./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-simple/dll2c_update_all.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-simple/dll2c_update_all.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 6bfeee33a1b1d098a34bec7a761d4de16bc595043f21d77f5851cba758b79f34 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:06:29,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:06:29,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:06:29,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:06:29,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:06:29,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:06:29,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:06:29,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:06:29,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:06:29,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:06:29,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:06:29,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:06:29,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:06:29,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:06:29,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:06:29,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:06:29,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:06:29,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:06:29,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:06:29,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:06:29,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:06:29,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:06:29,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:06:29,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:06:29,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:06:29,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:06:29,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:06:29,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:06:29,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:06:29,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:06:29,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:06:29,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:06:29,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:06:29,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:06:29,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:06:29,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:06:29,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:06:29,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:06:29,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:06:29,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:06:29,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:06:29,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:06:29,699 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:06:29,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:06:29,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:06:29,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:06:29,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:06:29,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:06:29,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:06:29,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:06:29,702 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:06:29,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:06:29,703 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:06:29,703 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:06:29,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:06:29,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:06:29,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:06:29,704 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:06:29,704 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:06:29,704 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:06:29,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:06:29,705 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:06:29,705 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:06:29,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:06:29,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:06:29,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:06:29,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:06:29,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:29,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:06:29,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:06:29,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:06:29,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:06:29,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:06:29,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bfeee33a1b1d098a34bec7a761d4de16bc595043f21d77f5851cba758b79f34 [2021-12-15 14:06:29,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:06:29,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:06:29,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:06:29,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:06:29,934 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:06:29,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_update_all.i [2021-12-15 14:06:29,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22fed7d00/4d1310c78188430b91c1bc822d741f1c/FLAG625097a0c [2021-12-15 14:06:30,403 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:06:30,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_update_all.i [2021-12-15 14:06:30,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22fed7d00/4d1310c78188430b91c1bc822d741f1c/FLAG625097a0c [2021-12-15 14:06:30,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22fed7d00/4d1310c78188430b91c1bc822d741f1c [2021-12-15 14:06:30,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:06:30,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:06:30,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:30,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:06:30,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:06:30,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392f0008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30, skipping insertion in model container [2021-12-15 14:06:30,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:06:30,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:06:30,734 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-simple/dll2c_update_all.i[24538,24551] [2021-12-15 14:06:30,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:30,741 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:06:30,777 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-simple/dll2c_update_all.i[24538,24551] [2021-12-15 14:06:30,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:30,798 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:06:30,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30 WrapperNode [2021-12-15 14:06:30,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:30,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:30,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:06:30,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:06:30,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,862 INFO L137 Inliner]: procedures = 126, calls = 29, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 137 [2021-12-15 14:06:30,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:30,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:06:30,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:06:30,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:06:30,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:06:30,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:06:30,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:06:30,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:06:30,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:30" (1/1) ... [2021-12-15 14:06:30,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:30,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:06:30,951 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 14:06:30,973 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 14:06:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 14:06:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 14:06:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 14:06:30,987 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 14:06:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:06:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:06:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:06:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:06:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:06:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 14:06:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:06:30,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:06:31,099 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:06:31,100 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:06:31,289 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:06:31,293 INFO L158 Benchmark]: Toolchain (without parser) took 859.87ms. Allocated memory is still 88.1MB. Free memory was 53.1MB in the beginning and 37.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-12-15 14:06:31,294 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 59.0MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:06:31,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.49ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 56.8MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:06:31,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.38ms. Allocated memory is still 88.1MB. Free memory was 56.8MB in the beginning and 54.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:06:31,295 INFO L158 Benchmark]: Boogie Preprocessor took 38.55ms. Allocated memory is still 88.1MB. Free memory was 54.7MB in the beginning and 53.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:06:31,296 INFO L158 Benchmark]: RCFGBuilder took 388.81ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 38.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 14:06:31,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 59.0MB in the beginning and 59.0MB in the end (delta: 26.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.49ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 56.8MB in the end (delta: -3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.38ms. Allocated memory is still 88.1MB. Free memory was 56.8MB in the beginning and 54.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.55ms. Allocated memory is still 88.1MB. Free memory was 54.7MB in the beginning and 53.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.81ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 38.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. 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 14:06:31,330 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-simple/dll2c_update_all.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 6bfeee33a1b1d098a34bec7a761d4de16bc595043f21d77f5851cba758b79f34 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:06:33,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:06:33,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:06:33,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:06:33,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:06:33,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:06:33,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:06:33,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:06:33,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:06:33,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:06:33,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:06:33,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:06:33,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:06:33,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:06:33,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:06:33,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:06:33,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:06:33,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:06:33,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:06:33,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:06:33,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:06:33,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:06:33,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:06:33,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:06:33,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:06:33,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:06:33,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:06:33,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:06:33,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:06:33,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:06:33,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:06:33,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:06:33,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:06:33,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:06:33,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:06:33,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:06:33,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:06:33,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:06:33,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:06:33,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:06:33,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:06:33,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:06:33,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:06:33,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:06:33,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:06:33,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:06:33,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:06:33,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:06:33,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:06:33,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:06:33,342 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:06:33,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:06:33,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:06:33,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:06:33,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:06:33,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:06:33,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:06:33,344 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:06:33,344 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:06:33,345 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:06:33,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:06:33,345 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:06:33,345 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:06:33,345 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:06:33,346 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:06:33,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:06:33,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:06:33,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:06:33,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:06:33,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:33,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:06:33,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:06:33,347 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:06:33,348 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:06:33,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:06:33,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:06:33,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bfeee33a1b1d098a34bec7a761d4de16bc595043f21d77f5851cba758b79f34 [2021-12-15 14:06:33,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:06:33,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:06:33,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:06:33,655 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:06:33,655 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:06:33,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_update_all.i [2021-12-15 14:06:33,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2b7ff0d/eacab23661264c8aaf4df7ba342eb050/FLAGf905e1755 [2021-12-15 14:06:34,177 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:06:34,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_update_all.i [2021-12-15 14:06:34,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2b7ff0d/eacab23661264c8aaf4df7ba342eb050/FLAGf905e1755 [2021-12-15 14:06:34,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2b7ff0d/eacab23661264c8aaf4df7ba342eb050 [2021-12-15 14:06:34,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:06:34,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:06:34,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:34,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:06:34,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:06:34,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:34,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336508c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34, skipping insertion in model container [2021-12-15 14:06:34,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:34,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:06:34,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:06:34,849 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-simple/dll2c_update_all.i[24538,24551] [2021-12-15 14:06:34,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:34,863 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:06:34,919 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-simple/dll2c_update_all.i[24538,24551] [2021-12-15 14:06:34,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:34,953 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:06:34,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34 WrapperNode [2021-12-15 14:06:34,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:34,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:34,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:06:34,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:06:34,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:34,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,022 INFO L137 Inliner]: procedures = 129, calls = 29, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 137 [2021-12-15 14:06:35,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:35,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:06:35,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:06:35,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:06:35,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:06:35,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:06:35,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:06:35,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:06:35,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:34" (1/1) ... [2021-12-15 14:06:35,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:35,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:06:35,108 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 14:06:35,138 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 14:06:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 14:06:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 14:06:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 14:06:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:06:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:06:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:06:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:06:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:06:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 14:06:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 14:06:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:06:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:06:35,308 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:06:35,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:06:35,641 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:06:35,645 INFO L158 Benchmark]: Toolchain (without parser) took 1130.66ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.1MB in the beginning and 38.8MB in the end (delta: -8.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2021-12-15 14:06:35,646 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.4MB in the beginning and 34.4MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:06:35,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.49ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.0MB in the beginning and 42.6MB in the end (delta: -12.6MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-12-15 14:06:35,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.25ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 40.2MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 14:06:35,649 INFO L158 Benchmark]: Boogie Preprocessor took 43.67ms. Allocated memory is still 67.1MB. Free memory was 40.2MB in the beginning and 38.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:06:35,650 INFO L158 Benchmark]: RCFGBuilder took 576.42ms. Allocated memory is still 67.1MB. Free memory was 38.1MB in the beginning and 38.8MB in the end (delta: -632.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:06:35,652 INFO L339 ainManager$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 52.4MB. Free memory was 34.4MB in the beginning and 34.4MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.49ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.0MB in the beginning and 42.6MB in the end (delta: -12.6MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.25ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 40.2MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.67ms. Allocated memory is still 67.1MB. Free memory was 40.2MB in the beginning and 38.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 576.42ms. Allocated memory is still 67.1MB. Free memory was 38.1MB in the beginning and 38.8MB in the end (delta: -632.4kB). 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 14:06:35,694 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