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Java_Bytecode 2019-04-01 06.50 pair #433315582
details
property
value
status
complete
benchmark
costa09-example_5.jar
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n111.star.cs.uiowa.edu
space
Costa_Julia_09
run statistics
property
value
solver
AProVE
configuration
standard
runtime (wallclock)
2.19051 seconds
cpu usage
4.79963
user time
4.58398
system time
0.215648
max virtual memory
1.8478228E7
max residence set size
349884.0
stage attributes
key
value
starexec-result
NO
output
4.60/2.12 NO 4.60/2.16 proof of /export/starexec/sandbox/benchmark/theBenchmark.jar 4.60/2.16 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 4.60/2.16 4.60/2.16 4.60/2.16 termination of the given Bare JBC problem could be disproven: 4.60/2.16 4.60/2.16 (0) Bare JBC problem 4.60/2.16 (1) BareJBCToJBCProof [EQUIVALENT, 96 ms] 4.60/2.16 (2) JBC problem 4.60/2.16 (3) JBCNonTerm [COMPLETE, 203 ms] 4.60/2.16 (4) NO 4.60/2.16 4.60/2.16 4.60/2.16 ---------------------------------------- 4.60/2.16 4.60/2.16 (0) 4.60/2.16 Obligation: 4.60/2.16 need to prove termination of the following program: 4.60/2.16 package example_5; 4.60/2.16 4.60/2.16 public class Loops2 { 4.60/2.16 4.60/2.16 int i; 4.60/2.16 4.60/2.16 /** 4.60/2.16 * Same simple arithmetic loop, but now the loop counter 4.60/2.16 * is a numeric field. 4.60/2.16 */ 4.60/2.16 public void m(int n) { 4.60/2.16 while (i < n) { 4.60/2.16 i++; 4.60/2.16 } 4.60/2.16 } 4.60/2.16 4.60/2.16 } 4.60/2.16 4.60/2.16 4.60/2.16 package example_5; 4.60/2.16 4.60/2.16 public class Loops3 extends Loops2 { 4.60/2.16 4.60/2.16 /** 4.60/2.16 * A loop involving two numeric fields 4.60/2.16 * which are modified in the body of the loop 4.60/2.16 */ 4.60/2.16 public void m(int n, Loops3 x) { 4.60/2.16 while (i < n) { 4.60/2.16 i++; 4.60/2.16 x.i--; 4.60/2.16 } 4.60/2.16 4.60/2.16 } 4.60/2.16 4.60/2.16 } 4.60/2.16 4.60/2.16 4.60/2.16 package example_5; 4.60/2.16 4.60/2.16 public class Test { 4.60/2.16 /** 4.60/2.16 * Execution of the main method does not terminate because in the call to 4.60/2.16 * m, the objects o1 and o2 are aliased and therefore by decrementing x.i we are 4.60/2.16 * also decrementing this.i in the loop in method m. 4.60/2.16 */ 4.60/2.16 public static void main(String[] args) { 4.60/2.16 Loops3 o1 = new Loops3(); 4.60/2.16 Loops3 o2 = o1; 4.60/2.16 o1.m(10, o2); 4.60/2.16 } 4.60/2.16 4.60/2.16 } 4.60/2.16 4.60/2.16 4.60/2.16 4.60/2.16 ---------------------------------------- 4.60/2.16 4.60/2.16 (1) BareJBCToJBCProof (EQUIVALENT) 4.60/2.16 initialized classpath 4.60/2.16 ---------------------------------------- 4.60/2.16 4.60/2.16 (2) 4.60/2.16 Obligation: 4.60/2.16 need to prove termination of the following program: 4.60/2.16 package example_5; 4.60/2.16 4.60/2.16 public class Loops2 { 4.60/2.16 4.60/2.16 int i; 4.60/2.16 4.60/2.16 /** 4.60/2.16 * Same simple arithmetic loop, but now the loop counter 4.60/2.16 * is a numeric field. 4.60/2.16 */ 4.60/2.16 public void m(int n) { 4.60/2.16 while (i < n) { 4.60/2.16 i++; 4.60/2.16 } 4.60/2.16 } 4.60/2.16
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