./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-properties/simple-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-properties/simple-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:05:45,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:05:45,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:05:45,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:05:45,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:05:45,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:05:45,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:05:45,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:05:45,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:05:45,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:05:45,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:05:45,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:05:45,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:05:45,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:05:45,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:05:45,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:05:45,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:05:45,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:05:45,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:05:45,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:05:45,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:05:45,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:05:45,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:05:45,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:05:45,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:05:45,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:05:45,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:05:45,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:05:45,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:05:45,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:05:45,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:05:45,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:05:45,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:05:45,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:05:45,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:05:45,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:05:45,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:05:45,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:05:45,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:05:45,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:05:45,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:05:45,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:05:45,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:05:45,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:05:45,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:05:45,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:05:45,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:05:45,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:05:45,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:05:45,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:05:45,918 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:05:45,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:05:45,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:05:45,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:05:45,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:05:45,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:05:45,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:05:45,920 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:05:45,920 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:05:45,920 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:05:45,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:05:45,920 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:05:45,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:05:45,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:05:45,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:05:45,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:05:45,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:05:45,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:05:45,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:05:45,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:05:45,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:05:45,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:05:45,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:05:45,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 [2021-12-15 14:05:46,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:05:46,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:05:46,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:05:46,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:05:46,155 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:05:46,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 14:05:46,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f582f9899/4d6dc234c7ec472d9fbb05718cbc3e1f/FLAG258b3f322 [2021-12-15 14:05:46,570 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:05:46,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 14:05:46,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f582f9899/4d6dc234c7ec472d9fbb05718cbc3e1f/FLAG258b3f322 [2021-12-15 14:05:46,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f582f9899/4d6dc234c7ec472d9fbb05718cbc3e1f [2021-12-15 14:05:46,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:05:46,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:05:46,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:05:46,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:05:46,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:05:46,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409369c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46, skipping insertion in model container [2021-12-15 14:05:46,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:05:46,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:05:46,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i[23225,23238] [2021-12-15 14:05:46,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:05:46,826 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:05:46,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i[23225,23238] [2021-12-15 14:05:46,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:05:46,894 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:05:46,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46 WrapperNode [2021-12-15 14:05:46,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:05:46,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:05:46,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:05:46,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:05:46,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,937 INFO L137 Inliner]: procedures = 124, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-12-15 14:05:46,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:05:46,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:05:46,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:05:46,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:05:46,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:05:46,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:05:46,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:05:46,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:05:46,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46" (1/1) ... [2021-12-15 14:05:46,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:05:46,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:05:46,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:05:47,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:05:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 14:05:47,021 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 14:05:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 14:05:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 14:05:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:05:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:05:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:05:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:05:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 14:05:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:05:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:05:47,080 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:05:47,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:05:47,099 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:05:47,103 INFO L158 Benchmark]: Toolchain (without parser) took 507.98ms. Allocated memory is still 98.6MB. Free memory was 61.4MB in the beginning and 57.3MB in the end (delta: 4.1MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2021-12-15 14:05:47,103 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 26.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:05:47,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.88ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 67.1MB in the end (delta: -6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 14:05:47,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.45ms. Allocated memory is still 98.6MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:05:47,105 INFO L158 Benchmark]: Boogie Preprocessor took 35.18ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 64.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:05:47,105 INFO L158 Benchmark]: RCFGBuilder took 128.16ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 57.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 14:05:47,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 26.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.88ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 67.1MB in the end (delta: -6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.45ms. Allocated memory is still 98.6MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.18ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 64.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 128.16ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 57.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:05:47,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-properties/simple-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:05:48,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:05:48,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:05:48,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:05:48,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:05:48,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:05:48,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:05:48,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:05:48,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:05:48,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:05:48,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:05:48,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:05:48,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:05:48,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:05:48,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:05:48,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:05:48,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:05:48,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:05:48,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:05:48,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:05:48,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:05:48,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:05:48,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:05:48,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:05:48,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:05:48,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:05:48,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:05:48,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:05:48,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:05:48,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:05:48,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:05:48,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:05:48,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:05:48,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:05:48,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:05:48,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:05:48,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:05:48,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:05:48,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:05:48,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:05:48,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:05:48,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:05:48,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:05:48,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:05:48,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:05:48,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:05:48,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:05:48,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:05:48,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:05:48,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:05:48,845 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:05:48,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:05:48,846 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:05:48,846 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:05:48,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:05:48,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:05:48,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:05:48,847 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:05:48,847 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:05:48,847 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:05:48,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:05:48,847 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:05:48,848 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:05:48,848 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:05:48,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:05:48,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:05:48,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:05:48,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:05:48,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:05:48,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:05:48,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:05:48,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:05:48,854 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:05:48,854 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:05:48,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:05:48,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:05:48,854 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 [2021-12-15 14:05:49,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:05:49,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:05:49,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:05:49,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:05:49,116 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:05:49,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 14:05:49,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2deb859/6b5d88d7a0dc446c98a77f388861fb0a/FLAG4350b081c [2021-12-15 14:05:49,498 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:05:49,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 14:05:49,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2deb859/6b5d88d7a0dc446c98a77f388861fb0a/FLAG4350b081c [2021-12-15 14:05:49,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2deb859/6b5d88d7a0dc446c98a77f388861fb0a [2021-12-15 14:05:49,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:05:49,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:05:49,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:05:49,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:05:49,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:05:49,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:05:49" (1/1) ... [2021-12-15 14:05:49,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bafec3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:49, skipping insertion in model container [2021-12-15 14:05:49,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:05:49" (1/1) ... [2021-12-15 14:05:49,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:05:49,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:05:50,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i[23225,23238] [2021-12-15 14:05:50,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:05:50,148 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:05:50,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i[23225,23238] [2021-12-15 14:05:50,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:05:50,234 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:05:50,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50 WrapperNode [2021-12-15 14:05:50,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:05:50,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:05:50,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:05:50,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:05:50,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,282 INFO L137 Inliner]: procedures = 127, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-12-15 14:05:50,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:05:50,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:05:50,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:05:50,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:05:50,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:05:50,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:05:50,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:05:50,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:05:50,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:50" (1/1) ... [2021-12-15 14:05:50,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:05:50,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:05:50,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:05:50,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:05:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 14:05:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 14:05:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:05:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:05:50,500 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:05:50,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:05:50,514 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:05:50,519 INFO L158 Benchmark]: Toolchain (without parser) took 617.98ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.4MB in the beginning and 51.5MB in the end (delta: -17.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-15 14:05:50,520 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:05:50,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.72ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.2MB in the beginning and 46.3MB in the end (delta: -12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 14:05:50,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.00ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 44.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:05:50,522 INFO L158 Benchmark]: Boogie Preprocessor took 33.21ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 42.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:05:50,522 INFO L158 Benchmark]: RCFGBuilder took 199.97ms. Allocated memory is still 69.2MB. Free memory was 42.6MB in the beginning and 51.5MB in the end (delta: -8.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-12-15 14:05:50,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.72ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.2MB in the beginning and 46.3MB in the end (delta: -12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.00ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 44.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.21ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 42.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 199.97ms. Allocated memory is still 69.2MB. Free memory was 42.6MB in the beginning and 51.5MB in the end (delta: -8.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:05:50,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable