/export/starexec/sandbox/solver/bin/starexec_run_standard /export/starexec/sandbox/benchmark/theBenchmark.jar /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES proof of /export/starexec/sandbox/benchmark/theBenchmark.jar # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty termination of the given Bare JBC problem could be proven: (0) Bare JBC problem (1) BareJBCToJBCProof [EQUIVALENT, 96 ms] (2) JBC problem (3) JBCToGraph [EQUIVALENT, 287 ms] (4) JBCTerminationGraph (5) TerminationGraphToSCCProof [SOUND, 0 ms] (6) JBCTerminationSCC (7) SCCToIRSProof [SOUND, 71 ms] (8) IRSwT (9) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (10) IRSwT (11) IRSwTTerminationDigraphProof [EQUIVALENT, 20 ms] (12) IRSwT (13) IntTRSCompressionProof [EQUIVALENT, 0 ms] (14) IRSwT (15) TempFilterProof [SOUND, 43 ms] (16) IntTRS (17) PolynomialOrderProcessor [EQUIVALENT, 16 ms] (18) YES ---------------------------------------- (0) Obligation: need to prove termination of the following program: /** * Example taken from "A Term Rewriting Approach to the Automated Termination * Analysis of Imperative Programs" (http://www.cs.unm.edu/~spf/papers/2009-02.pdf) * and converted to Java. */ public class PastaC7 { public static void main(String[] args) { Random.args = args; int i = Random.random(); int j = Random.random(); int k = Random.random(); while (i <= 100 && j <= k) { int t = i; i = j; j = i + 1; k--; } } } public class Random { static String[] args; static int index = 0; public static int random() { String string = args[index]; index++; return string.length(); } } ---------------------------------------- (1) BareJBCToJBCProof (EQUIVALENT) initialized classpath ---------------------------------------- (2) Obligation: need to prove termination of the following program: /** * Example taken from "A Term Rewriting Approach to the Automated Termination * Analysis of Imperative Programs" (http://www.cs.unm.edu/~spf/papers/2009-02.pdf) * and converted to Java. */ public class PastaC7 { public static void main(String[] args) { Random.args = args; int i = Random.random(); int j = Random.random(); int k = Random.random(); while (i <= 100 && j <= k) { int t = i; i = j; j = i + 1; k--; } } } public class Random { static String[] args; static int index = 0; public static int random() { String string = args[index]; index++; return string.length(); } } ---------------------------------------- (3) JBCToGraph (EQUIVALENT) Constructed TerminationGraph. ---------------------------------------- (4) Obligation: Termination Graph based on JBC Program: PastaC7.main([Ljava/lang/String;)V: Graph of 256 nodes with 1 SCC. ---------------------------------------- (5) TerminationGraphToSCCProof (SOUND) Splitted TerminationGraph to 1 SCCs. ---------------------------------------- (6) Obligation: SCC of termination graph based on JBC Program. SCC contains nodes from the following methods: PastaC7.main([Ljava/lang/String;)V SCC calls the following helper methods: Performed SCC analyses: *Used field analysis yielded the following read fields: *Marker field analysis yielded the following relations that could be markers: ---------------------------------------- (7) SCCToIRSProof (SOUND) Transformed FIGraph SCCs to intTRSs. Log: Generated rules. Obtained 19 IRulesP rules: f542_0_main_ConstantStackPush(EOS(STATIC_542), i84, i85, i86, i84) -> f543_0_main_GT(EOS(STATIC_543), i84, i85, i86, i84, 100) :|: TRUE f543_0_main_GT(EOS(STATIC_543), i95, i85, i86, i95, matching1) -> f544_0_main_GT(EOS(STATIC_544), i95, i85, i86, i95, 100) :|: TRUE && matching1 = 100 f544_0_main_GT(EOS(STATIC_544), i95, i85, i86, i95, matching1) -> f549_0_main_Load(EOS(STATIC_549), i95, i85, i86) :|: i95 <= 100 && matching1 = 100 f549_0_main_Load(EOS(STATIC_549), i95, i85, i86) -> f553_0_main_Load(EOS(STATIC_553), i95, i85, i86, i85) :|: TRUE f553_0_main_Load(EOS(STATIC_553), i95, i85, i86, i85) -> f555_0_main_GT(EOS(STATIC_555), i95, i85, i86, i85, i86) :|: TRUE f555_0_main_GT(EOS(STATIC_555), i95, i85, i86, i85, i86) -> f557_0_main_GT(EOS(STATIC_557), i95, i85, i86, i85, i86) :|: i85 <= i86 f557_0_main_GT(EOS(STATIC_557), i95, i85, i86, i85, i86) -> f562_0_main_Load(EOS(STATIC_562), i95, i85, i86) :|: i85 <= i86 f562_0_main_Load(EOS(STATIC_562), i95, i85, i86) -> f563_0_main_Store(EOS(STATIC_563), i85, i86, i95) :|: TRUE f563_0_main_Store(EOS(STATIC_563), i85, i86, i95) -> f565_0_main_Load(EOS(STATIC_565), i85, i86) :|: TRUE f565_0_main_Load(EOS(STATIC_565), i85, i86) -> f568_0_main_Store(EOS(STATIC_568), i86, i85) :|: TRUE f568_0_main_Store(EOS(STATIC_568), i86, i85) -> f570_0_main_Load(EOS(STATIC_570), i85, i86) :|: TRUE f570_0_main_Load(EOS(STATIC_570), i85, i86) -> f573_0_main_ConstantStackPush(EOS(STATIC_573), i85, i86, i85) :|: TRUE f573_0_main_ConstantStackPush(EOS(STATIC_573), i85, i86, i85) -> f575_0_main_IntArithmetic(EOS(STATIC_575), i85, i86, i85, 1) :|: TRUE f575_0_main_IntArithmetic(EOS(STATIC_575), i85, i86, i85, matching1) -> f577_0_main_Store(EOS(STATIC_577), i85, i86, i85 + 1) :|: i85 >= 0 && matching1 = 1 f577_0_main_Store(EOS(STATIC_577), i85, i86, i97) -> f580_0_main_Inc(EOS(STATIC_580), i85, i97, i86) :|: TRUE f580_0_main_Inc(EOS(STATIC_580), i85, i97, i86) -> f582_0_main_JMP(EOS(STATIC_582), i85, i97, i86 + -1) :|: TRUE f582_0_main_JMP(EOS(STATIC_582), i85, i97, i100) -> f593_0_main_Load(EOS(STATIC_593), i85, i97, i100) :|: TRUE f593_0_main_Load(EOS(STATIC_593), i85, i97, i100) -> f541_0_main_Load(EOS(STATIC_541), i85, i97, i100) :|: TRUE f541_0_main_Load(EOS(STATIC_541), i84, i85, i86) -> f542_0_main_ConstantStackPush(EOS(STATIC_542), i84, i85, i86, i84) :|: TRUE Combined rules. Obtained 1 IRulesP rules: f542_0_main_ConstantStackPush(EOS(STATIC_542), i84:0, i85:0, i86:0, i84:0) -> f542_0_main_ConstantStackPush(EOS(STATIC_542), i85:0, i85:0 + 1, i86:0 - 1, i85:0) :|: i84:0 < 101 && i86:0 >= i85:0 && i85:0 > -1 Filtered constant ground arguments: f542_0_main_ConstantStackPush(x1, x2, x3, x4, x5) -> f542_0_main_ConstantStackPush(x2, x3, x4, x5) EOS(x1) -> EOS Filtered duplicate arguments: f542_0_main_ConstantStackPush(x1, x2, x3, x4) -> f542_0_main_ConstantStackPush(x2, x3, x4) Finished conversion. Obtained 1 rules.P rules: f542_0_main_ConstantStackPush(i85:0, i86:0, i84:0) -> f542_0_main_ConstantStackPush(i85:0 + 1, i86:0 - 1, i85:0) :|: i86:0 >= i85:0 && i85:0 > -1 && i84:0 < 101 ---------------------------------------- (8) Obligation: Rules: f542_0_main_ConstantStackPush(i85:0, i86:0, i84:0) -> f542_0_main_ConstantStackPush(i85:0 + 1, i86:0 - 1, i85:0) :|: i86:0 >= i85:0 && i85:0 > -1 && i84:0 < 101 ---------------------------------------- (9) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (10) Obligation: Rules: f542_0_main_ConstantStackPush(i85:0, i86:0, i84:0) -> f542_0_main_ConstantStackPush(arith, arith1, i85:0) :|: i86:0 >= i85:0 && i85:0 > -1 && i84:0 < 101 && arith = i85:0 + 1 && arith1 = i86:0 - 1 ---------------------------------------- (11) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f542_0_main_ConstantStackPush(i85:0, i86:0, i84:0) -> f542_0_main_ConstantStackPush(arith, arith1, i85:0) :|: i86:0 >= i85:0 && i85:0 > -1 && i84:0 < 101 && arith = i85:0 + 1 && arith1 = i86:0 - 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (12) Obligation: Termination digraph: Nodes: (1) f542_0_main_ConstantStackPush(i85:0, i86:0, i84:0) -> f542_0_main_ConstantStackPush(arith, arith1, i85:0) :|: i86:0 >= i85:0 && i85:0 > -1 && i84:0 < 101 && arith = i85:0 + 1 && arith1 = i86:0 - 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (13) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (14) Obligation: Rules: f542_0_main_ConstantStackPush(i85:0:0, i86:0:0, i84:0:0) -> f542_0_main_ConstantStackPush(i85:0:0 + 1, i86:0:0 - 1, i85:0:0) :|: i86:0:0 >= i85:0:0 && i85:0:0 > -1 && i84:0:0 < 101 ---------------------------------------- (15) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f542_0_main_ConstantStackPush(INTEGER, INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (16) Obligation: Rules: f542_0_main_ConstantStackPush(i85:0:0, i86:0:0, i84:0:0) -> f542_0_main_ConstantStackPush(c, c1, i85:0:0) :|: c1 = i86:0:0 - 1 && c = i85:0:0 + 1 && (i86:0:0 >= i85:0:0 && i85:0:0 > -1 && i84:0:0 < 101) ---------------------------------------- (17) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f542_0_main_ConstantStackPush(x, x1, x2)] = x1 The following rules are decreasing: f542_0_main_ConstantStackPush(i85:0:0, i86:0:0, i84:0:0) -> f542_0_main_ConstantStackPush(c, c1, i85:0:0) :|: c1 = i86:0:0 - 1 && c = i85:0:0 + 1 && (i86:0:0 >= i85:0:0 && i85:0:0 > -1 && i84:0:0 < 101) The following rules are bounded: f542_0_main_ConstantStackPush(i85:0:0, i86:0:0, i84:0:0) -> f542_0_main_ConstantStackPush(c, c1, i85:0:0) :|: c1 = i86:0:0 - 1 && c = i85:0:0 + 1 && (i86:0:0 >= i85:0:0 && i85:0:0 > -1 && i84:0:0 < 101) ---------------------------------------- (18) YES