./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all.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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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 c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:34:07,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:34:07,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:34:07,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:34:07,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:34:07,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:34:07,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:34:07,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:34:07,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:34:07,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:34:07,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:34:07,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:34:07,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:34:07,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:34:07,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:34:07,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:34:07,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:34:07,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:34:07,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:34:07,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:34:07,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:34:07,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:34:07,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:34:07,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:34:07,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:34:07,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:34:07,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:34:07,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:34:07,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:34:07,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:34:07,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:34:07,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:34:07,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:34:07,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:34:07,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:34:07,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:34:07,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:34:07,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:34:07,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:34:07,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:34:07,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:34:07,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:34:07,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:34:07,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:34:07,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:34:07,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:34:07,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:34:07,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:34:07,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:34:07,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:34:07,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:34:07,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:34:07,626 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:34:07,626 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:34:07,627 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:34:07,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:34:07,628 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:34:07,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:34:07,628 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:34:07,629 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:34:07,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:34:07,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:34:07,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:34:07,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:34:07,631 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:34:07,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:34:07,632 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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2021-11-23 15:34:07,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:34:08,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:34:08,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:34:08,022 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:34:08,023 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:34:08,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-23 15:34:08,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/b99285805/0e7f451b218b404e8ee1a713bf3e3022/FLAG59a31dab3 [2021-11-23 15:34:08,709 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:34:08,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-23 15:34:08,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/b99285805/0e7f451b218b404e8ee1a713bf3e3022/FLAG59a31dab3 [2021-11-23 15:34:08,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/b99285805/0e7f451b218b404e8ee1a713bf3e3022 [2021-11-23 15:34:08,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:34:08,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:34:08,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:34:08,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:34:08,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:34:08,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:08" (1/1) ... [2021-11-23 15:34:08,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a484720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:08, skipping insertion in model container [2021-11-23 15:34:08,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:08" (1/1) ... [2021-11-23 15:34:08,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:34:09,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:34:09,395 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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-23 15:34:09,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:34:09,406 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:34:09,446 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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-23 15:34:09,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:34:09,478 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:34:09,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09 WrapperNode [2021-11-23 15:34:09,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:34:09,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:34:09,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:34:09,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:34:09,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,570 INFO L137 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 8, calls inlined = 7, statements flattened = 117 [2021-11-23 15:34:09,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:34:09,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:34:09,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:34:09,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:34:09,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:34:09,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:34:09,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:34:09,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:34:09,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:09" (1/1) ... [2021-11-23 15:34:09,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:34:09,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:34:09,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:34:09,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:34:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:34:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:34:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:34:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:34:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:34:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:34:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:34:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:34:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:34:09,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:34:09,802 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:34:09,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:34:09,836 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:34:09,841 INFO L158 Benchmark]: Toolchain (without parser) took 860.35ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 49.2MB in the end (delta: 5.9MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-11-23 15:34:09,842 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 92.3MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:34:09,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.21ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 60.7MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:34:09,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.32ms. Allocated memory is still 92.3MB. Free memory was 60.7MB in the beginning and 58.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:34:09,846 INFO L158 Benchmark]: Boogie Preprocessor took 48.36ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:34:09,847 INFO L158 Benchmark]: RCFGBuilder took 217.40ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 49.5MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:34:09,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 92.3MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.21ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 60.7MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.32ms. Allocated memory is still 92.3MB. Free memory was 60.7MB in the beginning and 58.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.36ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 217.40ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 49.5MB 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 15:34:09,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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 c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:34:12,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:34:12,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:34:12,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:34:12,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:34:12,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:34:12,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:34:12,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:34:12,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:34:12,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:34:12,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:34:12,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:34:12,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:34:12,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:34:12,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:34:12,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:34:12,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:34:12,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:34:12,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:34:12,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:34:12,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:34:12,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:34:12,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:34:12,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:34:12,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:34:12,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:34:12,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:34:12,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:34:12,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:34:12,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:34:12,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:34:12,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:34:12,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:34:12,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:34:12,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:34:12,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:34:12,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:34:12,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:34:12,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:34:12,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:34:12,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:34:12,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:34:12,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:34:12,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:34:12,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:34:12,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:34:12,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:34:12,920 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:34:12,920 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:34:12,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:34:12,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:34:12,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:34:12,921 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:34:12,921 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:34:12,922 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:34:12,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:34:12,922 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:34:12,922 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:34:12,923 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:34:12,923 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:34:12,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:34:12,924 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:34:12,924 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:34:12,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:34:12,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:34:12,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:34:12,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:34:12,925 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:34:12,926 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:34:12,926 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:34:12,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:34:12,926 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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2021-11-23 15:34:13,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:34:13,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:34:13,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:34:13,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:34:13,372 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:34:13,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-23 15:34:13,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/2e368479a/b7d649a2b5e74872acaadbee29fc1929/FLAGe98e5acaa [2021-11-23 15:34:14,187 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:34:14,188 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-23 15:34:14,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/2e368479a/b7d649a2b5e74872acaadbee29fc1929/FLAGe98e5acaa [2021-11-23 15:34:14,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/data/2e368479a/b7d649a2b5e74872acaadbee29fc1929 [2021-11-23 15:34:14,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:34:14,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:34:14,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:34:14,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:34:14,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:34:14,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:14" (1/1) ... [2021-11-23 15:34:14,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f567e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:14, skipping insertion in model container [2021-11-23 15:34:14,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:14" (1/1) ... [2021-11-23 15:34:14,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:34:14,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:34:14,997 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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-23 15:34:15,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:34:15,014 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:34:15,096 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_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-23 15:34:15,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:34:15,160 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:34:15,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15 WrapperNode [2021-11-23 15:34:15,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:34:15,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:34:15,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:34:15,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:34:15,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,238 INFO L137 Inliner]: procedures = 129, calls = 27, calls flagged for inlining = 8, calls inlined = 7, statements flattened = 117 [2021-11-23 15:34:15,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:34:15,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:34:15,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:34:15,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:34:15,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:34:15,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:34:15,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:34:15,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:34:15,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:15" (1/1) ... [2021-11-23 15:34:15,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:34:15,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:34:15,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:34:15,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:34:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:34:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:34:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:34:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:34:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:34:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:34:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:34:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:34:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:34:15,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:34:15,576 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:34:15,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:34:15,624 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:34:15,632 INFO L158 Benchmark]: Toolchain (without parser) took 1171.22ms. Allocated memory is still 71.3MB. Free memory was 53.8MB in the beginning and 35.4MB in the end (delta: 18.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-11-23 15:34:15,634 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 71.3MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:34:15,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.82ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 47.2MB in the end (delta: 6.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:34:15,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.42ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 44.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:34:15,640 INFO L158 Benchmark]: Boogie Preprocessor took 65.89ms. Allocated memory is still 71.3MB. Free memory was 44.9MB in the beginning and 43.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:34:15,641 INFO L158 Benchmark]: RCFGBuilder took 324.04ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 35.4MB in the end (delta: 7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:34:15,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 71.3MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.82ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 47.2MB in the end (delta: 6.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.42ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 44.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.89ms. Allocated memory is still 71.3MB. Free memory was 44.9MB in the beginning and 43.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.04ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 35.4MB in the end (delta: 7.8MB). Peak memory consumption was 4.2MB. 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 15:34:15,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b0b9f8-0b7b-46d4-8478-a18c81d38f73/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