./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.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-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.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 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:25:16,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:25:16,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:25:16,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:25:16,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:25:16,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:25:16,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:25:16,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:25:16,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:25:16,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:25:16,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:25:16,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:25:16,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:25:16,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:25:16,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:25:16,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:25:16,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:25:16,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:25:16,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:25:16,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:25:16,902 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:25:16,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:25:16,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:25:16,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:25:16,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:25:16,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:25:16,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:25:16,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:25:16,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:25:16,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:25:16,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:25:16,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:25:16,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:25:16,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:25:16,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:25:16,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:25:16,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:25:16,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:25:16,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:25:16,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:25:16,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:25:16,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:25:16,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:25:16,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:25:16,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:25:16,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:25:16,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:25:16,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:25:16,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:25:16,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:25:16,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:25:16,958 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:25:16,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:25:16,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:25:16,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:25:16,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:25:16,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:25:16,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:25:16,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:25:16,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:25:16,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:25:16,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:25:16,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:25:16,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:25:16,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:25:16,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:25:16,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:25:16,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:25:16,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:25:16,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:25:16,961 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:25:16,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:25:16,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:25:16,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2022-07-23 00:25:17,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:25:17,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:25:17,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:25:17,228 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:25:17,228 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:25:17,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:25:17,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303a6ebf9/9ebedca80e97472fb5beace363cd2dd0/FLAG0541e6b33 [2022-07-23 00:25:17,917 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:25:17,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:25:17,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303a6ebf9/9ebedca80e97472fb5beace363cd2dd0/FLAG0541e6b33 [2022-07-23 00:25:18,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303a6ebf9/9ebedca80e97472fb5beace363cd2dd0 [2022-07-23 00:25:18,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:25:18,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:25:18,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:25:18,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:25:18,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:25:18,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:25:18" (1/1) ... [2022-07-23 00:25:18,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707f6654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:18, skipping insertion in model container [2022-07-23 00:25:18,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:25:18" (1/1) ... [2022-07-23 00:25:18,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:25:18,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:25:20,273 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-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2022-07-23 00:25:20,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:25:20,349 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:25:20,637 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: base_addr = base_addr & 65534UL [5933] 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.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 00:25:20,649 INFO L158 Benchmark]: Toolchain (without parser) took 2337.45ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 107.0MB in the beginning and 100.5MB in the end (delta: 6.5MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-07-23 00:25:20,650 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 00:25:20,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2334.90ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 107.0MB in the beginning and 100.5MB in the end (delta: 6.5MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-07-23 00:25:20,652 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 88.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2334.90ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 107.0MB in the beginning and 100.5MB in the end (delta: 6.5MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: base_addr = base_addr & 65534UL [5933] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: base_addr = base_addr & 65534UL [5933]: 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-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.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 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:25:22,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:25:22,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:25:22,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:25:22,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:25:22,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:25:22,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:25:22,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:25:22,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:25:22,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:25:22,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:25:22,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:25:22,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:25:22,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:25:22,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:25:22,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:25:22,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:25:22,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:25:22,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:25:22,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:25:22,410 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:25:22,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:25:22,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:25:22,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:25:22,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:25:22,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:25:22,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:25:22,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:25:22,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:25:22,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:25:22,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:25:22,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:25:22,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:25:22,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:25:22,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:25:22,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:25:22,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:25:22,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:25:22,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:25:22,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:25:22,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:25:22,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:25:22,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 00:25:22,448 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:25:22,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:25:22,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:25:22,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:25:22,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:25:22,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:25:22,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:25:22,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:25:22,450 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:25:22,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:25:22,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:25:22,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:25:22,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:25:22,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:25:22,451 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 00:25:22,454 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 00:25:22,454 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 00:25:22,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:25:22,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:25:22,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:25:22,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:25:22,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:25:22,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:25:22,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:25:22,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:25:22,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:25:22,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:25:22,456 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 00:25:22,456 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 00:25:22,456 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:25:22,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:25:22,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:25:22,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 00:25:22,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2022-07-23 00:25:22,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:25:22,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:25:22,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:25:22,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:25:22,743 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:25:22,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:25:22,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c662e649/dd5a8d2ddff54a269bca684d64ae348a/FLAGaffb9da4c [2022-07-23 00:25:23,403 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:25:23,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:25:23,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c662e649/dd5a8d2ddff54a269bca684d64ae348a/FLAGaffb9da4c [2022-07-23 00:25:23,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c662e649/dd5a8d2ddff54a269bca684d64ae348a [2022-07-23 00:25:23,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:25:23,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:25:23,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:25:23,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:25:23,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:25:23,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:25:23" (1/1) ... [2022-07-23 00:25:23,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6d53d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:23, skipping insertion in model container [2022-07-23 00:25:23,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:25:23" (1/1) ... [2022-07-23 00:25:23,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:25:23,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:25:26,027 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-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2022-07-23 00:25:26,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:25:26,128 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 00:25:26,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:25:26,447 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-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2022-07-23 00:25:26,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:25:26,472 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:25:26,805 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-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2022-07-23 00:25:26,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:25:26,890 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:25:26,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26 WrapperNode [2022-07-23 00:25:26,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:25:26,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:25:26,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:25:26,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:25:26,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:26,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,136 INFO L137 Inliner]: procedures = 366, calls = 3277, calls flagged for inlining = 158, calls inlined = 158, statements flattened = 7004 [2022-07-23 00:25:27,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:25:27,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:25:27,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:25:27,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:25:27,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:25:27,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:25:27,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:25:27,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:25:27,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (1/1) ... [2022-07-23 00:25:27,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:25:27,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:25:27,408 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 00:25:27,423 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 00:25:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure smic_size [2022-07-23 00:25:27,457 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_size [2022-07-23 00:25:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-23 00:25:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-23 00:25:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UCHAR [2022-07-23 00:25:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UCHAR [2022-07-23 00:25:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure write_data [2022-07-23 00:25:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure write_data [2022-07-23 00:25:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2022-07-23 00:25:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2022-07-23 00:25:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 00:25:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_8 [2022-07-23 00:25:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_8 [2022-07-23 00:25:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 00:25:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-23 00:25:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-23 00:25:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 00:25:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:25:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2022-07-23 00:25:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2022-07-23 00:25:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:25:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-07-23 00:25:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-07-23 00:25:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure enable_si_irq [2022-07-23 00:25:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_si_irq [2022-07-23 00:25:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:25:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:25:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:25:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:25:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_msg_done [2022-07-23 00:25:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_msg_done [2022-07-23 00:25:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure start_enable_irq [2022-07-23 00:25:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure start_enable_irq [2022-07-23 00:25:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-23 00:25:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-23 00:25:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_30 [2022-07-23 00:25:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_30 [2022-07-23 00:25:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:25:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:25:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2022-07-23 00:25:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2022-07-23 00:25:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure smic_cleanup [2022-07-23 00:25:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_cleanup [2022-07-23 00:25:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2022-07-23 00:25:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2022-07-23 00:25:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2022-07-23 00:25:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2022-07-23 00:25:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2022-07-23 00:25:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2022-07-23 00:25:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2022-07-23 00:25:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2022-07-23 00:25:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure bt_size [2022-07-23 00:25:27,468 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_size [2022-07-23 00:25:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure bt_init_data [2022-07-23 00:25:27,468 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_init_data [2022-07-23 00:25:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_resume [2022-07-23 00:25:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_resume [2022-07-23 00:25:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure smic_detect [2022-07-23 00:25:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_detect [2022-07-23 00:25:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:25:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:25:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure request_events [2022-07-23 00:25:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure request_events [2022-07-23 00:25:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2022-07-23 00:25:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2022-07-23 00:25:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-23 00:25:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-23 00:25:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:25:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:25:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-07-23 00:25:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-07-23 00:25:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure check_hotmod_int_op [2022-07-23 00:25:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hotmod_int_op [2022-07-23 00:25:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure parse_str [2022-07-23 00:25:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_str [2022-07-23 00:25:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:25:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:25:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_detect [2022-07-23 00:25:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_detect [2022-07-23 00:25:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_size [2022-07-23 00:25:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_size [2022-07-23 00:25:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2022-07-23 00:25:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2022-07-23 00:25:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure error_recovery [2022-07-23 00:25:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure error_recovery [2022-07-23 00:25:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure disable_si_irq [2022-07-23 00:25:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_si_irq [2022-07-23 00:25:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery [2022-07-23 00:25:27,475 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery [2022-07-23 00:25:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2022-07-23 00:25:27,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2022-07-23 00:25:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure start_smic_transaction [2022-07-23 00:25:27,476 INFO L138 BoogieDeclarations]: Found implementation of procedure start_smic_transaction [2022-07-23 00:25:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-07-23 00:25:27,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-07-23 00:25:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:25:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 00:25:27,477 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 00:25:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure state2txt [2022-07-23 00:25:27,477 INFO L138 BoogieDeclarations]: Found implementation of procedure state2txt [2022-07-23 00:25:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:25:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_unregister_smi [2022-07-23 00:25:27,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_unregister_smi [2022-07-23 00:25:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_38 [2022-07-23 00:25:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_38 [2022-07-23 00:25:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 00:25:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 00:25:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-23 00:25:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-23 00:25:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:25:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:25:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-07-23 00:25:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-07-23 00:25:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 00:25:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 00:25:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-23 00:25:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-23 00:25:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-23 00:25:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-23 00:25:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:25:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 00:25:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:25:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure getnstimeofday [2022-07-23 00:25:27,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getnstimeofday [2022-07-23 00:25:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 00:25:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 00:25:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure start_next_msg [2022-07-23 00:25:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure start_next_msg [2022-07-23 00:25:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure init_smic_data [2022-07-23 00:25:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure init_smic_data [2022-07-23 00:25:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 00:25:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-07-23 00:25:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-23 00:25:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-23 00:25:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_cleanup [2022-07-23 00:25:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_cleanup [2022-07-23 00:25:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 00:25:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 00:25:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery___0 [2022-07-23 00:25:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery___0 [2022-07-23 00:25:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_integer [2022-07-23 00:25:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_integer [2022-07-23 00:25:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure write_cmd [2022-07-23 00:25:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure write_cmd [2022-07-23 00:25:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 00:25:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 00:25:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure bt_get_result [2022-07-23 00:25:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_get_result [2022-07-23 00:25:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2022-07-23 00:25:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2022-07-23 00:25:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure smic_get_result [2022-07-23 00:25:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_get_result [2022-07-23 00:25:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2022-07-23 00:25:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2022-07-23 00:25:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure check_obf [2022-07-23 00:25:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure check_obf [2022-07-23 00:25:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_add_proc_entry [2022-07-23 00:25:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_add_proc_entry [2022-07-23 00:25:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-07-23 00:25:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-07-23 00:25:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-23 00:25:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-23 00:25:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-07-23 00:25:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-07-23 00:25:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-23 00:25:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-23 00:25:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-07-23 00:25:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-07-23 00:25:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-07-23 00:25:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-07-23 00:25:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure get_kcs_result [2022-07-23 00:25:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure get_kcs_result [2022-07-23 00:25:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_timer_and_thread [2022-07-23 00:25:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_timer_and_thread [2022-07-23 00:25:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-23 00:25:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-23 00:25:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure bt_detect [2022-07-23 00:25:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_detect [2022-07-23 00:25:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2022-07-23 00:25:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2022-07-23 00:25:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:25:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:25:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 00:25:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure try_smi_init [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure try_smi_init [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure add_smi [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure add_smi [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure force_result [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure force_result [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_recv_msg [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_recv_msg [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure status2txt [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure status2txt [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-23 00:25:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-23 00:25:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure bt_start_transaction [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_start_transaction [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure start_kcs_transaction [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure start_kcs_transaction [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure start_clear_flags [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure start_clear_flags [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure bt_cleanup [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_cleanup [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2022-07-23 00:25:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:25:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_LONG~TO~C_INT [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_LONG~TO~C_INT [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_si_set_not_busy [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_si_set_not_busy [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:25:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 00:25:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-23 00:25:27,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-23 00:25:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_flags [2022-07-23 00:25:27,543 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_flags [2022-07-23 00:25:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-07-23 00:25:27,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-07-23 00:25:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_8 [2022-07-23 00:25:27,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_8 [2022-07-23 00:25:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_control [2022-07-23 00:25:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_control [2022-07-23 00:25:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-23 00:25:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-23 00:25:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure return_hosed_msg [2022-07-23 00:25:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure return_hosed_msg [2022-07-23 00:25:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2022-07-23 00:25:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2022-07-23 00:25:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte___0 [2022-07-23 00:25:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte___0 [2022-07-23 00:25:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure init_kcs_data [2022-07-23 00:25:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure init_kcs_data [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure si_irq_handler [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure si_irq_handler [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UCHAR~TO~VOID [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UCHAR~TO~VOID [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:25:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:25:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:25:28,459 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:25:28,464 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:25:35,028 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:26:33,734 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:26:33,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:26:33,762 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 00:26:33,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:26:33 BoogieIcfgContainer [2022-07-23 00:26:33,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:26:33,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:26:33,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:26:33,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:26:33,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:25:23" (1/3) ... [2022-07-23 00:26:33,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62193b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:26:33, skipping insertion in model container [2022-07-23 00:26:33,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:25:26" (2/3) ... [2022-07-23 00:26:33,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62193b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:26:33, skipping insertion in model container [2022-07-23 00:26:33,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:26:33" (3/3) ... [2022-07-23 00:26:33,774 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-23 00:26:33,786 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:26:33,786 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:26:33,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:26:33,879 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@433a3be8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5189217d [2022-07-23 00:26:33,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:26:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 2709 states, 1943 states have (on average 1.4173957797220793) internal successors, (2754), 2026 states have internal predecessors, (2754), 630 states have call successors, (630), 135 states have call predecessors, (630), 134 states have return successors, (615), 582 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-23 00:26:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-23 00:26:33,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:26:33,913 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:33,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:26:33,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:26:33,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1858181459, now seen corresponding path program 1 times [2022-07-23 00:26:33,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:26:33,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268709697] [2022-07-23 00:26:33,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:26:33,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:26:33,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:26:33,934 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 00:26:33,935 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 00:26:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:26:36,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-23 00:26:36,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:26:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-23 00:26:36,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:26:36,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:26:36,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268709697] [2022-07-23 00:26:36,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268709697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:26:36,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:26:36,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 00:26:36,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725048573] [2022-07-23 00:26:36,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:26:36,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 00:26:36,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:26:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 00:26:36,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 00:26:36,518 INFO L87 Difference]: Start difference. First operand has 2709 states, 1943 states have (on average 1.4173957797220793) internal successors, (2754), 2026 states have internal predecessors, (2754), 630 states have call successors, (630), 135 states have call predecessors, (630), 134 states have return successors, (615), 582 states have call predecessors, (615), 615 states have call successors, (615) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:26:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:26:36,690 INFO L93 Difference]: Finished difference Result 5414 states and 8185 transitions. [2022-07-23 00:26:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 00:26:36,692 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 285 [2022-07-23 00:26:36,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:26:36,713 INFO L225 Difference]: With dead ends: 5414 [2022-07-23 00:26:36,713 INFO L226 Difference]: Without dead ends: 2684 [2022-07-23 00:26:36,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 284 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 00:26:36,733 INFO L413 NwaCegarLoop]: 3995 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, 3995 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 00:26:36,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 00:26:36,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-07-23 00:26:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2684. [2022-07-23 00:26:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 1936 states have (on average 1.4080578512396693) internal successors, (2726), 2002 states have internal predecessors, (2726), 613 states have call successors, (613), 134 states have call predecessors, (613), 134 states have return successors, (613), 580 states have call predecessors, (613), 613 states have call successors, (613) [2022-07-23 00:26:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3952 transitions. [2022-07-23 00:26:36,870 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3952 transitions. Word has length 285 [2022-07-23 00:26:36,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:26:36,872 INFO L495 AbstractCegarLoop]: Abstraction has 2684 states and 3952 transitions. [2022-07-23 00:26:36,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:26:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3952 transitions. [2022-07-23 00:26:36,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-23 00:26:36,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:26:36,875 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:36,920 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 00:26:37,099 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 00:26:37,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:26:37,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:26:37,100 INFO L85 PathProgramCache]: Analyzing trace with hash -699617965, now seen corresponding path program 1 times [2022-07-23 00:26:37,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:26:37,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690862078] [2022-07-23 00:26:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:26:37,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:26:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:26:37,107 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 00:26:37,109 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 00:26:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:26:40,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 00:26:40,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:26:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-07-23 00:26:40,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:26:40,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:26:40,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690862078] [2022-07-23 00:26:40,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690862078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:26:40,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:26:40,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:26:40,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778742981] [2022-07-23 00:26:40,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:26:40,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:26:40,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:26:40,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:26:40,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:26:40,585 INFO L87 Difference]: Start difference. First operand 2684 states and 3952 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 00:26:41,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:26:41,471 INFO L93 Difference]: Finished difference Result 5342 states and 7962 transitions. [2022-07-23 00:26:41,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:26:41,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 285 [2022-07-23 00:26:41,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:26:41,487 INFO L225 Difference]: With dead ends: 5342 [2022-07-23 00:26:41,487 INFO L226 Difference]: Without dead ends: 2685 [2022-07-23 00:26:41,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:26:41,502 INFO L413 NwaCegarLoop]: 3935 mSDtfsCounter, 6 mSDsluCounter, 15701 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 19636 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:26:41,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 19636 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 00:26:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-07-23 00:26:41,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2685. [2022-07-23 00:26:41,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 1937 states have (on average 1.4078471863706763) internal successors, (2727), 2003 states have internal predecessors, (2727), 613 states have call successors, (613), 134 states have call predecessors, (613), 134 states have return successors, (613), 580 states have call predecessors, (613), 613 states have call successors, (613) [2022-07-23 00:26:41,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3953 transitions. [2022-07-23 00:26:41,584 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3953 transitions. Word has length 285 [2022-07-23 00:26:41,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:26:41,587 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 3953 transitions. [2022-07-23 00:26:41,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 00:26:41,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3953 transitions. [2022-07-23 00:26:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-23 00:26:41,591 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:26:41,591 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:41,641 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 00:26:41,819 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 00:26:41,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:26:41,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:26:41,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1670807165, now seen corresponding path program 1 times [2022-07-23 00:26:41,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:26:41,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495053746] [2022-07-23 00:26:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:26:41,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:26:41,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:26:41,832 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 00:26:41,833 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 00:26:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:26:45,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 00:26:45,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:26:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2022-07-23 00:26:45,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:26:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2022-07-23 00:26:46,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:26:46,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495053746] [2022-07-23 00:26:46,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495053746] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:26:46,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:26:46,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-23 00:26:46,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014318788] [2022-07-23 00:26:46,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:26:46,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:26:46,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:26:46,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:26:46,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:26:46,395 INFO L87 Difference]: Start difference. First operand 2685 states and 3953 transitions. Second operand has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:26:47,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:26:47,662 INFO L93 Difference]: Finished difference Result 5349 states and 7970 transitions. [2022-07-23 00:26:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:26:47,663 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 290 [2022-07-23 00:26:47,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:26:47,681 INFO L225 Difference]: With dead ends: 5349 [2022-07-23 00:26:47,681 INFO L226 Difference]: Without dead ends: 2691 [2022-07-23 00:26:47,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:26:47,696 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 8 mSDsluCounter, 23554 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27490 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:26:47,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27490 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-23 00:26:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-07-23 00:26:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2691. [2022-07-23 00:26:47,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 1941 states have (on average 1.4070066975785678) internal successors, (2731), 2007 states have internal predecessors, (2731), 614 states have call successors, (614), 135 states have call predecessors, (614), 135 states have return successors, (614), 581 states have call predecessors, (614), 614 states have call successors, (614) [2022-07-23 00:26:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3959 transitions. [2022-07-23 00:26:47,758 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3959 transitions. Word has length 290 [2022-07-23 00:26:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:26:47,759 INFO L495 AbstractCegarLoop]: Abstraction has 2691 states and 3959 transitions. [2022-07-23 00:26:47,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:26:47,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3959 transitions. [2022-07-23 00:26:47,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-23 00:26:47,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:26:47,764 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:47,818 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 00:26:47,991 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 00:26:47,992 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:26:47,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:26:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1856355437, now seen corresponding path program 2 times [2022-07-23 00:26:47,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:26:47,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646261443] [2022-07-23 00:26:47,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:26:47,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:26:47,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:26:47,997 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 00:26:47,998 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 00:26:50,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:26:50,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:26:50,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:26:50,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:26:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-07-23 00:26:50,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:26:50,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:26:50,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646261443] [2022-07-23 00:26:50,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646261443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:26:50,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:26:50,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:26:50,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367584022] [2022-07-23 00:26:50,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:26:50,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:26:50,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:26:50,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:26:50,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:26:50,263 INFO L87 Difference]: Start difference. First operand 2691 states and 3959 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:26:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:26:50,643 INFO L93 Difference]: Finished difference Result 7983 states and 12034 transitions. [2022-07-23 00:26:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:26:50,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 295 [2022-07-23 00:26:50,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:26:50,684 INFO L225 Difference]: With dead ends: 7983 [2022-07-23 00:26:50,685 INFO L226 Difference]: Without dead ends: 5334 [2022-07-23 00:26:50,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 293 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 00:26:50,707 INFO L413 NwaCegarLoop]: 4840 mSDtfsCounter, 3997 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3997 SdHoareTripleChecker+Valid, 8798 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:26:50,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3997 Valid, 8798 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 00:26:50,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-07-23 00:26:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5332. [2022-07-23 00:26:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5332 states, 3854 states have (on average 1.408406850025947) internal successors, (5428), 3984 states have internal predecessors, (5428), 1208 states have call successors, (1208), 270 states have call predecessors, (1208), 269 states have return successors, (1351), 1141 states have call predecessors, (1351), 1208 states have call successors, (1351) [2022-07-23 00:26:50,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 7987 transitions. [2022-07-23 00:26:50,870 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 7987 transitions. Word has length 295 [2022-07-23 00:26:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:26:50,873 INFO L495 AbstractCegarLoop]: Abstraction has 5332 states and 7987 transitions. [2022-07-23 00:26:50,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:26:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 7987 transitions. [2022-07-23 00:26:50,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-23 00:26:50,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:26:50,876 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:50,929 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 00:26:51,091 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 00:26:51,091 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:26:51,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:26:51,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1832893579, now seen corresponding path program 1 times [2022-07-23 00:26:51,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:26:51,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077226185] [2022-07-23 00:26:51,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:26:51,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:26:51,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:26:51,095 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 00:26:51,123 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 00:26:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:26:54,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 2804 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:26:54,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:26:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2022-07-23 00:26:54,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:26:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-07-23 00:26:55,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:26:55,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077226185] [2022-07-23 00:26:55,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077226185] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:26:55,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:26:55,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-23 00:26:55,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432338000] [2022-07-23 00:26:55,924 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:26:55,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 00:26:55,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:26:55,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 00:26:55,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:26:55,926 INFO L87 Difference]: Start difference. First operand 5332 states and 7987 transitions. Second operand has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:26:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:26:57,606 INFO L93 Difference]: Finished difference Result 10650 states and 16270 transitions. [2022-07-23 00:26:57,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 00:26:57,608 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 296 [2022-07-23 00:26:57,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:26:57,639 INFO L225 Difference]: With dead ends: 10650 [2022-07-23 00:26:57,639 INFO L226 Difference]: Without dead ends: 5334 [2022-07-23 00:26:57,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-07-23 00:26:57,676 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 9 mSDsluCounter, 31415 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35351 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:26:57,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35351 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-23 00:26:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-07-23 00:26:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5334. [2022-07-23 00:26:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 3856 states have (on average 1.408195020746888) internal successors, (5430), 3986 states have internal predecessors, (5430), 1208 states have call successors, (1208), 270 states have call predecessors, (1208), 269 states have return successors, (1351), 1141 states have call predecessors, (1351), 1208 states have call successors, (1351) [2022-07-23 00:26:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 7989 transitions. [2022-07-23 00:26:57,851 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 7989 transitions. Word has length 296 [2022-07-23 00:26:57,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:26:57,852 INFO L495 AbstractCegarLoop]: Abstraction has 5334 states and 7989 transitions. [2022-07-23 00:26:57,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:26:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 7989 transitions. [2022-07-23 00:26:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-23 00:26:57,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:26:57,856 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:57,928 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 00:26:58,075 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 00:26:58,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:26:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:26:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1595086069, now seen corresponding path program 2 times [2022-07-23 00:26:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:26:58,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339994152] [2022-07-23 00:26:58,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:26:58,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:26:58,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:26:58,080 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 00:26:58,081 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 00:27:00,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:27:00,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:27:00,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:27:00,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:27:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1362 trivial. 0 not checked. [2022-07-23 00:27:00,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:27:00,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:27:00,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339994152] [2022-07-23 00:27:00,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339994152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:27:00,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:27:00,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:27:00,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426127106] [2022-07-23 00:27:00,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:27:00,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:27:00,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:27:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:27:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:27:00,415 INFO L87 Difference]: Start difference. First operand 5334 states and 7989 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:27:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:27:00,984 INFO L93 Difference]: Finished difference Result 15914 states and 24928 transitions. [2022-07-23 00:27:00,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:27:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 301 [2022-07-23 00:27:00,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:27:01,077 INFO L225 Difference]: With dead ends: 15914 [2022-07-23 00:27:01,077 INFO L226 Difference]: Without dead ends: 10622 [2022-07-23 00:27:01,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 299 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 00:27:01,117 INFO L413 NwaCegarLoop]: 4674 mSDtfsCounter, 4001 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4001 SdHoareTripleChecker+Valid, 8632 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:27:01,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4001 Valid, 8632 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 00:27:01,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-07-23 00:27:01,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 10620. [2022-07-23 00:27:01,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10620 states, 7686 states have (on average 1.4086651053864168) internal successors, (10827), 7944 states have internal predecessors, (10827), 2395 states have call successors, (2395), 540 states have call predecessors, (2395), 538 states have return successors, (3229), 2263 states have call predecessors, (3229), 2395 states have call successors, (3229) [2022-07-23 00:27:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 16451 transitions. [2022-07-23 00:27:01,555 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 16451 transitions. Word has length 301 [2022-07-23 00:27:01,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:27:01,556 INFO L495 AbstractCegarLoop]: Abstraction has 10620 states and 16451 transitions. [2022-07-23 00:27:01,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:27:01,556 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 16451 transitions. [2022-07-23 00:27:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-23 00:27:01,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:27:01,561 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:01,654 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 00:27:01,783 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 00:27:01,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:27:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:27:01,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2035339211, now seen corresponding path program 1 times [2022-07-23 00:27:01,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:27:01,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775833029] [2022-07-23 00:27:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:27:01,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:27:01,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:27:01,790 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 00:27:01,793 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 00:27:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:27:05,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 2861 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 00:27:05,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:27:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-07-23 00:27:05,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:27:06,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2022-07-23 00:27:06,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:27:06,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775833029] [2022-07-23 00:27:06,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775833029] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:27:06,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:27:06,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-23 00:27:06,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741313808] [2022-07-23 00:27:06,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:27:06,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-23 00:27:06,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:27:06,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-23 00:27:06,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:27:06,995 INFO L87 Difference]: Start difference. First operand 10620 states and 16451 transitions. Second operand has 15 states, 13 states have (on average 6.0) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:27:09,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:27:09,625 INFO L93 Difference]: Finished difference Result 21244 states and 34060 transitions. [2022-07-23 00:27:09,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:27:09,627 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 302 [2022-07-23 00:27:09,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:27:09,694 INFO L225 Difference]: With dead ends: 21244 [2022-07-23 00:27:09,695 INFO L226 Difference]: Without dead ends: 10624 [2022-07-23 00:27:09,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-07-23 00:27:09,868 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 12 mSDsluCounter, 35334 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 39270 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:27:09,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39270 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-23 00:27:09,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2022-07-23 00:27:10,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 10624. [2022-07-23 00:27:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10624 states, 7690 states have (on average 1.4084525357607283) internal successors, (10831), 7948 states have internal predecessors, (10831), 2395 states have call successors, (2395), 540 states have call predecessors, (2395), 538 states have return successors, (3229), 2263 states have call predecessors, (3229), 2395 states have call successors, (3229) [2022-07-23 00:27:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10624 states to 10624 states and 16455 transitions. [2022-07-23 00:27:10,232 INFO L78 Accepts]: Start accepts. Automaton has 10624 states and 16455 transitions. Word has length 302 [2022-07-23 00:27:10,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:27:10,234 INFO L495 AbstractCegarLoop]: Abstraction has 10624 states and 16455 transitions. [2022-07-23 00:27:10,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-23 00:27:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand 10624 states and 16455 transitions. [2022-07-23 00:27:10,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-07-23 00:27:10,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:27:10,238 INFO L195 NwaCegarLoop]: trace histogram [20, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:10,325 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 00:27:10,458 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 00:27:10,459 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:27:10,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:27:10,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1499585355, now seen corresponding path program 2 times [2022-07-23 00:27:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:27:10,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220386604] [2022-07-23 00:27:10,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:27:10,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:27:10,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:27:10,470 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 00:27:10,471 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 00:27:12,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:27:12,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:27:12,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1965 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:27:12,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:27:13,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1472 trivial. 0 not checked. [2022-07-23 00:27:13,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:27:13,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:27:13,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220386604] [2022-07-23 00:27:13,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220386604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:27:13,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:27:13,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:27:13,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316842296] [2022-07-23 00:27:13,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:27:13,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:27:13,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:27:13,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:27:13,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:27:13,070 INFO L87 Difference]: Start difference. First operand 10624 states and 16455 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:27:14,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:27:14,018 INFO L93 Difference]: Finished difference Result 31783 states and 53476 transitions. [2022-07-23 00:27:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:27:14,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 307 [2022-07-23 00:27:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:27:14,302 INFO L225 Difference]: With dead ends: 31783 [2022-07-23 00:27:14,315 INFO L226 Difference]: Without dead ends: 21201 [2022-07-23 00:27:14,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 305 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 00:27:14,537 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 4002 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:27:14,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4002 Valid, 8568 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 00:27:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21201 states. [2022-07-23 00:27:15,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21201 to 21199. [2022-07-23 00:27:15,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21199 states, 15355 states have (on average 1.408466297622924) internal successors, (21627), 15867 states have internal predecessors, (21627), 4767 states have call successors, (4767), 1080 states have call predecessors, (4767), 1076 states have return successors, (8561), 4507 states have call predecessors, (8561), 4767 states have call successors, (8561) [2022-07-23 00:27:15,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21199 states to 21199 states and 34955 transitions. [2022-07-23 00:27:15,713 INFO L78 Accepts]: Start accepts. Automaton has 21199 states and 34955 transitions. Word has length 307 [2022-07-23 00:27:15,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:27:15,714 INFO L495 AbstractCegarLoop]: Abstraction has 21199 states and 34955 transitions. [2022-07-23 00:27:15,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:27:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 21199 states and 34955 transitions. [2022-07-23 00:27:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-07-23 00:27:15,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:27:15,718 INFO L195 NwaCegarLoop]: trace histogram [20, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:15,789 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 00:27:15,936 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 00:27:15,937 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:27:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:27:15,937 INFO L85 PathProgramCache]: Analyzing trace with hash -301667027, now seen corresponding path program 1 times [2022-07-23 00:27:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:27:15,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968884985] [2022-07-23 00:27:15,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:27:15,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:27:15,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:27:15,942 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 00:27:15,943 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 00:27:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:27:20,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 00:27:20,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:27:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 225 proven. 10 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-23 00:27:21,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:27:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 93 proven. 41 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-23 00:27:22,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:27:22,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968884985] [2022-07-23 00:27:22,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968884985] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:27:22,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:27:22,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-23 00:27:22,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540047233] [2022-07-23 00:27:22,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:27:22,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 00:27:22,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:27:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 00:27:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:27:22,979 INFO L87 Difference]: Start difference. First operand 21199 states and 34955 transitions. Second operand has 17 states, 15 states have (on average 5.4) internal successors, (81), 17 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-23 00:27:25,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:27:25,490 INFO L93 Difference]: Finished difference Result 42462 states and 74388 transitions. [2022-07-23 00:27:25,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 00:27:25,492 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 5.4) internal successors, (81), 17 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 308 [2022-07-23 00:27:25,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:27:25,680 INFO L225 Difference]: With dead ends: 42462 [2022-07-23 00:27:25,681 INFO L226 Difference]: Without dead ends: 21271 [2022-07-23 00:27:25,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 599 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-23 00:27:25,903 INFO L413 NwaCegarLoop]: 3935 mSDtfsCounter, 24 mSDsluCounter, 31429 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35364 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:27:25,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 35364 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-23 00:27:25,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21271 states. [2022-07-23 00:27:27,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21271 to 21271. [2022-07-23 00:27:27,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21271 states, 15419 states have (on average 1.4072897075037292) internal successors, (21699), 15931 states have internal predecessors, (21699), 4767 states have call successors, (4767), 1088 states have call predecessors, (4767), 1084 states have return successors, (8561), 4507 states have call predecessors, (8561), 4767 states have call successors, (8561) [2022-07-23 00:27:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21271 states to 21271 states and 35027 transitions. [2022-07-23 00:27:27,284 INFO L78 Accepts]: Start accepts. Automaton has 21271 states and 35027 transitions. Word has length 308 [2022-07-23 00:27:27,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:27:27,285 INFO L495 AbstractCegarLoop]: Abstraction has 21271 states and 35027 transitions. [2022-07-23 00:27:27,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 5.4) internal successors, (81), 17 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-23 00:27:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 21271 states and 35027 transitions. [2022-07-23 00:27:27,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-07-23 00:27:27,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:27:27,288 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:27,354 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 00:27:27,503 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 00:27:27,503 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:27:27,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:27:27,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1598680819, now seen corresponding path program 2 times [2022-07-23 00:27:27,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:27:27,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361755544] [2022-07-23 00:27:27,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:27:27,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:27:27,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:27:27,516 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 00:27:27,519 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 00:27:29,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:27:29,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:27:29,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 00:27:29,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:27:30,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1497 trivial. 0 not checked. [2022-07-23 00:27:30,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:27:30,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:27:30,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361755544] [2022-07-23 00:27:30,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361755544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:27:30,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:27:30,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 00:27:30,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797514744] [2022-07-23 00:27:30,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:27:30,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:27:30,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:27:30,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:27:30,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 00:27:30,052 INFO L87 Difference]: Start difference. First operand 21271 states and 35027 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:27:31,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:27:31,850 INFO L93 Difference]: Finished difference Result 63717 states and 121613 transitions. [2022-07-23 00:27:31,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:27:31,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 309 [2022-07-23 00:27:31,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:27:32,244 INFO L225 Difference]: With dead ends: 63717 [2022-07-23 00:27:32,244 INFO L226 Difference]: Without dead ends: 42488 [2022-07-23 00:27:32,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 307 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 00:27:32,523 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 4003 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4003 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:27:32,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4003 Valid, 8568 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 00:27:32,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42488 states. [2022-07-23 00:27:34,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42488 to 42486. [2022-07-23 00:27:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42486 states, 30812 states have (on average 1.4070816564974684) internal successors, (43355), 31828 states have internal predecessors, (43355), 9505 states have call successors, (9505), 2175 states have call predecessors, (9505), 2168 states have return successors, (25424), 8994 states have call predecessors, (25424), 9505 states have call successors, (25424) [2022-07-23 00:27:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42486 states to 42486 states and 78284 transitions. [2022-07-23 00:27:34,900 INFO L78 Accepts]: Start accepts. Automaton has 42486 states and 78284 transitions. Word has length 309 [2022-07-23 00:27:34,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:27:34,901 INFO L495 AbstractCegarLoop]: Abstraction has 42486 states and 78284 transitions. [2022-07-23 00:27:34,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:27:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 42486 states and 78284 transitions. [2022-07-23 00:27:34,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-23 00:27:34,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:27:34,907 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:34,971 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 00:27:35,117 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 00:27:35,118 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:27:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:27:35,118 INFO L85 PathProgramCache]: Analyzing trace with hash -315903827, now seen corresponding path program 1 times [2022-07-23 00:27:35,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:27:35,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334650104] [2022-07-23 00:27:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:27:35,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:27:35,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:27:35,121 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 00:27:35,127 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 00:27:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:27:40,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 00:27:40,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:27:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 245 proven. 15 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-23 00:27:40,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:27:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 108 proven. 51 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-23 00:27:43,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:27:43,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334650104] [2022-07-23 00:27:43,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334650104] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:27:43,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:27:43,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-23 00:27:43,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698328145] [2022-07-23 00:27:43,014 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:27:43,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 00:27:43,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:27:43,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 00:27:43,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-23 00:27:43,015 INFO L87 Difference]: Start difference. First operand 42486 states and 78284 transitions. Second operand has 19 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 19 states have internal predecessors, (86), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-23 00:27:47,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:27:47,274 INFO L93 Difference]: Finished difference Result 85030 states and 173569 transitions. [2022-07-23 00:27:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 00:27:47,276 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 19 states have internal predecessors, (86), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 313 [2022-07-23 00:27:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:27:47,560 INFO L225 Difference]: With dead ends: 85030 [2022-07-23 00:27:47,560 INFO L226 Difference]: Without dead ends: 42502 [2022-07-23 00:27:48,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-23 00:27:48,386 INFO L413 NwaCegarLoop]: 3935 mSDtfsCounter, 32 mSDsluCounter, 35349 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 39284 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:27:48,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 39284 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-23 00:27:48,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42502 states. [2022-07-23 00:27:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42502 to 42502. [2022-07-23 00:27:49,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42502 states, 30828 states have (on average 1.4068703775788245) internal successors, (43371), 31844 states have internal predecessors, (43371), 9505 states have call successors, (9505), 2175 states have call predecessors, (9505), 2168 states have return successors, (25424), 8994 states have call predecessors, (25424), 9505 states have call successors, (25424) [2022-07-23 00:27:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42502 states to 42502 states and 78300 transitions. [2022-07-23 00:27:50,222 INFO L78 Accepts]: Start accepts. Automaton has 42502 states and 78300 transitions. Word has length 313 [2022-07-23 00:27:50,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:27:50,224 INFO L495 AbstractCegarLoop]: Abstraction has 42502 states and 78300 transitions. [2022-07-23 00:27:50,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 19 states have internal predecessors, (86), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-23 00:27:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 42502 states and 78300 transitions. [2022-07-23 00:27:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-07-23 00:27:50,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:27:50,226 INFO L195 NwaCegarLoop]: trace histogram [22, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:50,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-23 00:27:50,439 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 00:27:50,440 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:27:50,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:27:50,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2029385933, now seen corresponding path program 2 times [2022-07-23 00:27:50,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:27:50,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854176407] [2022-07-23 00:27:50,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 00:27:50,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:27:50,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:27:50,443 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 00:27:50,444 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 00:27:52,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 00:27:52,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 00:27:52,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 00:27:52,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:27:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2022-07-23 00:27:55,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:27:55,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:27:55,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854176407] [2022-07-23 00:27:55,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854176407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:27:55,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:27:55,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 00:27:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076438345] [2022-07-23 00:27:55,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:27:55,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:27:55,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:27:55,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:27:55,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:27:55,314 INFO L87 Difference]: Start difference. First operand 42502 states and 78300 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:27:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:27:59,816 INFO L93 Difference]: Finished difference Result 127518 states and 300954 transitions. [2022-07-23 00:27:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:27:59,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 314 [2022-07-23 00:27:59,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:28:00,984 INFO L225 Difference]: With dead ends: 127518 [2022-07-23 00:28:00,984 INFO L226 Difference]: Without dead ends: 85058 [2022-07-23 00:28:02,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:28:02,174 INFO L413 NwaCegarLoop]: 4913 mSDtfsCounter, 3924 mSDsluCounter, 13769 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3924 SdHoareTripleChecker+Valid, 18682 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:28:02,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3924 Valid, 18682 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 00:28:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85058 states. [2022-07-23 00:28:06,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85058 to 84896. [2022-07-23 00:28:06,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84896 states, 61552 states have (on average 1.4062581232128932) internal successors, (86558), 63664 states have internal predecessors, (86558), 18991 states have call successors, (18991), 4366 states have call predecessors, (18991), 4352 states have return successors, (81901), 17857 states have call predecessors, (81901), 18991 states have call successors, (81901) [2022-07-23 00:28:08,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84896 states to 84896 states and 187450 transitions. [2022-07-23 00:28:08,220 INFO L78 Accepts]: Start accepts. Automaton has 84896 states and 187450 transitions. Word has length 314 [2022-07-23 00:28:08,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:28:08,220 INFO L495 AbstractCegarLoop]: Abstraction has 84896 states and 187450 transitions. [2022-07-23 00:28:08,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-23 00:28:08,221 INFO L276 IsEmpty]: Start isEmpty. Operand 84896 states and 187450 transitions. [2022-07-23 00:28:08,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-07-23 00:28:08,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:28:08,223 INFO L195 NwaCegarLoop]: trace histogram [22, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:28:08,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-23 00:28:08,433 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 00:28:08,433 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:28:08,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:28:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1294263860, now seen corresponding path program 1 times [2022-07-23 00:28:08,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 00:28:08,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468864981] [2022-07-23 00:28:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:28:08,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 00:28:08,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 00:28:08,436 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 00:28:08,438 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 00:28:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:28:12,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 00:28:12,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:28:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 265 proven. 21 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-23 00:28:13,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 00:28:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 123 proven. 62 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-23 00:28:16,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 00:28:16,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468864981] [2022-07-23 00:28:16,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468864981] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 00:28:16,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 00:28:16,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-07-23 00:28:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799969021] [2022-07-23 00:28:16,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 00:28:16,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-23 00:28:16,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 00:28:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-23 00:28:16,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-07-23 00:28:16,316 INFO L87 Difference]: Start difference. First operand 84896 states and 187450 transitions. Second operand has 21 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 21 states have internal predecessors, (90), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-23 00:28:25,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:28:25,643 INFO L93 Difference]: Finished difference Result 169946 states and 439901 transitions. [2022-07-23 00:28:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-23 00:28:25,644 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 21 states have internal predecessors, (90), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 315 [2022-07-23 00:28:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:28:26,610 INFO L225 Difference]: With dead ends: 169946 [2022-07-23 00:28:26,611 INFO L226 Difference]: Without dead ends: 84928 [2022-07-23 00:28:29,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-07-23 00:28:29,458 INFO L413 NwaCegarLoop]: 3935 mSDtfsCounter, 41 mSDsluCounter, 43223 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 47158 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:28:29,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 47158 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-23 00:28:29,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84928 states. [2022-07-23 00:28:33,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84928 to 84928. [2022-07-23 00:28:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84928 states, 61584 states have (on average 1.406047025201351) internal successors, (86590), 63696 states have internal predecessors, (86590), 18991 states have call successors, (18991), 4366 states have call predecessors, (18991), 4352 states have return successors, (81901), 17857 states have call predecessors, (81901), 18991 states have call successors, (81901)