java -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/TreeAutomizer.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/TreeAutomizer/TreeAutomizerHopcroftMinimization.epf -i /storage/chc-comp/llreve-bench/smt2/arrays/coreutils__remove.array.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 17:31:22,637 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 17:31:22,639 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 17:31:22,651 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-06-18 17:31:22,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 17:31:22,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 17:31:22,661 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 17:31:22,662 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 17:31:22,662 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 17:31:22,664 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 17:31:22,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 17:31:22,668 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 17:31:22,669 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 17:31:22,670 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 17:31:22,673 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-18 17:31:22,678 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 17:31:22,679 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 17:31:22,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 17:31:22,680 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 17:31:22,681 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 17:31:22,681 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 17:31:22,682 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/TreeAutomizer/TreeAutomizerHopcroftMinimization.epf [2018-06-18 17:31:22,689 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 17:31:22,690 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 17:31:22,692 INFO L131 SettingsManager]: Preferences of TreeAutomizer differ from their defaults: [2018-06-18 17:31:22,692 INFO L133 SettingsManager]: * Type of minimization to use=HOPCROFT [2018-06-18 17:31:22,692 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-06-18 17:31:22,693 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 17:31:22,694 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 17:31:22,737 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-06-18 17:31:22,752 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 17:31:22,756 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-06-18 17:31:22,757 INFO L271 PluginConnector]: Initializing SmtParser... [2018-06-18 17:31:22,758 INFO L276 PluginConnector]: SmtParser initialized [2018-06-18 17:31:22,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/arrays/coreutils__remove.array.smt2 [2018-06-18 17:31:22,760 INFO L200 SmtParser]: Parsing .smt2 file as a set of Horn Clauses [2018-06-18 17:31:22,845 INFO L224 SmtParser]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/arrays/coreutils__remove.array.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@f58be89 [2018-06-18 17:31:23,241 INFO L238 SmtParser]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/arrays/coreutils__remove.array.smt2 [2018-06-18 17:31:23,248 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-06-18 17:31:23,254 INFO L131 ToolchainWalker]: Walking toolchain with 1 elements. [2018-06-18 17:31:23,254 INFO L113 PluginConnector]: ------------------------TreeAutomizer---------------------------- [2018-06-18 17:31:23,254 INFO L271 PluginConnector]: Initializing TreeAutomizer... [2018-06-18 17:31:23,257 INFO L276 PluginConnector]: TreeAutomizer initialized [2018-06-18 17:31:23,258 INFO L185 PluginConnector]: Executing the observer TreeAutomizerObserver from plugin TreeAutomizer for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 05:31:23" (1/1) ... [2018-06-18 17:31:23,337 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 17:31:23,587 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer has thrown an exception: java.util.NoSuchElementException at java.util.HashMap$HashIterator.nextNode(HashMap.java:1439) at java.util.HashMap$KeyIterator.next(HashMap.java:1461) at de.uni_freiburg.informatik.ultimate.util.datastructures.UnionFind.addEquivalenceClass(UnionFind.java:172) at de.uni_freiburg.informatik.ultimate.util.datastructures.UnionFind.addEquivalenceClass(UnionFind.java:138) at de.uni_freiburg.informatik.ultimate.automata.tree.operations.minimization.hopcroft.MinimizeNftaHopcroft.initPartition(MinimizeNftaHopcroft.java:510) at de.uni_freiburg.informatik.ultimate.automata.tree.operations.minimization.hopcroft.MinimizeNftaHopcroft.doOperation(MinimizeNftaHopcroft.java:397) at de.uni_freiburg.informatik.ultimate.automata.tree.operations.minimization.hopcroft.MinimizeNftaHopcroft.(MinimizeNftaHopcroft.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.TreeAutomizerCEGAR.refineAbstraction(TreeAutomizerCEGAR.java:383) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.TreeAutomizerCEGAR.iterate(TreeAutomizerCEGAR.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.TreeAutomizerObserver.process(TreeAutomizerObserver.java:97) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-06-18 17:31:23,591 INFO L168 Benchmark]: Toolchain (without parser) took 342.90 ms. Allocated memory is still 306.7 MB. Free memory was 257.1 MB in the beginning and 247.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-18 17:31:23,595 INFO L168 Benchmark]: SmtParser took 0.20 ms. Allocated memory is still 306.7 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 17:31:23,596 INFO L168 Benchmark]: TreeAutomizer took 336.31 ms. Allocated memory is still 306.7 MB. Free memory was 257.1 MB in the beginning and 247.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-18 17:31:23,598 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.20 ms. Allocated memory is still 306.7 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * TreeAutomizer took 336.31 ms. Allocated memory is still 306.7 MB. Free memory was 257.1 MB in the beginning and 247.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer: - ExceptionOrErrorResult: NoSuchElementException: null de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer: NoSuchElementException: null: java.util.HashMap$HashIterator.nextNode(HashMap.java:1439) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/coreutils__remove.array.smt2_TreeAutomizerHopcroftMinimization.epf_TreeAutomizer.xml/Csv-Benchmark-0-2018-06-18_17-31-23-610.csv Received shutdown request...