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Java_Bytecode 2019-04-01 06.50 pair #433315803
details
property
value
status
complete
benchmark
GCD4.jar
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n176.star.cs.uiowa.edu
space
Aprove_09
run statistics
property
value
solver
AProVE
configuration
standard
runtime (wallclock)
2.79393 seconds
cpu usage
7.21911
user time
6.88065
system time
0.338462
max virtual memory
1.9945712E7
max residence set size
517924.0
stage attributes
key
value
starexec-result
YES
output
6.88/2.71 YES 7.10/2.76 proof of /export/starexec/sandbox/benchmark/theBenchmark.jar 7.10/2.76 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 7.10/2.76 7.10/2.76 7.10/2.76 termination of the given Bare JBC problem could be proven: 7.10/2.76 7.10/2.76 (0) Bare JBC problem 7.10/2.76 (1) BareJBCToJBCProof [EQUIVALENT, 95 ms] 7.10/2.76 (2) JBC problem 7.10/2.76 (3) JBCToGraph [EQUIVALENT, 324 ms] 7.10/2.76 (4) JBCTerminationGraph 7.10/2.76 (5) TerminationGraphToSCCProof [SOUND, 0 ms] 7.10/2.76 (6) JBCTerminationSCC 7.10/2.76 (7) SCCToIRSProof [SOUND, 145 ms] 7.10/2.76 (8) IRSwT 7.10/2.76 (9) IRSFormatTransformerProof [EQUIVALENT, 0 ms] 7.10/2.76 (10) IRSwT 7.10/2.76 (11) IRSwTTerminationDigraphProof [EQUIVALENT, 23 ms] 7.10/2.76 (12) IRSwT 7.10/2.76 (13) IntTRSCompressionProof [EQUIVALENT, 0 ms] 7.10/2.76 (14) IRSwT 7.10/2.76 (15) TempFilterProof [SOUND, 59 ms] 7.10/2.76 (16) IntTRS 7.10/2.76 (17) PolynomialOrderProcessor [EQUIVALENT, 5 ms] 7.10/2.76 (18) IntTRS 7.10/2.76 (19) RankingReductionPairProof [EQUIVALENT, 0 ms] 7.10/2.76 (20) YES 7.10/2.76 7.10/2.76 7.10/2.76 ---------------------------------------- 7.10/2.76 7.10/2.76 (0) 7.10/2.76 Obligation: 7.10/2.76 need to prove termination of the following program: 7.10/2.76 public class GCD4 { 7.10/2.76 public static int mod(int a, int b) { 7.10/2.76 while(a>=b && b > 0) { 7.10/2.76 a -= b; 7.10/2.76 } 7.10/2.76 return a; 7.10/2.76 } 7.10/2.76 7.10/2.76 public static int gcd(int a, int b) { 7.10/2.76 int tmp; 7.10/2.76 while(b > 0 && a > 0) { 7.10/2.76 tmp = b; 7.10/2.76 b = mod(a, b); 7.10/2.76 a = tmp; 7.10/2.76 } 7.10/2.76 return a; 7.10/2.76 } 7.10/2.76 7.10/2.76 public static void main(String[] args) { 7.10/2.76 Random.args = args; 7.10/2.76 int x = Random.random(); 7.10/2.76 int y = Random.random(); 7.10/2.76 gcd(x, y); 7.10/2.76 } 7.10/2.76 } 7.10/2.76 7.10/2.76 7.10/2.76 public class Random { 7.10/2.76 static String[] args; 7.10/2.76 static int index = 0; 7.10/2.76 7.10/2.76 public static int random() { 7.10/2.76 String string = args[index]; 7.10/2.76 index++; 7.10/2.76 return string.length(); 7.10/2.76 } 7.10/2.76 } 7.10/2.76 7.10/2.76 7.10/2.76 7.10/2.76 ---------------------------------------- 7.10/2.76 7.10/2.76 (1) BareJBCToJBCProof (EQUIVALENT) 7.10/2.76 initialized classpath 7.10/2.76 ---------------------------------------- 7.10/2.76 7.10/2.76 (2) 7.10/2.76 Obligation: 7.10/2.76 need to prove termination of the following program: 7.10/2.76 public class GCD4 { 7.10/2.76 public static int mod(int a, int b) { 7.10/2.76 while(a>=b && b > 0) { 7.10/2.76 a -= b; 7.10/2.76 } 7.10/2.76 return a; 7.10/2.76 } 7.10/2.76 7.10/2.76 public static int gcd(int a, int b) { 7.10/2.76 int tmp; 7.10/2.76 while(b > 0 && a > 0) { 7.10/2.76 tmp = b; 7.10/2.76 b = mod(a, b); 7.10/2.76 a = tmp; 7.10/2.76 } 7.10/2.76 return a;
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