./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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 073ee5c5f9e0a51509973bbde311a97e7673effbb0d5db6a027ba4e786762a02 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:00:58,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:00:58,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:00:58,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:00:58,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:00:58,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:00:58,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:00:58,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:00:58,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:00:58,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:00:58,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:00:58,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:00:58,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:00:58,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:00:58,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:00:58,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:00:58,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:00:58,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:00:58,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:00:58,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:00:58,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:00:58,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:00:58,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:00:58,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:00:58,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:00:58,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:00:58,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:00:58,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:00:58,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:00:58,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:00:58,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:00:58,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:00:58,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:00:58,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:00:58,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:00:58,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:00:58,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:00:58,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:00:58,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:00:58,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:00:58,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:00:58,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:00:59,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:00:59,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:00:59,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:00:59,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:00:59,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:00:59,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:00:59,020 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:00:59,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:00:59,020 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:00:59,020 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:00:59,022 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:00:59,022 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:00:59,022 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:00:59,022 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:00:59,023 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:00:59,023 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:00:59,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:00:59,023 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:00:59,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:00:59,024 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:00:59,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:00:59,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:00:59,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:00:59,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:00:59,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:00:59,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:00:59,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:00:59,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:00:59,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:00:59,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:00:59,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:00:59,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:00:59,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:59,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:00:59,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:00:59,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:00:59,030 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:00:59,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:00:59,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:00:59,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:00:59,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:00:59,032 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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 073ee5c5f9e0a51509973bbde311a97e7673effbb0d5db6a027ba4e786762a02 [2021-11-23 17:00:59,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:00:59,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:00:59,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:00:59,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:00:59,395 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:00:59,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2021-11-23 17:00:59,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/7f8633e5c/eb74aa5e3ef841c3a9154234e7ffd32d/FLAG5dc7b260b [2021-11-23 17:01:00,067 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:00,067 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2021-11-23 17:01:00,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/7f8633e5c/eb74aa5e3ef841c3a9154234e7ffd32d/FLAG5dc7b260b [2021-11-23 17:01:00,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/7f8633e5c/eb74aa5e3ef841c3a9154234e7ffd32d [2021-11-23 17:01:00,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:00,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:00,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:00,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:00,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:00,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665b2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00, skipping insertion in model container [2021-11-23 17:01:00,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:00,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:00,724 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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2021-11-23 17:01:00,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:00,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:00,779 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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2021-11-23 17:01:00,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:00,810 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:00,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00 WrapperNode [2021-11-23 17:01:00,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:00,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:00,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:00,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:00,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,867 INFO L137 Inliner]: procedures = 122, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 205 [2021-11-23 17:01:00,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:00,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:00,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:00,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:00,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:00,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:00,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:00,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:00,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:00" (1/1) ... [2021-11-23 17:01:00,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:00,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:01,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 17:01:01,055 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 17:01:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:01:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:01:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:01:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:01:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:01:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:01:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:01:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:01,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:01,196 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:01,197 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:01,206 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:01:01,211 INFO L158 Benchmark]: Toolchain (without parser) took 842.22ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 58.8MB in the end (delta: 12.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-23 17:01:01,211 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:01,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.03ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 70.1MB in the end (delta: 484.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:01:01,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.02ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 67.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:01:01,214 INFO L158 Benchmark]: Boogie Preprocessor took 83.00ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:01,215 INFO L158 Benchmark]: RCFGBuilder took 255.79ms. Allocated memory is still 104.9MB. Free memory was 65.5MB in the beginning and 58.8MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:01:01,219 INFO L339 ainManager$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 104.9MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.03ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 70.1MB in the end (delta: 484.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.02ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 67.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.00ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.79ms. Allocated memory is still 104.9MB. Free memory was 65.5MB in the beginning and 58.8MB in the end (delta: 6.7MB). 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 17:01:01,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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 073ee5c5f9e0a51509973bbde311a97e7673effbb0d5db6a027ba4e786762a02 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:03,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:03,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:03,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:03,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:03,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:03,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:03,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:03,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:03,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:03,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:03,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:03,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:03,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:03,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:03,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:03,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:03,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:03,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:03,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:03,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:03,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:03,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:03,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:03,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:03,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:03,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:03,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:03,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:03,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:03,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:03,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:03,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:03,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:03,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:03,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:03,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:03,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:03,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:03,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:03,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:03,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:01:03,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:03,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:03,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:03,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:03,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:03,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:03,899 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:03,899 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:03,900 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:03,900 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:03,901 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:03,902 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:03,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:03,904 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:03,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:03,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:03,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:03,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:03,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:03,905 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:01:03,905 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:01:03,905 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:01:03,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:03,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:03,906 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:03,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:03,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:03,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:01:03,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:03,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:03,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:03,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:03,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:03,909 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:01:03,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:01:03,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:03,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:03,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:03,922 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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 073ee5c5f9e0a51509973bbde311a97e7673effbb0d5db6a027ba4e786762a02 [2021-11-23 17:01:04,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:04,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:04,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:04,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:04,334 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:04,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2021-11-23 17:01:04,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/aa4af815c/5da3bff0056643eb984fe490cee42f3e/FLAGaa3a90864 [2021-11-23 17:01:04,965 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:04,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i [2021-11-23 17:01:04,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/aa4af815c/5da3bff0056643eb984fe490cee42f3e/FLAGaa3a90864 [2021-11-23 17:01:05,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/data/aa4af815c/5da3bff0056643eb984fe490cee42f3e [2021-11-23 17:01:05,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:05,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:05,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:05,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:05,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:05,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1819b61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05, skipping insertion in model container [2021-11-23 17:01:05,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:05,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:05,655 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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2021-11-23 17:01:05,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:05,672 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:05,716 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_2f77f1eb-4329-40cb-bf0d-b531be1c438d/sv-benchmarks/c/list-ext2-properties/list_and_tree_cnstr-2.i[24291,24304] [2021-11-23 17:01:05,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:05,750 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:05,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05 WrapperNode [2021-11-23 17:01:05,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:05,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:05,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:05,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:05,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,808 INFO L137 Inliner]: procedures = 125, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 190 [2021-11-23 17:01:05,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:05,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:05,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:05,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:05,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:05,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:05,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:05,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:05,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:05" (1/1) ... [2021-11-23 17:01:05,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:05,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:05,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:05,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 17:01:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 17:01:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:01:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:01:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:01:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:01:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:01:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:01:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:01:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:05,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:06,128 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:06,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:06,159 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:01:06,168 INFO L158 Benchmark]: Toolchain (without parser) took 903.07ms. Allocated memory is still 62.9MB. Free memory was 40.2MB in the beginning and 26.1MB in the end (delta: 14.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:06,169 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:06,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.86ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 37.7MB in the end (delta: 2.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:01:06,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.36ms. Allocated memory is still 62.9MB. Free memory was 37.7MB in the beginning and 35.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:01:06,171 INFO L158 Benchmark]: Boogie Preprocessor took 42.06ms. Allocated memory is still 62.9MB. Free memory was 35.3MB in the beginning and 32.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:06,174 INFO L158 Benchmark]: RCFGBuilder took 314.56ms. Allocated memory is still 62.9MB. Free memory was 32.9MB in the beginning and 26.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:01:06,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.86ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 37.7MB in the end (delta: 2.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.36ms. Allocated memory is still 62.9MB. Free memory was 37.7MB in the beginning and 35.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.06ms. Allocated memory is still 62.9MB. Free memory was 35.3MB in the beginning and 32.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 314.56ms. Allocated memory is still 62.9MB. Free memory was 32.9MB in the beginning and 26.1MB 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 17:01:06,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f77f1eb-4329-40cb-bf0d-b531be1c438d/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