./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 025d5a27 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/verifythis/tree_del_iter.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9186562caa2aa3b429c14af504cbc4d63c10baa7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/verifythis/tree_del_iter.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9186562caa2aa3b429c14af504cbc4d63c10baa7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: cannot convert to CFunction --- Real Ultimate output --- This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:05:04,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:05:04,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:05:04,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:05:04,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:05:04,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:05:04,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:05:04,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:05:04,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:05:04,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:05:04,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:05:04,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:05:04,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:05:04,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:05:04,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:05:04,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:05:04,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:05:04,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:05:04,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:05:04,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:05:04,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:05:04,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:05:04,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:05:04,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:05:04,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:05:04,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:05:04,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:05:04,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:05:04,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:05:04,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:05:04,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:05:04,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:05:04,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:05:04,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:05:04,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:05:04,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:05:04,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:05:04,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:05:04,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:05:04,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:05:04,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:05:04,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-26 17:05:04,840 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:05:04,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:05:04,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:05:04,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:05:04,849 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:05:04,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:05:04,850 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:05:04,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:05:04,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:05:04,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:05:04,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 17:05:04,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:05:04,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 17:05:04,857 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:05:04,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 17:05:04,857 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:05:04,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 17:05:04,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:05:04,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:05:04,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:05:04,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:05:04,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:05:04,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:05:04,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:05:04,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 17:05:04,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 17:05:04,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 17:05:04,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 17:05:04,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 9186562caa2aa3b429c14af504cbc4d63c10baa7 [2019-11-26 17:05:05,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:05:05,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:05:05,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:05:05,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:05:05,482 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:05:05,483 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-26 17:05:05,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be8b41c93/baf5cb5ce2d740bfa3396191c3d26bb8/FLAGef21d5cf8 [2019-11-26 17:05:06,676 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:05:06,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-26 17:05:06,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be8b41c93/baf5cb5ce2d740bfa3396191c3d26bb8/FLAGef21d5cf8 [2019-11-26 17:05:06,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be8b41c93/baf5cb5ce2d740bfa3396191c3d26bb8 [2019-11-26 17:05:06,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:05:06,744 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 17:05:06,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:05:06,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:05:06,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:05:06,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:05:06" (1/1) ... [2019-11-26 17:05:06,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611e8f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:05:06, skipping insertion in model container [2019-11-26 17:05:06,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:05:06" (1/1) ... [2019-11-26 17:05:06,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:05:06,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:05:07,299 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:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.makeAssignment(CHandler.java:2545) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:709) 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:1337) 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:1030) 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:1408) 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:3484) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:572) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 17:05:07,324 INFO L168 Benchmark]: Toolchain (without parser) took 562.12 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:05:07,326 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:05:07,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.65 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:05:07,331 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 549.65 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 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:706) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:05:11,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:05:11,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:05:11,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:05:11,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:05:11,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:05:11,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:05:11,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:05:11,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:05:11,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:05:11,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:05:11,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:05:11,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:05:11,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:05:11,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:05:11,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:05:11,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:05:11,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:05:11,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:05:11,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:05:11,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:05:11,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:05:11,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:05:11,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:05:11,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:05:11,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:05:11,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:05:11,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:05:11,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:05:11,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:05:11,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:05:11,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:05:11,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:05:11,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:05:11,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:05:11,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:05:11,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:05:11,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:05:11,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:05:11,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:05:11,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:05:11,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-26 17:05:11,553 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:05:11,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:05:11,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:05:11,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:05:11,568 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:05:11,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:05:11,569 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:05:11,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:05:11,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:05:11,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 17:05:11,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:05:11,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 17:05:11,577 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 17:05:11,577 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 17:05:11,578 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:05:11,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 17:05:11,578 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:05:11,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 17:05:11,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:05:11,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:05:11,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:05:11,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:05:11,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:05:11,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:05:11,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:05:11,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 17:05:11,586 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 17:05:11,589 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 17:05:11,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 17:05:11,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 17:05:11,592 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 9186562caa2aa3b429c14af504cbc4d63c10baa7 [2019-11-26 17:05:12,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:05:12,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:05:12,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:05:12,221 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:05:12,224 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:05:12,226 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-26 17:05:12,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42bed36ff/c6eae34e37ca472c80f1a4312e7a1ecd/FLAG27f252c83 [2019-11-26 17:05:13,500 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:05:13,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2019-11-26 17:05:13,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42bed36ff/c6eae34e37ca472c80f1a4312e7a1ecd/FLAG27f252c83 [2019-11-26 17:05:13,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42bed36ff/c6eae34e37ca472c80f1a4312e7a1ecd [2019-11-26 17:05:13,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:05:13,580 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 17:05:13,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:05:13,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:05:13,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:05:13,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:05:13" (1/1) ... [2019-11-26 17:05:13,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3e2fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:05:13, skipping insertion in model container [2019-11-26 17:05:13,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:05:13" (1/1) ... [2019-11-26 17:05:13,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:05:13,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:05:14,180 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:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.makeAssignment(CHandler.java:2545) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:709) 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:1337) 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:1030) 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:1408) 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:3484) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:572) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 17:05:14,287 INFO L168 Benchmark]: Toolchain (without parser) took 612.01 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:05:14,293 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:05:14,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.87 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:05:14,296 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 603.87 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 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:706) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...