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Java_Bytecode pair #487571579
details
property
value
status
complete
benchmark
RandomHard.jar
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n140.star.cs.uiowa.edu
space
Fuhs_13
run statistics
property
value
solver
AProVE
configuration
standard
runtime (wallclock)
12.0568740368 seconds
cpu usage
25.505793942
max memory
3.259850752E9
stage attributes
key
value
output-size
52801
starexec-result
MAYBE
output
/export/starexec/sandbox2/solver/bin/starexec_run_standard /export/starexec/sandbox2/benchmark/theBenchmark.jar /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- MAYBE proof of /export/starexec/sandbox2/benchmark/theBenchmark.jar # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty termination of the given Bare JBC problem could not be shown: (0) Bare JBC problem (1) BareJBCToJBCProof [EQUIVALENT, 96 ms] (2) JBC problem (3) JBCToGraph [EQUIVALENT, 955 ms] (4) JBCTerminationGraph (5) TerminationGraphToSCCProof [SOUND, 0 ms] (6) AND (7) JBCTerminationSCC (8) SCCToIRSProof [SOUND, 132 ms] (9) IRSwT (10) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (11) IRSwT (12) IntTRSCompressionProof [EQUIVALENT, 0 ms] (13) IRSwT (14) TempFilterProof [SOUND, 1781 ms] (15) IRSwT (16) IntTRSCompressionProof [EQUIVALENT, 0 ms] (17) IRSwT (18) JBCTerminationSCC (19) SCCToIRSProof [SOUND, 19 ms] (20) IRSwT (21) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (22) IRSwT (23) IRSwTTerminationDigraphProof [EQUIVALENT, 74 ms] (24) IRSwT (25) IntTRSCompressionProof [EQUIVALENT, 0 ms] (26) IRSwT (27) FilterProof [EQUIVALENT, 0 ms] (28) IntTRS (29) IntTRSCompressionProof [EQUIVALENT, 0 ms] (30) IntTRS (31) IntTRSPeriodicNontermProof [COMPLETE, 11 ms] (32) NO (33) JBCTerminationSCC (34) SCCToIRSProof [SOUND, 13 ms] (35) IRSwT (36) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (37) IRSwT (38) IRSwTTerminationDigraphProof [EQUIVALENT, 8 ms] (39) IRSwT (40) IntTRSCompressionProof [EQUIVALENT, 0 ms] (41) IRSwT (42) TempFilterProof [SOUND, 39 ms] (43) IntTRS (44) PolynomialOrderProcessor [EQUIVALENT, 5 ms] (45) YES ---------------------------------------- (0) Obligation: need to prove termination of the following program: /** * Rather inefficient random number generator that can generate infinitely * many positive integers from a single positive integer (the * "random source") by taking the exponents of its prime factorization. */ public class RandomHard { // a single natural number, to give rise to infinitely many natural numbers // from its prime factorization (if the datatype int had infinite precision) final private int source; // use the exponent of the nextPrimeIndex-th prime in the unique // prime factorization of source as the next "randomly generated" // natural number private int nextPrimeIndex; public RandomHard(int source) { this.source = source; this.nextPrimeIndex = 1; } public static void main(String[] args) { int source = args[0].length(); if (source < 1) { return; } RandomHard random = new RandomHard(source); int limit = args[1].length(); for (int i = 0; i < limit; ++i) { random.getNext(); } }
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