./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:36:46,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:36:46,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:36:46,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:36:46,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:36:46,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:36:46,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:36:46,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:36:46,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:36:46,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:36:46,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:36:46,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:36:46,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:36:46,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:36:46,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:36:46,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:36:46,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:36:46,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:36:46,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:36:46,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:36:46,947 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:36:46,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:36:46,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:36:46,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:36:46,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:36:46,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:36:46,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:36:46,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:36:46,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:36:46,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:36:46,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:36:46,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:36:46,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:36:46,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:36:46,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:36:46,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:36:46,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:36:46,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:36:46,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:36:46,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:36:46,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:36:46,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:36:46,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:36:46,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:36:47,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:36:47,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:36:47,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:36:47,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:36:47,002 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:36:47,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:36:47,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:36:47,003 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:36:47,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:36:47,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:36:47,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:36:47,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:36:47,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:36:47,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:36:47,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:36:47,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:36:47,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:36:47,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:36:47,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:36:47,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:36:47,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:36:47,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:36:47,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:36:47,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:36:47,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:36:47,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:36:47,008 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:36:47,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:36:47,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:36:47,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2022-07-19 23:36:47,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:36:47,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:36:47,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:36:47,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:36:47,268 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:36:47,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-19 23:36:47,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7570c049/e65e898c92194b8992feee64319f85f9/FLAG4af9db2ba [2022-07-19 23:36:47,934 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:36:47,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-19 23:36:47,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7570c049/e65e898c92194b8992feee64319f85f9/FLAG4af9db2ba [2022-07-19 23:36:48,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7570c049/e65e898c92194b8992feee64319f85f9 [2022-07-19 23:36:48,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:36:48,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:36:48,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:36:48,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:36:48,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:36:48,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:36:48" (1/1) ... [2022-07-19 23:36:48,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f972d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:48, skipping insertion in model container [2022-07-19 23:36:48,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:36:48" (1/1) ... [2022-07-19 23:36:48,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:36:48,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:36:48,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-19 23:36:49,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:36:49,365 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:36:49,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-19 23:36:49,590 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: val = (unsigned int )val & 246U [6182] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-19 23:36:49,602 INFO L158 Benchmark]: Toolchain (without parser) took 1512.13ms. Allocated memory was 88.1MB in the beginning and 163.6MB in the end (delta: 75.5MB). Free memory was 44.9MB in the beginning and 92.1MB in the end (delta: -47.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2022-07-19 23:36:49,603 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 23:36:49,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1509.93ms. Allocated memory was 88.1MB in the beginning and 163.6MB in the end (delta: 75.5MB). Free memory was 44.7MB in the beginning and 92.1MB in the end (delta: -47.4MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2022-07-19 23:36:49,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1509.93ms. Allocated memory was 88.1MB in the beginning and 163.6MB in the end (delta: 75.5MB). Free memory was 44.7MB in the beginning and 92.1MB in the end (delta: -47.4MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = (unsigned int )val & 246U [6182] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = (unsigned int )val & 246U [6182]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:36:51,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:36:51,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:36:51,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:36:51,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:36:51,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:36:51,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:36:51,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:36:51,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:36:51,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:36:51,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:36:51,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:36:51,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:36:51,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:36:51,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:36:51,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:36:51,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:36:51,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:36:51,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:36:51,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:36:51,527 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:36:51,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:36:51,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:36:51,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:36:51,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:36:51,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:36:51,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:36:51,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:36:51,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:36:51,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:36:51,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:36:51,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:36:51,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:36:51,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:36:51,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:36:51,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:36:51,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:36:51,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:36:51,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:36:51,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:36:51,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:36:51,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:36:51,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 23:36:51,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:36:51,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:36:51,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:36:51,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:36:51,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:36:51,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:36:51,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:36:51,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:36:51,595 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:36:51,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:36:51,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:36:51,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:36:51,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:36:51,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:36:51,597 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 23:36:51,597 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 23:36:51,597 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 23:36:51,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:36:51,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:36:51,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:36:51,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:36:51,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:36:51,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:36:51,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:36:51,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:36:51,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:36:51,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:36:51,599 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 23:36:51,600 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 23:36:51,600 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:36:51,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:36:51,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:36:51,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 23:36:51,601 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2022-07-19 23:36:51,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:36:51,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:36:51,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:36:51,967 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:36:51,968 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:36:51,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-19 23:36:52,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfa581dc/430c3fb99bc74986bc5065f06807e5a6/FLAG64603cf1a [2022-07-19 23:36:52,809 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:36:52,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-19 23:36:52,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfa581dc/430c3fb99bc74986bc5065f06807e5a6/FLAG64603cf1a [2022-07-19 23:36:52,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acfa581dc/430c3fb99bc74986bc5065f06807e5a6 [2022-07-19 23:36:52,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:36:52,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:36:52,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:36:52,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:36:52,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:36:52,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:36:52" (1/1) ... [2022-07-19 23:36:52,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c88a328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:52, skipping insertion in model container [2022-07-19 23:36:52,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:36:52" (1/1) ... [2022-07-19 23:36:52,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:36:52,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:36:53,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-19 23:36:54,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:36:54,249 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 23:36:54,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:36:54,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-19 23:36:54,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:36:54,623 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:36:54,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-19 23:36:54,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:36:54,915 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:36:54,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54 WrapperNode [2022-07-19 23:36:54,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:36:54,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:36:54,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:36:54,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:36:54,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:54,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,084 INFO L137 Inliner]: procedures = 152, calls = 1066, calls flagged for inlining = 55, calls inlined = 52, statements flattened = 1815 [2022-07-19 23:36:55,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:36:55,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:36:55,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:36:55,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:36:55,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:36:55,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:36:55,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:36:55,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:36:55,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (1/1) ... [2022-07-19 23:36:55,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:36:55,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:36:55,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 23:36:55,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 23:36:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 23:36:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2022-07-19 23:36:55,328 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2022-07-19 23:36:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 23:36:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:36:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-19 23:36:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:36:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:36:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:36:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure write_long_reg [2022-07-19 23:36:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure write_long_reg [2022-07-19 23:36:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-07-19 23:36:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-07-19 23:36:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:36:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:36:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-19 23:36:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-19 23:36:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-07-19 23:36:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-07-19 23:36:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:36:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:36:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-19 23:36:55,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-19 23:36:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:36:55,331 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:36:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:36:55,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:36:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-19 23:36:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-19 23:36:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-19 23:36:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-19 23:36:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:36:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:36:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_set_channel [2022-07-19 23:36:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_set_channel [2022-07-19 23:36:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-07-19 23:36:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-07-19 23:36:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:36:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:36:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure write_short_reg [2022-07-19 23:36:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure write_short_reg [2022-07-19 23:36:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:36:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:36:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_unregister_device [2022-07-19 23:36:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_unregister_device [2022-07-19 23:36:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-19 23:36:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-19 23:36:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:36:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:36:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-19 23:36:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-19 23:36:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-19 23:36:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-19 23:36:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-07-19 23:36:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-07-19 23:36:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-19 23:36:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-19 23:36:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-19 23:36:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure read_short_reg [2022-07-19 23:36:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure read_short_reg [2022-07-19 23:36:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_filter [2022-07-19 23:36:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_filter [2022-07-19 23:36:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:36:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-19 23:36:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-19 23:36:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-19 23:36:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 23:36:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 23:36:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:36:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 23:36:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-19 23:36:55,342 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-19 23:36:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:36:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-19 23:36:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-19 23:36:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-07-19 23:36:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-07-19 23:36:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 23:36:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_tx [2022-07-19 23:36:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_tx [2022-07-19 23:36:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_isr [2022-07-19 23:36:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_isr [2022-07-19 23:36:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_ed [2022-07-19 23:36:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_ed [2022-07-19 23:36:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-19 23:36:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-19 23:36:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_free_device [2022-07-19 23:36:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_free_device [2022-07-19 23:36:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-19 23:36:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:36:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:36:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:36:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:36:55,815 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:36:55,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:36:58,415 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:37:32,438 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:37:32,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:37:32,450 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-19 23:37:32,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:32 BoogieIcfgContainer [2022-07-19 23:37:32,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:37:32,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:37:32,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:37:32,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:37:32,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:36:52" (1/3) ... [2022-07-19 23:37:32,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa5a047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:32, skipping insertion in model container [2022-07-19 23:37:32,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:54" (2/3) ... [2022-07-19 23:37:32,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa5a047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:37:32, skipping insertion in model container [2022-07-19 23:37:32,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:37:32" (3/3) ... [2022-07-19 23:37:32,461 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-19 23:37:32,473 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:37:32,474 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:37:32,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:37:32,551 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@61707ef, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4093e6a5 [2022-07-19 23:37:32,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:37:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 621 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 453 states have internal predecessors, (601), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2022-07-19 23:37:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-19 23:37:32,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:37:32,584 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:37:32,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:37:32,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:37:32,595 INFO L85 PathProgramCache]: Analyzing trace with hash -829070541, now seen corresponding path program 1 times [2022-07-19 23:37:32,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:37:32,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607591516] [2022-07-19 23:37:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:37:32,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:37:32,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:37:32,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:37:32,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 23:37:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:37:33,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:37:33,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:37:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-19 23:37:33,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:37:33,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:37:33,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607591516] [2022-07-19 23:37:33,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607591516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:37:33,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:37:33,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:37:33,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920084598] [2022-07-19 23:37:33,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:37:33,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:37:33,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:37:33,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:37:33,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:37:33,658 INFO L87 Difference]: Start difference. First operand has 621 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 453 states have internal predecessors, (601), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:37:35,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:37:36,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:37:36,257 INFO L93 Difference]: Finished difference Result 1823 states and 2771 transitions. [2022-07-19 23:37:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:37:36,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-19 23:37:36,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:37:36,289 INFO L225 Difference]: With dead ends: 1823 [2022-07-19 23:37:36,290 INFO L226 Difference]: Without dead ends: 1183 [2022-07-19 23:37:36,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:37:36,308 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 831 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:37:36,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1881 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 23:37:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-07-19 23:37:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2022-07-19 23:37:36,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 846 states have (on average 1.3321513002364067) internal successors, (1127), 854 states have internal predecessors, (1127), 274 states have call successors, (274), 63 states have call predecessors, (274), 62 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) [2022-07-19 23:37:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1674 transitions. [2022-07-19 23:37:36,518 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1674 transitions. Word has length 37 [2022-07-19 23:37:36,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:37:36,520 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1674 transitions. [2022-07-19 23:37:36,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:37:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1674 transitions. [2022-07-19 23:37:36,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-19 23:37:36,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:37:36,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:37:36,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 23:37:36,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:37:36,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:37:36,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:37:36,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1782235712, now seen corresponding path program 1 times [2022-07-19 23:37:36,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:37:36,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992966677] [2022-07-19 23:37:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:37:36,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:37:36,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:37:36,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:37:36,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 23:37:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:37:37,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:37:37,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:37:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-19 23:37:38,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:37:38,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:37:38,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992966677] [2022-07-19 23:37:38,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992966677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:37:38,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:37:38,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:37:38,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718746049] [2022-07-19 23:37:38,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:37:38,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:37:38,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:37:38,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:37:38,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:37:38,510 INFO L87 Difference]: Start difference. First operand 1183 states and 1674 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:37:40,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:37:40,079 INFO L93 Difference]: Finished difference Result 3526 states and 5042 transitions. [2022-07-19 23:37:40,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:37:40,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-07-19 23:37:40,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:37:40,104 INFO L225 Difference]: With dead ends: 3526 [2022-07-19 23:37:40,105 INFO L226 Difference]: Without dead ends: 2346 [2022-07-19 23:37:40,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:37:40,116 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 835 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:37:40,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 3971 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 23:37:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2022-07-19 23:37:40,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2338. [2022-07-19 23:37:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 1669 states have (on average 1.3319352905931696) internal successors, (2223), 1685 states have internal predecessors, (2223), 544 states have call successors, (544), 125 states have call predecessors, (544), 124 states have return successors, (569), 543 states have call predecessors, (569), 543 states have call successors, (569) [2022-07-19 23:37:40,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3336 transitions. [2022-07-19 23:37:40,239 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3336 transitions. Word has length 39 [2022-07-19 23:37:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:37:40,240 INFO L495 AbstractCegarLoop]: Abstraction has 2338 states and 3336 transitions. [2022-07-19 23:37:40,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:37:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3336 transitions. [2022-07-19 23:37:40,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-19 23:37:40,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:37:40,261 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:37:40,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 23:37:40,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:37:40,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:37:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:37:40,476 INFO L85 PathProgramCache]: Analyzing trace with hash -353908813, now seen corresponding path program 1 times [2022-07-19 23:37:40,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:37:40,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585008403] [2022-07-19 23:37:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:37:40,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:37:40,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:37:40,486 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:37:40,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 23:37:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:37:42,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:37:42,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:37:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-19 23:37:50,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:37:50,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:37:50,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585008403] [2022-07-19 23:37:50,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585008403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:37:50,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:37:50,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:37:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985608014] [2022-07-19 23:37:50,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:37:50,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:37:50,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:37:50,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:37:50,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:37:50,593 INFO L87 Difference]: Start difference. First operand 2338 states and 3336 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:37:52,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:37:54,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:38:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:38:06,654 INFO L93 Difference]: Finished difference Result 4694 states and 6715 transitions. [2022-07-19 23:38:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:38:06,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 233 [2022-07-19 23:38:06,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:38:06,678 INFO L225 Difference]: With dead ends: 4694 [2022-07-19 23:38:06,678 INFO L226 Difference]: Without dead ends: 2366 [2022-07-19 23:38:06,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:38:06,690 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 748 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:38:06,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1957 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2022-07-19 23:38:06,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2022-07-19 23:38:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2358. [2022-07-19 23:38:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2358 states, 1683 states have (on average 1.3303624480095069) internal successors, (2239), 1705 states have internal predecessors, (2239), 544 states have call successors, (544), 125 states have call predecessors, (544), 130 states have return successors, (585), 543 states have call predecessors, (585), 543 states have call successors, (585) [2022-07-19 23:38:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 3368 transitions. [2022-07-19 23:38:06,775 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 3368 transitions. Word has length 233 [2022-07-19 23:38:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:38:06,776 INFO L495 AbstractCegarLoop]: Abstraction has 2358 states and 3368 transitions. [2022-07-19 23:38:06,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:38:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 3368 transitions. [2022-07-19 23:38:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-19 23:38:06,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:38:06,786 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:38:06,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:38:06,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:38:07,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:38:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:38:07,000 INFO L85 PathProgramCache]: Analyzing trace with hash -482558547, now seen corresponding path program 1 times [2022-07-19 23:38:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:38:07,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012065496] [2022-07-19 23:38:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:38:07,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:38:07,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:38:07,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:38:07,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 23:38:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:38:08,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:38:08,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:38:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-19 23:38:16,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:38:16,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:38:16,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012065496] [2022-07-19 23:38:16,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012065496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:38:16,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:38:16,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:38:16,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696561832] [2022-07-19 23:38:16,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:38:16,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:38:16,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:38:16,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:38:16,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:38:16,712 INFO L87 Difference]: Start difference. First operand 2358 states and 3368 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:38:18,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:38:20,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:38:31,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:38:31,932 INFO L93 Difference]: Finished difference Result 7082 states and 10142 transitions. [2022-07-19 23:38:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:38:31,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 230 [2022-07-19 23:38:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:38:31,970 INFO L225 Difference]: With dead ends: 7082 [2022-07-19 23:38:31,970 INFO L226 Difference]: Without dead ends: 4734 [2022-07-19 23:38:31,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:38:31,987 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 771 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:38:31,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 2930 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 590 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2022-07-19 23:38:31,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2022-07-19 23:38:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 4716. [2022-07-19 23:38:32,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4716 states, 3365 states have (on average 1.3295690936106983) internal successors, (4474), 3415 states have internal predecessors, (4474), 1084 states have call successors, (1084), 249 states have call predecessors, (1084), 266 states have return successors, (1187), 1083 states have call predecessors, (1187), 1083 states have call successors, (1187) [2022-07-19 23:38:32,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6745 transitions. [2022-07-19 23:38:32,193 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6745 transitions. Word has length 230 [2022-07-19 23:38:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:38:32,195 INFO L495 AbstractCegarLoop]: Abstraction has 4716 states and 6745 transitions. [2022-07-19 23:38:32,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:38:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6745 transitions. [2022-07-19 23:38:32,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-19 23:38:32,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:38:32,205 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:38:32,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 23:38:32,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:38:32,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:38:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:38:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash 792522176, now seen corresponding path program 1 times [2022-07-19 23:38:32,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:38:32,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928131898] [2022-07-19 23:38:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:38:32,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:38:32,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:38:32,427 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:38:32,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 23:38:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:38:34,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2754 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:38:34,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:38:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-19 23:38:41,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:38:41,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:38:41,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928131898] [2022-07-19 23:38:41,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928131898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:38:41,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:38:41,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:38:41,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410808496] [2022-07-19 23:38:41,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:38:41,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:38:41,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:38:41,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:38:41,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:38:41,723 INFO L87 Difference]: Start difference. First operand 4716 states and 6745 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:38:43,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:38:45,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:38:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:38:56,921 INFO L93 Difference]: Finished difference Result 11790 states and 16874 transitions. [2022-07-19 23:38:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:38:56,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 228 [2022-07-19 23:38:56,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:38:57,035 INFO L225 Difference]: With dead ends: 11790 [2022-07-19 23:38:57,035 INFO L226 Difference]: Without dead ends: 7084 [2022-07-19 23:38:57,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:38:57,054 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 769 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:38:57,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2922 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2022-07-19 23:38:57,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2022-07-19 23:38:57,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 7066. [2022-07-19 23:38:57,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7066 states, 5039 states have (on average 1.3282397301051796) internal successors, (6693), 5117 states have internal predecessors, (6693), 1624 states have call successors, (1624), 373 states have call predecessors, (1624), 402 states have return successors, (1781), 1623 states have call predecessors, (1781), 1623 states have call successors, (1781) [2022-07-19 23:38:57,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7066 states to 7066 states and 10098 transitions. [2022-07-19 23:38:57,357 INFO L78 Accepts]: Start accepts. Automaton has 7066 states and 10098 transitions. Word has length 228 [2022-07-19 23:38:57,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:38:57,358 INFO L495 AbstractCegarLoop]: Abstraction has 7066 states and 10098 transitions. [2022-07-19 23:38:57,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:38:57,359 INFO L276 IsEmpty]: Start isEmpty. Operand 7066 states and 10098 transitions. [2022-07-19 23:38:57,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-19 23:38:57,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:38:57,371 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:38:57,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:38:57,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:38:57,596 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:38:57,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:38:57,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1627636270, now seen corresponding path program 1 times [2022-07-19 23:38:57,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:38:57,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853717574] [2022-07-19 23:38:57,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:38:57,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:38:57,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:38:57,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:38:57,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 23:38:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:38:59,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:38:59,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:39:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-19 23:39:07,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:39:07,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:39:07,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853717574] [2022-07-19 23:39:07,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853717574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:39:07,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:39:07,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:39:07,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296508405] [2022-07-19 23:39:07,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:39:07,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:39:07,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:39:07,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:39:07,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:39:07,502 INFO L87 Difference]: Start difference. First operand 7066 states and 10098 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:39:09,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:39:11,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:39:22,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:39:22,968 INFO L93 Difference]: Finished difference Result 21202 states and 30310 transitions. [2022-07-19 23:39:22,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:39:22,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 230 [2022-07-19 23:39:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:39:23,059 INFO L225 Difference]: With dead ends: 21202 [2022-07-19 23:39:23,059 INFO L226 Difference]: Without dead ends: 14146 [2022-07-19 23:39:23,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:39:23,102 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 747 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:39:23,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 3243 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 605 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2022-07-19 23:39:23,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14146 states. [2022-07-19 23:39:23,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14146 to 14064. [2022-07-19 23:39:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14064 states, 10015 states have (on average 1.330204692960559) internal successors, (13322), 10219 states have internal predecessors, (13322), 3244 states have call successors, (3244), 745 states have call predecessors, (3244), 804 states have return successors, (3535), 3195 states have call predecessors, (3535), 3243 states have call successors, (3535) [2022-07-19 23:39:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14064 states to 14064 states and 20101 transitions. [2022-07-19 23:39:23,695 INFO L78 Accepts]: Start accepts. Automaton has 14064 states and 20101 transitions. Word has length 230 [2022-07-19 23:39:23,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:39:23,696 INFO L495 AbstractCegarLoop]: Abstraction has 14064 states and 20101 transitions. [2022-07-19 23:39:23,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:39:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 14064 states and 20101 transitions. [2022-07-19 23:39:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-19 23:39:23,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:39:23,715 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:39:23,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 23:39:23,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:39:23,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:39:23,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:39:23,936 INFO L85 PathProgramCache]: Analyzing trace with hash 27161038, now seen corresponding path program 1 times [2022-07-19 23:39:23,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:39:23,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615866180] [2022-07-19 23:39:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:39:23,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:39:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:39:23,939 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:39:23,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 23:39:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:39:26,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 2756 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:39:26,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:39:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-19 23:39:33,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:39:33,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:39:33,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615866180] [2022-07-19 23:39:33,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615866180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:39:33,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:39:33,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:39:33,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81225491] [2022-07-19 23:39:33,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:39:33,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:39:33,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:39:33,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:39:33,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:39:33,976 INFO L87 Difference]: Start difference. First operand 14064 states and 20101 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:39:36,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:39:38,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:39:49,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:39:49,357 INFO L93 Difference]: Finished difference Result 32852 states and 46981 transitions. [2022-07-19 23:39:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:39:49,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 229 [2022-07-19 23:39:49,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:39:49,446 INFO L225 Difference]: With dead ends: 32852 [2022-07-19 23:39:49,447 INFO L226 Difference]: Without dead ends: 18798 [2022-07-19 23:39:49,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:39:49,496 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 757 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:39:49,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 3082 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 589 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2022-07-19 23:39:49,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18798 states. [2022-07-19 23:39:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18798 to 18756. [2022-07-19 23:39:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18756 states, 13355 states have (on average 1.32983901160614) internal successors, (17760), 13631 states have internal predecessors, (17760), 4324 states have call successors, (4324), 993 states have call predecessors, (4324), 1076 states have return successors, (4699), 4259 states have call predecessors, (4699), 4323 states have call successors, (4699) [2022-07-19 23:39:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18756 states to 18756 states and 26783 transitions. [2022-07-19 23:39:50,516 INFO L78 Accepts]: Start accepts. Automaton has 18756 states and 26783 transitions. Word has length 229 [2022-07-19 23:39:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:39:50,517 INFO L495 AbstractCegarLoop]: Abstraction has 18756 states and 26783 transitions. [2022-07-19 23:39:50,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:39:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 18756 states and 26783 transitions. [2022-07-19 23:39:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-19 23:39:50,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:39:50,534 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:39:50,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-19 23:39:50,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:39:50,748 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:39:50,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:39:50,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1343364159, now seen corresponding path program 1 times [2022-07-19 23:39:50,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:39:50,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135533012] [2022-07-19 23:39:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:39:50,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:39:50,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:39:50,756 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:39:50,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 23:39:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:39:52,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 2752 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:39:52,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:40:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-19 23:40:00,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:40:00,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:40:00,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135533012] [2022-07-19 23:40:00,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135533012] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:00,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:00,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:40:00,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32594131] [2022-07-19 23:40:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:00,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:40:00,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:40:00,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:40:00,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:40:00,564 INFO L87 Difference]: Start difference. First operand 18756 states and 26783 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:40:02,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:04,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:16,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:16,389 INFO L93 Difference]: Finished difference Result 41291 states and 58904 transitions. [2022-07-19 23:40:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:40:16,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 227 [2022-07-19 23:40:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:16,500 INFO L225 Difference]: With dead ends: 41291 [2022-07-19 23:40:16,500 INFO L226 Difference]: Without dead ends: 22425 [2022-07-19 23:40:16,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:40:16,639 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 762 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:16,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2911 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-07-19 23:40:16,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22425 states. [2022-07-19 23:40:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22425 to 22391. [2022-07-19 23:40:17,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22391 states, 15914 states have (on average 1.3271961794646223) internal successors, (21121), 16250 states have internal predecessors, (21121), 5182 states have call successors, (5182), 1203 states have call predecessors, (5182), 1294 states have return successors, (5605), 5083 states have call predecessors, (5605), 5181 states have call successors, (5605) [2022-07-19 23:40:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22391 states to 22391 states and 31908 transitions. [2022-07-19 23:40:17,543 INFO L78 Accepts]: Start accepts. Automaton has 22391 states and 31908 transitions. Word has length 227 [2022-07-19 23:40:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:17,544 INFO L495 AbstractCegarLoop]: Abstraction has 22391 states and 31908 transitions. [2022-07-19 23:40:17,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:40:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 22391 states and 31908 transitions. [2022-07-19 23:40:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-19 23:40:17,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:17,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:40:17,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-19 23:40:17,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:40:17,791 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash -97457434, now seen corresponding path program 1 times [2022-07-19 23:40:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:40:17,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33165601] [2022-07-19 23:40:17,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:17,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:40:17,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:40:17,796 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:40:17,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-19 23:40:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:20,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:40:20,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:40:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-19 23:40:28,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:40:28,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:40:28,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33165601] [2022-07-19 23:40:28,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33165601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:28,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:28,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:40:28,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436646882] [2022-07-19 23:40:28,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:28,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:40:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:40:28,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:40:28,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:40:28,101 INFO L87 Difference]: Start difference. First operand 22391 states and 31908 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:40:30,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:32,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:43,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:43,474 INFO L93 Difference]: Finished difference Result 34135 states and 48683 transitions. [2022-07-19 23:40:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:40:43,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 231 [2022-07-19 23:40:43,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:43,591 INFO L225 Difference]: With dead ends: 34135 [2022-07-19 23:40:43,591 INFO L226 Difference]: Without dead ends: 22471 [2022-07-19 23:40:43,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:40:43,642 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 759 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:43,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 1957 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2022-07-19 23:40:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22471 states. [2022-07-19 23:40:44,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22471 to 22391. [2022-07-19 23:40:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22391 states, 15914 states have (on average 1.3271961794646223) internal successors, (21121), 16250 states have internal predecessors, (21121), 5182 states have call successors, (5182), 1203 states have call predecessors, (5182), 1294 states have return successors, (5529), 5083 states have call predecessors, (5529), 5181 states have call successors, (5529) [2022-07-19 23:40:44,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22391 states to 22391 states and 31832 transitions. [2022-07-19 23:40:44,608 INFO L78 Accepts]: Start accepts. Automaton has 22391 states and 31832 transitions. Word has length 231 [2022-07-19 23:40:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:44,609 INFO L495 AbstractCegarLoop]: Abstraction has 22391 states and 31832 transitions. [2022-07-19 23:40:44,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-19 23:40:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 22391 states and 31832 transitions. [2022-07-19 23:40:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-19 23:40:44,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:44,637 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:40:44,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-19 23:40:44,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:40:44,859 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:44,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:44,859 INFO L85 PathProgramCache]: Analyzing trace with hash -294115493, now seen corresponding path program 1 times [2022-07-19 23:40:44,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:40:44,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354450648] [2022-07-19 23:40:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:44,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:40:44,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:40:44,863 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:40:44,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-19 23:40:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:46,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 2762 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:40:46,976 INFO L286 TraceCheckSpWp]: Computing forward predicates...