./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 35987657 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-?-3598765 [2022-07-21 11:41:48,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:41:48,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:41:48,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:41:48,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:41:48,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:41:48,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:41:48,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:41:48,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:41:48,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:41:48,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:41:48,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:41:48,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:41:48,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:41:48,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:41:48,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:41:48,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:41:48,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:41:48,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:41:48,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:41:48,394 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:41:48,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:41:48,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:41:48,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:41:48,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:41:48,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:41:48,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:41:48,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:41:48,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:41:48,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:41:48,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:41:48,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:41:48,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:41:48,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:41:48,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:41:48,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:41:48,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:41:48,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:41:48,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:41:48,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:41:48,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:41:48,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:41:48,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:41:48,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:41:48,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:41:48,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:41:48,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:41:48,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:41:48,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:41:48,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:41:48,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:41:48,437 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:41:48,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:41:48,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:41:48,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:41:48,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:41:48,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:41:48,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:41:48,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:41:48,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:41:48,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:41:48,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:41:48,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:41:48,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:41:48,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:41:48,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:41:48,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:41:48,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:41:48,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:41:48,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:41:48,441 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:41:48,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:41:48,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:41:48,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2022-07-21 11:41:48,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:41:48,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:41:48,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:41:48,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:41:48,763 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:41:48,765 INFO L432 ainManager$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 [2022-07-21 11:41:48,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed7b7c24/545f4d362007406590b731a068cb0807/FLAGd0160f2eb [2022-07-21 11:41:49,522 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:41:49,522 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 [2022-07-21 11:41:49,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed7b7c24/545f4d362007406590b731a068cb0807/FLAGd0160f2eb [2022-07-21 11:41:49,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed7b7c24/545f4d362007406590b731a068cb0807 [2022-07-21 11:41:49,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:41:49,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:41:49,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:41:49,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:41:49,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:41:49,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:49" (1/1) ... [2022-07-21 11:41:49,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df2dd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:49, skipping insertion in model container [2022-07-21 11:41:49,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:49" (1/1) ... [2022-07-21 11:41:49,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:41:49,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:41:51,568 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] [2022-07-21 11:41:51,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:51,636 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:41:51,846 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) [2022-07-21 11:41:51,853 INFO L158 Benchmark]: Toolchain (without parser) took 2009.34ms. Allocated memory was 56.6MB in the beginning and 119.5MB in the end (delta: 62.9MB). Free memory was 35.8MB in the beginning and 55.3MB in the end (delta: -19.5MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2022-07-21 11:41:51,853 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 39.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:41:51,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2003.57ms. Allocated memory was 56.6MB in the beginning and 119.5MB in the end (delta: 62.9MB). Free memory was 35.6MB in the beginning and 55.3MB in the end (delta: -19.7MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2022-07-21 11:41:51,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 39.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2003.57ms. Allocated memory was 56.6MB in the beginning and 119.5MB in the end (delta: 62.9MB). Free memory was 35.6MB in the beginning and 55.3MB in the end (delta: -19.7MB). Peak memory consumption was 63.2MB. 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-?-3598765 [2022-07-21 11:41:53,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:41:53,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:41:53,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:41:53,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:41:53,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:41:53,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:41:53,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:41:53,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:41:53,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:41:53,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:41:53,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:41:53,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:41:53,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:41:53,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:41:53,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:41:53,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:41:53,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:41:53,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:41:53,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:41:53,556 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:41:53,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:41:53,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:41:53,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:41:53,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:41:53,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:41:53,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:41:53,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:41:53,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:41:53,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:41:53,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:41:53,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:41:53,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:41:53,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:41:53,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:41:53,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:41:53,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:41:53,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:41:53,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:41:53,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:41:53,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:41:53,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:41:53,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:41:53,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:41:53,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:41:53,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:41:53,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:41:53,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:41:53,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:41:53,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:41:53,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:41:53,610 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:41:53,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:41:53,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:41:53,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:41:53,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:41:53,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:41:53,612 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:41:53,612 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:41:53,612 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:41:53,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:41:53,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:41:53,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:41:53,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:41:53,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:41:53,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:41:53,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:41:53,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:41:53,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:41:53,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:41:53,614 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:41:53,614 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:41:53,615 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:41:53,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:41:53,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:41:53,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:41:53,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2022-07-21 11:41:53,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:41:53,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:41:53,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:41:53,919 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:41:53,920 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:41:53,921 INFO L432 ainManager$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 [2022-07-21 11:41:53,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aadc126a1/9442c7a0a1114f74ad355a92f7992e58/FLAG0295cea6f [2022-07-21 11:41:54,754 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:41:54,755 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 [2022-07-21 11:41:54,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aadc126a1/9442c7a0a1114f74ad355a92f7992e58/FLAG0295cea6f [2022-07-21 11:41:54,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aadc126a1/9442c7a0a1114f74ad355a92f7992e58 [2022-07-21 11:41:54,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:41:54,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:41:55,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:41:55,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:41:55,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:41:55,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:54" (1/1) ... [2022-07-21 11:41:55,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e55f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:55, skipping insertion in model container [2022-07-21 11:41:55,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:54" (1/1) ... [2022-07-21 11:41:55,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:41:55,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:41:56,687 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] [2022-07-21 11:41:56,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:56,755 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:41:56,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:41:57,200 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] [2022-07-21 11:41:57,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:57,226 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:41:57,635 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] [2022-07-21 11:41:57,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:57,732 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:41:57,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57 WrapperNode [2022-07-21 11:41:57,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:41:57,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:41:57,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:41:57,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:41:57,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:57,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,006 INFO L137 Inliner]: procedures = 366, calls = 3277, calls flagged for inlining = 158, calls inlined = 158, statements flattened = 7004 [2022-07-21 11:41:58,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:41:58,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:41:58,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:41:58,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:41:58,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:41:58,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:41:58,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:41:58,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:41:58,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (1/1) ... [2022-07-21 11:41:58,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:41:58,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:41:58,436 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) [2022-07-21 11:41:58,462 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 [2022-07-21 11:41:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure smic_size [2022-07-21 11:41:58,481 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_size [2022-07-21 11:41:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 11:41:58,482 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 11:41:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UCHAR [2022-07-21 11:41:58,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UCHAR [2022-07-21 11:41:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure write_data [2022-07-21 11:41:58,483 INFO L138 BoogieDeclarations]: Found implementation of procedure write_data [2022-07-21 11:41:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2022-07-21 11:41:58,483 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2022-07-21 11:41:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:41:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_8 [2022-07-21 11:41:58,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_8 [2022-07-21 11:41:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:41:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-21 11:41:58,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-21 11:41:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:41:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:41:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2022-07-21 11:41:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2022-07-21 11:41:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:41:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-07-21 11:41:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-07-21 11:41:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure enable_si_irq [2022-07-21 11:41:58,486 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_si_irq [2022-07-21 11:41:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:41:58,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:41:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 11:41:58,486 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 11:41:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_msg_done [2022-07-21 11:41:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_msg_done [2022-07-21 11:41:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure start_enable_irq [2022-07-21 11:41:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure start_enable_irq [2022-07-21 11:41:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-21 11:41:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-21 11:41:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_30 [2022-07-21 11:41:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_30 [2022-07-21 11:41:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:41:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:41:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2022-07-21 11:41:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2022-07-21 11:41:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure smic_cleanup [2022-07-21 11:41:58,489 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_cleanup [2022-07-21 11:41:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2022-07-21 11:41:58,489 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2022-07-21 11:41:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2022-07-21 11:41:58,490 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2022-07-21 11:41:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2022-07-21 11:41:58,491 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2022-07-21 11:41:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2022-07-21 11:41:58,492 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2022-07-21 11:41:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure bt_size [2022-07-21 11:41:58,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_size [2022-07-21 11:41:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure bt_init_data [2022-07-21 11:41:58,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_init_data [2022-07-21 11:41:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_resume [2022-07-21 11:41:58,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_resume [2022-07-21 11:41:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure smic_detect [2022-07-21 11:41:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_detect [2022-07-21 11:41:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:41:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:41:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure request_events [2022-07-21 11:41:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure request_events [2022-07-21 11:41:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2022-07-21 11:41:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2022-07-21 11:41:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 11:41:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 11:41:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:41:58,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:41:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-07-21 11:41:58,496 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-07-21 11:41:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure check_hotmod_int_op [2022-07-21 11:41:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hotmod_int_op [2022-07-21 11:41:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure parse_str [2022-07-21 11:41:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_str [2022-07-21 11:41:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:41:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:41:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_detect [2022-07-21 11:41:58,498 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_detect [2022-07-21 11:41:58,498 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_size [2022-07-21 11:41:58,498 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_size [2022-07-21 11:41:58,498 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2022-07-21 11:41:58,499 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2022-07-21 11:41:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure error_recovery [2022-07-21 11:41:58,499 INFO L138 BoogieDeclarations]: Found implementation of procedure error_recovery [2022-07-21 11:41:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure disable_si_irq [2022-07-21 11:41:58,499 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_si_irq [2022-07-21 11:41:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery [2022-07-21 11:41:58,500 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery [2022-07-21 11:41:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2022-07-21 11:41:58,500 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2022-07-21 11:41:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure start_smic_transaction [2022-07-21 11:41:58,501 INFO L138 BoogieDeclarations]: Found implementation of procedure start_smic_transaction [2022-07-21 11:41:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-07-21 11:41:58,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-07-21 11:41:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:41:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:41:58,501 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:41:58,502 INFO L130 BoogieDeclarations]: Found specification of procedure state2txt [2022-07-21 11:41:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure state2txt [2022-07-21 11:41:58,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:41:58,502 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_unregister_smi [2022-07-21 11:41:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_unregister_smi [2022-07-21 11:41:58,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_38 [2022-07-21 11:41:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_38 [2022-07-21 11:41:58,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 11:41:58,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 11:41:58,503 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-21 11:41:58,503 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-21 11:41:58,503 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:41:58,504 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:41:58,504 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-07-21 11:41:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-07-21 11:41:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:41:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:41:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-21 11:41:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-21 11:41:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-21 11:41:58,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-21 11:41:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:41:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:41:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:41:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure getnstimeofday [2022-07-21 11:41:58,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getnstimeofday [2022-07-21 11:41:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:41:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:41:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure start_next_msg [2022-07-21 11:41:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure start_next_msg [2022-07-21 11:41:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure init_smic_data [2022-07-21 11:41:58,515 INFO L138 BoogieDeclarations]: Found implementation of procedure init_smic_data [2022-07-21 11:41:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:41:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-07-21 11:41:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 11:41:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 11:41:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_cleanup [2022-07-21 11:41:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_cleanup [2022-07-21 11:41:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 11:41:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 11:41:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery___0 [2022-07-21 11:41:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery___0 [2022-07-21 11:41:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_integer [2022-07-21 11:41:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_integer [2022-07-21 11:41:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure write_cmd [2022-07-21 11:41:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure write_cmd [2022-07-21 11:41:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:41:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:41:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure bt_get_result [2022-07-21 11:41:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_get_result [2022-07-21 11:41:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2022-07-21 11:41:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2022-07-21 11:41:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure smic_get_result [2022-07-21 11:41:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_get_result [2022-07-21 11:41:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2022-07-21 11:41:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2022-07-21 11:41:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure check_obf [2022-07-21 11:41:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure check_obf [2022-07-21 11:41:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_add_proc_entry [2022-07-21 11:41:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_add_proc_entry [2022-07-21 11:41:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-07-21 11:41:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-07-21 11:41:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 11:41:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 11:41:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-07-21 11:41:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-07-21 11:41:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 11:41:58,521 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 11:41:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-07-21 11:41:58,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-07-21 11:41:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-07-21 11:41:58,521 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-07-21 11:41:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure get_kcs_result [2022-07-21 11:41:58,522 INFO L138 BoogieDeclarations]: Found implementation of procedure get_kcs_result [2022-07-21 11:41:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_timer_and_thread [2022-07-21 11:41:58,522 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_timer_and_thread [2022-07-21 11:41:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-21 11:41:58,522 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-21 11:41:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure bt_detect [2022-07-21 11:41:58,522 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_detect [2022-07-21 11:41:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2022-07-21 11:41:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2022-07-21 11:41:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:41:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:41:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 11:41:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 11:41:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-07-21 11:41:58,525 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-07-21 11:41:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-07-21 11:41:58,525 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-07-21 11:41:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2022-07-21 11:41:58,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2022-07-21 11:41:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure try_smi_init [2022-07-21 11:41:58,525 INFO L138 BoogieDeclarations]: Found implementation of procedure try_smi_init [2022-07-21 11:41:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure add_smi [2022-07-21 11:41:58,526 INFO L138 BoogieDeclarations]: Found implementation of procedure add_smi [2022-07-21 11:41:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure force_result [2022-07-21 11:41:58,526 INFO L138 BoogieDeclarations]: Found implementation of procedure force_result [2022-07-21 11:41:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-21 11:41:58,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-21 11:41:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:41:58,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:41:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_recv_msg [2022-07-21 11:41:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_recv_msg [2022-07-21 11:41:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure status2txt [2022-07-21 11:41:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure status2txt [2022-07-21 11:41:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2022-07-21 11:41:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2022-07-21 11:41:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 11:41:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 11:41:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure bt_start_transaction [2022-07-21 11:41:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_start_transaction [2022-07-21 11:41:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure start_kcs_transaction [2022-07-21 11:41:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure start_kcs_transaction [2022-07-21 11:41:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:41:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:41:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:41:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:41:58,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:41:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 11:41:58,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 11:41:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2022-07-21 11:41:58,529 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2022-07-21 11:41:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2022-07-21 11:41:58,530 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2022-07-21 11:41:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure start_clear_flags [2022-07-21 11:41:58,530 INFO L138 BoogieDeclarations]: Found implementation of procedure start_clear_flags [2022-07-21 11:41:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-21 11:41:58,530 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-21 11:41:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:41:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure bt_cleanup [2022-07-21 11:41:58,530 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_cleanup [2022-07-21 11:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2022-07-21 11:41:58,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2022-07-21 11:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 11:41:58,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 11:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-07-21 11:41:58,531 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-07-21 11:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_LONG~TO~C_INT [2022-07-21 11:41:58,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_LONG~TO~C_INT [2022-07-21 11:41:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:41:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 11:41:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 11:41:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte [2022-07-21 11:41:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte [2022-07-21 11:41:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2022-07-21 11:41:58,536 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2022-07-21 11:41:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 11:41:58,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 11:41:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_si_set_not_busy [2022-07-21 11:41:58,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_si_set_not_busy [2022-07-21 11:41:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:41:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:41:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:41:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:41:58,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:41:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:41:58,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:41:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:41:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-21 11:41:58,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-21 11:41:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_flags [2022-07-21 11:41:58,539 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_flags [2022-07-21 11:41:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-07-21 11:41:58,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-07-21 11:41:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_8 [2022-07-21 11:41:58,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_8 [2022-07-21 11:41:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_control [2022-07-21 11:41:58,540 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_control [2022-07-21 11:41:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 11:41:58,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 11:41:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure return_hosed_msg [2022-07-21 11:41:58,540 INFO L138 BoogieDeclarations]: Found implementation of procedure return_hosed_msg [2022-07-21 11:41:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2022-07-21 11:41:58,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2022-07-21 11:41:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte___0 [2022-07-21 11:41:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte___0 [2022-07-21 11:41:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure init_kcs_data [2022-07-21 11:41:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure init_kcs_data [2022-07-21 11:41:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure si_irq_handler [2022-07-21 11:41:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure si_irq_handler [2022-07-21 11:41:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:41:58,541 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:41:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UCHAR~TO~VOID [2022-07-21 11:41:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UCHAR~TO~VOID [2022-07-21 11:41:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2022-07-21 11:41:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2022-07-21 11:41:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:41:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-07-21 11:41:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-07-21 11:41:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-21 11:41:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-21 11:41:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-21 11:41:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-21 11:41:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2022-07-21 11:41:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2022-07-21 11:41:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:41:58,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:41:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 11:41:58,544 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 11:41:59,469 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:41:59,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:42:07,105 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:43:00,143 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:43:00,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:43:00,174 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:43:00,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:43:00 BoogieIcfgContainer [2022-07-21 11:43:00,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:43:00,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:43:00,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:43:00,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:43:00,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:41:54" (1/3) ... [2022-07-21 11:43:00,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2b0c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:43:00, skipping insertion in model container [2022-07-21 11:43:00,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:57" (2/3) ... [2022-07-21 11:43:00,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2b0c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:43:00, skipping insertion in model container [2022-07-21 11:43:00,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:43:00" (3/3) ... [2022-07-21 11:43:00,186 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 [2022-07-21 11:43:00,196 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:43:00,196 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:43:00,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:43:00,298 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@37e82280, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17632b86 [2022-07-21 11:43:00,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:43:00,310 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) [2022-07-21 11:43:00,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-21 11:43:00,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:00,342 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] [2022-07-21 11:43:00,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:00,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:00,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1858181459, now seen corresponding path program 1 times [2022-07-21 11:43:00,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:00,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235273539] [2022-07-21 11:43:00,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:00,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:00,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:00,373 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) [2022-07-21 11:43:00,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:43:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:02,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 11:43:02,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 11:43:02,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:02,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:02,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235273539] [2022-07-21 11:43:02,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235273539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:02,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:02,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:43:02,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412437447] [2022-07-21 11:43:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:02,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 11:43:02,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:03,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 11:43:03,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 11:43:03,029 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) [2022-07-21 11:43:03,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:03,209 INFO L93 Difference]: Finished difference Result 5414 states and 8185 transitions. [2022-07-21 11:43:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 11:43:03,211 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 [2022-07-21 11:43:03,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:03,238 INFO L225 Difference]: With dead ends: 5414 [2022-07-21 11:43:03,238 INFO L226 Difference]: Without dead ends: 2684 [2022-07-21 11:43:03,262 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 [2022-07-21 11:43:03,264 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 [2022-07-21 11:43:03,266 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] [2022-07-21 11:43:03,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-07-21 11:43:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2684. [2022-07-21 11:43:03,417 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) [2022-07-21 11:43:03,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3952 transitions. [2022-07-21 11:43:03,441 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3952 transitions. Word has length 285 [2022-07-21 11:43:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:03,442 INFO L495 AbstractCegarLoop]: Abstraction has 2684 states and 3952 transitions. [2022-07-21 11:43:03,442 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) [2022-07-21 11:43:03,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3952 transitions. [2022-07-21 11:43:03,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-21 11:43:03,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:03,447 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] [2022-07-21 11:43:03,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:03,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:03,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:03,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash -699617965, now seen corresponding path program 1 times [2022-07-21 11:43:03,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:03,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707291941] [2022-07-21 11:43:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:03,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:03,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:03,654 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) [2022-07-21 11:43:03,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:43:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:06,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 11:43:06,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:07,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-07-21 11:43:07,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:07,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:07,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707291941] [2022-07-21 11:43:07,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707291941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:07,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:07,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:43:07,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67721895] [2022-07-21 11:43:07,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:07,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:43:07,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:07,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:43:07,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:43:07,077 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) [2022-07-21 11:43:07,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:07,953 INFO L93 Difference]: Finished difference Result 5342 states and 7962 transitions. [2022-07-21 11:43:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:43:07,954 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 [2022-07-21 11:43:07,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:07,972 INFO L225 Difference]: With dead ends: 5342 [2022-07-21 11:43:07,972 INFO L226 Difference]: Without dead ends: 2685 [2022-07-21 11:43:07,988 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 [2022-07-21 11:43:07,989 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 [2022-07-21 11:43:07,990 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] [2022-07-21 11:43:07,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-07-21 11:43:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2685. [2022-07-21 11:43:08,058 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) [2022-07-21 11:43:08,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3953 transitions. [2022-07-21 11:43:08,083 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3953 transitions. Word has length 285 [2022-07-21 11:43:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:08,086 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 3953 transitions. [2022-07-21 11:43:08,087 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) [2022-07-21 11:43:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3953 transitions. [2022-07-21 11:43:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-21 11:43:08,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:08,091 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] [2022-07-21 11:43:08,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-21 11:43:08,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:08,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:08,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:08,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1670807165, now seen corresponding path program 1 times [2022-07-21 11:43:08,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:08,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413755] [2022-07-21 11:43:08,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:08,316 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:08,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:08,318 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) [2022-07-21 11:43:08,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:43:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:11,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 11:43:11,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2022-07-21 11:43:11,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:43:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2022-07-21 11:43:12,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:12,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413755] [2022-07-21 11:43:12,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413755] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:43:12,739 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:43:12,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-21 11:43:12,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468801256] [2022-07-21 11:43:12,739 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:43:12,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 11:43:12,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:12,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 11:43:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 11:43:12,741 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) [2022-07-21 11:43:14,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:14,157 INFO L93 Difference]: Finished difference Result 5349 states and 7970 transitions. [2022-07-21 11:43:14,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:43:14,159 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 [2022-07-21 11:43:14,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:14,177 INFO L225 Difference]: With dead ends: 5349 [2022-07-21 11:43:14,177 INFO L226 Difference]: Without dead ends: 2691 [2022-07-21 11:43:14,193 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 [2022-07-21 11:43:14,194 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 8 mSDsluCounter, 23554 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:14,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27490 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 11:43:14,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-07-21 11:43:14,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2691. [2022-07-21 11:43:14,264 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) [2022-07-21 11:43:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3959 transitions. [2022-07-21 11:43:14,278 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3959 transitions. Word has length 290 [2022-07-21 11:43:14,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:14,280 INFO L495 AbstractCegarLoop]: Abstraction has 2691 states and 3959 transitions. [2022-07-21 11:43:14,280 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) [2022-07-21 11:43:14,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3959 transitions. [2022-07-21 11:43:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-21 11:43:14,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:14,284 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] [2022-07-21 11:43:14,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:14,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:14,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1856355437, now seen corresponding path program 2 times [2022-07-21 11:43:14,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:14,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027433292] [2022-07-21 11:43:14,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:43:14,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:14,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:14,510 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) [2022-07-21 11:43:14,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:43:16,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:43:16,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:43:16,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:43:16,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-07-21 11:43:16,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:16,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:16,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027433292] [2022-07-21 11:43:16,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027433292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:16,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:16,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:43:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821044888] [2022-07-21 11:43:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:16,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:43:16,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:43:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:43:16,688 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) [2022-07-21 11:43:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:17,193 INFO L93 Difference]: Finished difference Result 7983 states and 12034 transitions. [2022-07-21 11:43:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:43:17,195 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 [2022-07-21 11:43:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:17,236 INFO L225 Difference]: With dead ends: 7983 [2022-07-21 11:43:17,237 INFO L226 Difference]: Without dead ends: 5334 [2022-07-21 11:43:17,258 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 [2022-07-21 11:43:17,260 INFO L413 NwaCegarLoop]: 4840 mSDtfsCounter, 3997 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:17,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3997 Valid, 8798 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 11:43:17,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-07-21 11:43:17,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5332. [2022-07-21 11:43:17,444 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) [2022-07-21 11:43:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 7987 transitions. [2022-07-21 11:43:17,473 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 7987 transitions. Word has length 295 [2022-07-21 11:43:17,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:17,477 INFO L495 AbstractCegarLoop]: Abstraction has 5332 states and 7987 transitions. [2022-07-21 11:43:17,477 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) [2022-07-21 11:43:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 7987 transitions. [2022-07-21 11:43:17,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-21 11:43:17,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:17,482 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] [2022-07-21 11:43:17,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:17,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:17,703 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:17,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1832893579, now seen corresponding path program 1 times [2022-07-21 11:43:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:17,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273171183] [2022-07-21 11:43:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:17,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:17,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:17,709 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) [2022-07-21 11:43:17,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:43:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:20,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 2804 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 11:43:20,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:21,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2022-07-21 11:43:21,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:43:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-07-21 11:43:22,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:22,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273171183] [2022-07-21 11:43:22,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273171183] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:43:22,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:43:22,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-21 11:43:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132201959] [2022-07-21 11:43:22,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:43:22,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:43:22,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:22,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:43:22,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:43:22,300 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) [2022-07-21 11:43:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:24,129 INFO L93 Difference]: Finished difference Result 10650 states and 16270 transitions. [2022-07-21 11:43:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 11:43:24,130 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 [2022-07-21 11:43:24,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:24,160 INFO L225 Difference]: With dead ends: 10650 [2022-07-21 11:43:24,161 INFO L226 Difference]: Without dead ends: 5334 [2022-07-21 11:43:24,192 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 [2022-07-21 11:43:24,193 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, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:24,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35351 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 11:43:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-07-21 11:43:24,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5334. [2022-07-21 11:43:24,337 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) [2022-07-21 11:43:24,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 7989 transitions. [2022-07-21 11:43:24,368 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 7989 transitions. Word has length 296 [2022-07-21 11:43:24,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:24,368 INFO L495 AbstractCegarLoop]: Abstraction has 5334 states and 7989 transitions. [2022-07-21 11:43:24,368 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) [2022-07-21 11:43:24,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 7989 transitions. [2022-07-21 11:43:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-21 11:43:24,373 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:24,373 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] [2022-07-21 11:43:24,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:24,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:24,587 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:24,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:24,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1595086069, now seen corresponding path program 2 times [2022-07-21 11:43:24,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:24,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733056871] [2022-07-21 11:43:24,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:43:24,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:24,591 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) [2022-07-21 11:43:24,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:43:26,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:43:26,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:43:26,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:43:26,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1362 trivial. 0 not checked. [2022-07-21 11:43:26,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:26,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:26,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733056871] [2022-07-21 11:43:26,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733056871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:26,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:26,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:43:26,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120717680] [2022-07-21 11:43:26,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:26,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:43:26,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:26,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:43:26,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:43:26,694 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) [2022-07-21 11:43:27,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:27,228 INFO L93 Difference]: Finished difference Result 15914 states and 24928 transitions. [2022-07-21 11:43:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:43:27,231 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 [2022-07-21 11:43:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:27,302 INFO L225 Difference]: With dead ends: 15914 [2022-07-21 11:43:27,303 INFO L226 Difference]: Without dead ends: 10622 [2022-07-21 11:43:27,339 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 [2022-07-21 11:43:27,340 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 [2022-07-21 11:43:27,340 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] [2022-07-21 11:43:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-07-21 11:43:27,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 10620. [2022-07-21 11:43:27,702 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) [2022-07-21 11:43:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 16451 transitions. [2022-07-21 11:43:27,762 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 16451 transitions. Word has length 301 [2022-07-21 11:43:27,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:27,763 INFO L495 AbstractCegarLoop]: Abstraction has 10620 states and 16451 transitions. [2022-07-21 11:43:27,763 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) [2022-07-21 11:43:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 16451 transitions. [2022-07-21 11:43:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-21 11:43:27,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:27,767 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] [2022-07-21 11:43:27,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:27,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:27,988 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2035339211, now seen corresponding path program 1 times [2022-07-21 11:43:27,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:27,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834838565] [2022-07-21 11:43:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:27,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:27,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:27,991 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) [2022-07-21 11:43:27,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:43:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:31,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 2861 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 11:43:31,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-07-21 11:43:31,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:43:32,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2022-07-21 11:43:32,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:32,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834838565] [2022-07-21 11:43:32,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834838565] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:43:32,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:43:32,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-21 11:43:32,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459035917] [2022-07-21 11:43:32,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:43:32,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 11:43:32,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:32,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 11:43:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:43:32,951 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) [2022-07-21 11:43:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:35,084 INFO L93 Difference]: Finished difference Result 21244 states and 34060 transitions. [2022-07-21 11:43:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 11:43:35,085 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 [2022-07-21 11:43:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:35,149 INFO L225 Difference]: With dead ends: 21244 [2022-07-21 11:43:35,149 INFO L226 Difference]: Without dead ends: 10624 [2022-07-21 11:43:35,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-07-21 11:43:35,254 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 12 mSDsluCounter, 35334 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:35,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39270 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 11:43:35,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2022-07-21 11:43:35,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 10624. [2022-07-21 11:43:35,770 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) [2022-07-21 11:43:35,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10624 states to 10624 states and 16455 transitions. [2022-07-21 11:43:35,834 INFO L78 Accepts]: Start accepts. Automaton has 10624 states and 16455 transitions. Word has length 302 [2022-07-21 11:43:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:35,834 INFO L495 AbstractCegarLoop]: Abstraction has 10624 states and 16455 transitions. [2022-07-21 11:43:35,835 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) [2022-07-21 11:43:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 10624 states and 16455 transitions. [2022-07-21 11:43:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-07-21 11:43:35,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:35,839 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] [2022-07-21 11:43:35,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:36,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:36,059 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:36,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1499585355, now seen corresponding path program 2 times [2022-07-21 11:43:36,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:36,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338509994] [2022-07-21 11:43:36,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:43:36,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:36,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:36,064 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) [2022-07-21 11:43:36,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:43:38,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:43:38,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:43:38,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1965 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:43:38,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1472 trivial. 0 not checked. [2022-07-21 11:43:38,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:38,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:38,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338509994] [2022-07-21 11:43:38,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338509994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:38,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:38,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:43:38,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903326893] [2022-07-21 11:43:38,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:38,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:43:38,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:38,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:43:38,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:43:38,364 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) [2022-07-21 11:43:39,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:39,209 INFO L93 Difference]: Finished difference Result 31783 states and 53476 transitions. [2022-07-21 11:43:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:43:39,210 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 [2022-07-21 11:43:39,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:39,334 INFO L225 Difference]: With dead ends: 31783 [2022-07-21 11:43:39,335 INFO L226 Difference]: Without dead ends: 21201 [2022-07-21 11:43:39,489 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 [2022-07-21 11:43:39,490 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 [2022-07-21 11:43:39,491 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] [2022-07-21 11:43:39,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21201 states. [2022-07-21 11:43:40,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21201 to 21199. [2022-07-21 11:43:40,236 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) [2022-07-21 11:43:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21199 states to 21199 states and 34955 transitions. [2022-07-21 11:43:40,400 INFO L78 Accepts]: Start accepts. Automaton has 21199 states and 34955 transitions. Word has length 307 [2022-07-21 11:43:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:40,401 INFO L495 AbstractCegarLoop]: Abstraction has 21199 states and 34955 transitions. [2022-07-21 11:43:40,401 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) [2022-07-21 11:43:40,401 INFO L276 IsEmpty]: Start isEmpty. Operand 21199 states and 34955 transitions. [2022-07-21 11:43:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-07-21 11:43:40,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:40,404 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] [2022-07-21 11:43:40,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:40,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:40,623 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash -301667027, now seen corresponding path program 1 times [2022-07-21 11:43:40,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068381356] [2022-07-21 11:43:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:40,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:40,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:40,628 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) [2022-07-21 11:43:40,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:43:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:45,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:43:45,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 225 proven. 10 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-21 11:43:45,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:43:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 93 proven. 41 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-21 11:43:47,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:47,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068381356] [2022-07-21 11:43:47,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068381356] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:43:47,380 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:43:47,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-21 11:43:47,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707476983] [2022-07-21 11:43:47,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:43:47,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 11:43:47,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:47,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 11:43:47,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-21 11:43:47,381 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) [2022-07-21 11:43:49,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:49,890 INFO L93 Difference]: Finished difference Result 42462 states and 74388 transitions. [2022-07-21 11:43:49,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 11:43:49,891 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 [2022-07-21 11:43:49,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:50,011 INFO L225 Difference]: With dead ends: 42462 [2022-07-21 11:43:50,011 INFO L226 Difference]: Without dead ends: 21271 [2022-07-21 11:43:50,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 599 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-07-21 11:43:50,315 INFO L413 NwaCegarLoop]: 3935 mSDtfsCounter, 24 mSDsluCounter, 31429 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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 [2022-07-21 11:43:50,316 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] [2022-07-21 11:43:50,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21271 states. [2022-07-21 11:43:51,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21271 to 21271. [2022-07-21 11:43:51,130 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) [2022-07-21 11:43:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21271 states to 21271 states and 35027 transitions. [2022-07-21 11:43:51,323 INFO L78 Accepts]: Start accepts. Automaton has 21271 states and 35027 transitions. Word has length 308 [2022-07-21 11:43:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:51,324 INFO L495 AbstractCegarLoop]: Abstraction has 21271 states and 35027 transitions. [2022-07-21 11:43:51,324 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) [2022-07-21 11:43:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 21271 states and 35027 transitions. [2022-07-21 11:43:51,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-07-21 11:43:51,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:51,328 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] [2022-07-21 11:43:51,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:51,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:51,543 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:51,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:51,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1598680819, now seen corresponding path program 2 times [2022-07-21 11:43:51,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:51,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722629912] [2022-07-21 11:43:51,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:43:51,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:51,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:51,548 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) [2022-07-21 11:43:51,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 11:43:53,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:43:53,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:43:54,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:43:54,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1497 trivial. 0 not checked. [2022-07-21 11:43:54,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:54,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:43:54,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722629912] [2022-07-21 11:43:54,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722629912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:54,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:54,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:43:54,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094151661] [2022-07-21 11:43:54,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:54,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:43:54,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:43:54,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:43:54,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:43:54,165 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) [2022-07-21 11:43:55,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:55,713 INFO L93 Difference]: Finished difference Result 63717 states and 121613 transitions. [2022-07-21 11:43:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:43:55,714 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 [2022-07-21 11:43:55,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:56,135 INFO L225 Difference]: With dead ends: 63717 [2022-07-21 11:43:56,135 INFO L226 Difference]: Without dead ends: 42488 [2022-07-21 11:43:56,386 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 [2022-07-21 11:43:56,386 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 4003 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-21 11:43:56,387 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] [2022-07-21 11:43:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42488 states. [2022-07-21 11:43:58,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42488 to 42486. [2022-07-21 11:43:58,285 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) [2022-07-21 11:43:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42486 states to 42486 states and 78284 transitions. [2022-07-21 11:43:58,969 INFO L78 Accepts]: Start accepts. Automaton has 42486 states and 78284 transitions. Word has length 309 [2022-07-21 11:43:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:58,970 INFO L495 AbstractCegarLoop]: Abstraction has 42486 states and 78284 transitions. [2022-07-21 11:43:58,970 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) [2022-07-21 11:43:58,970 INFO L276 IsEmpty]: Start isEmpty. Operand 42486 states and 78284 transitions. [2022-07-21 11:43:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-21 11:43:58,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:58,973 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] [2022-07-21 11:43:59,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:59,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:43:59,199 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:59,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash -315903827, now seen corresponding path program 1 times [2022-07-21 11:43:59,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:43:59,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65077952] [2022-07-21 11:43:59,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:59,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:43:59,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:43:59,204 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) [2022-07-21 11:43:59,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 11:44:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:03,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 11:44:03,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 245 proven. 15 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-21 11:44:03,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:44:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 108 proven. 51 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-21 11:44:06,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:44:06,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65077952] [2022-07-21 11:44:06,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65077952] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:44:06,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:44:06,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-21 11:44:06,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387671343] [2022-07-21 11:44:06,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:44:06,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 11:44:06,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:44:06,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 11:44:06,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-21 11:44:06,059 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) [2022-07-21 11:44:10,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:10,198 INFO L93 Difference]: Finished difference Result 85030 states and 173569 transitions. [2022-07-21 11:44:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 11:44:10,199 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 [2022-07-21 11:44:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:10,449 INFO L225 Difference]: With dead ends: 85030 [2022-07-21 11:44:10,449 INFO L226 Difference]: Without dead ends: 42502 [2022-07-21 11:44:11,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-07-21 11:44:11,058 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, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:11,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 39284 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 11:44:11,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42502 states. [2022-07-21 11:44:12,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42502 to 42502. [2022-07-21 11:44:12,593 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) [2022-07-21 11:44:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42502 states to 42502 states and 78300 transitions. [2022-07-21 11:44:13,093 INFO L78 Accepts]: Start accepts. Automaton has 42502 states and 78300 transitions. Word has length 313 [2022-07-21 11:44:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:13,094 INFO L495 AbstractCegarLoop]: Abstraction has 42502 states and 78300 transitions. [2022-07-21 11:44:13,095 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) [2022-07-21 11:44:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 42502 states and 78300 transitions. [2022-07-21 11:44:13,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-07-21 11:44:13,097 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:13,097 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] [2022-07-21 11:44:13,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 11:44:13,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:44:13,319 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2029385933, now seen corresponding path program 2 times [2022-07-21 11:44:13,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:44:13,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463417889] [2022-07-21 11:44:13,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:44:13,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:44:13,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:44:13,323 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) [2022-07-21 11:44:13,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 11:44:15,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:44:15,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:44:15,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:44:15,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2022-07-21 11:44:17,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:44:17,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:44:17,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463417889] [2022-07-21 11:44:17,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463417889] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:17,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:44:17,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:44:17,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176933529] [2022-07-21 11:44:17,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:17,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:44:17,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:44:17,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:44:17,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:44:17,960 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) [2022-07-21 11:44:22,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:22,327 INFO L93 Difference]: Finished difference Result 127518 states and 300954 transitions. [2022-07-21 11:44:22,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:44:22,328 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 [2022-07-21 11:44:22,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:23,334 INFO L225 Difference]: With dead ends: 127518 [2022-07-21 11:44:23,334 INFO L226 Difference]: Without dead ends: 85058 [2022-07-21 11:44:24,426 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 [2022-07-21 11:44:24,427 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 [2022-07-21 11:44:24,427 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] [2022-07-21 11:44:24,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85058 states. [2022-07-21 11:44:28,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85058 to 84896. [2022-07-21 11:44:28,437 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) [2022-07-21 11:44:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84896 states to 84896 states and 187450 transitions. [2022-07-21 11:44:30,132 INFO L78 Accepts]: Start accepts. Automaton has 84896 states and 187450 transitions. Word has length 314 [2022-07-21 11:44:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:30,133 INFO L495 AbstractCegarLoop]: Abstraction has 84896 states and 187450 transitions. [2022-07-21 11:44:30,133 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) [2022-07-21 11:44:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 84896 states and 187450 transitions. [2022-07-21 11:44:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-07-21 11:44:30,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:30,136 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] [2022-07-21 11:44:30,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-21 11:44:30,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:44:30,336 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:30,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1294263860, now seen corresponding path program 1 times [2022-07-21 11:44:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:44:30,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408890888] [2022-07-21 11:44:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:30,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:44:30,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:44:30,339 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) [2022-07-21 11:44:30,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 11:44:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:34,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 11:44:34,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 265 proven. 21 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-21 11:44:35,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:44:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 123 proven. 62 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-21 11:44:37,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:44:37,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408890888] [2022-07-21 11:44:37,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408890888] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:44:37,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:44:37,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-07-21 11:44:37,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565681591] [2022-07-21 11:44:37,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:44:37,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-21 11:44:37,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:44:37,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-21 11:44:37,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-07-21 11:44:37,853 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) [2022-07-21 11:44:46,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:46,368 INFO L93 Difference]: Finished difference Result 169946 states and 439901 transitions. [2022-07-21 11:44:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 11:44:46,370 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 [2022-07-21 11:44:46,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:47,480 INFO L225 Difference]: With dead ends: 169946 [2022-07-21 11:44:47,481 INFO L226 Difference]: Without dead ends: 84928 [2022-07-21 11:44:50,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-07-21 11:44:50,214 INFO L413 NwaCegarLoop]: 3935 mSDtfsCounter, 41 mSDsluCounter, 43223 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:50,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 47158 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 11:44:50,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84928 states.