./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/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 922bc5e57819a2e5059028ce62005da2daf2559b ............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/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 922bc5e57819a2e5059028ce62005da2daf2559b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:57:02,921 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:57:02,923 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:57:02,933 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:57:02,934 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:57:02,936 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:57:02,937 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:57:02,938 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:57:02,939 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:57:02,940 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:57:02,941 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:57:02,941 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:57:02,942 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:57:02,943 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:57:02,943 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:57:02,944 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:57:02,945 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:57:02,946 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:57:02,948 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:57:02,949 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:57:02,950 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:57:02,951 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:57:02,953 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:57:02,953 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:57:02,953 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:57:02,954 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:57:02,955 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:57:02,955 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:57:02,956 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:57:02,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:57:02,957 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:57:02,957 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:57:02,958 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:57:02,958 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:57:02,959 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:57:02,959 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:57:02,960 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:57:02,971 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:57:02,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:57:02,972 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:57:02,972 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:57:02,972 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:57:02,973 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:57:02,973 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:57:02,973 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:57:02,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:57:02,973 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:57:02,974 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:57:02,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:57:02,974 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:57:02,975 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:57:02,975 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:57:02,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:57:02,975 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:57:02,975 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:57:02,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:57:02,975 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:57:02,976 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:57:02,976 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:57:02,976 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:57:02,976 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:57:02,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:57:02,976 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:57:02,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:57:02,977 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:57:02,977 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:57:02,977 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:57:02,977 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:57:02,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:57:02,978 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:57:02,978 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:57:02,978 INFO L133 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_92952c64-d677-4b03-819a-089492d9e453/bin-2019/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 -> 922bc5e57819a2e5059028ce62005da2daf2559b [2018-10-26 21:57:03,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:57:03,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:57:03,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:57:03,028 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:57:03,028 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:57:03,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i [2018-10-26 21:57:03,096 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/0daccfa20/bf1d74a30db74a3bae18818cf8a6a45d/FLAG8819f0948 [2018-10-26 21:57:03,466 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:57:03,467 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i [2018-10-26 21:57:03,472 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/0daccfa20/bf1d74a30db74a3bae18818cf8a6a45d/FLAG8819f0948 [2018-10-26 21:57:03,484 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/0daccfa20/bf1d74a30db74a3bae18818cf8a6a45d [2018-10-26 21:57:03,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:57:03,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:57:03,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:57:03,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:57:03,493 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:57:03,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:57:03" (1/1) ... [2018-10-26 21:57:03,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14956367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:03, skipping insertion in model container [2018-10-26 21:57:03,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:57:03" (1/1) ... [2018-10-26 21:57:03,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:57:03,527 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:57:03,665 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:57:03,668 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:57:03,681 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueInteger(TypeSizes.java:391) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:335) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.extractSizeTValue(TypeSizeAndOffsetComputer.java:317) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValue_Array(TypeSizeAndOffsetComputer.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:200) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructBytesizeExpression(TypeSizeAndOffsetComputer.java:120) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.calculateSizeOf(MemoryHandler.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.getMallocCall(MemoryHandler.java:514) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1876) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1011) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:318) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:364) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:287) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:537) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:228) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-26 21:57:03,684 INFO L168 Benchmark]: Toolchain (without parser) took 196.50 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:03,686 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:57:03,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:03,689 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:57:05,591 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:57:05,593 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:57:05,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:57:05,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:57:05,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:57:05,604 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:57:05,606 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:57:05,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:57:05,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:57:05,609 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:57:05,609 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:57:05,610 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:57:05,610 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:57:05,611 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:57:05,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:57:05,612 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:57:05,614 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:57:05,615 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:57:05,616 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:57:05,617 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:57:05,618 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:57:05,620 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:57:05,620 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:57:05,620 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:57:05,621 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:57:05,622 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:57:05,623 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:57:05,623 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:57:05,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:57:05,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:57:05,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:57:05,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:57:05,625 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:57:05,626 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:57:05,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:57:05,627 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 21:57:05,642 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:57:05,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:57:05,643 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:57:05,644 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:57:05,644 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:57:05,644 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:57:05,644 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:57:05,644 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:57:05,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:57:05,645 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:57:05,645 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:57:05,645 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:57:05,645 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:57:05,645 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:57:05,646 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:57:05,646 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 21:57:05,646 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 21:57:05,646 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:57:05,649 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:57:05,649 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:57:05,649 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:57:05,649 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:57:05,649 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:57:05,649 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:57:05,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:57:05,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:57:05,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:57:05,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:57:05,650 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 21:57:05,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:57:05,651 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 21:57:05,651 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 21:57:05,651 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_92952c64-d677-4b03-819a-089492d9e453/bin-2019/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 -> 922bc5e57819a2e5059028ce62005da2daf2559b [2018-10-26 21:57:05,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:57:05,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:57:05,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:57:05,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:57:05,703 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:57:05,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i [2018-10-26 21:57:05,748 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/e79a8bf5d/9511831959a04249a9af5683dae01f13/FLAGc7105375c [2018-10-26 21:57:06,159 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:57:06,161 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i [2018-10-26 21:57:06,168 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/e79a8bf5d/9511831959a04249a9af5683dae01f13/FLAGc7105375c [2018-10-26 21:57:06,186 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/data/e79a8bf5d/9511831959a04249a9af5683dae01f13 [2018-10-26 21:57:06,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:57:06,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:57:06,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:57:06,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:57:06,201 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:57:06,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f662ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06, skipping insertion in model container [2018-10-26 21:57:06,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:57:06,241 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:57:06,400 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:57:06,403 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:57:06,423 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:57:06,442 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:57:06,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06 WrapperNode [2018-10-26 21:57:06,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:57:06,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:57:06,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:57:06,444 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:57:06,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:57:06,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:57:06,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:57:06,480 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:57:06,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... [2018-10-26 21:57:06,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:57:06,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:57:06,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:57:06,506 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:57:06,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:57:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:57:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:57:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:57:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:57:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:57:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:57:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 21:57:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 21:57:07,024 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:57:07,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:57:07 BoogieIcfgContainer [2018-10-26 21:57:07,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:57:07,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:57:07,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:57:07,029 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:57:07,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:57:06" (1/3) ... [2018-10-26 21:57:07,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7319c5a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:57:07, skipping insertion in model container [2018-10-26 21:57:07,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:06" (2/3) ... [2018-10-26 21:57:07,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7319c5a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:57:07, skipping insertion in model container [2018-10-26 21:57:07,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:57:07" (3/3) ... [2018-10-26 21:57:07,033 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call_true-termination.i [2018-10-26 21:57:07,042 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:57:07,049 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:57:07,062 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:57:07,082 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:57:07,083 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:57:07,083 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:57:07,083 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:57:07,083 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:57:07,083 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:57:07,084 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:57:07,084 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:57:07,084 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:57:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-26 21:57:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 21:57:07,107 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:57:07,108 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:57:07,110 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:57:07,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:57:07,116 INFO L82 PathProgramCache]: Analyzing trace with hash 296275345, now seen corresponding path program 1 times [2018-10-26 21:57:07,120 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 21:57:07,121 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 21:57:07,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:57:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:57:07,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:07,202 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 21:57:07,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:57:07,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 21:57:07,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 21:57:07,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 21:57:07,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:57:07,222 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-10-26 21:57:07,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:57:07,240 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-10-26 21:57:07,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 21:57:07,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-10-26 21:57:07,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:57:07,252 INFO L225 Difference]: With dead ends: 36 [2018-10-26 21:57:07,255 INFO L226 Difference]: Without dead ends: 16 [2018-10-26 21:57:07,258 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:57:07,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-26 21:57:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-26 21:57:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-26 21:57:07,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-10-26 21:57:07,295 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2018-10-26 21:57:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:57:07,295 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-10-26 21:57:07,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 21:57:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-10-26 21:57:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 21:57:07,296 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:57:07,296 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:57:07,296 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:57:07,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:57:07,297 INFO L82 PathProgramCache]: Analyzing trace with hash 665169549, now seen corresponding path program 1 times [2018-10-26 21:57:07,297 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 21:57:07,297 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 21:57:07,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:57:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:57:07,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:07,389 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (3)] Exception during sending of exit command (exit): Broken pipe [2018-10-26 21:57:07,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:57:07,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:57:07,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:57:07,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:57:07,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:57:07,396 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-10-26 21:57:07,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:57:07,445 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-10-26 21:57:07,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:57:07,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-26 21:57:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:57:07,447 INFO L225 Difference]: With dead ends: 26 [2018-10-26 21:57:07,447 INFO L226 Difference]: Without dead ends: 20 [2018-10-26 21:57:07,448 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:57:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-26 21:57:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-10-26 21:57:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-26 21:57:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-10-26 21:57:07,452 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-10-26 21:57:07,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:57:07,452 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-10-26 21:57:07,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:57:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-10-26 21:57:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:57:07,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:57:07,453 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:57:07,453 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:57:07,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:57:07,453 INFO L82 PathProgramCache]: Analyzing trace with hash 361632356, now seen corresponding path program 1 times [2018-10-26 21:57:07,454 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 21:57:07,454 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 21:57:07,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:57:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:57:07,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:07,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-10-26 21:57:07,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-26 21:57:07,731 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:07,759 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:07,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:07,861 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2018-10-26 21:57:08,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-26 21:57:08,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-26 21:57:08,023 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,044 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-10-26 21:57:08,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:08,287 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:57:08,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-10-26 21:57:08,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-10-26 21:57:08,519 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:08,526 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:08,532 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,533 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:14, output treesize:5 [2018-10-26 21:57:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:08,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:57:08,558 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:57:08,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:57:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:57:08,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:08,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-10-26 21:57:08,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-26 21:57:08,628 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,630 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,638 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,638 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2018-10-26 21:57:08,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-26 21:57:08,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-26 21:57:08,663 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,665 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,667 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-10-26 21:57:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:08,688 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:57:08,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-10-26 21:57:08,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-10-26 21:57:08,781 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:08,787 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:08,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:08,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:14, output treesize:5 [2018-10-26 21:57:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:08,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-10-26 21:57:08,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7, 8] total 13 [2018-10-26 21:57:08,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-26 21:57:08,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-26 21:57:08,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-10-26 21:57:08,825 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 13 states. [2018-10-26 21:57:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:57:09,048 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2018-10-26 21:57:09,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 21:57:09,048 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2018-10-26 21:57:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:57:09,049 INFO L225 Difference]: With dead ends: 29 [2018-10-26 21:57:09,049 INFO L226 Difference]: Without dead ends: 23 [2018-10-26 21:57:09,050 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-10-26 21:57:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-26 21:57:09,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-10-26 21:57:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-26 21:57:09,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-10-26 21:57:09,054 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 17 [2018-10-26 21:57:09,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:57:09,055 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-10-26 21:57:09,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-26 21:57:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-10-26 21:57:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:57:09,056 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:57:09,056 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:57:09,056 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:57:09,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:57:09,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1041690726, now seen corresponding path program 1 times [2018-10-26 21:57:09,057 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 21:57:09,057 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 21:57:09,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:57:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:57:09,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:09,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-26 21:57:09,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 21:57:09,178 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,187 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,270 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2018-10-26 21:57:09,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-10-26 21:57:09,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-10-26 21:57:09,488 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,494 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-10-26 21:57:09,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:09,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:57:09,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-10-26 21:57:09,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-10-26 21:57:09,717 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:09,741 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:09,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:5 [2018-10-26 21:57:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:09,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:57:09,783 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:57:09,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:57:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:57:09,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:09,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-26 21:57:09,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 21:57:09,834 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,836 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,853 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,853 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2018-10-26 21:57:09,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-10-26 21:57:09,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-10-26 21:57:09,879 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,890 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:09,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-10-26 21:57:09,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:09,917 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:57:09,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-10-26 21:57:09,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-10-26 21:57:09,949 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:10,002 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 21:57:10,013 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:57:10,013 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:18, output treesize:5 [2018-10-26 21:57:10,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:10,036 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-10-26 21:57:10,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 14 [2018-10-26 21:57:10,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-26 21:57:10,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-26 21:57:10,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-10-26 21:57:10,037 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 14 states. [2018-10-26 21:57:10,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:57:10,381 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2018-10-26 21:57:10,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 21:57:10,382 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2018-10-26 21:57:10,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:57:10,383 INFO L225 Difference]: With dead ends: 31 [2018-10-26 21:57:10,383 INFO L226 Difference]: Without dead ends: 25 [2018-10-26 21:57:10,383 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-10-26 21:57:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-26 21:57:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2018-10-26 21:57:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-26 21:57:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-10-26 21:57:10,387 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 17 [2018-10-26 21:57:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:57:10,388 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-10-26 21:57:10,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-26 21:57:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-10-26 21:57:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 21:57:10,388 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:57:10,388 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:57:10,389 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:57:10,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:57:10,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1315091131, now seen corresponding path program 2 times [2018-10-26 21:57:10,389 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 21:57:10,389 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 21:57:10,403 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-10-26 21:57:10,454 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 21:57:10,454 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 21:57:10,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:10,486 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:57:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:10,518 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:57:10,518 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:57:10,524 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 21:57:10,553 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 21:57:10,554 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 21:57:10,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:57:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:10,559 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:57:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:57:10,581 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-10-26 21:57:10,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4] total 6 [2018-10-26 21:57:10,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:57:10,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:57:10,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:57:10,582 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2018-10-26 21:57:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:57:10,599 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-10-26 21:57:10,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:57:10,601 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-26 21:57:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:57:10,601 INFO L225 Difference]: With dead ends: 22 [2018-10-26 21:57:10,601 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:57:10,602 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:57:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:57:10,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:57:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:57:10,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:57:10,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-26 21:57:10,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:57:10,603 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:57:10,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:57:10,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:57:10,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:57:10,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:57:10,851 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2018-10-26 21:57:10,870 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:57:10,870 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:57:10,870 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:57:10,870 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:57:10,870 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:57:10,871 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:57:10,871 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:57:10,871 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2018-10-26 21:57:10,871 INFO L421 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (.cse0 (= (_ bv0 32) |main_~#array~0.offset|))) (or (and (= main_~menor~0 |main_#t~mem5|) .cse0 (= main_~menor~0 .cse1)) (and (not (bvsle .cse1 main_~menor~0)) (not (bvsle |main_#t~mem5| main_~menor~0)) .cse0))) [2018-10-26 21:57:10,871 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-10-26 21:57:10,871 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2018-10-26 21:57:10,871 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2018-10-26 21:57:10,871 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-10-26 21:57:10,871 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-10-26 21:57:10,872 INFO L421 ceAbstractionStarter]: At program point L19-4(lines 19 24) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |main_~#array~0.offset|)) (.cse1 (= (bvadd main_~SIZE~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= main_~j~0 (_ bv0 32)) .cse0 .cse1) (and (and .cse0 (bvsge (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|) main_~menor~0)) (= (bvadd main_~j~0 (_ bv4294967295 32)) (_ bv0 32)) .cse1))) [2018-10-26 21:57:10,872 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 24) no Hoare annotation was computed. [2018-10-26 21:57:10,872 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2018-10-26 21:57:10,872 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 21:57:10,872 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 21:57:10,872 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 21:57:10,872 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 21:57:10,872 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 21:57:10,872 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 21:57:10,880 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 21:57:10,885 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 21:57:10,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:57:10 BoogieIcfgContainer [2018-10-26 21:57:10,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:57:10,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:57:10,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:57:10,888 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:57:10,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:57:07" (3/4) ... [2018-10-26 21:57:10,892 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:57:10,896 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:57:10,897 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:57:10,897 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 21:57:10,900 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-10-26 21:57:10,901 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-26 21:57:10,901 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 21:57:10,943 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_92952c64-d677-4b03-819a-089492d9e453/bin-2019/utaipan/witness.graphml [2018-10-26 21:57:10,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:57:10,944 INFO L168 Benchmark]: Toolchain (without parser) took 4754.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 954.6 MB in the beginning and 825.3 MB in the end (delta: 129.3 MB). Peak memory consumption was 220.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:10,945 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:57:10,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.32 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 942.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:10,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:10,946 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:57:10,948 INFO L168 Benchmark]: RCFGBuilder took 518.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:10,948 INFO L168 Benchmark]: TraceAbstraction took 3862.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 832.4 MB in the end (delta: 234.2 MB). Peak memory consumption was 234.2 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:10,949 INFO L168 Benchmark]: Witness Printer took 55.84 ms. Allocated memory is still 1.1 GB. Free memory was 832.4 MB in the beginning and 825.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:57:10,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.32 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 942.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 518.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3862.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 832.4 MB in the end (delta: 234.2 MB). Peak memory consumption was 234.2 MB. Max. memory is 11.5 GB. * Witness Printer took 55.84 ms. Allocated memory is still 1.1 GB. Free memory was 832.4 MB in the beginning and 825.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2018-10-26 21:57:10,958 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 21:57:10,958 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((j == 0bv32 && 0bv32 == array) && ~bvadd64(SIZE, 4294967295bv32) == 0bv32) || (((0bv32 == array && ~bvsge32(unknown-#memory_int-unknown[array][array], menor)) && ~bvadd64(j, 4294967295bv32) == 0bv32) && ~bvadd64(SIZE, 4294967295bv32) == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 73 SDtfs, 17 SDslu, 229 SDs, 0 SdLazy, 186 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 71 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 231 ConstructedInterpolants, 2 QuantifiedInterpolants, 15225 SizeOfPredicates, 83 NumberOfNonLiveVariables, 525 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 24/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...