/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# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty termination of the given Bare JBC problem could be proven: (0) Bare JBC problem (1) BareJBCToJBCProof [EQUIVALENT, 96 ms] (2) JBC problem (3) JBCToGraph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, 375 ms] (4) JBCTerminationGraph (5) TerminationGraphToSCCProof [SOUND, 0 ms] (6) JBCTerminationSCC (7) SCCToIRSProof [SOUND, 105 ms] (8) IRSwT (9) IRSFormatTransformerProof [EQUIVALENT, 0 ms] (10) IRSwT (11) IRSwTTerminationDigraphProof [EQUIVALENT, 0 ms] (12) IRSwT (13) IntTRSCompressionProof [EQUIVALENT, 0 ms] (14) IRSwT (15) TempFilterProof [SOUND, 16 ms] (16) IntTRS (17) PolynomialOrderProcessor [EQUIVALENT, 0 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: f633_0_main_ConstantStackPush(EOS(STATIC_633), i19, i90, i19) -> f634_0_main_IntArithmetic(EOS(STATIC_634), i19, i90, i19, 1) :|: TRUE f634_0_main_IntArithmetic(EOS(STATIC_634), i19, i90, i19, matching1) -> f646_0_main_Load(EOS(STATIC_646), i19, i90, i19 - 1) :|: i19 >= 0 && matching1 = 1 f646_0_main_Load(EOS(STATIC_646), i19, i90, i97) -> f647_0_main_InvokeMethod(EOS(STATIC_647), i19, i90, i97, i90) :|: TRUE f647_0_main_InvokeMethod(EOS(STATIC_647), i19, i90, i97, i90) -> f648_0_min_Load(EOS(STATIC_648), i19, i90, i97, i90) :|: TRUE f648_0_min_Load(EOS(STATIC_648), i19, i90, i97, i90) -> f649_0_min_Load(EOS(STATIC_649), i19, i90, i97, i90, i97) :|: TRUE f649_0_min_Load(EOS(STATIC_649), i19, i90, i97, i90, i97) -> f650_0_min_GE(EOS(STATIC_650), i19, i90, i97, i90, i97, i90) :|: TRUE f650_0_min_GE(EOS(STATIC_650), i19, i90, i97, i90, i97, i90) -> f651_0_min_GE(EOS(STATIC_651), i19, i90, i97, i90, i97, i90) :|: i97 >= i90 f651_0_min_GE(EOS(STATIC_651), i19, i90, i97, i90, i97, i90) -> f653_0_min_Load(EOS(STATIC_653), i19, i90, i90) :|: i97 >= i90 f653_0_min_Load(EOS(STATIC_653), i19, i90, i90) -> f655_0_min_Return(EOS(STATIC_655), i19, i90, i90) :|: TRUE f655_0_min_Return(EOS(STATIC_655), i19, i90, i90) -> f657_0_main_Load(EOS(STATIC_657), i19, i90, i90) :|: TRUE f657_0_main_Load(EOS(STATIC_657), i19, i90, i90) -> f674_0_main_NE(EOS(STATIC_674), i19, i90, i90, i90) :|: TRUE f674_0_main_NE(EOS(STATIC_674), i19, i90, i90, i90) -> f698_0_main_Inc(EOS(STATIC_698), i19, i90) :|: TRUE f698_0_main_Inc(EOS(STATIC_698), i19, i90) -> f710_0_main_Inc(EOS(STATIC_710), i19, i90 + 1) :|: TRUE f710_0_main_Inc(EOS(STATIC_710), i19, i104) -> f713_0_main_JMP(EOS(STATIC_713), i19, i104) :|: TRUE f713_0_main_JMP(EOS(STATIC_713), i19, i104) -> f730_0_main_Load(EOS(STATIC_730), i19, i104) :|: TRUE f730_0_main_Load(EOS(STATIC_730), i19, i104) -> f632_0_main_Load(EOS(STATIC_632), i19, i104) :|: TRUE f632_0_main_Load(EOS(STATIC_632), i19, i90) -> f633_0_main_ConstantStackPush(EOS(STATIC_633), i19, i90, i19) :|: TRUE Combined rules. Obtained 1 IRulesP rules: f633_0_main_ConstantStackPush(EOS(STATIC_633), i19:0, i90:0, i19:0) -> f633_0_main_ConstantStackPush(EOS(STATIC_633), i19:0, i90:0 + 1, i19:0) :|: i19:0 > -1 && i90:0 <= i19:0 - 1 Filtered constant ground arguments: f633_0_main_ConstantStackPush(x1, x2, x3, x4) -> f633_0_main_ConstantStackPush(x2, x3, x4) EOS(x1) -> EOS Filtered duplicate arguments: f633_0_main_ConstantStackPush(x1, x2, x3) -> f633_0_main_ConstantStackPush(x2, x3) Finished conversion. Obtained 1 rules.P rules: f633_0_main_ConstantStackPush(i90:0, i19:0) -> f633_0_main_ConstantStackPush(i90:0 + 1, i19:0) :|: i19:0 > -1 && i90:0 <= i19:0 - 1 ---------------------------------------- (8) Obligation: Rules: f633_0_main_ConstantStackPush(i90:0, i19:0) -> f633_0_main_ConstantStackPush(i90:0 + 1, i19:0) :|: i19:0 > -1 && i90:0 <= i19:0 - 1 ---------------------------------------- (9) IRSFormatTransformerProof (EQUIVALENT) Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %). ---------------------------------------- (10) Obligation: Rules: f633_0_main_ConstantStackPush(i90:0, i19:0) -> f633_0_main_ConstantStackPush(arith, i19:0) :|: i19:0 > -1 && i90:0 <= i19:0 - 1 && arith = i90:0 + 1 ---------------------------------------- (11) IRSwTTerminationDigraphProof (EQUIVALENT) Constructed termination digraph! Nodes: (1) f633_0_main_ConstantStackPush(i90:0, i19:0) -> f633_0_main_ConstantStackPush(arith, i19:0) :|: i19:0 > -1 && i90:0 <= i19:0 - 1 && arith = i90:0 + 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (12) Obligation: Termination digraph: Nodes: (1) f633_0_main_ConstantStackPush(i90:0, i19:0) -> f633_0_main_ConstantStackPush(arith, i19:0) :|: i19:0 > -1 && i90:0 <= i19:0 - 1 && arith = i90:0 + 1 Arcs: (1) -> (1) This digraph is fully evaluated! ---------------------------------------- (13) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (14) Obligation: Rules: f633_0_main_ConstantStackPush(i90:0:0, i19:0:0) -> f633_0_main_ConstantStackPush(i90:0:0 + 1, i19:0:0) :|: i19:0:0 > -1 && i90:0:0 <= i19:0:0 - 1 ---------------------------------------- (15) TempFilterProof (SOUND) Used the following sort dictionary for filtering: f633_0_main_ConstantStackPush(INTEGER, INTEGER) Replaced non-predefined constructor symbols by 0. ---------------------------------------- (16) Obligation: Rules: f633_0_main_ConstantStackPush(i90:0:0, i19:0:0) -> f633_0_main_ConstantStackPush(c, i19:0:0) :|: c = i90:0:0 + 1 && (i19:0:0 > -1 && i90:0:0 <= i19:0:0 - 1) ---------------------------------------- (17) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f633_0_main_ConstantStackPush(x, x1)] = -x + x1 The following rules are decreasing: f633_0_main_ConstantStackPush(i90:0:0, i19:0:0) -> f633_0_main_ConstantStackPush(c, i19:0:0) :|: c = i90:0:0 + 1 && (i19:0:0 > -1 && i90:0:0 <= i19:0:0 - 1) The following rules are bounded: f633_0_main_ConstantStackPush(i90:0:0, i19:0:0) -> f633_0_main_ConstantStackPush(c, i19:0:0) :|: c = i90:0:0 + 1 && (i19:0:0 > -1 && i90:0:0 <= i19:0:0 - 1) ---------------------------------------- (18) YES