./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71fe950642bac282d48da6f500677ae534e71a907f9a56d9941372cc95f40daa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:49:37,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:49:37,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:49:37,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:49:37,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:49:37,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:49:37,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:49:37,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:49:37,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:49:37,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:49:37,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:49:37,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:49:37,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:49:37,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:49:37,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:49:37,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:49:37,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:49:37,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:49:37,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:49:37,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:49:37,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:49:37,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:49:37,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:49:37,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:49:37,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:49:37,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:49:37,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:49:37,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:49:37,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:49:37,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:49:37,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:49:37,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:49:37,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:49:37,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:49:37,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:49:37,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:49:37,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:49:37,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:49:37,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:49:37,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:49:37,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:49:37,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:49:37,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:49:37,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:49:37,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:49:37,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:49:37,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:49:37,509 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:49:37,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:49:37,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:49:37,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:49:37,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:49:37,510 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:49:37,510 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:49:37,511 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:49:37,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:49:37,511 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:49:37,512 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:49:37,512 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:49:37,512 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:49:37,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:49:37,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:37,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:49:37,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:49:37,514 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:49:37,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:49:37,514 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71fe950642bac282d48da6f500677ae534e71a907f9a56d9941372cc95f40daa [2021-11-23 15:49:37,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:49:37,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:49:37,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:49:37,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:49:37,807 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:49:37,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i [2021-11-23 15:49:37,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/b3e9f04b4/d4ba9926d663479899e04f90137a2143/FLAGd18cdd492 [2021-11-23 15:49:38,422 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:49:38,423 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i [2021-11-23 15:49:38,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/b3e9f04b4/d4ba9926d663479899e04f90137a2143/FLAGd18cdd492 [2021-11-23 15:49:38,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/b3e9f04b4/d4ba9926d663479899e04f90137a2143 [2021-11-23 15:49:38,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:49:38,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:49:38,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:38,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:49:38,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:49:38,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:38" (1/1) ... [2021-11-23 15:49:38,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fdd694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:38, skipping insertion in model container [2021-11-23 15:49:38,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:38" (1/1) ... [2021-11-23 15:49:38,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:49:38,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:49:39,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i[24175,24188] [2021-11-23 15:49:39,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:39,137 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:49:39,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i[24175,24188] [2021-11-23 15:49:39,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:39,209 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:49:39,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39 WrapperNode [2021-11-23 15:49:39,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:39,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:39,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:49:39,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:49:39,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,255 INFO L137 Inliner]: procedures = 122, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 100 [2021-11-23 15:49:39,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:39,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:49:39,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:49:39,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:49:39,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:49:39,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:49:39,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:49:39,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:49:39,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:39" (1/1) ... [2021-11-23 15:49:39,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:39,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:49:39,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:49:39,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:49:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:49:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:49:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:49:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:49:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:49:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:49:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:49:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:49:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:49:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:49:39,585 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:49:39,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:49:39,641 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:49:39,645 INFO L158 Benchmark]: Toolchain (without parser) took 905.57ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 56.9MB in the end (delta: 1.1MB). Peak memory consumption was 167.3kB. Max. memory is 16.1GB. [2021-11-23 15:49:39,646 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 75.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:39,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.98ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 68.2MB in the end (delta: -10.3MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-23 15:49:39,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.97ms. Allocated memory is still 100.7MB. Free memory was 68.2MB in the beginning and 66.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:49:39,649 INFO L158 Benchmark]: Boogie Preprocessor took 66.58ms. Allocated memory is still 100.7MB. Free memory was 66.1MB in the beginning and 64.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:39,650 INFO L158 Benchmark]: RCFGBuilder took 317.51ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 56.9MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:49:39,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 75.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.98ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 68.2MB in the end (delta: -10.3MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.97ms. Allocated memory is still 100.7MB. Free memory was 68.2MB in the beginning and 66.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.58ms. Allocated memory is still 100.7MB. Free memory was 66.1MB in the beginning and 64.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.51ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 56.9MB in the end (delta: 7.5MB). 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. [2021-11-23 15:49:39,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71fe950642bac282d48da6f500677ae534e71a907f9a56d9941372cc95f40daa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:49:42,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:49:42,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:49:42,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:49:42,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:49:42,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:49:42,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:49:42,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:49:42,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:49:42,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:49:42,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:49:42,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:49:42,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:49:42,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:49:42,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:49:42,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:49:42,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:49:42,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:49:42,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:49:42,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:49:42,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:49:42,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:49:42,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:49:42,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:49:42,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:49:42,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:49:42,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:49:42,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:49:42,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:49:42,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:49:42,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:49:42,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:49:42,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:49:42,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:49:42,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:49:42,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:49:42,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:49:42,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:49:42,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:49:42,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:49:42,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:49:42,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:49:42,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:49:42,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:49:42,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:49:42,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:49:42,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:49:42,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:49:42,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:49:42,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:49:42,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:49:42,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:49:42,331 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:49:42,331 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:49:42,331 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:49:42,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:49:42,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:49:42,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:49:42,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:49:42,332 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:49:42,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:49:42,333 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:49:42,333 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:49:42,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:49:42,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:42,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:49:42,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:49:42,334 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:49:42,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:49:42,334 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:49:42,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:49:42,335 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71fe950642bac282d48da6f500677ae534e71a907f9a56d9941372cc95f40daa [2021-11-23 15:49:42,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:49:42,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:49:42,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:49:42,726 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:49:42,728 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:49:42,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i [2021-11-23 15:49:42,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/ada731eda/a7df92f0d83c439d9fb34572c5ac126a/FLAGd21eaa9b9 [2021-11-23 15:49:43,380 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:49:43,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i [2021-11-23 15:49:43,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/ada731eda/a7df92f0d83c439d9fb34572c5ac126a/FLAGd21eaa9b9 [2021-11-23 15:49:43,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/data/ada731eda/a7df92f0d83c439d9fb34572c5ac126a [2021-11-23 15:49:43,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:49:43,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:49:43,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:43,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:49:43,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:49:43,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ab8dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43, skipping insertion in model container [2021-11-23 15:49:43,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:49:43,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:49:44,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i[24175,24188] [2021-11-23 15:49:44,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:44,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:49:44,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i[24175,24188] [2021-11-23 15:49:44,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:44,254 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:49:44,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44 WrapperNode [2021-11-23 15:49:44,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:44,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:44,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:49:44,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:49:44,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,316 INFO L137 Inliner]: procedures = 125, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2021-11-23 15:49:44,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:44,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:49:44,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:49:44,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:49:44,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:49:44,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:49:44,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:49:44,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:49:44,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:44" (1/1) ... [2021-11-23 15:49:44,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:44,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:49:44,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:49:44,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:49:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:49:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:49:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:49:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:49:44,591 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:49:44,593 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:49:44,624 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:49:44,631 INFO L158 Benchmark]: Toolchain (without parser) took 957.20ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 28.9MB in the beginning and 37.9MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:49:44,633 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 34.0MB in the beginning and 33.9MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:44,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.93ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 28.7MB in the beginning and 49.2MB in the end (delta: -20.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-11-23 15:49:44,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.48ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 47.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:49:44,636 INFO L158 Benchmark]: Boogie Preprocessor took 45.71ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 45.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:49:44,637 INFO L158 Benchmark]: RCFGBuilder took 265.14ms. Allocated memory is still 75.5MB. Free memory was 45.3MB in the beginning and 37.9MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:49:44,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 34.0MB in the beginning and 33.9MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.93ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 28.7MB in the beginning and 49.2MB in the end (delta: -20.5MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.48ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 47.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.71ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 45.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.14ms. Allocated memory is still 75.5MB. Free memory was 45.3MB in the beginning and 37.9MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:49:44,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9af5d594-6513-4883-96e5-2254f461699c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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