./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext-properties/list-ext.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_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/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_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext-properties/list-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75539a96800eea0d91d3dad14f0ad356c5f8079fa4f6dcf5bbfcb193296a44a8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:38,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:38,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:38,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:38,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:38,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:38,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:38,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:38,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:38,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:38,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:38,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:38,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:38,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:38,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:38,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:38,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:38,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:38,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:38,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:38,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:38,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:38,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:38,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:38,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:38,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:38,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:38,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:38,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:38,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:38,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:38,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:38,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:38,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:38,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:38,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:38,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:38,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:38,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:38,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:38,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:38,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:22:38,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:38,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:38,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:38,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:38,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:38,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:38,779 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:38,779 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:38,779 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:38,780 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:22:38,781 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:38,781 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:38,782 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:22:38,782 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:22:38,782 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:38,783 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:22:38,783 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:22:38,783 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:22:38,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:38,785 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:38,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:22:38,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:38,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:38,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:38,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:38,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:38,789 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:38,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:38,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:38,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:38,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:38,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:38,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:38,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:38,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:38,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:38,792 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:22:38,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:22:38,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:38,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:38,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:38,794 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_26562fcc-f056-4c9f-a2be-eae035b0927d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75539a96800eea0d91d3dad14f0ad356c5f8079fa4f6dcf5bbfcb193296a44a8 [2021-11-23 17:22:39,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:39,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:39,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:39,181 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:39,182 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:39,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-ext-properties/list-ext.i [2021-11-23 17:22:39,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/d8f43c113/e979ebd52c574239ba1d17d94f1cef48/FLAGb5a64de67 [2021-11-23 17:22:39,892 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:39,893 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/sv-benchmarks/c/list-ext-properties/list-ext.i [2021-11-23 17:22:39,911 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/d8f43c113/e979ebd52c574239ba1d17d94f1cef48/FLAGb5a64de67 [2021-11-23 17:22:40,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/d8f43c113/e979ebd52c574239ba1d17d94f1cef48 [2021-11-23 17:22:40,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:40,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:40,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:40,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:40,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:40,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:40,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e77dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40, skipping insertion in model container [2021-11-23 17:22:40,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:40,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:40,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:40,725 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_26562fcc-f056-4c9f-a2be-eae035b0927d/sv-benchmarks/c/list-ext-properties/list-ext.i[23551,23564] [2021-11-23 17:22:40,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:40,760 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:40,832 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_26562fcc-f056-4c9f-a2be-eae035b0927d/sv-benchmarks/c/list-ext-properties/list-ext.i[23551,23564] [2021-11-23 17:22:40,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:40,882 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:40,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40 WrapperNode [2021-11-23 17:22:40,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:40,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:40,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:40,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:40,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:40,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:40,976 INFO L137 Inliner]: procedures = 124, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 122 [2021-11-23 17:22:40,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:40,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:40,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:40,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:40,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:40,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:40,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:41,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:41,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:41,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:41,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:41,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:41,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:41,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:41,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:41,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:40" (1/1) ... [2021-11-23 17:22:41,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:41,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:41,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:41,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 17:22:41,118 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 17:22:41,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:22:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:22:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:22:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:22:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:22:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:22:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:22:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:41,261 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:41,263 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:41,273 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:22:41,279 INFO L158 Benchmark]: Toolchain (without parser) took 1042.08ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 48.1MB in the beginning and 61.6MB in the end (delta: -13.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-11-23 17:22:41,280 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 66.0MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:41,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.59ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.9MB in the beginning and 72.5MB in the end (delta: -24.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:22:41,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.78ms. Allocated memory is still 104.9MB. Free memory was 72.5MB in the beginning and 70.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:41,283 INFO L158 Benchmark]: Boogie Preprocessor took 37.80ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:41,284 INFO L158 Benchmark]: RCFGBuilder took 259.36ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 61.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:22:41,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 66.0MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.59ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.9MB in the beginning and 72.5MB in the end (delta: -24.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.78ms. Allocated memory is still 104.9MB. Free memory was 72.5MB in the beginning and 70.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.80ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 259.36ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 61.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:22:41,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/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_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/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_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext-properties/list-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75539a96800eea0d91d3dad14f0ad356c5f8079fa4f6dcf5bbfcb193296a44a8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:44,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:44,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:44,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:44,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:44,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:44,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:44,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:44,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:44,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:44,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:44,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:44,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:44,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:44,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:44,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:44,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:44,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:44,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:44,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:44,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:44,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:44,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:44,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:44,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:44,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:44,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:44,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:44,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:44,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:44,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:44,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:44,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:44,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:44,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:44,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:44,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:44,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:44,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:44,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:44,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:44,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:22:44,482 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:44,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:44,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:44,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:44,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:44,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:44,486 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:44,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:44,486 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:44,487 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:44,488 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:44,488 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:44,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:44,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:44,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:44,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:44,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:44,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:44,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:44,493 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:22:44,493 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:22:44,493 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:22:44,494 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:44,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:44,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:44,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:44,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:44,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:22:44,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:44,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:44,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:44,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:44,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:44,497 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:22:44,498 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:22:44,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:44,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:44,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:44,499 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_26562fcc-f056-4c9f-a2be-eae035b0927d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75539a96800eea0d91d3dad14f0ad356c5f8079fa4f6dcf5bbfcb193296a44a8 [2021-11-23 17:22:45,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:45,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:45,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:45,070 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:45,070 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:45,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-ext-properties/list-ext.i [2021-11-23 17:22:45,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/b0c08eb5b/8d525925519341bc94e4dae64adc9a95/FLAG91fab5919 [2021-11-23 17:22:45,838 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:45,839 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/sv-benchmarks/c/list-ext-properties/list-ext.i [2021-11-23 17:22:45,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/b0c08eb5b/8d525925519341bc94e4dae64adc9a95/FLAG91fab5919 [2021-11-23 17:22:46,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/data/b0c08eb5b/8d525925519341bc94e4dae64adc9a95 [2021-11-23 17:22:46,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:46,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:46,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:46,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:46,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:46,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:46,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5513198e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46, skipping insertion in model container [2021-11-23 17:22:46,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:46,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:46,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:46,759 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_26562fcc-f056-4c9f-a2be-eae035b0927d/sv-benchmarks/c/list-ext-properties/list-ext.i[23551,23564] [2021-11-23 17:22:46,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:46,791 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:46,872 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_26562fcc-f056-4c9f-a2be-eae035b0927d/sv-benchmarks/c/list-ext-properties/list-ext.i[23551,23564] [2021-11-23 17:22:46,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:46,924 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:46,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46 WrapperNode [2021-11-23 17:22:46,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:46,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:46,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:46,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:46,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:46,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,024 INFO L137 Inliner]: procedures = 127, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 111 [2021-11-23 17:22:47,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:47,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:47,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:47,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:47,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:47,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:47,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:47,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:47,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:46" (1/1) ... [2021-11-23 17:22:47,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:47,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:47,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:47,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 17:22:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 17:22:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:22:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:22:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:22:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:22:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:22:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:22:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:22:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:47,367 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:47,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:47,380 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:22:47,385 INFO L158 Benchmark]: Toolchain (without parser) took 1307.92ms. Allocated memory is still 86.0MB. Free memory was 49.3MB in the beginning and 50.3MB in the end (delta: -974.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:47,386 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:47,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 834.93ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 61.2MB in the end (delta: -12.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-11-23 17:22:47,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.31ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:47,392 INFO L158 Benchmark]: Boogie Preprocessor took 68.05ms. Allocated memory is still 86.0MB. Free memory was 59.1MB in the beginning and 57.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:47,393 INFO L158 Benchmark]: RCFGBuilder took 286.50ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 50.3MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:22:47,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 834.93ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 61.2MB in the end (delta: -12.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.31ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.05ms. Allocated memory is still 86.0MB. Free memory was 59.1MB in the beginning and 57.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.50ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 50.3MB in the end (delta: 7.1MB). 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 17:22:47,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26562fcc-f056-4c9f-a2be-eae035b0927d/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable