0 JBC
↳1 JBCToGraph (⇒, 280 ms)
↳2 JBCTerminationGraph
↳3 TerminationGraphToSCCProof (⇒, 0 ms)
↳4 JBCTerminationSCC
↳5 SCCToIDPv1Proof (⇒, 110 ms)
↳6 IDP
↳7 IDPNonInfProof (⇒, 130 ms)
↳8 AND
↳9 IDP
↳10 IDependencyGraphProof (⇔, 0 ms)
↳11 TRUE
↳12 IDP
↳13 IDependencyGraphProof (⇔, 0 ms)
↳14 TRUE
/**
* Java can do infinite data objects, too.
* Here we take the first n elements from an
* ascending infinite list of integer numbers.
*
* @author Carsten Fuhs
*/
public class Take {
public static int[] take(int n, MyIterator f) {
int[] result = new int[n];
for (int i = 0; i < n; ++i) {
if (f.hasNext()) {
result[i] = f.next();
}
else {
break;
}
}
return result;
}
public static void main(String args[]) {
int start = args[0].length();
int howMany = args[1].length();
From f = new From(start);
int[] firstHowMany = take(howMany, f);
}
}
interface MyIterator {
boolean hasNext();
int next();
}
class From implements MyIterator {
private int current;
public From(int start) {
this.current = start;
}
public boolean hasNext() {
return true;
}
public int next() {
return current++;
}
}
Generated 26 rules for P and 0 rules for R.
P rules:
651_0_take_Load(EOS(STATIC_651), i47, i47, java.lang.Object(ARRAY(i47)), i80, i80) → 653_0_take_GE(EOS(STATIC_653), i47, i47, java.lang.Object(ARRAY(i47)), i80, i80, i47)
653_0_take_GE(EOS(STATIC_653), i47, i47, java.lang.Object(ARRAY(i47)), i80, i80, i47) → 656_0_take_GE(EOS(STATIC_656), i47, i47, java.lang.Object(ARRAY(i47)), i80, i80, i47)
656_0_take_GE(EOS(STATIC_656), i47, i47, java.lang.Object(ARRAY(i47)), i80, i80, i47) → 659_0_take_Load(EOS(STATIC_659), i47, i47, java.lang.Object(ARRAY(i47)), i80) | <(i80, i47)
659_0_take_Load(EOS(STATIC_659), i47, i47, java.lang.Object(ARRAY(i47)), i80) → 662_0_take_InvokeMethod(EOS(STATIC_662), i47, i47, java.lang.Object(ARRAY(i47)), i80)
662_0_take_InvokeMethod(EOS(STATIC_662), i47, i47, java.lang.Object(ARRAY(i47)), i80) → 665_0_hasNext_ConstantStackPush(EOS(STATIC_665), i47, i47, java.lang.Object(ARRAY(i47)), i80)
665_0_hasNext_ConstantStackPush(EOS(STATIC_665), i47, i47, java.lang.Object(ARRAY(i47)), i80) → 670_0_hasNext_Return(EOS(STATIC_670), i47, i47, java.lang.Object(ARRAY(i47)), i80, 1)
670_0_hasNext_Return(EOS(STATIC_670), i47, i47, java.lang.Object(ARRAY(i47)), i80, matching1) → 671_0_take_EQ(EOS(STATIC_671), i47, i47, java.lang.Object(ARRAY(i47)), i80, 1) | =(matching1, 1)
671_0_take_EQ(EOS(STATIC_671), i47, i47, java.lang.Object(ARRAY(i47)), i80, matching1) → 673_0_take_Load(EOS(STATIC_673), i47, i47, java.lang.Object(ARRAY(i47)), i80) | &&(>(1, 0), =(matching1, 1))
673_0_take_Load(EOS(STATIC_673), i47, i47, java.lang.Object(ARRAY(i47)), i80) → 675_0_take_Load(EOS(STATIC_675), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)))
675_0_take_Load(EOS(STATIC_675), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47))) → 676_0_take_Load(EOS(STATIC_676), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
676_0_take_Load(EOS(STATIC_676), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 678_0_take_InvokeMethod(EOS(STATIC_678), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
678_0_take_InvokeMethod(EOS(STATIC_678), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 680_0_next_Load(EOS(STATIC_680), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
680_0_next_Load(EOS(STATIC_680), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 681_0_next_Duplicate(EOS(STATIC_681), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
681_0_next_Duplicate(EOS(STATIC_681), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 683_0_next_FieldAccess(EOS(STATIC_683), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
683_0_next_FieldAccess(EOS(STATIC_683), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 685_0_next_Duplicate(EOS(STATIC_685), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
685_0_next_Duplicate(EOS(STATIC_685), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 687_0_next_ConstantStackPush(EOS(STATIC_687), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
687_0_next_ConstantStackPush(EOS(STATIC_687), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 689_0_next_IntArithmetic(EOS(STATIC_689), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80, 1)
689_0_next_IntArithmetic(EOS(STATIC_689), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80, matching1) → 692_0_next_FieldAccess(EOS(STATIC_692), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) | =(matching1, 1)
692_0_next_FieldAccess(EOS(STATIC_692), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 695_0_next_Return(EOS(STATIC_695), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
695_0_next_Return(EOS(STATIC_695), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 698_0_take_ArrayAccess(EOS(STATIC_698), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
698_0_take_ArrayAccess(EOS(STATIC_698), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 700_0_take_ArrayAccess(EOS(STATIC_700), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80)
700_0_take_ArrayAccess(EOS(STATIC_700), i47, i47, java.lang.Object(ARRAY(i47)), i80, java.lang.Object(ARRAY(i47)), i80) → 704_0_take_Inc(EOS(STATIC_704), i47, i47, java.lang.Object(ARRAY(i47)), i80) | <(i80, i47)
704_0_take_Inc(EOS(STATIC_704), i47, i47, java.lang.Object(ARRAY(i47)), i80) → 709_0_take_JMP(EOS(STATIC_709), i47, i47, java.lang.Object(ARRAY(i47)), +(i80, 1)) | >=(i80, 0)
709_0_take_JMP(EOS(STATIC_709), i47, i47, java.lang.Object(ARRAY(i47)), i86) → 726_0_take_Load(EOS(STATIC_726), i47, i47, java.lang.Object(ARRAY(i47)), i86)
726_0_take_Load(EOS(STATIC_726), i47, i47, java.lang.Object(ARRAY(i47)), i86) → 649_0_take_Load(EOS(STATIC_649), i47, i47, java.lang.Object(ARRAY(i47)), i86)
649_0_take_Load(EOS(STATIC_649), i47, i47, java.lang.Object(ARRAY(i47)), i80) → 651_0_take_Load(EOS(STATIC_651), i47, i47, java.lang.Object(ARRAY(i47)), i80, i80)
R rules:
Combined rules. Obtained 1 conditional rules for P and 0 conditional rules for R.
P rules:
651_0_take_Load(EOS(STATIC_651), x0, x0, java.lang.Object(ARRAY(x0)), x1, x1) → 651_0_take_Load(EOS(STATIC_651), x0, x0, java.lang.Object(ARRAY(x0)), +(x1, 1), +(x1, 1)) | &&(>(+(x1, 1), 0), <(x1, x0))
R rules:
Filtered ground terms:
651_0_take_Load(x1, x2, x3, x4, x5, x6) → 651_0_take_Load(x2, x3, x4, x5, x6)
EOS(x1) → EOS
Cond_651_0_take_Load(x1, x2, x3, x4, x5, x6, x7) → Cond_651_0_take_Load(x1, x3, x4, x5, x6, x7)
Filtered duplicate args:
651_0_take_Load(x1, x2, x3, x4, x5) → 651_0_take_Load(x3, x5)
Cond_651_0_take_Load(x1, x2, x3, x4, x5, x6) → Cond_651_0_take_Load(x1, x4, x6)
Combined rules. Obtained 1 conditional rules for P and 0 conditional rules for R.
P rules:
651_0_take_Load(java.lang.Object(ARRAY(x0)), x1) → 651_0_take_Load(java.lang.Object(ARRAY(x0)), +(x1, 1)) | &&(>(x1, -1), <(x1, x0))
R rules:
Finished conversion. Obtained 2 rules for P and 0 rules for R. System has predefined symbols.
P rules:
651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0)), x1) → COND_651_0_TAKE_LOAD(&&(>(x1, -1), <(x1, x0)), java.lang.Object(ARRAY(x0)), x1)
COND_651_0_TAKE_LOAD(TRUE, java.lang.Object(ARRAY(x0)), x1) → 651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0)), +(x1, 1))
R rules:
!= | ~ | 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 |
Boolean, Integer
(0) -> (1), if (x1[0] > -1 && x1[0] < x0[0] ∧java.lang.Object(ARRAY(x0[0])) →* java.lang.Object(ARRAY(x0[1]))∧x1[0] →* x1[1])
(1) -> (0), if (java.lang.Object(ARRAY(x0[1])) →* java.lang.Object(ARRAY(x0[0]))∧x1[1] + 1 →* x1[0])
(1) (&&(>(x1[0], -1), <(x1[0], x0[0]))=TRUE∧java.lang.Object(ARRAY(x0[0]))=java.lang.Object(ARRAY(x0[1]))∧x1[0]=x1[1] ⇒ 651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[0])), x1[0])≥NonInfC∧651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[0])), x1[0])≥COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])∧(UIncreasing(COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])), ≥))
(2) (>(x1[0], -1)=TRUE∧<(x1[0], x0[0])=TRUE ⇒ 651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[0])), x1[0])≥NonInfC∧651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[0])), x1[0])≥COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])∧(UIncreasing(COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])), ≥))
(3) (x1[0] ≥ 0∧x0[0] + [-1] + [-1]x1[0] ≥ 0 ⇒ (UIncreasing(COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])), ≥)∧[(-1)bni_10 + (-1)Bound*bni_10] + [(-1)bni_10]x1[0] + [(2)bni_10]x0[0] ≥ 0∧[(-1)bso_11] ≥ 0)
(4) (x1[0] ≥ 0∧x0[0] + [-1] + [-1]x1[0] ≥ 0 ⇒ (UIncreasing(COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])), ≥)∧[(-1)bni_10 + (-1)Bound*bni_10] + [(-1)bni_10]x1[0] + [(2)bni_10]x0[0] ≥ 0∧[(-1)bso_11] ≥ 0)
(5) (x1[0] ≥ 0∧x0[0] + [-1] + [-1]x1[0] ≥ 0 ⇒ (UIncreasing(COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])), ≥)∧[(-1)bni_10 + (-1)Bound*bni_10] + [(-1)bni_10]x1[0] + [(2)bni_10]x0[0] ≥ 0∧[(-1)bso_11] ≥ 0)
(6) (x1[0] ≥ 0∧x0[0] ≥ 0 ⇒ (UIncreasing(COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])), ≥)∧[bni_10 + (-1)Bound*bni_10] + [bni_10]x1[0] + [(2)bni_10]x0[0] ≥ 0∧[(-1)bso_11] ≥ 0)
(7) (COND_651_0_TAKE_LOAD(TRUE, java.lang.Object(ARRAY(x0[1])), x1[1])≥NonInfC∧COND_651_0_TAKE_LOAD(TRUE, java.lang.Object(ARRAY(x0[1])), x1[1])≥651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[1])), +(x1[1], 1))∧(UIncreasing(651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[1])), +(x1[1], 1))), ≥))
(8) ((UIncreasing(651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[1])), +(x1[1], 1))), ≥)∧[bni_12] = 0∧[1 + (-1)bso_13] ≥ 0)
(9) ((UIncreasing(651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[1])), +(x1[1], 1))), ≥)∧[bni_12] = 0∧[1 + (-1)bso_13] ≥ 0)
(10) ((UIncreasing(651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[1])), +(x1[1], 1))), ≥)∧[bni_12] = 0∧[1 + (-1)bso_13] ≥ 0)
(11) ((UIncreasing(651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[1])), +(x1[1], 1))), ≥)∧[bni_12] = 0∧0 = 0∧0 = 0∧[1 + (-1)bso_13] ≥ 0)
POL(TRUE) = 0
POL(FALSE) = 0
POL(651_0_TAKE_LOAD(x1, x2)) = [-1] + [-1]x2 + [2]x1
POL(java.lang.Object(x1)) = x1
POL(ARRAY(x1)) = x1
POL(COND_651_0_TAKE_LOAD(x1, x2, x3)) = [-1] + [-1]x3 + [2]x2
POL(&&(x1, x2)) = [-1]
POL(>(x1, x2)) = [-1]
POL(-1) = [-1]
POL(<(x1, x2)) = [-1]
POL(+(x1, x2)) = x1 + x2
POL(1) = [1]
COND_651_0_TAKE_LOAD(TRUE, java.lang.Object(ARRAY(x0[1])), x1[1]) → 651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[1])), +(x1[1], 1))
651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[0])), x1[0]) → COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[0])
651_0_TAKE_LOAD(java.lang.Object(ARRAY(x0[0])), x1[0]) → COND_651_0_TAKE_LOAD(&&(>(x1[0], -1), <(x1[0], x0[0])), java.lang.Object(ARRAY(x0[0])), x1[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 |
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