./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-simple/sll2n_prepend_equal.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/sll2n_prepend_equal.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 e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:06:50,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:06:50,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:06:50,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:06:50,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:06:50,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:06:50,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:06:50,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:06:50,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:06:50,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:06:50,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:06:50,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:06:50,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:06:50,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:06:50,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:06:50,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:06:50,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:06:50,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:06:50,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:06:50,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:06:50,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:06:50,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:06:50,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:06:50,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:06:50,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:06:50,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:06:50,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:06:50,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:06:50,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:06:50,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:06:50,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:06:50,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:06:50,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:06:50,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:06:50,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:06:50,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:06:50,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:06:50,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:06:50,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:06:50,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:06:50,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:06:50,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:06:50,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:06:50,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:06:50,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:06:50,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:06:50,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:06:50,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:06:50,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:06:50,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:06:50,268 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:06:50,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:06:50,268 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:06:50,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:06:50,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:06:50,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:06:50,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:06:50,269 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:06:50,270 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:06:50,270 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:06:50,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:06:50,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:06:50,270 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:06:50,270 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:06:50,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:06:50,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:06:50,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:06:50,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:50,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:06:50,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:06:50,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:06:50,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:06:50,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:06:50,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 [2021-12-15 14:06:50,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:06:50,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:06:50,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:06:50,509 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:06:50,511 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:06:50,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i [2021-12-15 14:06:50,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c7e84a0/8d898f01fa5543b8879d60a4c01131cd/FLAG6519f0aea [2021-12-15 14:06:51,022 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:06:51,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_prepend_equal.i [2021-12-15 14:06:51,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c7e84a0/8d898f01fa5543b8879d60a4c01131cd/FLAG6519f0aea [2021-12-15 14:06:51,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c7e84a0/8d898f01fa5543b8879d60a4c01131cd [2021-12-15 14:06:51,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:06:51,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:06:51,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:51,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:06:51,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:06:51,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:51,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d6bf52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51, skipping insertion in model container [2021-12-15 14:06:51,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:51,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:06:51,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:06:51,802 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/sll2n_prepend_equal.i[24076,24089] [2021-12-15 14:06:51,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:51,826 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:06:51,882 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/sll2n_prepend_equal.i[24076,24089] [2021-12-15 14:06:51,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:51,919 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:06:51,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51 WrapperNode [2021-12-15 14:06:51,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:51,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:51,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:06:51,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:06:51,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:51,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,001 INFO L137 Inliner]: procedures = 127, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 106 [2021-12-15 14:06:52,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:52,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:06:52,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:06:52,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:06:52,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:06:52,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:06:52,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:06:52,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:06:52,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:51" (1/1) ... [2021-12-15 14:06:52,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:52,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:06:52,120 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 14:06:52,132 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 14:06:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 14:06:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 14:06:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 14:06:52,168 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 14:06:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:06:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:06:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 14:06:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:06:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:06:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:06:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 14:06:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 14:06:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:06:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:06:52,289 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:06:52,290 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:06:52,454 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:06:52,471 INFO L158 Benchmark]: Toolchain (without parser) took 1044.98ms. Allocated memory is still 100.7MB. Free memory was 69.1MB in the beginning and 53.1MB in the end (delta: 16.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-12-15 14:06:52,472 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:06:52,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.53ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 70.6MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:06:52,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.03ms. Allocated memory is still 100.7MB. Free memory was 70.6MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:06:52,473 INFO L158 Benchmark]: Boogie Preprocessor took 62.19ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:06:52,474 INFO L158 Benchmark]: RCFGBuilder took 396.71ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 53.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 14:06:52,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.53ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 70.6MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.03ms. Allocated memory is still 100.7MB. Free memory was 70.6MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.19ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.71ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 53.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. 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 14:06:52,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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/sll2n_prepend_equal.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 e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:06:54,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:06:54,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:06:54,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:06:54,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:06:54,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:06:54,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:06:54,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:06:54,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:06:54,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:06:54,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:06:54,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:06:54,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:06:54,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:06:54,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:06:54,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:06:54,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:06:54,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:06:54,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:06:54,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:06:54,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:06:54,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:06:54,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:06:54,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:06:54,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:06:54,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:06:54,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:06:54,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:06:54,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:06:54,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:06:54,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:06:54,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:06:54,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:06:54,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:06:54,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:06:54,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:06:54,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:06:54,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:06:54,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:06:54,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:06:54,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:06:54,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:06:54,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:06:54,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:06:54,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:06:54,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:06:54,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:06:54,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:06:54,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:06:54,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:06:54,526 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:06:54,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:06:54,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:06:54,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:06:54,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:06:54,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:06:54,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:06:54,527 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:06:54,527 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:06:54,528 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:06:54,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:06:54,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:06:54,528 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:06:54,528 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:06:54,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:06:54,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:06:54,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:06:54,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:06:54,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:06:54,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:54,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:06:54,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:06:54,530 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:06:54,530 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:06:54,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:06:54,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:06:54,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 [2021-12-15 14:06:54,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:06:54,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:06:54,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:06:54,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:06:54,842 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:06:54,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i [2021-12-15 14:06:54,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb81a881c/66e659cef89a45f5a1e7af9c6699b363/FLAG86190e426 [2021-12-15 14:06:55,496 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:06:55,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2n_prepend_equal.i [2021-12-15 14:06:55,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb81a881c/66e659cef89a45f5a1e7af9c6699b363/FLAG86190e426 [2021-12-15 14:06:55,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb81a881c/66e659cef89a45f5a1e7af9c6699b363 [2021-12-15 14:06:55,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:06:55,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:06:55,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:55,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:06:55,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:06:55,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:55" (1/1) ... [2021-12-15 14:06:55,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682f4e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:55, skipping insertion in model container [2021-12-15 14:06:55,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:06:55" (1/1) ... [2021-12-15 14:06:55,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:06:55,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:06:56,046 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/sll2n_prepend_equal.i[24076,24089] [2021-12-15 14:06:56,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:56,059 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:06:56,093 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/sll2n_prepend_equal.i[24076,24089] [2021-12-15 14:06:56,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:06:56,140 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:06:56,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56 WrapperNode [2021-12-15 14:06:56,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:06:56,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:56,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:06:56,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:06:56,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,189 INFO L137 Inliner]: procedures = 130, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 107 [2021-12-15 14:06:56,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:06:56,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:06:56,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:06:56,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:06:56,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:06:56,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:06:56,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:06:56,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:06:56,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:06:56" (1/1) ... [2021-12-15 14:06:56,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:06:56,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:06:56,270 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 14:06:56,273 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 14:06:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 14:06:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 14:06:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 14:06:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:06:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:06:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 14:06:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:06:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:06:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:06:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 14:06:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 14:06:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 14:06:56,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:06:56,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:06:56,424 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:06:56,440 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:06:56,747 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:06:56,750 INFO L158 Benchmark]: Toolchain (without parser) took 966.63ms. Allocated memory is still 56.6MB. Free memory was 40.3MB in the beginning and 32.3MB in the end (delta: 8.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-12-15 14:06:56,750 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:06:56,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.05ms. Allocated memory is still 56.6MB. Free memory was 40.1MB in the beginning and 36.6MB in the end (delta: 3.5MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2021-12-15 14:06:56,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.17ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 34.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:06:56,751 INFO L158 Benchmark]: Boogie Preprocessor took 49.99ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 32.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:06:56,752 INFO L158 Benchmark]: RCFGBuilder took 507.44ms. Allocated memory is still 56.6MB. Free memory was 32.6MB in the beginning and 32.3MB in the end (delta: 328.2kB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-12-15 14:06:56,754 INFO L339 ainManager$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 46.1MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.05ms. Allocated memory is still 56.6MB. Free memory was 40.1MB in the beginning and 36.6MB in the end (delta: 3.5MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.17ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 34.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.99ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 32.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.44ms. Allocated memory is still 56.6MB. Free memory was 32.6MB in the beginning and 32.3MB in the end (delta: 328.2kB). Peak memory consumption was 14.5MB. 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 14:06:56,787 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