java -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-f5d4fca [2018-06-19 16:10:19,130 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-19 16:10:19,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-19 16:10:19,144 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-19 16:10:19,144 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-19 16:10:19,145 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-19 16:10:19,146 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-19 16:10:19,151 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-19 16:10:19,152 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-19 16:10:19,154 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-19 16:10:19,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-19 16:10:19,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-19 16:10:19,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-19 16:10:19,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-19 16:10:19,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-19 16:10:19,159 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-19 16:10:19,161 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-19 16:10:19,163 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-19 16:10:19,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-19 16:10:19,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-19 16:10:19,176 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-19 16:10:19,178 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-19 16:10:19,179 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-19 16:10:19,179 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-19 16:10:19,180 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-19 16:10:19,181 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-19 16:10:19,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-19 16:10:19,190 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-19 16:10:19,191 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-19 16:10:19,192 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-19 16:10:19,192 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-19 16:10:19,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-19 16:10:19,193 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-19 16:10:19,194 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-19 16:10:19,194 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-19 16:10:19,195 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-19 16:10:19,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-19 16:10:19,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-19 16:10:19,208 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-19 16:10:19,208 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-19 16:10:19,209 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-19 16:10:19,209 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-19 16:10:19,209 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-19 16:10:19,210 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-19 16:10:19,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-19 16:10:19,210 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-19 16:10:19,210 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-19 16:10:19,210 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-19 16:10:19,211 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-19 16:10:19,211 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-19 16:10:19,211 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-19 16:10:19,211 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-19 16:10:19,211 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-19 16:10:19,213 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-19 16:10:19,213 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-19 16:10:19,249 INFO ]: Repository-Root is: /tmp [2018-06-19 16:10:19,263 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-19 16:10:19,270 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-19 16:10:19,272 INFO ]: Initializing SmtParser... [2018-06-19 16:10:19,272 INFO ]: SmtParser initialized [2018-06-19 16:10:19,273 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 [2018-06-19 16:10:19,274 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-19 16:10:19,369 INFO ]: 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...