./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2n_remove_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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2n_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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 bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:01:40,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:01:40,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:01:40,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:01:40,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:01:40,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:01:40,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:01:40,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:01:40,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:01:40,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:01:40,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:01:40,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:01:40,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:01:40,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:01:40,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:01:40,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:01:40,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:01:40,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:01:40,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:01:40,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:01:40,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:01:40,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:01:40,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:01:40,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:01:40,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:01:40,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:01:40,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:01:40,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:01:40,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:01:40,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:01:40,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:01:40,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:01:40,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:01:40,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:01:40,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:01:40,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:01:40,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:01:40,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:01:40,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:01:40,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:01:40,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:01:40,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:01:40,954 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:01:40,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:01:40,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:01:40,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:01:40,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:01:40,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:01:40,956 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:01:40,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:01:40,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:01:40,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:01:40,957 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:01:40,957 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:01:40,957 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:01:40,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:01:40,957 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:01:40,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:01:40,958 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:01:40,958 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:01:40,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:01:40,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:40,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:01:40,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:01:40,959 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:01:40,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:01:40,959 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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd [2021-11-23 15:01:41,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:01:41,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:01:41,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:01:41,259 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:01:41,260 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:01:41,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 15:01:41,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/7f995e941/1593a01a2ad44291bf6202f957de8b5b/FLAGf31e9d967 [2021-11-23 15:01:41,948 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:01:41,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 15:01:41,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/7f995e941/1593a01a2ad44291bf6202f957de8b5b/FLAGf31e9d967 [2021-11-23 15:01:42,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/7f995e941/1593a01a2ad44291bf6202f957de8b5b [2021-11-23 15:01:42,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:01:42,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:01:42,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:42,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:01:42,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:01:42,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebfda26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42, skipping insertion in model container [2021-11-23 15:01:42,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:01:42,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:01:42,607 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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 15:01:42,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:42,618 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:01:42,658 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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 15:01:42,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:42,692 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:01:42,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42 WrapperNode [2021-11-23 15:01:42,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:42,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:42,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:01:42,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:01:42,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,741 INFO L137 Inliner]: procedures = 126, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 86 [2021-11-23 15:01:42,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:42,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:01:42,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:01:42,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:01:42,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:01:42,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:01:42,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:01:42,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:01:42,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:42" (1/1) ... [2021-11-23 15:01:42,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:42,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:01:42,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:01:42,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:01:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:01:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:01:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:01:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:01:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:01:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:01:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:01:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:01:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:01:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:01:42,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:01:42,959 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:01:42,961 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:01:42,988 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:01:42,998 INFO L158 Benchmark]: Toolchain (without parser) took 741.49ms. Allocated memory is still 94.4MB. Free memory was 65.0MB in the beginning and 71.4MB in the end (delta: -6.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-11-23 15:01:42,999 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 77.6MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:43,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.71ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 48.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 15:01:43,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.61ms. Allocated memory is still 94.4MB. Free memory was 48.4MB in the beginning and 46.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:43,005 INFO L158 Benchmark]: Boogie Preprocessor took 29.78ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 44.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:43,007 INFO L158 Benchmark]: RCFGBuilder took 222.86ms. Allocated memory is still 94.4MB. Free memory was 44.9MB in the beginning and 71.4MB in the end (delta: -26.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:43,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 77.6MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.71ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 48.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.61ms. Allocated memory is still 94.4MB. Free memory was 48.4MB in the beginning and 46.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.78ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 44.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 222.86ms. Allocated memory is still 94.4MB. Free memory was 44.9MB in the beginning and 71.4MB in the end (delta: -26.5MB). Peak memory consumption was 14.1MB. 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 15:01:43,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2n_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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 bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:01:45,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:01:45,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:01:45,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:01:45,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:01:45,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:01:45,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:01:45,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:01:45,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:01:45,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:01:45,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:01:45,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:01:45,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:01:45,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:01:45,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:01:45,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:01:45,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:01:45,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:01:45,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:01:45,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:01:45,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:01:45,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:01:45,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:01:45,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:01:45,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:01:45,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:01:45,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:01:45,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:01:45,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:01:45,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:01:45,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:01:45,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:01:45,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:01:45,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:01:45,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:01:45,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:01:45,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:01:45,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:01:45,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:01:45,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:01:45,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:01:45,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:01:45,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:01:45,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:01:45,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:01:45,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:01:45,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:01:45,719 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:01:45,719 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:01:45,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:01:45,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:01:45,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:01:45,720 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:01:45,721 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:01:45,721 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:01:45,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:01:45,721 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:01:45,721 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:01:45,722 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:01:45,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:01:45,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:01:45,722 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:01:45,723 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:01:45,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:01:45,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:45,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:01:45,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:01:45,724 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:01:45,724 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:01:45,725 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:01:45,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:01:45,725 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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd [2021-11-23 15:01:46,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:01:46,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:01:46,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:01:46,141 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:01:46,144 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:01:46,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 15:01:46,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/d62cc3697/da5e8c62e6474e4dbf58372412f112e8/FLAG4340e2202 [2021-11-23 15:01:46,910 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:01:46,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 15:01:46,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/d62cc3697/da5e8c62e6474e4dbf58372412f112e8/FLAG4340e2202 [2021-11-23 15:01:47,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/data/d62cc3697/da5e8c62e6474e4dbf58372412f112e8 [2021-11-23 15:01:47,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:01:47,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:01:47,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:47,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:01:47,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:01:47,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@987c9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47, skipping insertion in model container [2021-11-23 15:01:47,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:01:47,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:01:47,589 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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 15:01:47,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:47,605 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:01:47,650 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_ae0cc397-46af-4a94-8f50-5c1d8722b08c/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 15:01:47,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:47,692 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:01:47,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47 WrapperNode [2021-11-23 15:01:47,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:47,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:47,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:01:47,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:01:47,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,749 INFO L137 Inliner]: procedures = 129, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 87 [2021-11-23 15:01:47,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:47,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:01:47,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:01:47,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:01:47,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:01:47,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:01:47,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:01:47,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:01:47,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:47" (1/1) ... [2021-11-23 15:01:47,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:47,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:01:47,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:01:47,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:01:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:01:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:01:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:01:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:01:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:01:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:01:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:01:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:01:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:01:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:01:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:01:48,043 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:01:48,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:01:48,067 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:01:48,072 INFO L158 Benchmark]: Toolchain (without parser) took 897.10ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 31.0MB in the end (delta: 14.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-11-23 15:01:48,073 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 67.1MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:48,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.95ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 42.3MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:01:48,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.56ms. Allocated memory is still 67.1MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:48,076 INFO L158 Benchmark]: Boogie Preprocessor took 36.46ms. Allocated memory is still 67.1MB. Free memory was 40.2MB in the beginning and 38.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:48,077 INFO L158 Benchmark]: RCFGBuilder took 282.45ms. Allocated memory is still 67.1MB. Free memory was 38.4MB in the beginning and 31.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:01:48,081 INFO L339 ainManager$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 67.1MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.95ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 42.3MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.56ms. Allocated memory is still 67.1MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.46ms. Allocated memory is still 67.1MB. Free memory was 40.2MB in the beginning and 38.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.45ms. Allocated memory is still 67.1MB. Free memory was 38.4MB in the beginning and 31.0MB in the end (delta: 7.4MB). 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 15:01:48,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0cc397-46af-4a94-8f50-5c1d8722b08c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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