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Java Bytec 64199 pair #381919339
details
property
value
status
complete
benchmark
cousot_rec.jar
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n054.star.cs.uiowa.edu
space
Julia_12_recursive
run statistics
property
value
solver
AProVE
configuration
standard
runtime (wallclock)
2.29732704163 seconds
cpu usage
5.837540538
max memory
5.37567232E8
stage attributes
key
value
output-size
2770
starexec-result
NO
output
/export/starexec/sandbox/solver/bin/starexec_run_standard /export/starexec/sandbox/benchmark/theBenchmark.jar /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO proof of /export/starexec/sandbox/benchmark/theBenchmark.jar # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty termination of the given Bare JBC problem could be disproven: (0) Bare JBC problem (1) BareJBCToJBCProof [EQUIVALENT, 96 ms] (2) JBC problem (3) JBCNonTerm [COMPLETE, 352 ms] (4) NO ---------------------------------------- (0) Obligation: need to prove termination of the following program: public class Cousot { public static void loop(int i, int j) { if (i < j) i = i+4; else { j = j+1; i = i+2; } loop(i, j); } public static void main(String[] args) { loop(2, 0); } } ---------------------------------------- (1) BareJBCToJBCProof (EQUIVALENT) initialized classpath ---------------------------------------- (2) Obligation: need to prove termination of the following program: public class Cousot { public static void loop(int i, int j) { if (i < j) i = i+4; else { j = j+1; i = i+2; } loop(i, j); } public static void main(String[] args) { loop(2, 0); } } ---------------------------------------- (3) JBCNonTerm (COMPLETE) Reached a loop using the following run: 0:<Cousot.main||0: push 2|| - || -> YES: (JL1) 1:<Cousot.main||1: push 0|| - ||2> YES: (JL1) 2:<Cousot.main||2: Cousot.loop(II)V|| - ||2, 0> YES: (JL1) 3:<Cousot.loop||0: load INT #0||#0: 2, #1: 0|| -> YES: (JL1) Start state of loop: [i19(lv_0_0), i20(lv_0_1)] <Cousot.loop||0: load INT #0||#0: i21, #1: i22|| -> i19: [2,+inf)(l3) i20: [0,+inf)(l3) i21: [2,+inf)(l3) i22: [0,+inf)(l3) YES: (JL1) In the loop head node, references [i21, i22, i19, i20] were interesting. All methods calls in the loop body are side-effect free, hence they can be ignored. By SMT, we could prove
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