./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_flag-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:52,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:52,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:52,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:52,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:52,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:52,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:52,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:52,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:52,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:52,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:52,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:52,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:52,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:52,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:52,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:52,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:52,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:52,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:52,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:52,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:52,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:52,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:52,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:52,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:52,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:52,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:52,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:52,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:52,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:52,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:52,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:52,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:52,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:52,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:52,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:52,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:52,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:52,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:52,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:52,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:52,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2021-11-23 17:19:52,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:52,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:52,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:52,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:52,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:52,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:52,774 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:52,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:52,774 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:52,774 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:19:52,776 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:52,776 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:52,776 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:19:52,776 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:19:52,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:52,777 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:19:52,777 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:19:52,777 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:19:52,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:19:52,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:19:52,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:52,779 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:52,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:19:52,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:19:52,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:52,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:52,780 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:19:52,781 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:19:52,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:52,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:19:52,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:52,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:52,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:52,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:52,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:52,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:52,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:52,784 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:19:52,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:19:52,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:52,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:52,786 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b [2021-11-23 17:19:53,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:53,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:53,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:53,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:53,140 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:53,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-properties/list_flag-1.i [2021-11-23 17:19:53,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/73a92874f/fa54c4f1b82349b1a8f2ab91f67f2325/FLAGabd5f6e3f [2021-11-23 17:19:53,839 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:53,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/sv-benchmarks/c/list-properties/list_flag-1.i [2021-11-23 17:19:53,856 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/73a92874f/fa54c4f1b82349b1a8f2ab91f67f2325/FLAGabd5f6e3f [2021-11-23 17:19:54,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/73a92874f/fa54c4f1b82349b1a8f2ab91f67f2325 [2021-11-23 17:19:54,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:54,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:54,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:54,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:54,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:54,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78fd370d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54, skipping insertion in model container [2021-11-23 17:19:54,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:54,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:54,566 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_5b15eb80-bb7f-4233-a863-dacf511abea6/sv-benchmarks/c/list-properties/list_flag-1.i[23375,23388] [2021-11-23 17:19:54,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:54,582 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:54,638 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_5b15eb80-bb7f-4233-a863-dacf511abea6/sv-benchmarks/c/list-properties/list_flag-1.i[23375,23388] [2021-11-23 17:19:54,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:54,699 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:54,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54 WrapperNode [2021-11-23 17:19:54,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:54,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:54,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:54,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:54,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,750 INFO L137 Inliner]: procedures = 124, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2021-11-23 17:19:54,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:54,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:54,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:54,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:54,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:54,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:54,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:54,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:54,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:54,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:54,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:54,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:54,901 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 17:19:54,902 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 17:19:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:19:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:19:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:19:54,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:19:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:19:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:19:54,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:54,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:55,033 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:55,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:19:55,045 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:19:55,051 INFO L158 Benchmark]: Toolchain (without parser) took 954.75ms. Allocated memory is still 102.8MB. Free memory was 69.6MB in the beginning and 59.1MB in the end (delta: 10.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:55,052 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory was 58.8MB in the beginning and 58.7MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:55,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.00ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 69.3MB in the end (delta: 74.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:19:55,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.90ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:55,057 INFO L158 Benchmark]: Boogie Preprocessor took 51.45ms. Allocated memory is still 102.8MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:55,058 INFO L158 Benchmark]: RCFGBuilder took 244.59ms. Allocated memory is still 102.8MB. Free memory was 65.9MB in the beginning and 59.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:19:55,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory was 58.8MB in the beginning and 58.7MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.00ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 69.3MB in the end (delta: 74.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.90ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.45ms. Allocated memory is still 102.8MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 244.59ms. Allocated memory is still 102.8MB. Free memory was 65.9MB in the beginning and 59.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:19:55,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:57,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:57,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:57,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:57,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:57,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:57,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:57,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:57,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:57,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:57,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:57,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:57,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:57,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:57,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:57,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:57,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:57,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:57,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:57,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:57,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:57,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:57,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:57,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:57,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:57,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:57,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:57,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:57,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:57,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:57,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:57,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:57,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:57,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:57,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:57,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:57,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:57,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:57,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:57,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:57,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:57,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2021-11-23 17:19:57,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:57,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:57,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:57,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:57,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:57,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:57,862 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:57,862 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:57,862 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:57,862 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:57,864 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:57,864 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:57,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:19:57,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:19:57,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:57,866 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:57,867 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:19:57,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:19:57,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:57,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:57,868 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:19:57,868 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:19:57,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:57,868 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:19:57,869 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:19:57,869 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:19:57,869 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:57,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:57,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:57,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:19:57,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:57,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:57,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:57,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:57,872 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:19:57,872 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:19:57,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:57,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:57,873 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_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b [2021-11-23 17:19:58,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:58,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:58,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:58,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:58,372 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:58,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-properties/list_flag-1.i [2021-11-23 17:19:58,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/18351bbf2/ea572a49d42344bbaa6f29d68725ea00/FLAG1be78b760 [2021-11-23 17:19:58,988 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:58,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/sv-benchmarks/c/list-properties/list_flag-1.i [2021-11-23 17:19:59,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/18351bbf2/ea572a49d42344bbaa6f29d68725ea00/FLAG1be78b760 [2021-11-23 17:19:59,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/data/18351bbf2/ea572a49d42344bbaa6f29d68725ea00 [2021-11-23 17:19:59,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:59,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:59,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:59,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:59,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:59,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93f1696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59, skipping insertion in model container [2021-11-23 17:19:59,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:59,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:59,720 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_5b15eb80-bb7f-4233-a863-dacf511abea6/sv-benchmarks/c/list-properties/list_flag-1.i[23375,23388] [2021-11-23 17:19:59,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:59,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:59,774 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_5b15eb80-bb7f-4233-a863-dacf511abea6/sv-benchmarks/c/list-properties/list_flag-1.i[23375,23388] [2021-11-23 17:19:59,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:59,810 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:59,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59 WrapperNode [2021-11-23 17:19:59,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:59,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:59,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:59,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:59,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,857 INFO L137 Inliner]: procedures = 127, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2021-11-23 17:19:59,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:59,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:59,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:59,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:59,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:59,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:59,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:59,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:59,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:59" (1/1) ... [2021-11-23 17:19:59,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:59,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:20:00,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:20:00,019 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 17:20:00,020 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 17:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:20:00,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:20:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:20:00,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:20:00,154 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:20:00,156 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:00,165 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:20:00,169 INFO L158 Benchmark]: Toolchain (without parser) took 875.09ms. Allocated memory is still 67.1MB. Free memory was 45.4MB in the beginning and 32.1MB in the end (delta: 13.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-11-23 17:20:00,170 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:20:00,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.25ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 42.6MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:20:00,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 40.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:00,173 INFO L158 Benchmark]: Boogie Preprocessor took 58.23ms. Allocated memory is still 67.1MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:00,174 INFO L158 Benchmark]: RCFGBuilder took 249.80ms. Allocated memory is still 67.1MB. Free memory was 38.9MB in the beginning and 32.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:20:00,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.25ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 42.6MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 40.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.23ms. Allocated memory is still 67.1MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 249.80ms. Allocated memory is still 67.1MB. Free memory was 38.9MB in the beginning and 32.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:20:00,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b15eb80-bb7f-4233-a863-dacf511abea6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable