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-comp18-benchmarks/lia/chc-lia-0359.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-f5d4fca [2018-06-19 15:59:47,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-19 15:59:47,395 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-19 15:59:47,409 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-19 15:59:47,409 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-19 15:59:47,413 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-19 15:59:47,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-19 15:59:47,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-19 15:59:47,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-19 15:59:47,421 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-19 15:59:47,422 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-19 15:59:47,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-19 15:59:47,423 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-19 15:59:47,424 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-19 15:59:47,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-19 15:59:47,429 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-19 15:59:47,431 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-19 15:59:47,444 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-19 15:59:47,445 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-19 15:59:47,446 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-19 15:59:47,447 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-19 15:59:47,450 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-19 15:59:47,450 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-19 15:59:47,450 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-19 15:59:47,455 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-19 15:59:47,456 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-19 15:59:47,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-19 15:59:47,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-19 15:59:47,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-19 15:59:47,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-19 15:59:47,460 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-19 15:59:47,461 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-19 15:59:47,461 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-19 15:59:47,467 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-19 15:59:47,468 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-19 15:59:47,468 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/TreeAutomizer/TreeAutomizerHopcroftMinimization.epf [2018-06-19 15:59:47,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-19 15:59:47,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-19 15:59:47,483 INFO L131 SettingsManager]: Preferences of TreeAutomizer differ from their defaults: [2018-06-19 15:59:47,483 INFO L133 SettingsManager]: * Type of minimization to use=HOPCROFT [2018-06-19 15:59:47,484 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-06-19 15:59:47,484 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-19 15:59:47,485 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-19 15:59:47,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-06-19 15:59:47,564 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-19 15:59:47,568 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-06-19 15:59:47,570 INFO L271 PluginConnector]: Initializing SmtParser... [2018-06-19 15:59:47,570 INFO L276 PluginConnector]: SmtParser initialized [2018-06-19 15:59:47,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/chc-comp18-benchmarks/lia/chc-lia-0359.smt2 [2018-06-19 15:59:47,572 INFO L200 SmtParser]: Parsing .smt2 file as a set of Horn Clauses [2018-06-19 15:59:47,666 INFO L224 SmtParser]: Executing SMT file /storage/chc-comp18-benchmarks/lia/chc-lia-0359.smt2 The toolchain threw an exception: class java.lang.AssertionError: null RESULT: An exception occured during the execution of Ultimate: The toolchain threw an exception java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.SkolemNormalForm.skolemize(SkolemNormalForm.java:94) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.SkolemNormalForm.(SkolemNormalForm.java:44) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript.normalizeInputFormula(HornClauseParserScript.java:355) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript.assertTerm(HornClauseParserScript.java:307) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.Parser$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...