./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 6c24879c 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-?-6c24879 [2022-07-12 13:08:43,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:08:43,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:08:43,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:08:43,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:08:43,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:08:43,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:08:43,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:08:43,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:08:43,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:08:43,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:08:43,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:08:43,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:08:43,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:08:43,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:08:43,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:08:43,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:08:43,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:08:43,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:08:43,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:08:43,194 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:08:43,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:08:43,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:08:43,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:08:43,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:08:43,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:08:43,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:08:43,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:08:43,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:08:43,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:08:43,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:08:43,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:08:43,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:08:43,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:08:43,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:08:43,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:08:43,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:08:43,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:08:43,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:08:43,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:08:43,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:08:43,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:08:43,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:08:43,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:08:43,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:08:43,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:08:43,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:08:43,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:08:43,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:08:43,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:08:43,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:08:43,251 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:08:43,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:08:43,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:08:43,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:08:43,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:08:43,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:08:43,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:08:43,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:08:43,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:08:43,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:08:43,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:08:43,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:08:43,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:08:43,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:08:43,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:08:43,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:08:43,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:08:43,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:08:43,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:08:43,255 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:08:43,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:08:43,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:08:43,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2022-07-12 13:08:43,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:08:43,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:08:43,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:08:43,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:08:43,465 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:08:43,466 INFO L432 ainManager$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 [2022-07-12 13:08:43,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8f32e16e/6a8dd375fb8441c5aa64997dd98316a0/FLAGaab893747 [2022-07-12 13:08:44,138 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:08:44,139 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 [2022-07-12 13:08:44,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8f32e16e/6a8dd375fb8441c5aa64997dd98316a0/FLAGaab893747 [2022-07-12 13:08:44,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8f32e16e/6a8dd375fb8441c5aa64997dd98316a0 [2022-07-12 13:08:44,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:08:44,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:08:44,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:08:44,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:08:44,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:08:44,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:08:44" (1/1) ... [2022-07-12 13:08:44,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4fa63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:44, skipping insertion in model container [2022-07-12 13:08:44,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:08:44" (1/1) ... [2022-07-12 13:08:44,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:08:44,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:08:46,262 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] [2022-07-12 13:08:46,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:08:46,330 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:08:46,506 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) [2022-07-12 13:08:46,513 INFO L158 Benchmark]: Toolchain (without parser) took 1974.88ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 64.5MB in the beginning and 69.2MB in the end (delta: -4.8MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-07-12 13:08:46,514 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 81.8MB. Free memory is still 38.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 13:08:46,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1971.62ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 64.5MB in the beginning and 69.2MB in the end (delta: -4.8MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-07-12 13:08:46,517 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 81.8MB. Free memory is still 38.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1971.62ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 64.5MB in the beginning and 69.2MB in the end (delta: -4.8MB). Peak memory consumption was 53.9MB. 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-?-6c24879 [2022-07-12 13:08:47,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:08:47,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:08:48,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:08:48,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:08:48,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:08:48,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:08:48,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:08:48,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:08:48,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:08:48,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:08:48,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:08:48,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:08:48,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:08:48,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:08:48,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:08:48,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:08:48,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:08:48,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:08:48,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:08:48,035 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:08:48,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:08:48,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:08:48,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:08:48,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:08:48,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:08:48,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:08:48,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:08:48,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:08:48,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:08:48,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:08:48,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:08:48,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:08:48,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:08:48,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:08:48,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:08:48,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:08:48,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:08:48,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:08:48,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:08:48,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:08:48,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:08:48,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 13:08:48,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:08:48,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:08:48,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:08:48,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:08:48,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:08:48,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:08:48,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:08:48,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:08:48,092 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:08:48,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:08:48,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:08:48,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:08:48,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:08:48,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:08:48,101 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 13:08:48,101 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 13:08:48,102 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 13:08:48,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:08:48,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:08:48,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:08:48,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:08:48,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:08:48,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:08:48,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:08:48,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:08:48,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:08:48,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:08:48,104 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 13:08:48,104 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 13:08:48,104 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:08:48,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:08:48,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:08:48,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 13:08:48,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2022-07-12 13:08:48,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:08:48,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:08:48,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:08:48,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:08:48,363 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:08:48,364 INFO L432 ainManager$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 [2022-07-12 13:08:48,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4c49c5ab/90186104b6d345b69f923e8fe802a0ff/FLAG2c3d6c5da [2022-07-12 13:08:49,093 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:08:49,094 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 [2022-07-12 13:08:49,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4c49c5ab/90186104b6d345b69f923e8fe802a0ff/FLAG2c3d6c5da [2022-07-12 13:08:49,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4c49c5ab/90186104b6d345b69f923e8fe802a0ff [2022-07-12 13:08:49,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:08:49,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:08:49,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:08:49,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:08:49,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:08:49,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:08:49" (1/1) ... [2022-07-12 13:08:49,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306abbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:49, skipping insertion in model container [2022-07-12 13:08:49,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:08:49" (1/1) ... [2022-07-12 13:08:49,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:08:49,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:08:51,408 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] [2022-07-12 13:08:51,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:08:51,469 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 13:08:51,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:08:51,796 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] [2022-07-12 13:08:51,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:08:51,820 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:08:52,212 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] [2022-07-12 13:08:52,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:08:52,293 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:08:52,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52 WrapperNode [2022-07-12 13:08:52,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:08:52,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:08:52,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:08:52,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:08:52,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,571 INFO L137 Inliner]: procedures = 366, calls = 3277, calls flagged for inlining = 158, calls inlined = 158, statements flattened = 7004 [2022-07-12 13:08:52,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:08:52,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:08:52,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:08:52,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:08:52,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:08:52,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:08:52,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:08:52,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:08:52,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (1/1) ... [2022-07-12 13:08:52,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:08:52,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:08:52,904 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) [2022-07-12 13:08:52,925 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 [2022-07-12 13:08:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure smic_size [2022-07-12 13:08:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_size [2022-07-12 13:08:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 13:08:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 13:08:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UCHAR [2022-07-12 13:08:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UCHAR [2022-07-12 13:08:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure write_data [2022-07-12 13:08:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure write_data [2022-07-12 13:08:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2022-07-12 13:08:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2022-07-12 13:08:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 13:08:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_8 [2022-07-12 13:08:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_8 [2022-07-12 13:08:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 13:08:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-12 13:08:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-12 13:08:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 13:08:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:08:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2022-07-12 13:08:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2022-07-12 13:08:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:08:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-07-12 13:08:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-07-12 13:08:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure enable_si_irq [2022-07-12 13:08:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_si_irq [2022-07-12 13:08:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:08:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:08:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:08:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:08:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_msg_done [2022-07-12 13:08:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_msg_done [2022-07-12 13:08:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure start_enable_irq [2022-07-12 13:08:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure start_enable_irq [2022-07-12 13:08:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-12 13:08:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-12 13:08:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_30 [2022-07-12 13:08:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_30 [2022-07-12 13:08:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:08:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:08:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2022-07-12 13:08:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2022-07-12 13:08:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure smic_cleanup [2022-07-12 13:08:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_cleanup [2022-07-12 13:08:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2022-07-12 13:08:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2022-07-12 13:08:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2022-07-12 13:08:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2022-07-12 13:08:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2022-07-12 13:08:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2022-07-12 13:08:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2022-07-12 13:08:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2022-07-12 13:08:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure bt_size [2022-07-12 13:08:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_size [2022-07-12 13:08:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure bt_init_data [2022-07-12 13:08:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_init_data [2022-07-12 13:08:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_resume [2022-07-12 13:08:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_resume [2022-07-12 13:08:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure smic_detect [2022-07-12 13:08:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_detect [2022-07-12 13:08:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:08:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:08:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure request_events [2022-07-12 13:08:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure request_events [2022-07-12 13:08:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2022-07-12 13:08:52,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2022-07-12 13:08:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 13:08:52,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 13:08:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:08:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:08:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-07-12 13:08:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-07-12 13:08:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure check_hotmod_int_op [2022-07-12 13:08:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hotmod_int_op [2022-07-12 13:08:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure parse_str [2022-07-12 13:08:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_str [2022-07-12 13:08:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:08:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:08:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_detect [2022-07-12 13:08:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_detect [2022-07-12 13:08:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_size [2022-07-12 13:08:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_size [2022-07-12 13:08:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2022-07-12 13:08:52,960 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2022-07-12 13:08:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure error_recovery [2022-07-12 13:08:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure error_recovery [2022-07-12 13:08:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure disable_si_irq [2022-07-12 13:08:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_si_irq [2022-07-12 13:08:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery [2022-07-12 13:08:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery [2022-07-12 13:08:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2022-07-12 13:08:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2022-07-12 13:08:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure start_smic_transaction [2022-07-12 13:08:52,963 INFO L138 BoogieDeclarations]: Found implementation of procedure start_smic_transaction [2022-07-12 13:08:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-07-12 13:08:52,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-07-12 13:08:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:08:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 13:08:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 13:08:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure state2txt [2022-07-12 13:08:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure state2txt [2022-07-12 13:08:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:08:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_unregister_smi [2022-07-12 13:08:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_unregister_smi [2022-07-12 13:08:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_38 [2022-07-12 13:08:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_38 [2022-07-12 13:08:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 13:08:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 13:08:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-12 13:08:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-12 13:08:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 13:08:52,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 13:08:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-07-12 13:08:52,968 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-07-12 13:08:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 13:08:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 13:08:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-12 13:08:52,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-12 13:08:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-12 13:08:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-12 13:08:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:08:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 13:08:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:08:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure getnstimeofday [2022-07-12 13:08:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getnstimeofday [2022-07-12 13:08:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 13:08:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 13:08:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure start_next_msg [2022-07-12 13:08:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure start_next_msg [2022-07-12 13:08:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure init_smic_data [2022-07-12 13:08:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure init_smic_data [2022-07-12 13:08:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 13:08:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-07-12 13:08:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 13:08:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 13:08:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_cleanup [2022-07-12 13:08:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_cleanup [2022-07-12 13:08:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 13:08:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 13:08:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery___0 [2022-07-12 13:08:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery___0 [2022-07-12 13:08:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_integer [2022-07-12 13:08:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_integer [2022-07-12 13:08:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure write_cmd [2022-07-12 13:08:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure write_cmd [2022-07-12 13:08:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 13:08:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 13:08:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure bt_get_result [2022-07-12 13:08:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_get_result [2022-07-12 13:08:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2022-07-12 13:08:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2022-07-12 13:08:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure smic_get_result [2022-07-12 13:08:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_get_result [2022-07-12 13:08:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2022-07-12 13:08:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2022-07-12 13:08:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure check_obf [2022-07-12 13:08:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure check_obf [2022-07-12 13:08:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_add_proc_entry [2022-07-12 13:08:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_add_proc_entry [2022-07-12 13:08:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-07-12 13:08:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-07-12 13:08:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-12 13:08:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-12 13:08:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-07-12 13:08:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-07-12 13:08:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 13:08:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 13:08:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-07-12 13:08:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-07-12 13:08:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-07-12 13:08:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-07-12 13:08:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure get_kcs_result [2022-07-12 13:08:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure get_kcs_result [2022-07-12 13:08:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_timer_and_thread [2022-07-12 13:08:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_timer_and_thread [2022-07-12 13:08:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-12 13:08:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-12 13:08:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure bt_detect [2022-07-12 13:08:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_detect [2022-07-12 13:08:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2022-07-12 13:08:52,981 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2022-07-12 13:08:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 13:08:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 13:08:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 13:08:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 13:08:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-07-12 13:08:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-07-12 13:08:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-07-12 13:08:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-07-12 13:08:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2022-07-12 13:08:52,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2022-07-12 13:08:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure try_smi_init [2022-07-12 13:08:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure try_smi_init [2022-07-12 13:08:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure add_smi [2022-07-12 13:08:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure add_smi [2022-07-12 13:08:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure force_result [2022-07-12 13:08:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure force_result [2022-07-12 13:08:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-12 13:08:52,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-12 13:08:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:08:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:08:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_recv_msg [2022-07-12 13:08:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_recv_msg [2022-07-12 13:08:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure status2txt [2022-07-12 13:08:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure status2txt [2022-07-12 13:08:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2022-07-12 13:08:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2022-07-12 13:08:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-12 13:08:52,984 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-12 13:08:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure bt_start_transaction [2022-07-12 13:08:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_start_transaction [2022-07-12 13:08:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure start_kcs_transaction [2022-07-12 13:08:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure start_kcs_transaction [2022-07-12 13:08:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 13:08:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 13:08:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 13:08:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:08:52,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:08:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:08:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:08:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2022-07-12 13:08:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2022-07-12 13:08:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2022-07-12 13:08:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2022-07-12 13:08:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure start_clear_flags [2022-07-12 13:08:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure start_clear_flags [2022-07-12 13:08:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-12 13:08:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-12 13:08:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:08:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure bt_cleanup [2022-07-12 13:08:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_cleanup [2022-07-12 13:08:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2022-07-12 13:08:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2022-07-12 13:08:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:08:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:08:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-07-12 13:08:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-07-12 13:08:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_LONG~TO~C_INT [2022-07-12 13:08:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_LONG~TO~C_INT [2022-07-12 13:08:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:08:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 13:08:52,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 13:08:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte [2022-07-12 13:08:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte [2022-07-12 13:08:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2022-07-12 13:08:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2022-07-12 13:08:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 13:08:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 13:08:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_si_set_not_busy [2022-07-12 13:08:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_si_set_not_busy [2022-07-12 13:08:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:08:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 13:08:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 13:08:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 13:08:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 13:08:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 13:08:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 13:08:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 13:08:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-12 13:08:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-12 13:08:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_flags [2022-07-12 13:08:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_flags [2022-07-12 13:08:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-07-12 13:08:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-07-12 13:08:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_8 [2022-07-12 13:08:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_8 [2022-07-12 13:08:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_control [2022-07-12 13:08:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_control [2022-07-12 13:08:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 13:08:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 13:08:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure return_hosed_msg [2022-07-12 13:08:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure return_hosed_msg [2022-07-12 13:08:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2022-07-12 13:08:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2022-07-12 13:08:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte___0 [2022-07-12 13:08:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte___0 [2022-07-12 13:08:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure init_kcs_data [2022-07-12 13:08:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure init_kcs_data [2022-07-12 13:08:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure si_irq_handler [2022-07-12 13:08:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure si_irq_handler [2022-07-12 13:08:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 13:08:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 13:08:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UCHAR~TO~VOID [2022-07-12 13:08:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UCHAR~TO~VOID [2022-07-12 13:08:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2022-07-12 13:08:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2022-07-12 13:08:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 13:08:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-07-12 13:08:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-07-12 13:08:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-12 13:08:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-12 13:08:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-12 13:08:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-12 13:08:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2022-07-12 13:08:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2022-07-12 13:08:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:08:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:08:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 13:08:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 13:08:53,887 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:08:53,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:09:00,722 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:09:56,431 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:09:56,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:09:56,466 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 13:09:56,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:09:56 BoogieIcfgContainer [2022-07-12 13:09:56,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:09:56,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:09:56,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:09:56,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:09:56,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:08:49" (1/3) ... [2022-07-12 13:09:56,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a63a659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:09:56, skipping insertion in model container [2022-07-12 13:09:56,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:08:52" (2/3) ... [2022-07-12 13:09:56,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a63a659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:09:56, skipping insertion in model container [2022-07-12 13:09:56,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:09:56" (3/3) ... [2022-07-12 13:09:56,476 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 [2022-07-12 13:09:56,487 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:09:56,488 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:09:56,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:09:56,571 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@2dd5eeae, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a6d079b [2022-07-12 13:09:56,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:09:56,582 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) [2022-07-12 13:09:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-12 13:09:56,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:09:56,609 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] [2022-07-12 13:09:56,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:09:56,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:09:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1858181459, now seen corresponding path program 1 times [2022-07-12 13:09:56,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:09:56,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130742664] [2022-07-12 13:09:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:09:56,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:09:56,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:09:56,632 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) [2022-07-12 13:09:56,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 13:09:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:09:59,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 13:09:59,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:09:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-12 13:09:59,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:09:59,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:09:59,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130742664] [2022-07-12 13:09:59,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130742664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:09:59,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:09:59,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 13:09:59,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422690072] [2022-07-12 13:09:59,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:09:59,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 13:09:59,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:09:59,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 13:09:59,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 13:09:59,360 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) [2022-07-12 13:09:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:09:59,509 INFO L93 Difference]: Finished difference Result 5414 states and 8185 transitions. [2022-07-12 13:09:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 13:09:59,511 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 [2022-07-12 13:09:59,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:09:59,540 INFO L225 Difference]: With dead ends: 5414 [2022-07-12 13:09:59,540 INFO L226 Difference]: Without dead ends: 2684 [2022-07-12 13:09:59,561 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 [2022-07-12 13:09:59,564 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 [2022-07-12 13:09:59,565 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] [2022-07-12 13:09:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-07-12 13:09:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2684. [2022-07-12 13:09:59,713 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) [2022-07-12 13:09:59,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3952 transitions. [2022-07-12 13:09:59,732 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3952 transitions. Word has length 285 [2022-07-12 13:09:59,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:09:59,733 INFO L495 AbstractCegarLoop]: Abstraction has 2684 states and 3952 transitions. [2022-07-12 13:09:59,733 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) [2022-07-12 13:09:59,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3952 transitions. [2022-07-12 13:09:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-12 13:09:59,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:09:59,742 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] [2022-07-12 13:09:59,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 13:09:59,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:09:59,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:09:59,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:09:59,954 INFO L85 PathProgramCache]: Analyzing trace with hash -699617965, now seen corresponding path program 1 times [2022-07-12 13:09:59,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:09:59,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600050372] [2022-07-12 13:09:59,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:09:59,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:09:59,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:09:59,961 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) [2022-07-12 13:09:59,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 13:10:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:10:03,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 13:10:03,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:03,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-07-12 13:10:03,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:10:03,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:03,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600050372] [2022-07-12 13:10:03,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600050372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:10:03,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:10:03,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:10:03,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638129911] [2022-07-12 13:10:03,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:10:03,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:10:03,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:03,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:10:03,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:10:03,422 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) [2022-07-12 13:10:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:04,324 INFO L93 Difference]: Finished difference Result 5342 states and 7962 transitions. [2022-07-12 13:10:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:10:04,325 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 [2022-07-12 13:10:04,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:04,342 INFO L225 Difference]: With dead ends: 5342 [2022-07-12 13:10:04,342 INFO L226 Difference]: Without dead ends: 2685 [2022-07-12 13:10:04,358 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 [2022-07-12 13:10:04,359 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, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:10:04,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 19636 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 13:10:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-07-12 13:10:04,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2685. [2022-07-12 13:10:04,450 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) [2022-07-12 13:10:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3953 transitions. [2022-07-12 13:10:04,468 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3953 transitions. Word has length 285 [2022-07-12 13:10:04,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:04,471 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 3953 transitions. [2022-07-12 13:10:04,471 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) [2022-07-12 13:10:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3953 transitions. [2022-07-12 13:10:04,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-12 13:10:04,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:04,474 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] [2022-07-12 13:10:04,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 13:10:04,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:04,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1670807165, now seen corresponding path program 1 times [2022-07-12 13:10:04,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:04,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875119991] [2022-07-12 13:10:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:10:04,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:04,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:04,696 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) [2022-07-12 13:10:04,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 13:10:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:10:07,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 13:10:07,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2022-07-12 13:10:08,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:10:09,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2022-07-12 13:10:09,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:09,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875119991] [2022-07-12 13:10:09,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875119991] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:10:09,059 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:10:09,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-12 13:10:09,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701801814] [2022-07-12 13:10:09,060 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:10:09,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 13:10:09,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:09,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 13:10:09,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:10:09,062 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) [2022-07-12 13:10:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:10,430 INFO L93 Difference]: Finished difference Result 5349 states and 7970 transitions. [2022-07-12 13:10:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:10:10,431 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 [2022-07-12 13:10:10,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:10,449 INFO L225 Difference]: With dead ends: 5349 [2022-07-12 13:10:10,449 INFO L226 Difference]: Without dead ends: 2691 [2022-07-12 13:10:10,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:10:10,464 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 8 mSDsluCounter, 23554 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:10:10,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27490 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 13:10:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-07-12 13:10:10,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2691. [2022-07-12 13:10:10,520 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) [2022-07-12 13:10:10,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3959 transitions. [2022-07-12 13:10:10,532 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3959 transitions. Word has length 290 [2022-07-12 13:10:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:10,534 INFO L495 AbstractCegarLoop]: Abstraction has 2691 states and 3959 transitions. [2022-07-12 13:10:10,534 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) [2022-07-12 13:10:10,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3959 transitions. [2022-07-12 13:10:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-12 13:10:10,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:10,536 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] [2022-07-12 13:10:10,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:10:10,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:10,756 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:10,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1856355437, now seen corresponding path program 2 times [2022-07-12 13:10:10,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:10,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154766974] [2022-07-12 13:10:10,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:10:10,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:10,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:10,761 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) [2022-07-12 13:10:10,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 13:10:12,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:10:12,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:10:12,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:10:12,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-07-12 13:10:13,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:10:13,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:13,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154766974] [2022-07-12 13:10:13,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154766974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:10:13,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:10:13,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:10:13,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515641138] [2022-07-12 13:10:13,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:10:13,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:10:13,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:13,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:10:13,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:10:13,021 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) [2022-07-12 13:10:13,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:13,449 INFO L93 Difference]: Finished difference Result 7983 states and 12034 transitions. [2022-07-12 13:10:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:10:13,451 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 [2022-07-12 13:10:13,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:13,514 INFO L225 Difference]: With dead ends: 7983 [2022-07-12 13:10:13,514 INFO L226 Difference]: Without dead ends: 5334 [2022-07-12 13:10:13,525 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 [2022-07-12 13:10:13,526 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:10:13,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3997 Valid, 8798 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 13:10:13,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-07-12 13:10:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5332. [2022-07-12 13:10:13,669 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) [2022-07-12 13:10:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 7987 transitions. [2022-07-12 13:10:13,692 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 7987 transitions. Word has length 295 [2022-07-12 13:10:13,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:13,695 INFO L495 AbstractCegarLoop]: Abstraction has 5332 states and 7987 transitions. [2022-07-12 13:10:13,696 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) [2022-07-12 13:10:13,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 7987 transitions. [2022-07-12 13:10:13,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-12 13:10:13,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:13,700 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] [2022-07-12 13:10:13,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:10:13,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:13,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:13,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1832893579, now seen corresponding path program 1 times [2022-07-12 13:10:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:13,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045620629] [2022-07-12 13:10:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:10:13,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:13,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:13,918 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) [2022-07-12 13:10:13,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 13:10:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:10:17,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 2804 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 13:10:17,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2022-07-12 13:10:17,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:10:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-07-12 13:10:19,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:19,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045620629] [2022-07-12 13:10:19,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045620629] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:10:19,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:10:19,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-12 13:10:19,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672790789] [2022-07-12 13:10:19,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:10:19,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 13:10:19,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:19,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 13:10:19,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:10:19,029 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) [2022-07-12 13:10:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:21,178 INFO L93 Difference]: Finished difference Result 10650 states and 16270 transitions. [2022-07-12 13:10:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:10:21,179 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 [2022-07-12 13:10:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:21,217 INFO L225 Difference]: With dead ends: 10650 [2022-07-12 13:10:21,217 INFO L226 Difference]: Without dead ends: 5334 [2022-07-12 13:10:21,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-07-12 13:10:21,250 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 9 mSDsluCounter, 31415 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:10:21,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35351 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 13:10:21,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-07-12 13:10:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5334. [2022-07-12 13:10:21,441 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) [2022-07-12 13:10:21,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 7989 transitions. [2022-07-12 13:10:21,501 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 7989 transitions. Word has length 296 [2022-07-12 13:10:21,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:21,502 INFO L495 AbstractCegarLoop]: Abstraction has 5334 states and 7989 transitions. [2022-07-12 13:10:21,502 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) [2022-07-12 13:10:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 7989 transitions. [2022-07-12 13:10:21,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-12 13:10:21,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:21,524 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] [2022-07-12 13:10:21,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:10:21,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:21,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:21,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:21,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1595086069, now seen corresponding path program 2 times [2022-07-12 13:10:21,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:21,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71085131] [2022-07-12 13:10:21,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:10:21,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:21,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:21,740 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) [2022-07-12 13:10:21,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 13:10:24,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:10:24,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:10:24,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:10:24,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1362 trivial. 0 not checked. [2022-07-12 13:10:24,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:10:24,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:24,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71085131] [2022-07-12 13:10:24,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71085131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:10:24,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:10:24,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:10:24,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584039051] [2022-07-12 13:10:24,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:10:24,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:10:24,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:24,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:10:24,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:10:24,557 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) [2022-07-12 13:10:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:25,183 INFO L93 Difference]: Finished difference Result 15914 states and 24928 transitions. [2022-07-12 13:10:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:10:25,185 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 [2022-07-12 13:10:25,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:25,265 INFO L225 Difference]: With dead ends: 15914 [2022-07-12 13:10:25,265 INFO L226 Difference]: Without dead ends: 10622 [2022-07-12 13:10:25,290 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 [2022-07-12 13:10:25,291 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:10:25,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4001 Valid, 8632 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 13:10:25,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-07-12 13:10:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 10620. [2022-07-12 13:10:25,630 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) [2022-07-12 13:10:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 16451 transitions. [2022-07-12 13:10:25,700 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 16451 transitions. Word has length 301 [2022-07-12 13:10:25,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:25,701 INFO L495 AbstractCegarLoop]: Abstraction has 10620 states and 16451 transitions. [2022-07-12 13:10:25,701 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) [2022-07-12 13:10:25,702 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 16451 transitions. [2022-07-12 13:10:25,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-12 13:10:25,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:25,706 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] [2022-07-12 13:10:25,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 13:10:25,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:25,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:25,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:25,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2035339211, now seen corresponding path program 1 times [2022-07-12 13:10:25,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:25,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178689534] [2022-07-12 13:10:25,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:10:25,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:25,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:25,947 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) [2022-07-12 13:10:25,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 13:10:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:10:29,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2861 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 13:10:29,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-07-12 13:10:29,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:10:31,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2022-07-12 13:10:31,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:31,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178689534] [2022-07-12 13:10:31,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178689534] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:10:31,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:10:31,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-12 13:10:31,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254260157] [2022-07-12 13:10:31,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:10:31,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 13:10:31,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:31,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 13:10:31,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:10:31,184 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) [2022-07-12 13:10:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:33,214 INFO L93 Difference]: Finished difference Result 21244 states and 34060 transitions. [2022-07-12 13:10:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 13:10:33,214 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 [2022-07-12 13:10:33,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:33,305 INFO L225 Difference]: With dead ends: 21244 [2022-07-12 13:10:33,305 INFO L226 Difference]: Without dead ends: 10624 [2022-07-12 13:10:33,418 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 [2022-07-12 13:10:33,419 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, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:10:33,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39270 Invalid, 316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 13:10:33,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2022-07-12 13:10:33,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 10624. [2022-07-12 13:10:33,646 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) [2022-07-12 13:10:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10624 states to 10624 states and 16455 transitions. [2022-07-12 13:10:33,732 INFO L78 Accepts]: Start accepts. Automaton has 10624 states and 16455 transitions. Word has length 302 [2022-07-12 13:10:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:33,734 INFO L495 AbstractCegarLoop]: Abstraction has 10624 states and 16455 transitions. [2022-07-12 13:10:33,734 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) [2022-07-12 13:10:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 10624 states and 16455 transitions. [2022-07-12 13:10:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-07-12 13:10:33,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:33,737 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] [2022-07-12 13:10:33,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 13:10:33,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:33,951 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:33,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:33,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1499585355, now seen corresponding path program 2 times [2022-07-12 13:10:33,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:33,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502443842] [2022-07-12 13:10:33,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:10:33,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:33,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:33,960 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) [2022-07-12 13:10:33,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 13:10:35,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:10:35,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:10:36,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1965 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:10:36,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1472 trivial. 0 not checked. [2022-07-12 13:10:36,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:10:36,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:36,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502443842] [2022-07-12 13:10:36,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502443842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:10:36,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:10:36,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:10:36,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560973479] [2022-07-12 13:10:36,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:10:36,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:10:36,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:36,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:10:36,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:10:36,153 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) [2022-07-12 13:10:36,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:36,920 INFO L93 Difference]: Finished difference Result 31783 states and 53476 transitions. [2022-07-12 13:10:36,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:10:36,922 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 [2022-07-12 13:10:36,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:37,031 INFO L225 Difference]: With dead ends: 31783 [2022-07-12 13:10:37,031 INFO L226 Difference]: Without dead ends: 21201 [2022-07-12 13:10:37,119 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 [2022-07-12 13:10:37,119 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 4002 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 13:10:37,119 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] [2022-07-12 13:10:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21201 states. [2022-07-12 13:10:37,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21201 to 21199. [2022-07-12 13:10:37,693 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) [2022-07-12 13:10:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21199 states to 21199 states and 34955 transitions. [2022-07-12 13:10:37,828 INFO L78 Accepts]: Start accepts. Automaton has 21199 states and 34955 transitions. Word has length 307 [2022-07-12 13:10:37,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:37,828 INFO L495 AbstractCegarLoop]: Abstraction has 21199 states and 34955 transitions. [2022-07-12 13:10:37,828 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) [2022-07-12 13:10:37,829 INFO L276 IsEmpty]: Start isEmpty. Operand 21199 states and 34955 transitions. [2022-07-12 13:10:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-07-12 13:10:37,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:37,830 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] [2022-07-12 13:10:37,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 13:10:38,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:38,033 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:38,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:38,034 INFO L85 PathProgramCache]: Analyzing trace with hash -301667027, now seen corresponding path program 1 times [2022-07-12 13:10:38,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:38,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665359579] [2022-07-12 13:10:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:10:38,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:38,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:38,037 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) [2022-07-12 13:10:38,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 13:10:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:10:42,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 13:10:42,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 225 proven. 10 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-12 13:10:42,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:10:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 93 proven. 41 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-12 13:10:44,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:44,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665359579] [2022-07-12 13:10:44,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665359579] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:10:44,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:10:44,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-12 13:10:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646915079] [2022-07-12 13:10:44,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:10:44,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 13:10:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 13:10:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:10:44,698 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) [2022-07-12 13:10:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:47,224 INFO L93 Difference]: Finished difference Result 42462 states and 74388 transitions. [2022-07-12 13:10:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 13:10:47,227 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 [2022-07-12 13:10:47,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:47,354 INFO L225 Difference]: With dead ends: 42462 [2022-07-12 13:10:47,354 INFO L226 Difference]: Without dead ends: 21271 [2022-07-12 13:10:47,622 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 [2022-07-12 13:10:47,622 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, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:10:47,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 35364 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 13:10:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21271 states. [2022-07-12 13:10:48,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21271 to 21271. [2022-07-12 13:10:48,159 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) [2022-07-12 13:10:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21271 states to 21271 states and 35027 transitions. [2022-07-12 13:10:48,472 INFO L78 Accepts]: Start accepts. Automaton has 21271 states and 35027 transitions. Word has length 308 [2022-07-12 13:10:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:48,473 INFO L495 AbstractCegarLoop]: Abstraction has 21271 states and 35027 transitions. [2022-07-12 13:10:48,473 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) [2022-07-12 13:10:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 21271 states and 35027 transitions. [2022-07-12 13:10:48,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-07-12 13:10:48,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:48,476 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] [2022-07-12 13:10:48,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 13:10:48,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:48,691 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:48,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:48,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1598680819, now seen corresponding path program 2 times [2022-07-12 13:10:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:48,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68628285] [2022-07-12 13:10:48,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:10:48,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:48,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:48,700 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) [2022-07-12 13:10:48,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 13:10:50,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:10:50,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:10:50,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:10:51,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:10:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1497 trivial. 0 not checked. [2022-07-12 13:10:51,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:10:51,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:10:51,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68628285] [2022-07-12 13:10:51,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68628285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:10:51,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:10:51,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:10:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39540627] [2022-07-12 13:10:51,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:10:51,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:10:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:10:51,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:10:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:10:51,107 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) [2022-07-12 13:10:52,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:10:52,671 INFO L93 Difference]: Finished difference Result 63717 states and 121613 transitions. [2022-07-12 13:10:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:10:52,671 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 [2022-07-12 13:10:52,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:10:53,036 INFO L225 Difference]: With dead ends: 63717 [2022-07-12 13:10:53,036 INFO L226 Difference]: Without dead ends: 42488 [2022-07-12 13:10:53,313 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 [2022-07-12 13:10:53,313 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 [2022-07-12 13:10:53,313 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] [2022-07-12 13:10:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42488 states. [2022-07-12 13:10:54,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42488 to 42486. [2022-07-12 13:10:54,877 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) [2022-07-12 13:10:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42486 states to 42486 states and 78284 transitions. [2022-07-12 13:10:55,856 INFO L78 Accepts]: Start accepts. Automaton has 42486 states and 78284 transitions. Word has length 309 [2022-07-12 13:10:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:10:55,857 INFO L495 AbstractCegarLoop]: Abstraction has 42486 states and 78284 transitions. [2022-07-12 13:10:55,857 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) [2022-07-12 13:10:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 42486 states and 78284 transitions. [2022-07-12 13:10:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-12 13:10:55,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:10:55,859 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] [2022-07-12 13:10:55,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-12 13:10:56,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:10:56,071 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:10:56,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:10:56,072 INFO L85 PathProgramCache]: Analyzing trace with hash -315903827, now seen corresponding path program 1 times [2022-07-12 13:10:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:10:56,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702653030] [2022-07-12 13:10:56,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:10:56,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:10:56,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:10:56,075 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) [2022-07-12 13:10:56,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 13:11:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:11:00,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 13:11:00,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:00,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 245 proven. 15 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-12 13:11:00,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:11:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 108 proven. 51 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-12 13:11:03,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:03,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702653030] [2022-07-12 13:11:03,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702653030] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:11:03,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:11:03,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-07-12 13:11:03,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238373072] [2022-07-12 13:11:03,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:11:03,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-12 13:11:03,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:03,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-12 13:11:03,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-07-12 13:11:03,119 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) [2022-07-12 13:11:07,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:11:07,115 INFO L93 Difference]: Finished difference Result 85030 states and 173569 transitions. [2022-07-12 13:11:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 13:11:07,117 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 [2022-07-12 13:11:07,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:11:07,546 INFO L225 Difference]: With dead ends: 85030 [2022-07-12 13:11:07,546 INFO L226 Difference]: Without dead ends: 42502 [2022-07-12 13:11:08,152 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 [2022-07-12 13:11:08,152 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 [2022-07-12 13:11:08,152 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] [2022-07-12 13:11:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42502 states. [2022-07-12 13:11:09,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42502 to 42502. [2022-07-12 13:11:09,458 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) [2022-07-12 13:11:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42502 states to 42502 states and 78300 transitions. [2022-07-12 13:11:10,179 INFO L78 Accepts]: Start accepts. Automaton has 42502 states and 78300 transitions. Word has length 313 [2022-07-12 13:11:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:11:10,180 INFO L495 AbstractCegarLoop]: Abstraction has 42502 states and 78300 transitions. [2022-07-12 13:11:10,180 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) [2022-07-12 13:11:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 42502 states and 78300 transitions. [2022-07-12 13:11:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-07-12 13:11:10,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:11:10,182 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] [2022-07-12 13:11:10,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 13:11:10,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:11:10,395 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:11:10,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:11:10,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2029385933, now seen corresponding path program 2 times [2022-07-12 13:11:10,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:11:10,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944190960] [2022-07-12 13:11:10,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 13:11:10,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:11:10,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:11:10,399 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) [2022-07-12 13:11:10,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 13:11:12,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 13:11:12,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 13:11:12,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 13:11:12,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2022-07-12 13:11:14,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:11:14,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:14,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944190960] [2022-07-12 13:11:14,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944190960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:11:14,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:11:14,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 13:11:14,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339144028] [2022-07-12 13:11:14,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:11:14,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 13:11:14,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:14,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 13:11:14,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 13:11:14,869 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) [2022-07-12 13:11:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:11:19,100 INFO L93 Difference]: Finished difference Result 127518 states and 300954 transitions. [2022-07-12 13:11:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:11:19,101 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 [2022-07-12 13:11:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:11:19,907 INFO L225 Difference]: With dead ends: 127518 [2022-07-12 13:11:19,907 INFO L226 Difference]: Without dead ends: 85058 [2022-07-12 13:11:20,829 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 [2022-07-12 13:11:20,830 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 [2022-07-12 13:11:20,830 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] [2022-07-12 13:11:20,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85058 states. [2022-07-12 13:11:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85058 to 84896. [2022-07-12 13:11:25,220 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) [2022-07-12 13:11:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84896 states to 84896 states and 187450 transitions. [2022-07-12 13:11:26,710 INFO L78 Accepts]: Start accepts. Automaton has 84896 states and 187450 transitions. Word has length 314 [2022-07-12 13:11:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:11:26,711 INFO L495 AbstractCegarLoop]: Abstraction has 84896 states and 187450 transitions. [2022-07-12 13:11:26,711 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) [2022-07-12 13:11:26,711 INFO L276 IsEmpty]: Start isEmpty. Operand 84896 states and 187450 transitions. [2022-07-12 13:11:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-07-12 13:11:26,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:11:26,713 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] [2022-07-12 13:11:26,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 13:11:26,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 13:11:26,914 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_spin_lock_checkErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:11:26,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:11:26,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1294263860, now seen corresponding path program 1 times [2022-07-12 13:11:26,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 13:11:26,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496351583] [2022-07-12 13:11:26,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:11:26,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 13:11:26,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 13:11:26,917 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) [2022-07-12 13:11:26,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 13:11:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:11:31,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 13:11:31,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:11:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 265 proven. 21 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2022-07-12 13:11:31,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:11:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1523 backedges. 123 proven. 62 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-07-12 13:11:34,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 13:11:34,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496351583] [2022-07-12 13:11:34,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496351583] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:11:34,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:11:34,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-07-12 13:11:34,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161224654] [2022-07-12 13:11:34,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:11:34,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-12 13:11:34,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 13:11:34,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-12 13:11:34,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-07-12 13:11:34,452 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) [2022-07-12 13:11:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:11:43,424 INFO L93 Difference]: Finished difference Result 169946 states and 439901 transitions. [2022-07-12 13:11:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 13:11:43,425 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 [2022-07-12 13:11:43,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:11:44,342 INFO L225 Difference]: With dead ends: 169946 [2022-07-12 13:11:44,342 INFO L226 Difference]: Without dead ends: 84928 [2022-07-12 13:11:47,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-07-12 13:11:47,227 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 [2022-07-12 13:11:47,228 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] [2022-07-12 13:11:47,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84928 states.