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/TreeAutomizerNaiveMinimization.epf -i /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-f5d4fca [2018-06-19 16:04:55,940 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-19 16:04:55,943 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-19 16:04:55,957 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-19 16:04:55,958 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-19 16:04:55,959 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-19 16:04:55,963 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-19 16:04:55,966 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-19 16:04:55,967 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-19 16:04:55,969 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-19 16:04:55,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-19 16:04:55,970 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-19 16:04:55,971 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-19 16:04:55,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-19 16:04:55,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-19 16:04:55,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-19 16:04:55,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-19 16:04:55,992 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-19 16:04:55,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-19 16:04:55,994 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-19 16:04:55,995 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-19 16:04:55,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-19 16:04:55,998 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-19 16:04:55,998 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-19 16:04:55,999 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-19 16:04:56,004 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-19 16:04:56,005 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-19 16:04:56,006 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-19 16:04:56,008 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-19 16:04:56,008 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-19 16:04:56,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-19 16:04:56,010 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-19 16:04:56,010 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-19 16:04:56,016 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-19 16:04:56,017 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-19 16:04:56,018 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/TreeAutomizer/TreeAutomizerNaiveMinimization.epf [2018-06-19 16:04:56,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-19 16:04:56,031 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-19 16:04:56,036 INFO L131 SettingsManager]: Preferences of TreeAutomizer differ from their defaults: [2018-06-19 16:04:56,036 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-06-19 16:04:56,037 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-19 16:04:56,037 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-19 16:04:56,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-06-19 16:04:56,103 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-19 16:04:56,106 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-06-19 16:04:56,108 INFO L271 PluginConnector]: Initializing SmtParser... [2018-06-19 16:04:56,108 INFO L276 PluginConnector]: SmtParser initialized [2018-06-19 16:04:56,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 [2018-06-19 16:04:56,111 INFO L200 SmtParser]: Parsing .smt2 file as a set of Horn Clauses [2018-06-19 16:04:56,204 INFO L224 SmtParser]: Executing SMT file /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 The toolchain threw an exception: class java.lang.AssertionError: null RESULT: An exception occured during the execution of Ultimate: The toolchain threw an exception java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.SkolemNormalForm.skolemize(SkolemNormalForm.java:94) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.SkolemNormalForm.(SkolemNormalForm.java:44) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript.normalizeInputFormula(HornClauseParserScript.java:355) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript.assertTerm(HornClauseParserScript.java:307) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.Parser$Action$.CUP$do_action(Parser.java:2264) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.Parser.do_action(Parser.java:1146) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.ParseEnvironment.parseStream(ParseEnvironment.java:147) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.ParseEnvironment.parseScript(ParseEnvironment.java:125) at de.uni_freiburg.informatik.ultimate.source.smtparser.SmtParser.processFile(SmtParser.java:237) at de.uni_freiburg.informatik.ultimate.source.smtparser.SmtParser.parseAST(SmtParser.java:125) at de.uni_freiburg.informatik.ultimate.source.smtparser.SmtParser.parseAST(SmtParser.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.runParser(ToolchainManager.java:439) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.runParsers(ToolchainManager.java:290) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:218) 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) Received shutdown request...