./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/tree_del_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c6eb4584 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_rec.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 b6f84946a23811384977e5b05138b0d070e3ef96 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_rec.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 b6f84946a23811384977e5b05138b0d070e3ef96 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-c6eb458-m [2019-11-16 21:25:50,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 21:25:50,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 21:25:50,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 21:25:50,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 21:25:50,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 21:25:50,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 21:25:50,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 21:25:50,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 21:25:50,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 21:25:50,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 21:25:50,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 21:25:50,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 21:25:50,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 21:25:50,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 21:25:50,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 21:25:50,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 21:25:50,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 21:25:50,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 21:25:50,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 21:25:50,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 21:25:50,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 21:25:50,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 21:25:50,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 21:25:50,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 21:25:50,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 21:25:50,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 21:25:50,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 21:25:50,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 21:25:50,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 21:25:50,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 21:25:50,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 21:25:50,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 21:25:50,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 21:25:50,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 21:25:50,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 21:25:50,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 21:25:50,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 21:25:50,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 21:25:50,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 21:25:50,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 21:25:50,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 21:25:50,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 21:25:50,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 21:25:50,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 21:25:50,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 21:25:50,938 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 21:25:50,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 21:25:50,938 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 21:25:50,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 21:25:50,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 21:25:50,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 21:25:50,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 21:25:50,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 21:25:50,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 21:25:50,941 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 21:25:50,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 21:25:50,941 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 21:25:50,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 21:25:50,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 21:25:50,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 21:25:50,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 21:25:50,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 21:25:50,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 21:25:50,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 21:25:50,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 21:25:50,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 21:25:50,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 21:25:50,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 21:25:50,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 21:25:50,947 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 -> b6f84946a23811384977e5b05138b0d070e3ef96 [2019-11-16 21:25:51,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 21:25:51,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 21:25:51,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 21:25:51,410 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 21:25:51,414 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 21:25:51,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-16 21:25:51,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9ebff5c/9e680f666f694cf0b46f346764bd940a/FLAG552aeb7d9 [2019-11-16 21:25:52,311 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 21:25:52,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-16 21:25:52,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9ebff5c/9e680f666f694cf0b46f346764bd940a/FLAG552aeb7d9 [2019-11-16 21:25:52,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9ebff5c/9e680f666f694cf0b46f346764bd940a [2019-11-16 21:25:52,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 21:25:52,605 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-16 21:25:52,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 21:25:52,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 21:25:52,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 21:25:52,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:25:52" (1/1) ... [2019-11-16 21:25:52,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4710345a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:52, skipping insertion in model container [2019-11-16 21:25:52,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:25:52" (1/1) ... [2019-11-16 21:25:52,630 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 21:25:52,659 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 21:25:52,955 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.visit(CHandler.java:1432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-16 21:25:52,980 INFO L168 Benchmark]: Toolchain (without parser) took 370.62 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 955.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 12.5 GB. [2019-11-16 21:25:52,983 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 21:25:52,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.04 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 955.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 12.5 GB. [2019-11-16 21:25:52,987 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 362.04 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 955.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 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:704) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-c6eb458-m [2019-11-16 21:25:55,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 21:25:55,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 21:25:55,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 21:25:55,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 21:25:55,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 21:25:55,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 21:25:55,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 21:25:55,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 21:25:55,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 21:25:55,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 21:25:55,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 21:25:55,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 21:25:55,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 21:25:55,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 21:25:55,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 21:25:55,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 21:25:55,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 21:25:55,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 21:25:55,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 21:25:55,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 21:25:55,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 21:25:55,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 21:25:55,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 21:25:55,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 21:25:55,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 21:25:55,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 21:25:55,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 21:25:55,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 21:25:55,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 21:25:55,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 21:25:55,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 21:25:55,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 21:25:55,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 21:25:55,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 21:25:55,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 21:25:55,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 21:25:55,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 21:25:55,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 21:25:55,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 21:25:55,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 21:25:55,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 21:25:55,951 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 21:25:55,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 21:25:55,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 21:25:55,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 21:25:55,956 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 21:25:55,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 21:25:55,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 21:25:55,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 21:25:55,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 21:25:55,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 21:25:55,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 21:25:55,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 21:25:55,961 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 21:25:55,961 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 21:25:55,961 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 21:25:55,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 21:25:55,962 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 21:25:55,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 21:25:55,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 21:25:55,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 21:25:55,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 21:25:55,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 21:25:55,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 21:25:55,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 21:25:55,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 21:25:55,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 21:25:55,968 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 21:25:55,968 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 21:25:55,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 21:25:55,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 21:25:55,970 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 -> b6f84946a23811384977e5b05138b0d070e3ef96 [2019-11-16 21:25:56,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 21:25:56,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 21:25:56,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 21:25:56,468 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 21:25:56,470 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 21:25:56,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-16 21:25:56,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247e61c63/400af335dd0342d7936f925f8327cb66/FLAG378134fc4 [2019-11-16 21:25:57,338 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 21:25:57,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-16 21:25:57,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247e61c63/400af335dd0342d7936f925f8327cb66/FLAG378134fc4 [2019-11-16 21:25:57,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247e61c63/400af335dd0342d7936f925f8327cb66 [2019-11-16 21:25:57,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 21:25:57,617 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-16 21:25:57,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 21:25:57,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 21:25:57,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 21:25:57,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:25:57" (1/1) ... [2019-11-16 21:25:57,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9e112b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:57, skipping insertion in model container [2019-11-16 21:25:57,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:25:57" (1/1) ... [2019-11-16 21:25:57,643 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 21:25:57,681 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 21:25:58,025 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.visit(CHandler.java:1432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-16 21:25:58,042 INFO L168 Benchmark]: Toolchain (without parser) took 419.03 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. [2019-11-16 21:25:58,043 INFO L168 Benchmark]: CDTParser took 1.66 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 21:25:58,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.34 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. [2019-11-16 21:25:58,049 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.66 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 410.34 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 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:704) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...