java -Xss4m -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/chc/TreeAutomizer/TreeAutomizerHopcroftMinimization.epf -i /storage/chc-comp/vmt-chc-benchmarks/ctigar/nest-if.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-86166b8 [2018-06-23 17:40:49,775 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-23 17:40:49,777 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-23 17:40:49,791 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-06-23 17:40:49,805 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-23 17:40:49,806 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-23 17:40:49,807 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-23 17:40:49,810 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-23 17:40:49,811 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-23 17:40:49,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-23 17:40:49,821 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-23 17:40:49,823 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-23 17:40:49,828 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-23 17:40:49,829 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-23 17:40:49,831 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-23 17:40:49,838 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-23 17:40:49,839 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-23 17:40:49,840 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-23 17:40:49,840 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-23 17:40:49,841 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-23 17:40:49,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-23 17:40:49,845 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/TreeAutomizer/TreeAutomizerHopcroftMinimization.epf [2018-06-23 17:40:49,857 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-23 17:40:49,857 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-23 17:40:49,859 INFO L131 SettingsManager]: Preferences of TreeAutomizer differ from their defaults: [2018-06-23 17:40:49,859 INFO L133 SettingsManager]: * Type of minimization to use=HOPCROFT [2018-06-23 17:40:49,859 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-06-23 17:40:49,861 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-23 17:40:49,861 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-23 17:40:49,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-06-23 17:40:49,915 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-23 17:40:49,918 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-06-23 17:40:49,920 INFO L271 PluginConnector]: Initializing SmtParser... [2018-06-23 17:40:49,920 INFO L276 PluginConnector]: SmtParser initialized [2018-06-23 17:40:49,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/nest-if.c.smt2 [2018-06-23 17:40:49,923 INFO L200 SmtParser]: Parsing .smt2 file as a set of Horn Clauses [2018-06-23 17:40:50,017 INFO L224 SmtParser]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/nest-if.c.smt2 unknown [2018-06-23 17:40:50,276 INFO L238 SmtParser]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/nest-if.c.smt2 [2018-06-23 17:40:50,282 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-06-23 17:40:50,288 INFO L131 ToolchainWalker]: Walking toolchain with 1 elements. [2018-06-23 17:40:50,289 INFO L113 PluginConnector]: ------------------------TreeAutomizer---------------------------- [2018-06-23 17:40:50,289 INFO L271 PluginConnector]: Initializing TreeAutomizer... [2018-06-23 17:40:50,292 INFO L276 PluginConnector]: TreeAutomizer initialized [2018-06-23 17:40:50,293 INFO L185 PluginConnector]: Executing the observer TreeAutomizerObserver from plugin TreeAutomizer for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 23.06 05:40:50" (1/1) ... Received shutdown request... [2018-06-23 17:41:46,173 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer has thrown an exception: java.lang.UnsupportedOperationException: Auxiliary term must not be contained in any collection at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.SmtFreePredicateFactory$AuxiliaryTerm.hashCode(SmtFreePredicateFactory.java:126) at java.util.HashMap.hash(HashMap.java:338) at java.util.HashMap.containsKey(HashMap.java:595) at java.util.HashSet.contains(HashSet.java:203) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.recursiveAndOrSimplificationHelper(SmtUtils.java:1062) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.andWithExtendedLocalSimplification(SmtUtils.java:923) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.and(SmtUtils.java:890) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.HCStateFactory.implicationStatement(HCStateFactory.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.HCStateFactory.implies(HCStateFactory.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.HCStateFactory.constructBaseGraph(HCStateFactory.java:255) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.HCStateFactory.getImplicationGraph(HCStateFactory.java:265) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.HCStateFactory.filterUnconditonally(HCStateFactory.java:287) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.HCStateFactory.filter(HCStateFactory.java:300) at de.uni_freiburg.informatik.ultimate.automata.tree.operations.difference.LazyDifference.computeDifference(LazyDifference.java:193) at de.uni_freiburg.informatik.ultimate.automata.tree.operations.difference.LazyDifference.(LazyDifference.java:87) at de.uni_freiburg.informatik.ultimate.automata.tree.operations.difference.LazyDifference.(LazyDifference.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.TreeAutomizerCEGAR.refineAbstraction(TreeAutomizerCEGAR.java:351) 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) [2018-06-23 17:41:46,177 INFO L168 Benchmark]: Toolchain (without parser) took 55894.40 ms. Allocated memory was 309.3 MB in the beginning and 1.1 GB in the end (delta: 831.5 MB). Free memory was 264.7 MB in the beginning and 717.9 MB in the end (delta: -453.2 MB). Peak memory consumption was 925.0 MB. Max. memory is 3.6 GB. [2018-06-23 17:41:46,182 INFO L168 Benchmark]: SmtParser took 0.17 ms. Allocated memory is still 309.3 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-23 17:41:46,183 INFO L168 Benchmark]: TreeAutomizer took 55887.51 ms. Allocated memory was 309.3 MB in the beginning and 1.1 GB in the end (delta: 831.5 MB). Free memory was 264.7 MB in the beginning and 717.9 MB in the end (delta: -453.2 MB). Peak memory consumption was 925.0 MB. Max. memory is 3.6 GB. [2018-06-23 17:41:46,185 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.17 ms. Allocated memory is still 309.3 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * TreeAutomizer took 55887.51 ms. Allocated memory was 309.3 MB in the beginning and 1.1 GB in the end (delta: 831.5 MB). Free memory was 264.7 MB in the beginning and 717.9 MB in the end (delta: -453.2 MB). Peak memory consumption was 925.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Auxiliary term must not be contained in any collection de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer: UnsupportedOperationException: Auxiliary term must not be contained in any collection: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.SmtFreePredicateFactory$AuxiliaryTerm.hashCode(SmtFreePredicateFactory.java:126) 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/nest-if.c.smt2_TreeAutomizerHopcroftMinimization.epf_TreeAutomizer.xml/Csv-Benchmark-0-2018-06-23_17-41-46-196.csv Completed graceful shutdown