./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-2.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_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/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_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/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_57aa1053-64da-46cb-bd4f-08a3e71298ed/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 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:35:50,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:35:50,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:35:51,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:35:51,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:35:51,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:35:51,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:35:51,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:35:51,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:35:51,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:35:51,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:35:51,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:35:51,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:35:51,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:35:51,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:35:51,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:35:51,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:35:51,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:35:51,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:35:51,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:35:51,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:35:51,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:35:51,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:35:51,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:35:51,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:35:51,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:35:51,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:35:51,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:35:51,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:35:51,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:35:51,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:35:51,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:35:51,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:35:51,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:35:51,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:35:51,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:35:51,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:35:51,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:35:51,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:35:51,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:35:51,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:35:51,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:35:51,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:35:51,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:35:51,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:35:51,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:35:51,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:35:51,114 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:35:51,114 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:35:51,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:35:51,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:35:51,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:35:51,115 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:35:51,115 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:35:51,115 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:35:51,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:35:51,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:35:51,116 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:35:51,116 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:35:51,116 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:35:51,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:35:51,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:35:51,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:35:51,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:35:51,117 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:35:51,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:35:51,117 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 [2021-11-23 15:35:51,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:35:51,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:35:51,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:35:51,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:35:51,415 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:35:51,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:35:51,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/e01210f20/ee1d3cd3b6b944f2830180fa838defc0/FLAG37ced1968 [2021-11-23 15:35:52,029 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:35:52,030 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:35:52,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/e01210f20/ee1d3cd3b6b944f2830180fa838defc0/FLAG37ced1968 [2021-11-23 15:35:52,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/e01210f20/ee1d3cd3b6b944f2830180fa838defc0 [2021-11-23 15:35:52,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:35:52,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:35:52,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:35:52,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:35:52,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:35:52,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:52,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f49c21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52, skipping insertion in model container [2021-11-23 15:35:52,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:52,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:35:52,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:35:52,803 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:35:52,809 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:35:52,815 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:35:52,816 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:35:52,820 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:35:52,821 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:35:52,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:35:52,838 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:35:52,876 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:35:52,879 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:35:52,884 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:35:52,885 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:35:52,887 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:35:52,888 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:35:52,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:35:52,946 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:35:52,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52 WrapperNode [2021-11-23 15:35:52,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:35:52,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:35:52,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:35:52,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:35:52,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:52,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,025 INFO L137 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 197 [2021-11-23 15:35:53,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:35:53,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:35:53,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:35:53,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:35:53,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:35:53,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:35:53,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:35:53,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:35:53,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:52" (1/1) ... [2021-11-23 15:35:53,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:35:53,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:35:53,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:35:53,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:35:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:35:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:35:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:35:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:35:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:35:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:35:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:35:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:35:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:35:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:35:53,312 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:35:53,314 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:35:53,952 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:35:54,041 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.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:35:54,046 INFO L158 Benchmark]: Toolchain (without parser) took 1711.63ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 36.3MB in the end (delta: 21.4MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-11-23 15:35:54,047 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:35:54,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.13ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 66.8MB in the end (delta: -9.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-11-23 15:35:54,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.76ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 64.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:35:54,049 INFO L158 Benchmark]: Boogie Preprocessor took 85.27ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 62.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:35:54,050 INFO L158 Benchmark]: RCFGBuilder took 931.52ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 36.3MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 15:35:54,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.13ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 66.8MB in the end (delta: -9.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.76ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 64.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.27ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 62.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 931.52ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 36.3MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. 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.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:35:54,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/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_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/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_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/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_57aa1053-64da-46cb-bd4f-08a3e71298ed/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 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:35:56,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:35:56,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:35:56,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:35:56,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:35:56,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:35:56,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:35:56,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:35:56,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:35:56,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:35:56,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:35:56,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:35:56,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:35:56,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:35:56,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:35:56,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:35:56,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:35:56,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:35:56,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:35:56,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:35:56,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:35:56,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:35:56,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:35:56,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:35:56,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:35:56,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:35:56,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:35:56,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:35:56,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:35:56,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:35:56,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:35:56,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:35:56,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:35:56,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:35:56,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:35:56,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:35:56,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:35:56,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:35:56,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:35:56,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:35:56,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:35:56,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:35:57,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:35:57,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:35:57,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:35:57,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:35:57,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:35:57,019 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:35:57,019 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:35:57,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:35:57,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:35:57,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:35:57,021 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:35:57,021 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:35:57,021 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:35:57,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:35:57,022 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:35:57,022 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:35:57,022 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:35:57,022 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:35:57,022 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:35:57,023 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:35:57,023 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:35:57,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:35:57,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:35:57,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:35:57,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:35:57,024 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:35:57,024 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:35:57,024 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:35:57,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:35:57,025 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 [2021-11-23 15:35:57,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:35:57,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:35:57,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:35:57,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:35:57,493 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:35:57,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:35:57,580 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/a22fba959/1c12fa7ed2dd40afa18ba50cfce5d136/FLAG46b87e295 [2021-11-23 15:35:58,244 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:35:58,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:35:58,259 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/a22fba959/1c12fa7ed2dd40afa18ba50cfce5d136/FLAG46b87e295 [2021-11-23 15:35:58,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/data/a22fba959/1c12fa7ed2dd40afa18ba50cfce5d136 [2021-11-23 15:35:58,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:35:58,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:35:58,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:35:58,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:35:58,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:35:58,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:58" (1/1) ... [2021-11-23 15:35:58,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c47be50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:58, skipping insertion in model container [2021-11-23 15:35:58,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:58" (1/1) ... [2021-11-23 15:35:58,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:35:58,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:35:58,947 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:35:58,953 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:35:58,967 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:35:58,969 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:35:58,972 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:35:58,974 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:35:58,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:35:59,008 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:35:59,058 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:35:59,061 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:35:59,065 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:35:59,066 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:35:59,068 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:35:59,069 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_57aa1053-64da-46cb-bd4f-08a3e71298ed/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:35:59,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:35:59,108 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:35:59,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59 WrapperNode [2021-11-23 15:35:59,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:35:59,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:35:59,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:35:59,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:35:59,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,185 INFO L137 Inliner]: procedures = 122, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 190 [2021-11-23 15:35:59,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:35:59,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:35:59,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:35:59,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:35:59,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:35:59,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:35:59,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:35:59,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:35:59,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59" (1/1) ... [2021-11-23 15:35:59,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:35:59,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:35:59,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:35:59,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:35:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:35:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:35:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:35:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:35:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:35:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:35:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:35:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:35:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:35:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:35:59,524 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:35:59,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:36:00,436 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:36:00,481 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.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:36:00,489 INFO L158 Benchmark]: Toolchain (without parser) took 1969.45ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.5MB in the beginning and 37.8MB in the end (delta: -6.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-23 15:36:00,493 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:36:00,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.35ms. Allocated memory is still 54.5MB. Free memory was 31.3MB in the beginning and 27.4MB in the end (delta: 3.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-11-23 15:36:00,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.87ms. Allocated memory is still 54.5MB. Free memory was 27.4MB in the beginning and 25.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:36:00,495 INFO L158 Benchmark]: Boogie Preprocessor took 92.13ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 25.0MB in the beginning and 50.9MB in the end (delta: -25.9MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-23 15:36:00,495 INFO L158 Benchmark]: RCFGBuilder took 1204.78ms. Allocated memory is still 69.2MB. Free memory was 50.9MB in the beginning and 37.8MB in the end (delta: 13.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-11-23 15:36:00,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.35ms. Allocated memory is still 54.5MB. Free memory was 31.3MB in the beginning and 27.4MB in the end (delta: 3.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.87ms. Allocated memory is still 54.5MB. Free memory was 27.4MB in the beginning and 25.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.13ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 25.0MB in the beginning and 50.9MB in the end (delta: -25.9MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1204.78ms. Allocated memory is still 69.2MB. Free memory was 50.9MB in the beginning and 37.8MB in the end (delta: 13.1MB). Peak memory consumption was 21.1MB. 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.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:36:00,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57aa1053-64da-46cb-bd4f-08a3e71298ed/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