./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-properties/list-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:54:23,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:54:23,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:54:23,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:54:23,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:54:23,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:54:23,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:54:23,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:54:23,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:54:23,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:54:23,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:54:23,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:54:23,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:54:23,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:54:23,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:54:23,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:54:23,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:54:23,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:54:23,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:54:23,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:54:23,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:54:23,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:54:23,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:54:23,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:54:23,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:54:23,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:54:23,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:54:23,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:54:23,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:54:23,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:54:23,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:54:23,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:54:23,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:54:23,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:54:23,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:54:23,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:54:23,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:54:23,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:54:23,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:54:23,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:54:23,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:54:23,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-12-15 13:54:23,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:54:23,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:54:23,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:54:23,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:54:23,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:54:23,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:54:23,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:54:23,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:54:23,910 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:54:23,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:54:23,910 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 13:54:23,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 13:54:23,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:54:23,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 13:54:23,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:54:23,911 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 13:54:23,911 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 13:54:23,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:54:23,912 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:54:23,912 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 13:54:23,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:54:23,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:54:23,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:54:23,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:54:23,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:54:23,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:54:23,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:54:23,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:54:23,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:54:23,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:54:23,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 [2021-12-15 13:54:24,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:54:24,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:54:24,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:54:24,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:54:24,129 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:54:24,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list-2.i [2021-12-15 13:54:24,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830cdaf9f/c0a588d6552341a987b2b80297587e43/FLAG8e81e0307 [2021-12-15 13:54:24,589 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:54:24,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i [2021-12-15 13:54:24,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830cdaf9f/c0a588d6552341a987b2b80297587e43/FLAG8e81e0307 [2021-12-15 13:54:24,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830cdaf9f/c0a588d6552341a987b2b80297587e43 [2021-12-15 13:54:24,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:54:24,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:54:24,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:24,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:54:24,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:54:24,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:24" (1/1) ... [2021-12-15 13:54:24,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5665d07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:24, skipping insertion in model container [2021-12-15 13:54:24,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:24" (1/1) ... [2021-12-15 13:54:24,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:54:25,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:54:25,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2021-12-15 13:54:25,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:25,244 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:54:25,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2021-12-15 13:54:25,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:25,314 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:54:25,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25 WrapperNode [2021-12-15 13:54:25,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:25,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:54:25,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:54:25,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:54:25,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,365 INFO L137 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2021-12-15 13:54:25,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:54:25,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:54:25,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:54:25,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:54:25,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:54:25,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:54:25,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:54:25,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:54:25,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:25" (1/1) ... [2021-12-15 13:54:25,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:54:25,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:54:25,445 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 13:54:25,462 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 13:54:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 13:54:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 13:54:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 13:54:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 13:54:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:54:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:54:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:54:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:54:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 13:54:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:54:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:54:25,586 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:54:25,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:54:25,599 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:54:25,605 INFO L158 Benchmark]: Toolchain (without parser) took 636.64ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 52.7MB in the beginning and 79.6MB in the end (delta: -26.8MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-12-15 13:54:25,606 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:54:25,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.03ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 52.5MB in the beginning and 90.1MB in the end (delta: -37.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 13:54:25,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.96ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 88.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:54:25,607 INFO L158 Benchmark]: Boogie Preprocessor took 42.06ms. Allocated memory is still 121.6MB. Free memory was 88.7MB in the beginning and 87.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 13:54:25,616 INFO L158 Benchmark]: RCFGBuilder took 194.49ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 79.6MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 13:54:25,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.03ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 52.5MB in the beginning and 90.1MB in the end (delta: -37.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.96ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 88.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.06ms. Allocated memory is still 121.6MB. Free memory was 88.7MB in the beginning and 87.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 194.49ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 79.6MB in the end (delta: 7.6MB). 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 13:54:25,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-properties/list-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:54:27,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:54:27,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:54:27,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:54:27,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:54:27,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:54:27,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:54:27,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:54:27,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:54:27,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:54:27,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:54:27,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:54:27,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:54:27,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:54:27,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:54:27,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:54:27,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:54:27,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:54:27,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:54:27,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:54:27,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:54:27,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:54:27,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:54:27,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:54:27,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:54:27,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:54:27,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:54:27,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:54:27,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:54:27,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:54:27,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:54:27,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:54:27,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:54:27,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:54:27,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:54:27,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:54:27,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:54:27,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:54:27,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:54:27,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:54:27,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:54:27,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2021-12-15 13:54:27,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:54:27,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:54:27,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:54:27,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:54:27,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:54:27,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:54:27,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:54:27,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:54:27,421 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:54:27,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:54:27,422 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 13:54:27,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 13:54:27,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:54:27,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 13:54:27,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 13:54:27,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:54:27,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:54:27,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:54:27,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:54:27,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:54:27,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:54:27,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:54:27,424 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:54:27,425 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:54:27,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:54:27,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:54:27,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 [2021-12-15 13:54:27,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:54:27,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:54:27,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:54:27,723 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:54:27,724 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:54:27,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list-2.i [2021-12-15 13:54:27,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3b94c0b/1fede6ccb187438aa21d2e1d3a14bbe7/FLAG3cffe7446 [2021-12-15 13:54:28,173 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:54:28,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i [2021-12-15 13:54:28,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3b94c0b/1fede6ccb187438aa21d2e1d3a14bbe7/FLAG3cffe7446 [2021-12-15 13:54:28,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3b94c0b/1fede6ccb187438aa21d2e1d3a14bbe7 [2021-12-15 13:54:28,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:54:28,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:54:28,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:28,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:54:28,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:54:28,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:28,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6486d280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28, skipping insertion in model container [2021-12-15 13:54:28,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:28,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:54:28,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:54:28,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2021-12-15 13:54:28,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:28,874 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:54:28,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2021-12-15 13:54:28,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:54:28,935 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:54:28,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28 WrapperNode [2021-12-15 13:54:28,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:54:28,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:54:28,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:54:28,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:54:28,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:28,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:28,989 INFO L137 Inliner]: procedures = 127, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2021-12-15 13:54:28,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:54:28,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:54:28,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:54:28,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:54:28,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:28,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:29,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:29,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:29,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:29,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:29,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:29,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:54:29,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:54:29,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:54:29,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:54:29,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:28" (1/1) ... [2021-12-15 13:54:29,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:54:29,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:54:29,080 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 13:54:29,089 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 13:54:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 13:54:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 13:54:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:54:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:54:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:54:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:54:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:54:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:54:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:54:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:54:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:54:29,201 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:54:29,202 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:54:29,208 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:54:29,211 INFO L158 Benchmark]: Toolchain (without parser) took 665.62ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 33.0MB in the end (delta: 14.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-12-15 13:54:29,211 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:54:29,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.13ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 43.6MB in the end (delta: 3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 13:54:29,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.16ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 41.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 13:54:29,213 INFO L158 Benchmark]: Boogie Preprocessor took 45.99ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 39.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:54:29,213 INFO L158 Benchmark]: RCFGBuilder took 172.80ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 33.0MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 13:54:29,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.13ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 43.6MB in the end (delta: 3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.16ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 41.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.99ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 39.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 172.80ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 33.0MB in the end (delta: 6.9MB). 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 13:54:29,243 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