./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:17:40,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:17:40,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:17:40,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:17:40,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:17:40,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:17:40,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:17:40,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:17:40,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:17:40,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:17:40,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:17:40,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:17:40,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:17:40,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:17:40,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:17:40,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:17:40,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:17:40,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:17:40,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:17:40,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:17:40,925 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:17:40,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:17:40,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:17:40,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:17:40,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:17:40,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:17:40,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:17:40,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:17:40,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:17:40,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:17:40,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:17:40,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:17:40,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:17:40,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:17:40,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:17:40,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:17:40,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:17:40,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:17:40,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:17:40,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:17:40,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:17:40,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:17:40,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:17:40,968 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:17:40,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:17:40,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:17:40,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:17:40,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:17:40,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:17:40,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:17:40,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:17:40,971 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:17:40,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:17:40,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:17:40,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:17:40,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:17:40,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:17:40,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:17:40,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:17:40,973 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:17:40,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:17:40,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:17:40,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:17:40,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:17:40,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:17:40,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:17:40,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:17:40,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:17:40,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:17:40,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:17:40,977 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:17:40,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:17:40,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:17:40,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-23 01:17:41,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:17:41,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:17:41,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:17:41,269 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:17:41,269 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:17:41,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-23 01:17:41,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34be7a41e/6d700bf0a01b460ea731bf1414a3a1ec/FLAG0bd44e22a [2022-07-23 01:17:42,168 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:17:42,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-23 01:17:42,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34be7a41e/6d700bf0a01b460ea731bf1414a3a1ec/FLAG0bd44e22a [2022-07-23 01:17:42,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34be7a41e/6d700bf0a01b460ea731bf1414a3a1ec [2022-07-23 01:17:42,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:17:42,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:17:42,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:17:42,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:17:42,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:17:42,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:17:42" (1/1) ... [2022-07-23 01:17:42,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:42, skipping insertion in model container [2022-07-23 01:17:42,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:17:42" (1/1) ... [2022-07-23 01:17:42,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:17:42,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:17:43,951 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-23 01:17:44,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:17:44,129 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:17:44,366 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: hc_fminterval = hc_fminterval & 16383U [7308] 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) [2022-07-23 01:17:44,373 INFO L158 Benchmark]: Toolchain (without parser) took 2050.26ms. Allocated memory was 96.5MB in the beginning and 176.2MB in the end (delta: 79.7MB). Free memory was 60.6MB in the beginning and 101.6MB in the end (delta: -41.0MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2022-07-23 01:17:44,374 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 01:17:44,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2046.99ms. Allocated memory was 96.5MB in the beginning and 176.2MB in the end (delta: 79.7MB). Free memory was 60.4MB in the beginning and 101.6MB in the end (delta: -41.2MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2022-07-23 01:17:44,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2046.99ms. Allocated memory was 96.5MB in the beginning and 176.2MB in the end (delta: 79.7MB). Free memory was 60.4MB in the beginning and 101.6MB in the end (delta: -41.2MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: hc_fminterval = hc_fminterval & 16383U [7308] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: hc_fminterval = hc_fminterval & 16383U [7308]: 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:17:46,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:17:46,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:17:46,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:17:46,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:17:46,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:17:46,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:17:46,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:17:46,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:17:46,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:17:46,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:17:46,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:17:46,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:17:46,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:17:46,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:17:46,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:17:46,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:17:46,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:17:46,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:17:46,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:17:46,193 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:17:46,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:17:46,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:17:46,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:17:46,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:17:46,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:17:46,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:17:46,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:17:46,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:17:46,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:17:46,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:17:46,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:17:46,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:17:46,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:17:46,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:17:46,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:17:46,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:17:46,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:17:46,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:17:46,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:17:46,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:17:46,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:17:46,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 01:17:46,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:17:46,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:17:46,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:17:46,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:17:46,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:17:46,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:17:46,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:17:46,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:17:46,250 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:17:46,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:17:46,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:17:46,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:17:46,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:17:46,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:17:46,260 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 01:17:46,260 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 01:17:46,260 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 01:17:46,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:17:46,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:17:46,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:17:46,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:17:46,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:17:46,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:17:46,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:17:46,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:17:46,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:17:46,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:17:46,262 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 01:17:46,263 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 01:17:46,263 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:17:46,263 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:17:46,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:17:46,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 01:17:46,264 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-23 01:17:46,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:17:46,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:17:46,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:17:46,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:17:46,583 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:17:46,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-23 01:17:46,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8bcc0647/67ab86b0d6e444afa0c4820c8ad1bdcf/FLAGcaad46c21 [2022-07-23 01:17:47,382 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:17:47,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-23 01:17:47,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8bcc0647/67ab86b0d6e444afa0c4820c8ad1bdcf/FLAGcaad46c21 [2022-07-23 01:17:47,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8bcc0647/67ab86b0d6e444afa0c4820c8ad1bdcf [2022-07-23 01:17:47,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:17:47,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:17:47,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:17:47,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:17:47,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:17:47,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:17:47" (1/1) ... [2022-07-23 01:17:47,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecbae8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:47, skipping insertion in model container [2022-07-23 01:17:47,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:17:47" (1/1) ... [2022-07-23 01:17:47,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:17:47,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:17:49,720 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-23 01:17:49,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:17:49,932 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 01:17:50,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:17:50,309 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-23 01:17:50,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:17:50,360 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:17:50,628 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-23 01:17:50,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:17:50,755 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:17:50,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50 WrapperNode [2022-07-23 01:17:50,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:17:50,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:17:50,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:17:50,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:17:50,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:50,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,143 INFO L137 Inliner]: procedures = 394, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6570 [2022-07-23 01:17:51,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:17:51,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:17:51,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:17:51,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:17:51,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:17:51,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:17:51,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:17:51,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:17:51,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (1/1) ... [2022-07-23 01:17:51,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:17:51,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:17:51,533 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) [2022-07-23 01:17:51,560 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 [2022-07-23 01:17:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-23 01:17:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-23 01:17:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:17:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:17:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2022-07-23 01:17:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2022-07-23 01:17:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:17:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:17:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-23 01:17:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-23 01:17:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-23 01:17:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-23 01:17:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-23 01:17:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-23 01:17:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2022-07-23 01:17:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2022-07-23 01:17:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-23 01:17:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-23 01:17:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-23 01:17:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2022-07-23 01:17:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2022-07-23 01:17:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-23 01:17:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-23 01:17:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:17:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 01:17:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 01:17:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 01:17:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-23 01:17:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-23 01:17:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 01:17:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 01:17:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2022-07-23 01:17:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2022-07-23 01:17:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2022-07-23 01:17:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2022-07-23 01:17:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2022-07-23 01:17:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2022-07-23 01:17:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2022-07-23 01:17:51,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2022-07-23 01:17:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-23 01:17:51,581 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-23 01:17:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2022-07-23 01:17:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2022-07-23 01:17:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2022-07-23 01:17:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2022-07-23 01:17:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-23 01:17:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-23 01:17:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2022-07-23 01:17:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2022-07-23 01:17:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2022-07-23 01:17:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2022-07-23 01:17:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2022-07-23 01:17:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2022-07-23 01:17:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:17:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:17:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2022-07-23 01:17:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2022-07-23 01:17:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2022-07-23 01:17:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2022-07-23 01:17:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:17:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2022-07-23 01:17:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2022-07-23 01:17:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-23 01:17:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-23 01:17:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-23 01:17:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-23 01:17:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:17:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-23 01:17:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-23 01:17:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:17:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2022-07-23 01:17:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2022-07-23 01:17:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 01:17:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 01:17:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2022-07-23 01:17:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2022-07-23 01:17:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-23 01:17:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-23 01:17:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2022-07-23 01:17:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2022-07-23 01:17:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-23 01:17:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-23 01:17:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 01:17:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 01:17:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-23 01:17:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-23 01:17:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:17:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:17:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-23 01:17:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 01:17:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-23 01:17:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2022-07-23 01:17:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 01:17:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:17:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:17:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-23 01:17:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-23 01:17:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2022-07-23 01:17:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2022-07-23 01:17:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-23 01:17:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-23 01:17:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-23 01:17:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-23 01:17:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 01:17:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 01:17:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-23 01:17:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-23 01:17:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:17:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:17:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-23 01:17:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-23 01:17:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:17:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:17:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 01:17:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 01:17:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2022-07-23 01:17:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2022-07-23 01:17:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2022-07-23 01:17:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2022-07-23 01:17:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:17:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 01:17:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 01:17:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-07-23 01:17:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-07-23 01:17:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:17:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-23 01:17:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-23 01:17:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 01:17:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 01:17:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 01:17:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 01:17:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-07-23 01:17:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-07-23 01:17:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:17:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2022-07-23 01:17:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2022-07-23 01:17:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-23 01:17:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-23 01:17:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2022-07-23 01:17:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2022-07-23 01:17:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-23 01:17:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-23 01:17:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-23 01:17:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-23 01:17:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-23 01:17:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-23 01:17:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-23 01:17:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-23 01:17:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2022-07-23 01:17:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2022-07-23 01:17:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2022-07-23 01:17:51,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2022-07-23 01:17:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2022-07-23 01:17:51,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2022-07-23 01:17:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-23 01:17:51,600 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-23 01:17:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-23 01:17:51,600 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-23 01:17:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2022-07-23 01:17:51,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2022-07-23 01:17:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2022-07-23 01:17:51,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2022-07-23 01:17:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-23 01:17:51,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-23 01:17:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2022-07-23 01:17:51,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2022-07-23 01:17:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-23 01:17:51,602 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-23 01:17:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 01:17:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 01:17:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 01:17:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:17:51,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:17:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2022-07-23 01:17:51,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2022-07-23 01:17:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:17:51,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:17:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-23 01:17:51,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-23 01:17:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-23 01:17:51,603 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-23 01:17:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-23 01:17:51,604 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-23 01:17:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-23 01:17:51,604 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-23 01:17:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2022-07-23 01:17:51,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2022-07-23 01:17:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-23 01:17:51,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-23 01:17:52,257 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:17:52,262 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:18:13,483 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:19:03,684 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:19:03,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:19:03,700 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 01:19:03,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:19:03 BoogieIcfgContainer [2022-07-23 01:19:03,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:19:03,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:19:03,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:19:03,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:19:03,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:17:47" (1/3) ... [2022-07-23 01:19:03,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7356f6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:19:03, skipping insertion in model container [2022-07-23 01:19:03,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:17:50" (2/3) ... [2022-07-23 01:19:03,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7356f6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:19:03, skipping insertion in model container [2022-07-23 01:19:03,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:19:03" (3/3) ... [2022-07-23 01:19:03,710 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-23 01:19:03,722 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:19:03,723 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:19:03,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:19:03,809 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@6ae82734, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7c2490fc [2022-07-23 01:19:03,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:19:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2022-07-23 01:19:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-23 01:19:03,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:19:03,850 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:19:03,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:19:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:19:03,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1015355331, now seen corresponding path program 1 times [2022-07-23 01:19:03,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:19:03,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563518447] [2022-07-23 01:19:03,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:19:03,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:19:03,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:19:03,875 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) [2022-07-23 01:19:03,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 01:19:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:19:05,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-23 01:19:05,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:19:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-23 01:19:05,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:19:05,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:19:05,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563518447] [2022-07-23 01:19:05,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563518447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:19:05,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:19:05,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:19:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038034818] [2022-07-23 01:19:05,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:19:05,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 01:19:05,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:19:05,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 01:19:05,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 01:19:05,570 INFO L87 Difference]: Start difference. First operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-23 01:19:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:19:05,765 INFO L93 Difference]: Finished difference Result 3343 states and 5205 transitions. [2022-07-23 01:19:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 01:19:05,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-07-23 01:19:05,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:19:05,795 INFO L225 Difference]: With dead ends: 3343 [2022-07-23 01:19:05,796 INFO L226 Difference]: Without dead ends: 1660 [2022-07-23 01:19:05,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 01:19:05,823 INFO L413 NwaCegarLoop]: 2479 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:19:05,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 01:19:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-07-23 01:19:05,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1660. [2022-07-23 01:19:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1121 states have (on average 1.392506690454951) internal successors, (1561), 1165 states have internal predecessors, (1561), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-23 01:19:05,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2460 transitions. [2022-07-23 01:19:05,987 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2460 transitions. Word has length 135 [2022-07-23 01:19:05,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:19:05,989 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2460 transitions. [2022-07-23 01:19:05,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-23 01:19:05,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2460 transitions. [2022-07-23 01:19:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-23 01:19:05,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:19:05,999 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:19:06,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 01:19:06,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:19:06,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:19:06,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:19:06,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1914785415, now seen corresponding path program 1 times [2022-07-23 01:19:06,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:19:06,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605307052] [2022-07-23 01:19:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:19:06,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:19:06,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:19:06,219 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) [2022-07-23 01:19:06,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 01:19:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:19:07,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 01:19:07,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:19:07,997 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-23 01:19:07,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:19:07,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:19:07,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605307052] [2022-07-23 01:19:07,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605307052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:19:07,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:19:07,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:19:07,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236402899] [2022-07-23 01:19:07,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:19:08,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 01:19:08,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:19:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 01:19:08,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 01:19:08,001 INFO L87 Difference]: Start difference. First operand 1660 states and 2460 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-23 01:19:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:19:08,320 INFO L93 Difference]: Finished difference Result 3310 states and 4908 transitions. [2022-07-23 01:19:08,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 01:19:08,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2022-07-23 01:19:08,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:19:08,335 INFO L225 Difference]: With dead ends: 3310 [2022-07-23 01:19:08,336 INFO L226 Difference]: Without dead ends: 1661 [2022-07-23 01:19:08,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:19:08,350 INFO L413 NwaCegarLoop]: 2458 mSDtfsCounter, 3 mSDsluCounter, 4907 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7365 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:19:08,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7365 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:19:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-07-23 01:19:08,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-07-23 01:19:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1122 states have (on average 1.392156862745098) internal successors, (1562), 1166 states have internal predecessors, (1562), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-23 01:19:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2461 transitions. [2022-07-23 01:19:08,423 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2461 transitions. Word has length 135 [2022-07-23 01:19:08,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:19:08,426 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2461 transitions. [2022-07-23 01:19:08,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-23 01:19:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2461 transitions. [2022-07-23 01:19:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-23 01:19:08,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:19:08,430 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:19:08,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:19:08,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:19:08,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:19:08,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:19:08,644 INFO L85 PathProgramCache]: Analyzing trace with hash 914592341, now seen corresponding path program 1 times [2022-07-23 01:19:08,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:19:08,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657053480] [2022-07-23 01:19:08,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:19:08,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:19:08,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:19:08,648 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) [2022-07-23 01:19:08,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 01:19:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:19:10,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 01:19:10,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:19:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-23 01:19:10,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:19:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-07-23 01:19:11,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:19:11,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657053480] [2022-07-23 01:19:11,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657053480] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:19:11,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:19:11,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-23 01:19:11,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340269430] [2022-07-23 01:19:11,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:19:11,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:19:11,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:19:11,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:19:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:19:11,238 INFO L87 Difference]: Start difference. First operand 1661 states and 2461 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-23 01:19:12,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:19:12,297 INFO L93 Difference]: Finished difference Result 3321 states and 4925 transitions. [2022-07-23 01:19:12,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 01:19:12,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2022-07-23 01:19:12,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:19:12,309 INFO L225 Difference]: With dead ends: 3321 [2022-07-23 01:19:12,309 INFO L226 Difference]: Without dead ends: 1671 [2022-07-23 01:19:12,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-23 01:19:12,321 INFO L413 NwaCegarLoop]: 2457 mSDtfsCounter, 12 mSDsluCounter, 12264 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14721 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:19:12,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 14721 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 01:19:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-07-23 01:19:12,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2022-07-23 01:19:12,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1131 states have (on average 1.391688770999116) internal successors, (1574), 1175 states have internal predecessors, (1574), 454 states have call successors, (454), 86 states have call predecessors, (454), 85 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-23 01:19:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2473 transitions. [2022-07-23 01:19:12,375 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2473 transitions. Word has length 139 [2022-07-23 01:19:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:19:12,378 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2473 transitions. [2022-07-23 01:19:12,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-23 01:19:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2473 transitions. [2022-07-23 01:19:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-23 01:19:12,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:19:12,381 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:19:12,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 01:19:12,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:19:12,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:19:12,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:19:12,603 INFO L85 PathProgramCache]: Analyzing trace with hash -58419911, now seen corresponding path program 2 times [2022-07-23 01:19:12,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:19:12,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476402143] [2022-07-23 01:19:12,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:19:12,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:19:12,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:19:12,606 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) [2022-07-23 01:19:12,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 01:19:13,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:19:13,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:19:13,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:19:13,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:19:13,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-07-23 01:19:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-07-23 01:19:14,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:19:14,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:19:14,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476402143] [2022-07-23 01:19:14,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476402143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:19:14,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:19:14,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 01:19:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825483445] [2022-07-23 01:19:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:19:14,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:19:14,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:19:14,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:19:14,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:19:14,041 INFO L87 Difference]: Start difference. First operand 1671 states and 2473 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:19:16,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:18,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:22,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:26,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:28,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:30,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:32,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:35,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:38,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:40,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:42,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:44,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:46,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:48,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:49,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:51,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:53,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:56,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:19:58,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:00,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:03,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:05,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:08,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:10,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:12,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:14,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:16,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:19,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:20,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:22,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:25,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:27,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:29,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:31,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:33,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:35,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:36,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:38,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:41,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:43,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:45,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:47,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:49,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:51,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:54,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:57,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:20:59,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:21:01,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:21:09,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:21:11,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:11,803 INFO L93 Difference]: Finished difference Result 3278 states and 4925 transitions. [2022-07-23 01:21:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 01:21:11,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 149 [2022-07-23 01:21:11,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:11,816 INFO L225 Difference]: With dead ends: 3278 [2022-07-23 01:21:11,816 INFO L226 Difference]: Without dead ends: 1647 [2022-07-23 01:21:11,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:21:11,830 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 24 mSDsluCounter, 6580 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 4 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8957 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:11,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8957 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 566 Invalid, 35 Unknown, 0 Unchecked, 117.5s Time] [2022-07-23 01:21:11,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-07-23 01:21:11,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1628. [2022-07-23 01:21:11,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1103 states have (on average 1.388032638259293) internal successors, (1531), 1147 states have internal predecessors, (1531), 439 states have call successors, (439), 86 states have call predecessors, (439), 85 states have return successors, (430), 421 states have call predecessors, (430), 430 states have call successors, (430) [2022-07-23 01:21:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2400 transitions. [2022-07-23 01:21:11,884 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2400 transitions. Word has length 149 [2022-07-23 01:21:11,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:11,885 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2400 transitions. [2022-07-23 01:21:11,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2400 transitions. [2022-07-23 01:21:11,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-23 01:21:11,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:11,889 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:11,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:12,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:12,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:12,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:12,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1109194293, now seen corresponding path program 1 times [2022-07-23 01:21:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:12,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390643652] [2022-07-23 01:21:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:21:12,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:12,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:12,107 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) [2022-07-23 01:21:12,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 01:21:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:21:13,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 01:21:13,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 77 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-23 01:21:14,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:21:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-23 01:21:16,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:16,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390643652] [2022-07-23 01:21:16,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390643652] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:21:16,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:21:16,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-23 01:21:16,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806167082] [2022-07-23 01:21:16,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:21:16,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 01:21:16,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:16,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 01:21:16,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-23 01:21:16,665 INFO L87 Difference]: Start difference. First operand 1628 states and 2400 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-23 01:21:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:19,230 INFO L93 Difference]: Finished difference Result 3260 states and 4809 transitions. [2022-07-23 01:21:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:21:19,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 151 [2022-07-23 01:21:19,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:19,242 INFO L225 Difference]: With dead ends: 3260 [2022-07-23 01:21:19,242 INFO L226 Difference]: Without dead ends: 1640 [2022-07-23 01:21:19,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:21:19,252 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 52 mSDsluCounter, 11921 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 14309 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:19,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 14309 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-23 01:21:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-07-23 01:21:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1634. [2022-07-23 01:21:19,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1109 states have (on average 1.3868349864743013) internal successors, (1538), 1153 states have internal predecessors, (1538), 439 states have call successors, (439), 86 states have call predecessors, (439), 85 states have return successors, (430), 421 states have call predecessors, (430), 430 states have call successors, (430) [2022-07-23 01:21:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2407 transitions. [2022-07-23 01:21:19,303 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2407 transitions. Word has length 151 [2022-07-23 01:21:19,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:19,305 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 2407 transitions. [2022-07-23 01:21:19,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-23 01:21:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2407 transitions. [2022-07-23 01:21:19,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-23 01:21:19,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:19,308 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:19,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:19,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:19,528 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash 806146123, now seen corresponding path program 2 times [2022-07-23 01:21:19,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:19,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881915363] [2022-07-23 01:21:19,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:21:19,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:19,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:19,530 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) [2022-07-23 01:21:19,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 01:21:20,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:21:20,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:21:20,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:21:20,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:20,917 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-07-23 01:21:20,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:21:20,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:20,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881915363] [2022-07-23 01:21:20,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881915363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:21:20,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:21:20,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:21:20,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559248472] [2022-07-23 01:21:20,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:21:20,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:21:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:20,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:21:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:20,924 INFO L87 Difference]: Start difference. First operand 1634 states and 2407 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:21,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:21,282 INFO L93 Difference]: Finished difference Result 4723 states and 7275 transitions. [2022-07-23 01:21:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:21:21,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 163 [2022-07-23 01:21:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:21,302 INFO L225 Difference]: With dead ends: 4723 [2022-07-23 01:21:21,302 INFO L226 Difference]: Without dead ends: 3135 [2022-07-23 01:21:21,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:21,316 INFO L413 NwaCegarLoop]: 2806 mSDtfsCounter, 2235 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 5295 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:21,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 5295 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:21:21,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2022-07-23 01:21:21,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 3116. [2022-07-23 01:21:21,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2121 states have (on average 1.3927392739273927) internal successors, (2954), 2207 states have internal predecessors, (2954), 835 states have call successors, (835), 168 states have call predecessors, (835), 159 states have return successors, (956), 788 states have call predecessors, (956), 826 states have call successors, (956) [2022-07-23 01:21:21,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4745 transitions. [2022-07-23 01:21:21,438 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4745 transitions. Word has length 163 [2022-07-23 01:21:21,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:21,438 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4745 transitions. [2022-07-23 01:21:21,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:21,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4745 transitions. [2022-07-23 01:21:21,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-23 01:21:21,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:21,443 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:21,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-23 01:21:21,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:21,663 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:21,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1296385389, now seen corresponding path program 1 times [2022-07-23 01:21:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:21,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594002559] [2022-07-23 01:21:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:21:21,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:21,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:21,666 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) [2022-07-23 01:21:21,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 01:21:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:21:23,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:21:23,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:24,032 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 262 proven. 3 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-07-23 01:21:24,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:21:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-07-23 01:21:25,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:25,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594002559] [2022-07-23 01:21:25,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594002559] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:21:25,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:21:25,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-07-23 01:21:25,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218083808] [2022-07-23 01:21:25,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:21:25,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 01:21:25,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:25,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 01:21:25,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-23 01:21:25,112 INFO L87 Difference]: Start difference. First operand 3116 states and 4745 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-23 01:21:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:26,227 INFO L93 Difference]: Finished difference Result 6216 states and 9465 transitions. [2022-07-23 01:21:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 01:21:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 164 [2022-07-23 01:21:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:26,255 INFO L225 Difference]: With dead ends: 6216 [2022-07-23 01:21:26,255 INFO L226 Difference]: Without dead ends: 3116 [2022-07-23 01:21:26,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-23 01:21:26,275 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 20 mSDsluCounter, 11890 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14271 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:26,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14271 Invalid, 83 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 01:21:26,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-23 01:21:26,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-07-23 01:21:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2121 states have (on average 1.3908533710513908) internal successors, (2950), 2207 states have internal predecessors, (2950), 835 states have call successors, (835), 168 states have call predecessors, (835), 159 states have return successors, (956), 788 states have call predecessors, (956), 826 states have call successors, (956) [2022-07-23 01:21:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4741 transitions. [2022-07-23 01:21:26,433 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4741 transitions. Word has length 164 [2022-07-23 01:21:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:26,433 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4741 transitions. [2022-07-23 01:21:26,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-23 01:21:26,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4741 transitions. [2022-07-23 01:21:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-23 01:21:26,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:26,437 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:26,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:26,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:26,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:26,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:26,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1126223917, now seen corresponding path program 2 times [2022-07-23 01:21:26,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:26,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518912875] [2022-07-23 01:21:26,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:21:26,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:26,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:26,664 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) [2022-07-23 01:21:26,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 01:21:27,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:21:27,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:21:27,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:21:27,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-23 01:21:28,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:21:28,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:28,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518912875] [2022-07-23 01:21:28,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518912875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:21:28,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:21:28,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:21:28,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283341170] [2022-07-23 01:21:28,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:21:28,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:21:28,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:28,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:21:28,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:28,183 INFO L87 Difference]: Start difference. First operand 3116 states and 4741 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:28,614 INFO L93 Difference]: Finished difference Result 7764 states and 12276 transitions. [2022-07-23 01:21:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:21:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 166 [2022-07-23 01:21:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:28,649 INFO L225 Difference]: With dead ends: 7764 [2022-07-23 01:21:28,649 INFO L226 Difference]: Without dead ends: 4694 [2022-07-23 01:21:28,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:28,674 INFO L413 NwaCegarLoop]: 2805 mSDtfsCounter, 2361 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:28,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 5298 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:21:28,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-07-23 01:21:28,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4675. [2022-07-23 01:21:28,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4675 states, 3180 states have (on average 1.389937106918239) internal successors, (4420), 3303 states have internal predecessors, (4420), 1252 states have call successors, (1252), 251 states have call predecessors, (1252), 242 states have return successors, (1597), 1195 states have call predecessors, (1597), 1243 states have call successors, (1597) [2022-07-23 01:21:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 7269 transitions. [2022-07-23 01:21:28,912 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 7269 transitions. Word has length 166 [2022-07-23 01:21:28,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:28,913 INFO L495 AbstractCegarLoop]: Abstraction has 4675 states and 7269 transitions. [2022-07-23 01:21:28,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:28,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 7269 transitions. [2022-07-23 01:21:28,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-23 01:21:28,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:28,916 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:28,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:29,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:29,136 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:29,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1579180554, now seen corresponding path program 1 times [2022-07-23 01:21:29,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:29,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353819374] [2022-07-23 01:21:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:21:29,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:29,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:29,139 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) [2022-07-23 01:21:29,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 01:21:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:21:32,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:21:32,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-23 01:21:32,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:21:32,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:32,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353819374] [2022-07-23 01:21:32,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353819374] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:21:32,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:21:32,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:21:32,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050976058] [2022-07-23 01:21:32,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:21:32,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:21:32,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:32,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:21:32,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:32,694 INFO L87 Difference]: Start difference. First operand 4675 states and 7269 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 01:21:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:33,161 INFO L93 Difference]: Finished difference Result 13431 states and 20925 transitions. [2022-07-23 01:21:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:21:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 166 [2022-07-23 01:21:33,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:33,235 INFO L225 Difference]: With dead ends: 13431 [2022-07-23 01:21:33,235 INFO L226 Difference]: Without dead ends: 8802 [2022-07-23 01:21:33,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:33,270 INFO L413 NwaCegarLoop]: 2856 mSDtfsCounter, 2171 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 5154 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:33,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 5154 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 01:21:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8802 states. [2022-07-23 01:21:33,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8802 to 8779. [2022-07-23 01:21:33,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8779 states, 5989 states have (on average 1.3983970612790115) internal successors, (8375), 6219 states have internal predecessors, (8375), 2325 states have call successors, (2325), 481 states have call predecessors, (2325), 464 states have return successors, (2981), 2223 states have call predecessors, (2981), 2316 states have call successors, (2981) [2022-07-23 01:21:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8779 states to 8779 states and 13681 transitions. [2022-07-23 01:21:33,669 INFO L78 Accepts]: Start accepts. Automaton has 8779 states and 13681 transitions. Word has length 166 [2022-07-23 01:21:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:33,673 INFO L495 AbstractCegarLoop]: Abstraction has 8779 states and 13681 transitions. [2022-07-23 01:21:33,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-23 01:21:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 8779 states and 13681 transitions. [2022-07-23 01:21:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-23 01:21:33,676 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:33,676 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:33,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:33,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:33,904 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:33,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:33,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1337346782, now seen corresponding path program 1 times [2022-07-23 01:21:33,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:33,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7920185] [2022-07-23 01:21:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:21:33,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:33,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:33,908 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) [2022-07-23 01:21:33,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 01:21:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:21:37,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:21:37,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-23 01:21:37,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:21:37,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:37,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7920185] [2022-07-23 01:21:37,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7920185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:21:37,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:21:37,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:21:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555899178] [2022-07-23 01:21:37,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:21:37,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:21:37,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:37,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:21:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:37,448 INFO L87 Difference]: Start difference. First operand 8779 states and 13681 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:37,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:37,981 INFO L93 Difference]: Finished difference Result 20473 states and 33126 transitions. [2022-07-23 01:21:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:21:37,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 167 [2022-07-23 01:21:37,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:38,043 INFO L225 Difference]: With dead ends: 20473 [2022-07-23 01:21:38,043 INFO L226 Difference]: Without dead ends: 11740 [2022-07-23 01:21:38,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:38,102 INFO L413 NwaCegarLoop]: 2802 mSDtfsCounter, 2362 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 5295 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:38,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 5295 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:21:38,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2022-07-23 01:21:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11721. [2022-07-23 01:21:38,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11721 states, 7995 states have (on average 1.396998123827392) internal successors, (11169), 8296 states have internal predecessors, (11169), 3101 states have call successors, (3101), 641 states have call predecessors, (3101), 624 states have return successors, (4296), 2980 states have call predecessors, (4296), 3092 states have call successors, (4296) [2022-07-23 01:21:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11721 states to 11721 states and 18566 transitions. [2022-07-23 01:21:38,659 INFO L78 Accepts]: Start accepts. Automaton has 11721 states and 18566 transitions. Word has length 167 [2022-07-23 01:21:38,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:38,660 INFO L495 AbstractCegarLoop]: Abstraction has 11721 states and 18566 transitions. [2022-07-23 01:21:38,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 11721 states and 18566 transitions. [2022-07-23 01:21:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-23 01:21:38,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:38,663 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:38,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:38,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:38,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:38,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash -69869020, now seen corresponding path program 1 times [2022-07-23 01:21:38,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:38,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367653771] [2022-07-23 01:21:38,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:21:38,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:38,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:38,888 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:21:38,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 01:21:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:21:41,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:21:41,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-23 01:21:41,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:21:41,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:41,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367653771] [2022-07-23 01:21:41,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367653771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:21:41,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:21:41,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:21:41,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432920557] [2022-07-23 01:21:41,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:21:41,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:21:41,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:41,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:21:41,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:41,999 INFO L87 Difference]: Start difference. First operand 11721 states and 18566 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:42,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:42,747 INFO L93 Difference]: Finished difference Result 26351 states and 43316 transitions. [2022-07-23 01:21:42,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:21:42,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 168 [2022-07-23 01:21:42,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:42,825 INFO L225 Difference]: With dead ends: 26351 [2022-07-23 01:21:42,825 INFO L226 Difference]: Without dead ends: 14676 [2022-07-23 01:21:42,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:42,897 INFO L413 NwaCegarLoop]: 2800 mSDtfsCounter, 2363 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:42,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 5293 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 01:21:42,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-07-23 01:21:43,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 14657. [2022-07-23 01:21:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14657 states, 9999 states have (on average 1.395839583958396) internal successors, (13957), 10371 states have internal predecessors, (13957), 3873 states have call successors, (3873), 801 states have call predecessors, (3873), 784 states have return successors, (5587), 3733 states have call predecessors, (5587), 3864 states have call successors, (5587) [2022-07-23 01:21:43,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14657 states to 14657 states and 23417 transitions. [2022-07-23 01:21:43,623 INFO L78 Accepts]: Start accepts. Automaton has 14657 states and 23417 transitions. Word has length 168 [2022-07-23 01:21:43,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:43,623 INFO L495 AbstractCegarLoop]: Abstraction has 14657 states and 23417 transitions. [2022-07-23 01:21:43,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-23 01:21:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 14657 states and 23417 transitions. [2022-07-23 01:21:43,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-23 01:21:43,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:43,627 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:43,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:43,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:43,839 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:43,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:43,840 INFO L85 PathProgramCache]: Analyzing trace with hash -69115209, now seen corresponding path program 1 times [2022-07-23 01:21:43,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:43,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185454339] [2022-07-23 01:21:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:21:43,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:43,845 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:21:43,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 01:21:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:21:47,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:21:47,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-23 01:21:49,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:21:49,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:49,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185454339] [2022-07-23 01:21:49,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185454339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:21:49,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:21:49,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:21:49,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186401744] [2022-07-23 01:21:49,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:21:49,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:21:49,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:21:49,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:49,101 INFO L87 Difference]: Start difference. First operand 14657 states and 23417 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-23 01:21:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:49,390 INFO L93 Difference]: Finished difference Result 14721 states and 23459 transitions. [2022-07-23 01:21:49,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:21:49,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 168 [2022-07-23 01:21:49,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:49,457 INFO L225 Difference]: With dead ends: 14721 [2022-07-23 01:21:49,457 INFO L226 Difference]: Without dead ends: 14717 [2022-07-23 01:21:49,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:49,468 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 2286 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:49,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 2405 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 01:21:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14717 states. [2022-07-23 01:21:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14717 to 14715. [2022-07-23 01:21:50,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14715 states, 10039 states have (on average 1.3931666500647475) internal successors, (13986), 10409 states have internal predecessors, (13986), 3871 states have call successors, (3871), 821 states have call predecessors, (3871), 804 states have return successors, (5587), 3733 states have call predecessors, (5587), 3864 states have call successors, (5587) [2022-07-23 01:21:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14715 states to 14715 states and 23444 transitions. [2022-07-23 01:21:50,251 INFO L78 Accepts]: Start accepts. Automaton has 14715 states and 23444 transitions. Word has length 168 [2022-07-23 01:21:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:21:50,251 INFO L495 AbstractCegarLoop]: Abstraction has 14715 states and 23444 transitions. [2022-07-23 01:21:50,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-23 01:21:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 14715 states and 23444 transitions. [2022-07-23 01:21:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-23 01:21:50,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:21:50,255 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:21:50,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 01:21:50,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:21:50,474 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:21:50,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:21:50,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2143673234, now seen corresponding path program 1 times [2022-07-23 01:21:50,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:21:50,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122863882] [2022-07-23 01:21:50,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:21:50,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:21:50,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:21:50,477 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 01:21:50,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 01:21:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:21:53,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:21:53,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:21:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-23 01:21:56,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:21:56,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:21:56,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122863882] [2022-07-23 01:21:56,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122863882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:21:56,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:21:56,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:21:56,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020879084] [2022-07-23 01:21:56,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:21:56,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:21:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:21:56,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:21:56,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:56,003 INFO L87 Difference]: Start difference. First operand 14715 states and 23444 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-23 01:21:56,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:21:56,368 INFO L93 Difference]: Finished difference Result 14717 states and 23445 transitions. [2022-07-23 01:21:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:21:56,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 169 [2022-07-23 01:21:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:21:56,470 INFO L225 Difference]: With dead ends: 14717 [2022-07-23 01:21:56,471 INFO L226 Difference]: Without dead ends: 14714 [2022-07-23 01:21:56,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:21:56,488 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 2306 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:21:56,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 2380 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 01:21:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14714 states.