/export/starexec/sandbox2/solver/bin/starexec_run_standard /export/starexec/sandbox2/benchmark/theBenchmark.jar /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES proof of /export/starexec/sandbox2/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# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty termination of the given Bare JBC problem could be proven: (0) Bare JBC problem (1) BareJBCToJBCProof [EQUIVALENT, 96 ms] (2) JBC problem (3) JBCToGraph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, 411 ms] (4) JBCTerminationGraph (5) TerminationGraphToSCCProof [SOUND, 0 ms] (6) JBCTerminationSCC (7) SCCToIRSProof [SOUND, 75 ms] (8) IRSwT (9) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (10) IRSwT (11) IRSwTTerminationDigraphProof [EQUIVALENT, 2 ms] (12) IRSwT (13) IntTRSCompressionProof [EQUIVALENT, 0 ms] (14) IRSwT (15) TempFilterProof [SOUND, 21 ms] (16) IntTRS (17) PolynomialOrderProcessor [EQUIVALENT, 5 ms] (18) YES ---------------------------------------- (0) Obligation: need to prove termination of the following program: public class MinusMin{ public static int min (int x, int y) { if (x < y) return x; else return y; } public static void main(String[] args) { Random.args = args; int x = Random.random(); int y = Random.random(); int res = 0; while (min(x-1,y) == y) { y++; res++; } } } 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: public class MinusMin{ public static int min (int x, int y) { if (x < y) return x; else return y; } public static void main(String[] args) { Random.args = args; int x = Random.random(); int y = Random.random(); int res = 0; while (min(x-1,y) == y) { y++; res++; } } } 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: MinusMin.main([Ljava/lang/String;)V: Graph of 194 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: MinusMin.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 17 IRulesP rules: f629_0_main_ConstantStackPush(EOS(STATIC_629), i19, i85, i19) -> f631_0_main_IntArithmetic(EOS(STATIC_631), i19, i85, i19, 1) :|: TRUE f631_0_main_IntArithmetic(EOS(STATIC_631), i19, i85, i19, matching1) -> f634_0_main_Load(EOS(STATIC_634), i19, i85, i19 - 1) :|: i19 >= 0 && matching1 = 1 f634_0_main_Load(EOS(STATIC_634), i19, i85, i92) -> f636_0_main_InvokeMethod(EOS(STATIC_636), i19, i85, i92, i85) :|: TRUE f636_0_main_InvokeMethod(EOS(STATIC_636), i19, i85, i92, i85) -> f637_0_min_Load(EOS(STATIC_637), i19, i85, i92, i85) :|: TRUE f637_0_min_Load(EOS(STATIC_637), i19, i85, i92, i85) -> f638_0_min_Load(EOS(STATIC_638), i19, i85, i92, i85, i92) :|: TRUE f638_0_min_Load(EOS(STATIC_638), i19, i85, i92, i85, i92) -> f639_0_min_GE(EOS(STATIC_639), i19, i85, i92, i85, i92, i85) :|: TRUE f639_0_min_GE(EOS(STATIC_639), i19, i85, i92, i85, i92, i85) -> f642_0_min_GE(EOS(STATIC_642), i19, i85, i92, i85, i92, i85) :|: i92 >= i85 f642_0_min_GE(EOS(STATIC_642), i19, i85, i92, i85, i92, i85) -> f648_0_min_Load(EOS(STATIC_648), i19, i85, i85) :|: i92 >= i85 f648_0_min_Load(EOS(STATIC_648), i19, i85, i85) -> f655_0_min_Return(EOS(STATIC_655), i19, i85, i85) :|: TRUE f655_0_min_Return(EOS(STATIC_655), i19, i85, i85) -> f657_0_main_Load(EOS(STATIC_657), i19, i85, i85) :|: TRUE f657_0_main_Load(EOS(STATIC_657), i19, i85, i85) -> f668_0_main_NE(EOS(STATIC_668), i19, i85, i85, i85) :|: TRUE f668_0_main_NE(EOS(STATIC_668), i19, i85, i85, i85) -> f700_0_main_Inc(EOS(STATIC_700), i19, i85) :|: TRUE f700_0_main_Inc(EOS(STATIC_700), i19, i85) -> f711_0_main_Inc(EOS(STATIC_711), i19, i85 + 1) :|: TRUE f711_0_main_Inc(EOS(STATIC_711), i19, i99) -> f726_0_main_JMP(EOS(STATIC_726), i19, i99) :|: TRUE f726_0_main_JMP(EOS(STATIC_726), i19, i99) -> f752_0_main_Load(EOS(STATIC_752), i19, i99) :|: TRUE f752_0_main_Load(EOS(STATIC_752), i19, i99) -> f624_0_main_Load(EOS(STATIC_624), i19, i99) :|: TRUE f624_0_main_Load(EOS(STATIC_624), i19, i85) -> f629_0_main_ConstantStackPush(EOS(STATIC_629), i19, i85, i19) :|: TRUE Combined rules. Obtained 1 IRulesP rules: f629_0_main_ConstantStackPush(EOS(STATIC_629), i19:0, i85:0, i19:0) -> f629_0_main_ConstantStackPush(EOS(STATIC_629), i19:0, i85:0 + 1, i19:0) :|: i19:0 > -1 && i85:0 <= i19:0 - 1 Filtered constant ground arguments: f629_0_main_ConstantStackPush(x1, x2, x3, x4) -> f629_0_main_ConstantStackPush(x2, x3, x4) EOS(x1) -> EOS Filtered duplicate arguments: f629_0_main_ConstantStackPush(x1, x2, x3) -> f629_0_main_ConstantStackPush(x2, x3) Finished conversion. Obtained 1 rules.P rules: f629_0_main_ConstantStackPush(i85:0, i19:0) -> f629_0_main_ConstantStackPush(i85:0 + 1, i19:0) :|: i19:0 > -1 && i85:0 <= i19:0 - 1 ---------------------------------------- (8) Obligation: Rules: f629_0_main_ConstantStackPush(i85:0, i19:0) -> f629_0_main_ConstantStackPush(i85:0 + 1, i19:0) :|: i19:0 > -1 && i85:0 <= i19:0 - 1 ---------------------------------------- (9) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (10) Obligation: Rules: f629_0_main_ConstantStackPush(i85:0, i19:0) -> f629_0_main_ConstantStackPush(arith, i19:0) :|: i19:0 > -1 && i85:0 <= i19:0 - 1 && arith = i85:0 + 1 ---------------------------------------- (11) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f629_0_main_ConstantStackPush(i85:0, i19:0) -> f629_0_main_ConstantStackPush(arith, i19:0) :|: i19:0 > -1 && i85:0 <= i19:0 - 1 && arith = i85:0 + 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (12) Obligation: Termination digraph: Nodes: (1) f629_0_main_ConstantStackPush(i85:0, i19:0) -> f629_0_main_ConstantStackPush(arith, i19:0) :|: i19:0 > -1 && i85:0 <= i19:0 - 1 && arith = i85:0 + 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (13) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (14) Obligation: Rules: f629_0_main_ConstantStackPush(i85:0:0, i19:0:0) -> f629_0_main_ConstantStackPush(i85:0:0 + 1, i19:0:0) :|: i19:0:0 > -1 && i85:0:0 <= i19:0:0 - 1 ---------------------------------------- (15) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f629_0_main_ConstantStackPush(INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (16) Obligation: Rules: f629_0_main_ConstantStackPush(i85:0:0, i19:0:0) -> f629_0_main_ConstantStackPush(c, i19:0:0) :|: c = i85:0:0 + 1 && (i19:0:0 > -1 && i85:0:0 <= i19:0:0 - 1) ---------------------------------------- (17) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f629_0_main_ConstantStackPush(x, x1)] = -x + x1 The following rules are decreasing: f629_0_main_ConstantStackPush(i85:0:0, i19:0:0) -> f629_0_main_ConstantStackPush(c, i19:0:0) :|: c = i85:0:0 + 1 && (i19:0:0 > -1 && i85:0:0 <= i19:0:0 - 1) The following rules are bounded: f629_0_main_ConstantStackPush(i85:0:0, i19:0:0) -> f629_0_main_ConstantStackPush(c, i19:0:0) :|: c = i85:0:0 + 1 && (i19:0:0 > -1 && i85:0:0 <= i19:0:0 - 1) ---------------------------------------- (18) YES