./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/tree_del_iter.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/tree_del_iter.c -s /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c8729548bcb4cc041a874d058be135e319479e3 ........................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/tree_del_iter.c -s /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c8729548bcb4cc041a874d058be135e319479e3 .......................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: cannot convert to CFunction --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:25,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:25,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:25,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:25,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:25,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:25,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:25,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:25,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:25,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:25,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:25,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:25,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:25,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:25,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:25,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:25,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:25,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:25,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:25,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:25,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:25,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:25,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:25,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:25,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:25,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:25,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:25,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:25,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:25,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:25,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:25,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:25,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:25,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:25,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:25,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:25,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:25,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:25,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:25,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:25,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:25,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:25,833 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:25,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:25,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:25,834 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:25,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:25,834 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:25,835 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:25,835 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:25,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:25,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:25,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:25,836 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:25,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:25,836 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:25,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:25,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:25,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:25,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:25,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:25,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:25,838 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:25,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:25,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:25,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:25,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:25,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:25,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:25,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:25,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:25,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:25,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:25,840 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:25,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:25,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:25,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:25,841 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan 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(__VERIFIER_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 -> 4c8729548bcb4cc041a874d058be135e319479e3 [2019-10-22 11:22:25,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:25,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:25,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:25,889 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:25,890 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:25,890 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/../../sv-benchmarks/c/verifythis/tree_del_iter.c [2019-10-22 11:22:25,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/48222a19f/2c80ea58789841d087c4843398a1f22e/FLAGd9ea94cf2 [2019-10-22 11:22:26,316 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:26,316 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/sv-benchmarks/c/verifythis/tree_del_iter.c [2019-10-22 11:22:26,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/48222a19f/2c80ea58789841d087c4843398a1f22e/FLAGd9ea94cf2 [2019-10-22 11:22:26,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/48222a19f/2c80ea58789841d087c4843398a1f22e [2019-10-22 11:22:26,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:26,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:26,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:26,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:26,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:26,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:26" (1/1) ... [2019-10-22 11:22:26,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46907422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:26, skipping insertion in model container [2019-10-22 11:22:26,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:26" (1/1) ... [2019-10-22 11:22:26,348 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:26,370 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:26,563 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: cannot convert to CFunction at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.performImplicitConversion(ExpressionResultTransformer.java:704) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.makeAssignment(CHandler.java:2422) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:677) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:906) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2176) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:22:26,567 INFO L168 Benchmark]: Toolchain (without parser) took 230.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -206.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:26,567 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:26,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -206.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:26,570 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 228.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -206.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: cannot convert to CFunction de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: cannot convert to CFunction: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.performImplicitConversion(ExpressionResultTransformer.java:704) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:28,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:28,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:28,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:28,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:28,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:28,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:28,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:28,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:28,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:28,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:28,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:28,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:28,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:28,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:28,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:28,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:28,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:28,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:28,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:28,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:28,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:28,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:28,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:28,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:28,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:28,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:28,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:28,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:28,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:28,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:28,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:28,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:28,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:28,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:28,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:28,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:28,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:28,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:28,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:28,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:28,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:28,421 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:28,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:28,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:28,422 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:28,423 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:28,423 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:28,423 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:28,423 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:28,423 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:28,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:28,424 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:28,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:28,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:28,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:28,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:28,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:28,425 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:28,425 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:28,425 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:28,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:28,425 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:28,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:28,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:28,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:28,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:28,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:28,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:28,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:28,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:28,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:28,427 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:28,427 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:28,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:28,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:28,428 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan 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(__VERIFIER_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 -> 4c8729548bcb4cc041a874d058be135e319479e3 [2019-10-22 11:22:28,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:28,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:28,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:28,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:28,471 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:28,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/../../sv-benchmarks/c/verifythis/tree_del_iter.c [2019-10-22 11:22:28,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/36b8deae3/fe5e632c50e84bdaa1f12ed6276ecd7f/FLAG15f0c63bf [2019-10-22 11:22:28,917 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:28,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/sv-benchmarks/c/verifythis/tree_del_iter.c [2019-10-22 11:22:28,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/36b8deae3/fe5e632c50e84bdaa1f12ed6276ecd7f/FLAG15f0c63bf [2019-10-22 11:22:29,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_79e2bebc-3865-48bf-b2ac-52e141a8995c/bin/utaipan/data/36b8deae3/fe5e632c50e84bdaa1f12ed6276ecd7f [2019-10-22 11:22:29,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:29,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:29,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:29,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:29,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:29,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:29" (1/1) ... [2019-10-22 11:22:29,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1793d380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:29, skipping insertion in model container [2019-10-22 11:22:29,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:29" (1/1) ... [2019-10-22 11:22:29,333 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:29,350 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:29,518 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: cannot convert to CFunction at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.performImplicitConversion(ExpressionResultTransformer.java:704) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.makeAssignment(CHandler.java:2422) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:677) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:906) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2176) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:22:29,522 INFO L168 Benchmark]: Toolchain (without parser) took 202.41 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:29,523 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:29,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:29,527 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 199.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: cannot convert to CFunction de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: cannot convert to CFunction: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.performImplicitConversion(ExpressionResultTransformer.java:704) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...