+n)*arg3+arg2 >= 0), dependencies: arg3 > 0 -arg3+arg2 >= 0 [2]: eventual increase yields (-arg3+arg2 >= 0 /\ arg3 <= 0), dependencies: arg3 > 0 arg3 > 0 [0]: monotonic increase yields arg3 > 0 1+arg2 > 0 [0]: monotonic increase yields 1+arg2 > 0, dependencies: -arg3+arg2 >= 0 1+arg1 > 0 [0]: monotonic increase yields 1+arg1 > 0 Replacement map: {-arg3+arg2 >= 0 -> (-arg3+arg2 >= 0 /\ -arg3-(-1+n)*arg3+arg2 >= 0), arg3 > 0 -> arg3 > 0, 1+arg2 > 0 -> 1+arg2 > 0, 1+arg1 > 0 -> 1+arg1 > 0} Trace 5[(1+arg3p1 > 0 /\ 1+arg2p1 > 0)], 6[(-arg3+arg2 >= 0 /\ -1+n >= 0 /\ -arg3-(-1+n)*arg3+arg2 >= 0 /\ arg3 > 0 /\ 1+arg2 > 0 /\ 1+arg1 > 0)] Blocked [{}, {}, {4[T], 6[T]}] Backtrack Trace 5[(1+arg3p1 > 0 /\ 1+arg2p1 > 0)] Blocked [{}, {6[T]}] Step with 4 Trace 5[(1+arg3p1 > 0 /\ 1+arg2p1 > 0)], 4[(arg3 > 0 /\ 1+arg2 > 0 /\ arg3-arg2 <= 0 /\ 1+arg1 > 0)] Blocked [{}, {6[T]}, {}] Covered Trace 5[(1+arg3p1 > 0 /\ 1+arg2p1 > 0)] Blocked [{}, {4[T], 6[T]}] Backtrack Trace Blocked [{5[T]}] Accept unknown Build SHA: a05f16bf13df659c382799650051f91bf6828c7b