0 JBC
↳1 JBC2FIG (⇒)
↳2 JBCTerminationGraph
↳3 FIGtoITRSProof (⇒)
↳4 IDP
↳5 IDPNonInfProof (⇒)
↳6 AND
↳7 IDP
↳8 IDependencyGraphProof (⇔)
↳9 IDP
↳10 IDPNonInfProof (⇒)
↳11 AND
↳12 IDP
↳13 IDependencyGraphProof (⇔)
↳14 TRUE
↳15 IDP
↳16 IDependencyGraphProof (⇔)
↳17 TRUE
↳18 IDP
↳19 IDependencyGraphProof (⇔)
↳20 TRUE
/**
* Example taken from "A Term Rewriting Approach to the Automated Termination
* Analysis of Imperative Programs" (http://www.cs.unm.edu/~spf/papers/2009-02.pdf)
* and converted to Java.
*/
public class PastaB12 {
public static void main(String[] args) {
Random.args = args;
int x = Random.random();
int y = Random.random();
while (x > 0 || y > 0) {
if (x > 0) {
x--;
} else if (y > 0) {
y--;
} else {
continue;
}
}
}
}
public class Random {
static String[] args;
static int index = 0;
public static int random() {
String string = args[index];
index++;
return string.length();
}
}
Generated 20 rules for P and 2 rules for R.
Combined rules. Obtained 2 rules for P and 0 rules for R.
Filtered ground terms:
576_0_main_GT(x1, x2, x3, x4) → 576_0_main_GT(x2, x3, x4)
Cond_576_0_main_GT1(x1, x2, x3, x4, x5) → Cond_576_0_main_GT1(x1, x3, x4, x5)
Cond_576_0_main_GT(x1, x2, x3, x4, x5) → Cond_576_0_main_GT(x1, x4)
Filtered duplicate args:
576_0_main_GT(x1, x2, x3) → 576_0_main_GT(x2, x3)
Cond_576_0_main_GT1(x1, x2, x3, x4) → Cond_576_0_main_GT1(x1, x3, x4)
Combined rules. Obtained 2 rules for P and 0 rules for R.
Finished conversion. Obtained 2 rules for P and 0 rules for R. System has predefined symbols.
!= | ~ | Neq: (Integer, Integer) -> Boolean |
* | ~ | Mul: (Integer, Integer) -> Integer |
>= | ~ | Ge: (Integer, Integer) -> Boolean |
-1 | ~ | UnaryMinus: (Integer) -> Integer |
| | ~ | Bwor: (Integer, Integer) -> Integer |
/ | ~ | Div: (Integer, Integer) -> Integer |
= | ~ | Eq: (Integer, Integer) -> Boolean |
~ | Bwxor: (Integer, Integer) -> Integer | |
|| | ~ | Lor: (Boolean, Boolean) -> Boolean |
! | ~ | Lnot: (Boolean) -> Boolean |
< | ~ | Lt: (Integer, Integer) -> Boolean |
- | ~ | Sub: (Integer, Integer) -> Integer |
<= | ~ | Le: (Integer, Integer) -> Boolean |
> | ~ | Gt: (Integer, Integer) -> Boolean |
~ | ~ | Bwnot: (Integer) -> Integer |
% | ~ | Mod: (Integer, Integer) -> Integer |
& | ~ | Bwand: (Integer, Integer) -> Integer |
+ | ~ | Add: (Integer, Integer) -> Integer |
&& | ~ | Land: (Boolean, Boolean) -> Boolean |
Integer
(0) -> (1), if ((x1[0] > 0 →* TRUE)∧(x1[0] →* x1[1]))
(1) -> (0), if (x1[1] + -1 →* x1[0])
(1) -> (2), if ((x1[1] + -1 →* x1[2])∧(0 →* x0[2]))
(2) -> (3), if ((x0[2] > 0 →* TRUE)∧(x1[2] →* x1[3])∧(x0[2] →* x0[3]))
(3) -> (0), if ((x1[3] →* x1[0])∧(x0[3] + -1 →* 0))
(3) -> (2), if ((x1[3] →* x1[2])∧(x0[3] + -1 →* x0[2]))
(1) (>(x1[0], 0)=TRUE∧x1[0]=x1[1] ⇒ 576_0_MAIN_GT(x1[0], 0)≥NonInfC∧576_0_MAIN_GT(x1[0], 0)≥COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)∧(UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥))
(2) (>(x1[0], 0)=TRUE ⇒ 576_0_MAIN_GT(x1[0], 0)≥NonInfC∧576_0_MAIN_GT(x1[0], 0)≥COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)∧(UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥))
(3) (x1[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[(-1)bni_10 + (-1)Bound*bni_10] ≥ 0∧[(-1)bso_11] ≥ 0)
(4) (x1[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[(-1)bni_10 + (-1)Bound*bni_10] ≥ 0∧[(-1)bso_11] ≥ 0)
(5) (x1[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[(-1)bni_10 + (-1)Bound*bni_10] ≥ 0∧[(-1)bso_11] ≥ 0)
(6) (x1[0] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[(-1)bni_10 + (-1)Bound*bni_10] ≥ 0∧[(-1)bso_11] ≥ 0)
(7) (COND_576_0_MAIN_GT(TRUE, x1[1], 0)≥NonInfC∧COND_576_0_MAIN_GT(TRUE, x1[1], 0)≥576_0_MAIN_GT(+(x1[1], -1), 0)∧(UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥))
(8) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧[(-1)bso_13] ≥ 0)
(9) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧[(-1)bso_13] ≥ 0)
(10) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧[(-1)bso_13] ≥ 0)
(11) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧0 = 0∧[(-1)bso_13] ≥ 0)
(12) (>(x0[2], 0)=TRUE∧x1[2]=x1[3]∧x0[2]=x0[3] ⇒ 576_0_MAIN_GT(x1[2], x0[2])≥NonInfC∧576_0_MAIN_GT(x1[2], x0[2])≥COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])∧(UIncreasing(COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])), ≥))
(13) (>(x0[2], 0)=TRUE ⇒ 576_0_MAIN_GT(x1[2], x0[2])≥NonInfC∧576_0_MAIN_GT(x1[2], x0[2])≥COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])∧(UIncreasing(COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])), ≥))
(14) (x0[2] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])), ≥)∧[(-1)bni_14 + (-1)Bound*bni_14] + [bni_14]x0[2] ≥ 0∧[(-1)bso_15] ≥ 0)
(15) (x0[2] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])), ≥)∧[(-1)bni_14 + (-1)Bound*bni_14] + [bni_14]x0[2] ≥ 0∧[(-1)bso_15] ≥ 0)
(16) (x0[2] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])), ≥)∧[(-1)bni_14 + (-1)Bound*bni_14] + [bni_14]x0[2] ≥ 0∧[(-1)bso_15] ≥ 0)
(17) (x0[2] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])), ≥)∧0 = 0∧[(-1)bni_14 + (-1)Bound*bni_14] + [bni_14]x0[2] ≥ 0∧0 = 0∧[(-1)bso_15] ≥ 0)
(18) (x0[2] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])), ≥)∧0 = 0∧[(-1)Bound*bni_14] + [bni_14]x0[2] ≥ 0∧0 = 0∧[(-1)bso_15] ≥ 0)
(19) (COND_576_0_MAIN_GT1(TRUE, x1[3], x0[3])≥NonInfC∧COND_576_0_MAIN_GT1(TRUE, x1[3], x0[3])≥576_0_MAIN_GT(x1[3], +(x0[3], -1))∧(UIncreasing(576_0_MAIN_GT(x1[3], +(x0[3], -1))), ≥))
(20) ((UIncreasing(576_0_MAIN_GT(x1[3], +(x0[3], -1))), ≥)∧[1 + (-1)bso_17] ≥ 0)
(21) ((UIncreasing(576_0_MAIN_GT(x1[3], +(x0[3], -1))), ≥)∧[1 + (-1)bso_17] ≥ 0)
(22) ((UIncreasing(576_0_MAIN_GT(x1[3], +(x0[3], -1))), ≥)∧[1 + (-1)bso_17] ≥ 0)
(23) ((UIncreasing(576_0_MAIN_GT(x1[3], +(x0[3], -1))), ≥)∧0 = 0∧0 = 0∧[1 + (-1)bso_17] ≥ 0)
POL(TRUE) = 0
POL(FALSE) = 0
POL(576_0_MAIN_GT(x1, x2)) = [-1] + x2
POL(0) = 0
POL(COND_576_0_MAIN_GT(x1, x2, x3)) = [-1]
POL(>(x1, x2)) = [-1]
POL(+(x1, x2)) = x1 + x2
POL(-1) = [-1]
POL(COND_576_0_MAIN_GT1(x1, x2, x3)) = [-1] + x3
COND_576_0_MAIN_GT1(TRUE, x1[3], x0[3]) → 576_0_MAIN_GT(x1[3], +(x0[3], -1))
576_0_MAIN_GT(x1[0], 0) → COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)
576_0_MAIN_GT(x1[2], x0[2]) → COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])
576_0_MAIN_GT(x1[0], 0) → COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)
COND_576_0_MAIN_GT(TRUE, x1[1], 0) → 576_0_MAIN_GT(+(x1[1], -1), 0)
576_0_MAIN_GT(x1[2], x0[2]) → COND_576_0_MAIN_GT1(>(x0[2], 0), x1[2], x0[2])
!= | ~ | Neq: (Integer, Integer) -> Boolean |
* | ~ | Mul: (Integer, Integer) -> Integer |
>= | ~ | Ge: (Integer, Integer) -> Boolean |
-1 | ~ | UnaryMinus: (Integer) -> Integer |
| | ~ | Bwor: (Integer, Integer) -> Integer |
/ | ~ | Div: (Integer, Integer) -> Integer |
= | ~ | Eq: (Integer, Integer) -> Boolean |
~ | Bwxor: (Integer, Integer) -> Integer | |
|| | ~ | Lor: (Boolean, Boolean) -> Boolean |
! | ~ | Lnot: (Boolean) -> Boolean |
< | ~ | Lt: (Integer, Integer) -> Boolean |
- | ~ | Sub: (Integer, Integer) -> Integer |
<= | ~ | Le: (Integer, Integer) -> Boolean |
> | ~ | Gt: (Integer, Integer) -> Boolean |
~ | ~ | Bwnot: (Integer) -> Integer |
% | ~ | Mod: (Integer, Integer) -> Integer |
& | ~ | Bwand: (Integer, Integer) -> Integer |
+ | ~ | Add: (Integer, Integer) -> Integer |
&& | ~ | Land: (Boolean, Boolean) -> Boolean |
Integer
(1) -> (0), if (x1[1] + -1 →* x1[0])
(0) -> (1), if ((x1[0] > 0 →* TRUE)∧(x1[0] →* x1[1]))
(1) -> (2), if ((x1[1] + -1 →* x1[2])∧(0 →* x0[2]))
!= | ~ | Neq: (Integer, Integer) -> Boolean |
* | ~ | Mul: (Integer, Integer) -> Integer |
>= | ~ | Ge: (Integer, Integer) -> Boolean |
-1 | ~ | UnaryMinus: (Integer) -> Integer |
| | ~ | Bwor: (Integer, Integer) -> Integer |
/ | ~ | Div: (Integer, Integer) -> Integer |
= | ~ | Eq: (Integer, Integer) -> Boolean |
~ | Bwxor: (Integer, Integer) -> Integer | |
|| | ~ | Lor: (Boolean, Boolean) -> Boolean |
! | ~ | Lnot: (Boolean) -> Boolean |
< | ~ | Lt: (Integer, Integer) -> Boolean |
- | ~ | Sub: (Integer, Integer) -> Integer |
<= | ~ | Le: (Integer, Integer) -> Boolean |
> | ~ | Gt: (Integer, Integer) -> Boolean |
~ | ~ | Bwnot: (Integer) -> Integer |
% | ~ | Mod: (Integer, Integer) -> Integer |
& | ~ | Bwand: (Integer, Integer) -> Integer |
+ | ~ | Add: (Integer, Integer) -> Integer |
&& | ~ | Land: (Boolean, Boolean) -> Boolean |
Integer
(1) -> (0), if (x1[1] + -1 →* x1[0])
(0) -> (1), if ((x1[0] > 0 →* TRUE)∧(x1[0] →* x1[1]))
(1) (COND_576_0_MAIN_GT(TRUE, x1[1], 0)≥NonInfC∧COND_576_0_MAIN_GT(TRUE, x1[1], 0)≥576_0_MAIN_GT(+(x1[1], -1), 0)∧(UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥))
(2) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧[2 + (-1)bso_7] ≥ 0)
(3) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧[2 + (-1)bso_7] ≥ 0)
(4) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧[2 + (-1)bso_7] ≥ 0)
(5) ((UIncreasing(576_0_MAIN_GT(+(x1[1], -1), 0)), ≥)∧0 = 0∧[2 + (-1)bso_7] ≥ 0)
(6) (>(x1[0], 0)=TRUE∧x1[0]=x1[1] ⇒ 576_0_MAIN_GT(x1[0], 0)≥NonInfC∧576_0_MAIN_GT(x1[0], 0)≥COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)∧(UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥))
(7) (>(x1[0], 0)=TRUE ⇒ 576_0_MAIN_GT(x1[0], 0)≥NonInfC∧576_0_MAIN_GT(x1[0], 0)≥COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)∧(UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥))
(8) (x1[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[(-1)bni_8 + (-1)Bound*bni_8] + [(2)bni_8]x1[0] ≥ 0∧[(-1)bso_9] ≥ 0)
(9) (x1[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[(-1)bni_8 + (-1)Bound*bni_8] + [(2)bni_8]x1[0] ≥ 0∧[(-1)bso_9] ≥ 0)
(10) (x1[0] + [-1] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[(-1)bni_8 + (-1)Bound*bni_8] + [(2)bni_8]x1[0] ≥ 0∧[(-1)bso_9] ≥ 0)
(11) (x1[0] ≥ 0 ⇒ (UIncreasing(COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)), ≥)∧[bni_8 + (-1)Bound*bni_8] + [(2)bni_8]x1[0] ≥ 0∧[(-1)bso_9] ≥ 0)
POL(TRUE) = 0
POL(FALSE) = 0
POL(COND_576_0_MAIN_GT(x1, x2, x3)) = [-1] + [2]x2
POL(0) = 0
POL(576_0_MAIN_GT(x1, x2)) = [-1] + [2]x1
POL(+(x1, x2)) = x1 + x2
POL(-1) = [-1]
POL(>(x1, x2)) = [2]
COND_576_0_MAIN_GT(TRUE, x1[1], 0) → 576_0_MAIN_GT(+(x1[1], -1), 0)
576_0_MAIN_GT(x1[0], 0) → COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)
576_0_MAIN_GT(x1[0], 0) → COND_576_0_MAIN_GT(>(x1[0], 0), x1[0], 0)
!= | ~ | Neq: (Integer, Integer) -> Boolean |
* | ~ | Mul: (Integer, Integer) -> Integer |
>= | ~ | Ge: (Integer, Integer) -> Boolean |
-1 | ~ | UnaryMinus: (Integer) -> Integer |
| | ~ | Bwor: (Integer, Integer) -> Integer |
/ | ~ | Div: (Integer, Integer) -> Integer |
= | ~ | Eq: (Integer, Integer) -> Boolean |
~ | Bwxor: (Integer, Integer) -> Integer | |
|| | ~ | Lor: (Boolean, Boolean) -> Boolean |
! | ~ | Lnot: (Boolean) -> Boolean |
< | ~ | Lt: (Integer, Integer) -> Boolean |
- | ~ | Sub: (Integer, Integer) -> Integer |
<= | ~ | Le: (Integer, Integer) -> Boolean |
> | ~ | Gt: (Integer, Integer) -> Boolean |
~ | ~ | Bwnot: (Integer) -> Integer |
% | ~ | Mod: (Integer, Integer) -> Integer |
& | ~ | Bwand: (Integer, Integer) -> Integer |
+ | ~ | Add: (Integer, Integer) -> Integer |
&& | ~ | Land: (Boolean, Boolean) -> Boolean |
Integer
!= | ~ | Neq: (Integer, Integer) -> Boolean |
* | ~ | Mul: (Integer, Integer) -> Integer |
>= | ~ | Ge: (Integer, Integer) -> Boolean |
-1 | ~ | UnaryMinus: (Integer) -> Integer |
| | ~ | Bwor: (Integer, Integer) -> Integer |
/ | ~ | Div: (Integer, Integer) -> Integer |
= | ~ | Eq: (Integer, Integer) -> Boolean |
~ | Bwxor: (Integer, Integer) -> Integer | |
|| | ~ | Lor: (Boolean, Boolean) -> Boolean |
! | ~ | Lnot: (Boolean) -> Boolean |
< | ~ | Lt: (Integer, Integer) -> Boolean |
- | ~ | Sub: (Integer, Integer) -> Integer |
<= | ~ | Le: (Integer, Integer) -> Boolean |
> | ~ | Gt: (Integer, Integer) -> Boolean |
~ | ~ | Bwnot: (Integer) -> Integer |
% | ~ | Mod: (Integer, Integer) -> Integer |
& | ~ | Bwand: (Integer, Integer) -> Integer |
+ | ~ | Add: (Integer, Integer) -> Integer |
&& | ~ | Land: (Boolean, Boolean) -> Boolean |
Integer
!= | ~ | Neq: (Integer, Integer) -> Boolean |
* | ~ | Mul: (Integer, Integer) -> Integer |
>= | ~ | Ge: (Integer, Integer) -> Boolean |
-1 | ~ | UnaryMinus: (Integer) -> Integer |
| | ~ | Bwor: (Integer, Integer) -> Integer |
/ | ~ | Div: (Integer, Integer) -> Integer |
= | ~ | Eq: (Integer, Integer) -> Boolean |
~ | Bwxor: (Integer, Integer) -> Integer | |
|| | ~ | Lor: (Boolean, Boolean) -> Boolean |
! | ~ | Lnot: (Boolean) -> Boolean |
< | ~ | Lt: (Integer, Integer) -> Boolean |
- | ~ | Sub: (Integer, Integer) -> Integer |
<= | ~ | Le: (Integer, Integer) -> Boolean |
> | ~ | Gt: (Integer, Integer) -> Boolean |
~ | ~ | Bwnot: (Integer) -> Integer |
% | ~ | Mod: (Integer, Integer) -> Integer |
& | ~ | Bwand: (Integer, Integer) -> Integer |
+ | ~ | Add: (Integer, Integer) -> Integer |
&& | ~ | Land: (Boolean, Boolean) -> Boolean |
Integer