./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/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_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:02:57,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:02:57,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:02:57,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:02:57,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:02:57,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:02:57,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:02:57,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:02:57,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:02:57,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:02:57,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:02:57,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:02:57,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:02:57,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:02:57,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:02:57,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:02:57,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:02:57,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:02:57,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:02:57,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:02:57,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:02:57,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:02:57,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:02:57,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:02:57,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:02:57,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:02:57,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:02:57,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:02:57,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:02:57,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:02:57,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:02:57,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:02:57,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:02:57,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:02:57,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:02:57,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:02:57,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:02:57,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:02:57,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:02:57,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:02:57,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:02:57,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:02:57,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:02:57,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:02:57,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:02:57,781 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:02:57,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:02:57,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:02:57,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:02:57,783 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:02:57,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:02:57,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:02:57,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:02:57,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:02:57,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:02:57,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:02:57,785 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:02:57,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:02:57,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:02:57,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:02:57,786 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:02:57,786 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:02:57,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:02:57,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:02:57,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:02:57,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:02:57,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:02:57,788 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:02:57,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:02:57,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:02:57,789 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 [2021-11-23 15:02:58,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:02:58,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:02:58,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:02:58,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:02:58,157 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:02:58,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i [2021-11-23 15:02:58,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/58d288e47/6b47e355e84f4aaeba84d8a654bd6c4c/FLAGe43ee5fbb [2021-11-23 15:02:58,933 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:02:58,934 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2021-11-23 15:02:58,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/58d288e47/6b47e355e84f4aaeba84d8a654bd6c4c/FLAGe43ee5fbb [2021-11-23 15:02:59,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/58d288e47/6b47e355e84f4aaeba84d8a654bd6c4c [2021-11-23 15:02:59,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:02:59,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:02:59,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:59,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:02:59,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:02:59,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:02:59,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32bed133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59, skipping insertion in model container [2021-11-23 15:02:59,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:02:59,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:02:59,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:02:59,761 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2021-11-23 15:02:59,773 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2021-11-23 15:02:59,784 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2021-11-23 15:02:59,786 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2021-11-23 15:02:59,789 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2021-11-23 15:02:59,790 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2021-11-23 15:02:59,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:59,813 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:02:59,872 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2021-11-23 15:02:59,878 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2021-11-23 15:02:59,890 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2021-11-23 15:02:59,894 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2021-11-23 15:02:59,896 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2021-11-23 15:02:59,898 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2021-11-23 15:02:59,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:59,943 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:02:59,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59 WrapperNode [2021-11-23 15:02:59,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:59,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:02:59,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:02:59,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:02:59,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,054 INFO L137 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 194 [2021-11-23 15:03:00,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:00,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:00,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:00,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:00,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:00,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:00,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:00,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:00,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:59" (1/1) ... [2021-11-23 15:03:00,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:00,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:00,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:00,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:03:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:03:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:03:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:03:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:03:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:03:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:03:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:00,370 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:00,372 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:00,746 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:00,770 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:03:00,775 INFO L158 Benchmark]: Toolchain (without parser) took 1649.43ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 69.4MB in the end (delta: 21.2MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-11-23 15:03:00,776 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 127.9MB. Free memory was 102.5MB in the beginning and 102.5MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:00,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 816.68ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 91.7MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:03:00,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.75ms. Allocated memory is still 127.9MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:00,779 INFO L158 Benchmark]: Boogie Preprocessor took 42.35ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:00,781 INFO L158 Benchmark]: RCFGBuilder took 674.72ms. Allocated memory is still 127.9MB. Free memory was 87.5MB in the beginning and 69.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 15:03:00,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 127.9MB. Free memory was 102.5MB in the beginning and 102.5MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 816.68ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 91.7MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.75ms. Allocated memory is still 127.9MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.35ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 674.72ms. Allocated memory is still 127.9MB. Free memory was 87.5MB in the beginning and 69.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. 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 15:03:00,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/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_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/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_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:03,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:03,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:03,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:03,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:03,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:03,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:03,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:03,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:03,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:03,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:03,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:03,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:03,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:03,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:03,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:03,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:03,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:03,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:03,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:03,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:03,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:03,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:03,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:03,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:03,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:03,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:03,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:03,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:03,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:03,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:03,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:03,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:03,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:03,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:03,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:03,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:03,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:03,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:03,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:03,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:03,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:03:03,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:03,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:03,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:03,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:03,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:03,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:03,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:03,947 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:03,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:03,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:03,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:03,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:03,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:03,950 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:03:03,950 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:03:03,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:03:03,951 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:03,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:03,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:03,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:03,952 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:03,952 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:03,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:03,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:03,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:03,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:03,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:03,955 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:03:03,955 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:03:03,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:03,955 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:03:03,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:03:03,956 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 [2021-11-23 15:03:04,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:04,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:04,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:04,530 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:04,531 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:04,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i [2021-11-23 15:03:04,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/6bedc848a/6dcc4f01861a479aa990f5723de32b20/FLAGde3238150 [2021-11-23 15:03:05,332 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:05,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2021-11-23 15:03:05,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/6bedc848a/6dcc4f01861a479aa990f5723de32b20/FLAGde3238150 [2021-11-23 15:03:05,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/data/6bedc848a/6dcc4f01861a479aa990f5723de32b20 [2021-11-23 15:03:05,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:05,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:05,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:05,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:05,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:05,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:05" (1/1) ... [2021-11-23 15:03:05,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7826cd29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:05, skipping insertion in model container [2021-11-23 15:03:05,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:05" (1/1) ... [2021-11-23 15:03:05,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:05,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:06,193 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2021-11-23 15:03:06,199 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2021-11-23 15:03:06,206 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2021-11-23 15:03:06,207 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2021-11-23 15:03:06,209 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2021-11-23 15:03:06,211 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2021-11-23 15:03:06,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:06,231 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:06,275 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2021-11-23 15:03:06,278 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2021-11-23 15:03:06,284 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2021-11-23 15:03:06,285 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2021-11-23 15:03:06,288 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2021-11-23 15:03:06,291 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_95b7c7ed-8d76-418f-b7a9-b01d42885719/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2021-11-23 15:03:06,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:06,358 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:06,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06 WrapperNode [2021-11-23 15:03:06,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:06,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:06,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:06,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:06,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,466 INFO L137 Inliner]: procedures = 122, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 187 [2021-11-23 15:03:06,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:06,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:06,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:06,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:06,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:06,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:06,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:06,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:06,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:06" (1/1) ... [2021-11-23 15:03:06,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:06,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:06,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:06,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:06,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:03:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:03:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:03:06,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:03:06,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:03:06,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:03:06,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:03:06,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:06,830 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:06,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:07,531 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:07,546 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:03:07,551 INFO L158 Benchmark]: Toolchain (without parser) took 1944.85ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 35.3MB in the beginning and 37.8MB in the end (delta: -2.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:07,552 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:07,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 749.38ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 31.1MB in the end (delta: 4.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-11-23 15:03:07,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.53ms. Allocated memory is still 58.7MB. Free memory was 31.1MB in the beginning and 28.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:07,554 INFO L158 Benchmark]: Boogie Preprocessor took 96.98ms. Allocated memory is still 58.7MB. Free memory was 28.8MB in the beginning and 26.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:07,555 INFO L158 Benchmark]: RCFGBuilder took 980.74ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 26.6MB in the beginning and 37.8MB in the end (delta: -11.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-11-23 15:03:07,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 749.38ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 31.1MB in the end (delta: 4.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.53ms. Allocated memory is still 58.7MB. Free memory was 31.1MB in the beginning and 28.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.98ms. Allocated memory is still 58.7MB. Free memory was 28.8MB in the beginning and 26.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 980.74ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 26.6MB in the beginning and 37.8MB in the end (delta: -11.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:03:07,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b7c7ed-8d76-418f-b7a9-b01d42885719/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