./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-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-ext3-properties/dll_circular_traversal-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 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:06:57,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:06:57,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:06:57,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:06:57,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:06:57,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:06:57,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:06:57,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:06:57,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:06:57,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:06:57,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:06:57,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:06:57,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:06:57,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:06:57,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:06:57,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:06:57,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:06:57,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:06:57,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:06:57,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:06:57,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:06:57,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:06:57,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:06:57,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:06:57,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:06:57,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:06:57,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:06:57,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:06:57,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:06:57,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:06:57,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:06:57,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:06:57,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:06:57,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:06:57,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:06:57,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:06:57,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:06:57,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:06:57,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:06:57,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:06:57,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:06:57,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:06:57,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:06:57,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:06:57,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:06:57,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:06:57,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:06:57,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:06:57,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:06:57,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:06:57,118 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:06:57,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:06:57,119 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:06:57,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:06:57,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:06:57,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:06:57,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:06:57,120 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:06:57,120 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:06:57,120 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:06:57,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:06:57,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:06:57,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:06:57,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:06:57,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:06:57,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:06:57,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:06:57,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:57,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:06:57,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:06:57,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:06:57,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:06:57,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:06:57,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 [2021-12-15 14:06:57,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:06:57,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:06:57,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:06:57,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:06:57,310 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:06:57,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2021-12-15 14:06:57,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a522c4d5/440f1d1dfd674858899e2ad921d3d8ed/FLAGc2deff7ef [2021-12-15 14:06:57,797 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:06:57,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2021-12-15 14:06:57,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a522c4d5/440f1d1dfd674858899e2ad921d3d8ed/FLAGc2deff7ef [2021-12-15 14:06:58,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a522c4d5/440f1d1dfd674858899e2ad921d3d8ed [2021-12-15 14:06:58,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:06:58,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:06:58,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:58,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:06:58,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:06:58,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238cd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58, skipping insertion in model container [2021-12-15 14:06:58,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:06:58,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:06:58,332 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-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2021-12-15 14:06:58,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:58,339 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:06:58,379 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-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2021-12-15 14:06:58,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:58,402 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:06:58,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58 WrapperNode [2021-12-15 14:06:58,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:58,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:58,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:06:58,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:06:58,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,452 INFO L137 Inliner]: procedures = 122, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2021-12-15 14:06:58,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:58,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:06:58,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:06:58,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:06:58,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:06:58,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:06:58,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:06:58,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:06:58,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:58" (1/1) ... [2021-12-15 14:06:58,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:58,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:06:58,545 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 14:06:58,564 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 14:06:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 14:06:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 14:06:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 14:06:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 14:06:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:06:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:06:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:06:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:06:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:06:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 14:06:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:06:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:06:58,653 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:06:58,654 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:06:58,659 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:06:58,667 INFO L158 Benchmark]: Toolchain (without parser) took 548.23ms. Allocated memory was 134.2MB in the beginning and 190.8MB in the end (delta: 56.6MB). Free memory was 110.3MB in the beginning and 145.8MB in the end (delta: -35.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-12-15 14:06:58,667 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:06:58,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.57ms. Allocated memory was 134.2MB in the beginning and 190.8MB in the end (delta: 56.6MB). Free memory was 109.7MB in the beginning and 157.3MB in the end (delta: -47.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:06:58,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.36ms. Allocated memory is still 190.8MB. Free memory was 157.3MB in the beginning and 155.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:06:58,669 INFO L158 Benchmark]: Boogie Preprocessor took 47.36ms. Allocated memory is still 190.8MB. Free memory was 155.2MB in the beginning and 154.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:06:58,669 INFO L158 Benchmark]: RCFGBuilder took 164.92ms. Allocated memory is still 190.8MB. Free memory was 154.2MB in the beginning and 145.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:06:58,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.57ms. Allocated memory was 134.2MB in the beginning and 190.8MB in the end (delta: 56.6MB). Free memory was 109.7MB in the beginning and 157.3MB in the end (delta: -47.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.36ms. Allocated memory is still 190.8MB. Free memory was 157.3MB in the beginning and 155.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.36ms. Allocated memory is still 190.8MB. Free memory was 155.2MB in the beginning and 154.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 164.92ms. Allocated memory is still 190.8MB. Free memory was 154.2MB in the beginning and 145.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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 14:06:58,710 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-ext3-properties/dll_circular_traversal-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 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:07:00,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:07:00,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:07:00,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:07:00,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:07:00,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:07:00,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:07:00,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:07:00,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:07:00,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:07:00,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:07:00,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:07:00,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:07:00,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:07:00,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:07:00,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:07:00,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:07:00,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:07:00,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:07:00,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:07:00,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:07:00,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:07:00,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:07:00,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:07:00,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:07:00,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:07:00,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:07:00,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:07:00,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:07:00,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:07:00,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:07:00,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:07:00,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:07:00,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:07:00,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:07:00,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:07:00,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:07:00,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:07:00,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:07:00,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:07:00,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:07:00,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:07:00,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:07:00,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:07:00,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:07:00,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:07:00,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:07:00,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:07:00,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:07:00,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:07:00,462 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:07:00,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:07:00,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:07:00,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:07:00,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:07:00,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:07:00,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:07:00,464 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:07:00,464 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:07:00,464 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:07:00,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:07:00,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:07:00,464 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:07:00,464 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:07:00,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:07:00,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:07:00,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:07:00,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:07:00,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:07:00,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:00,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:07:00,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:07:00,466 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:07:00,466 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:07:00,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:07:00,466 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:07:00,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 [2021-12-15 14:07:00,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:07:00,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:07:00,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:07:00,903 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:07:00,904 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:07:00,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2021-12-15 14:07:00,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b4b0604/7e62b250278c4f1cb80c7fd6f00a042a/FLAG9d99f439b [2021-12-15 14:07:01,324 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:07:01,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2021-12-15 14:07:01,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b4b0604/7e62b250278c4f1cb80c7fd6f00a042a/FLAG9d99f439b [2021-12-15 14:07:01,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b4b0604/7e62b250278c4f1cb80c7fd6f00a042a [2021-12-15 14:07:01,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:07:01,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:07:01,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:01,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:07:01,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:07:01,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:01" (1/1) ... [2021-12-15 14:07:01,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c20fd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:01, skipping insertion in model container [2021-12-15 14:07:01,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:01" (1/1) ... [2021-12-15 14:07:01,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:07:01,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:07:02,062 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-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2021-12-15 14:07:02,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:02,077 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:07:02,110 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-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2021-12-15 14:07:02,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:02,129 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:07:02,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02 WrapperNode [2021-12-15 14:07:02,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:02,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:02,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:07:02,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:07:02,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,177 INFO L137 Inliner]: procedures = 125, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2021-12-15 14:07:02,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:02,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:07:02,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:07:02,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:07:02,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:07:02,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:07:02,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:07:02,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:07:02,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:02" (1/1) ... [2021-12-15 14:07:02,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:02,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:07:02,264 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 14:07:02,283 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 14:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 14:07:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 14:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 14:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:07:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:07:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 14:07:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 14:07:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:07:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:07:02,366 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:07:02,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:07:02,372 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:07:02,376 INFO L158 Benchmark]: Toolchain (without parser) took 669.61ms. Allocated memory is still 69.2MB. Free memory was 51.3MB in the beginning and 34.2MB in the end (delta: 17.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-12-15 14:07:02,376 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 69.2MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:07:02,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.55ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 45.3MB in the end (delta: 5.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 14:07:02,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.21ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 43.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:07:02,378 INFO L158 Benchmark]: Boogie Preprocessor took 42.46ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 41.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:07:02,378 INFO L158 Benchmark]: RCFGBuilder took 151.73ms. Allocated memory is still 69.2MB. Free memory was 41.3MB in the beginning and 34.5MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:07:02,381 INFO L339 ainManager$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 69.2MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.55ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 45.3MB in the end (delta: 5.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.21ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 43.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.46ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 41.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 151.73ms. Allocated memory is still 69.2MB. Free memory was 41.3MB in the beginning and 34.5MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. 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 14:07:02,408 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