./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN --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 3fe54d83d46de95e8e0767545626d085bd64ef94fa067827f6d89c4bc8eb39d0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:30:45,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:45,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:45,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:45,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:45,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:45,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:45,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:45,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:45,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:45,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:45,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:45,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:45,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:45,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:45,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:45,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:45,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:45,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:45,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:45,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:45,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:45,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:45,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:45,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:45,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:45,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:45,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:45,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:45,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:45,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:45,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:45,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:45,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:45,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:45,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:45,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:45,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:45,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:45,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:45,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:45,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:30:45,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:45,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:45,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:45,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:45,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:30:45,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:30:45,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:45,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:45,254 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:45,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:45,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:30:45,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:45,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:30:45,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:30:45,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:30:45,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:45,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:45,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:30:45,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:45,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:45,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:30:45,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:45,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:45,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:30:45,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:30:45,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:30:45,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:30:45,261 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:30:45,261 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:30:45,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:30:45,262 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe54d83d46de95e8e0767545626d085bd64ef94fa067827f6d89c4bc8eb39d0 [2022-11-20 10:30:45,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:45,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:45,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:45,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:45,618 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:45,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-11-20 10:30:48,672 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:49,401 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:49,401 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-11-20 10:30:49,463 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data/d8770447f/57ff8302c34546e1b28a410c63408c2f/FLAG786c99994 [2022-11-20 10:30:49,485 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data/d8770447f/57ff8302c34546e1b28a410c63408c2f [2022-11-20 10:30:49,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:49,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:49,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:49,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:49,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:49,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:49" (1/1) ... [2022-11-20 10:30:49,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77da27ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:49, skipping insertion in model container [2022-11-20 10:30:49,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:49" (1/1) ... [2022-11-20 10:30:49,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:49,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:50,316 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) 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:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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) [2022-11-20 10:30:50,326 INFO L158 Benchmark]: Toolchain (without parser) took 833.15ms. Allocated memory is still 138.4MB. Free memory was 97.8MB in the beginning and 75.2MB in the end (delta: 22.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2022-11-20 10:30:50,326 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:30:50,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.86ms. Allocated memory is still 138.4MB. Free memory was 97.8MB in the beginning and 75.2MB in the end (delta: 22.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2022-11-20 10:30:50,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.86ms. Allocated memory is still 138.4MB. Free memory was 97.8MB in the beginning and 75.2MB in the end (delta: 22.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN --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 3fe54d83d46de95e8e0767545626d085bd64ef94fa067827f6d89c4bc8eb39d0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:30:52,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:52,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:52,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:52,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:52,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:52,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:52,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:52,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:52,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:52,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:52,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:52,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:52,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:52,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:52,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:52,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:52,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:52,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:52,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:52,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:52,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:52,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:52,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:52,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:52,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:52,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:52,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:52,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:52,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:52,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:52,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:52,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:52,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:52,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:52,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:52,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:52,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:52,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:52,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:52,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:52,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:30:52,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:52,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:52,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:52,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:52,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:30:52,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:30:52,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:52,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:52,914 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:52,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:52,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:52,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:30:52,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:30:52,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:30:52,917 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:30:52,917 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:30:52,918 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:30:52,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:52,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:52,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:30:52,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:52,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:52,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:30:52,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:52,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:52,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:30:52,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:30:52,921 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:30:52,921 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:30:52,921 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:30:52,921 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:30:52,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:30:52,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:30:52,922 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fe54d83d46de95e8e0767545626d085bd64ef94fa067827f6d89c4bc8eb39d0 [2022-11-20 10:30:53,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:53,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:53,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:53,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:53,353 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:53,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-11-20 10:30:56,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:57,561 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:57,562 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-11-20 10:30:57,637 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data/467a1b51c/af825d4d5252425a8c149720c5807941/FLAG0474f97e6 [2022-11-20 10:30:57,655 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/data/467a1b51c/af825d4d5252425a8c149720c5807941 [2022-11-20 10:30:57,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:57,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:57,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:57,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:57,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:57,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:57" (1/1) ... [2022-11-20 10:30:57,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d13c94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:57, skipping insertion in model container [2022-11-20 10:30:57,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:57" (1/1) ... [2022-11-20 10:30:57,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:57,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:00,957 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358326,358339] [2022-11-20 10:31:00,967 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358495,358508] [2022-11-20 10:31:00,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358662,358675] [2022-11-20 10:31:00,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358830,358843] [2022-11-20 10:31:01,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:01,116 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:31:01,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:01,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358326,358339] [2022-11-20 10:31:01,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358495,358508] [2022-11-20 10:31:01,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358662,358675] [2022-11-20 10:31:01,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358830,358843] [2022-11-20 10:31:01,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:01,740 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:31:02,207 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358326,358339] [2022-11-20 10:31:02,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358495,358508] [2022-11-20 10:31:02,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358662,358675] [2022-11-20 10:31:02,210 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i[358830,358843] [2022-11-20 10:31:02,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:02,534 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:31:02,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02 WrapperNode [2022-11-20 10:31:02,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:02,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:02,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:31:02,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:31:02,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:02,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:02,898 INFO L138 Inliner]: procedures = 514, calls = 2414, calls flagged for inlining = 253, calls inlined = 226, statements flattened = 5251 [2022-11-20 10:31:02,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:02,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:31:02,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:31:02,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:31:02,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:02,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:02,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:02,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:03,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:03,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:03,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:03,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:03,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:31:03,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:31:03,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:31:03,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:31:03,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (1/1) ... [2022-11-20 10:31:03,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:03,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:31:03,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:31:03,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:31:03,292 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-20 10:31:03,293 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-20 10:31:03,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:31:03,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:31:03,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-20 10:31:03,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-20 10:31:03,294 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_buf_addr [2022-11-20 10:31:03,294 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_buf_addr [2022-11-20 10:31:03,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 10:31:03,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 10:31:03,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:31:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:31:03,295 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_interrupt [2022-11-20 10:31:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_interrupt [2022-11-20 10:31:03,295 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 10:31:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 10:31:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_rx_refill [2022-11-20 10:31:03,297 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_rx_refill [2022-11-20 10:31:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 10:31:03,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 10:31:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-20 10:31:03,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-20 10:31:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:31:03,299 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:31:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:31:03,299 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:31:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_poll_controller [2022-11-20 10:31:03,299 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_poll_controller [2022-11-20 10:31:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-20 10:31:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-20 10:31:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_set_mac_addr [2022-11-20 10:31:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_set_mac_addr [2022-11-20 10:31:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-20 10:31:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-20 10:31:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_tx_timeout [2022-11-20 10:31:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_tx_timeout [2022-11-20 10:31:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 10:31:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 10:31:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 10:31:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 10:31:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:31:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:31:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-20 10:31:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-20 10:31:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:31:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 10:31:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 10:31:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:31:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:31:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:31:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 10:31:03,304 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 10:31:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_buf_addr_and_size [2022-11-20 10:31:03,304 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_buf_addr_and_size [2022-11-20 10:31:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:31:03,304 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:31:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_probe [2022-11-20 10:31:03,305 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_probe [2022-11-20 10:31:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 10:31:03,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 10:31:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 10:31:03,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 10:31:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_buf_len [2022-11-20 10:31:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_buf_len [2022-11-20 10:31:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:31:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:31:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:31:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:31:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 10:31:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 10:31:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 10:31:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 10:31:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_suspend [2022-11-20 10:31:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_suspend [2022-11-20 10:31:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-20 10:31:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-20 10:31:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_open [2022-11-20 10:31:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_open [2022-11-20 10:31:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_buf_len [2022-11-20 10:31:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_buf_len [2022-11-20 10:31:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-20 10:31:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-20 10:31:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 10:31:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 10:31:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:31:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 10:31:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 10:31:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 10:31:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 10:31:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-20 10:31:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-20 10:31:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:31:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_pmt [2022-11-20 10:31:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_pmt [2022-11-20 10:31:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 10:31:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 10:31:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 10:31:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 10:31:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:31:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_free_tx_skbufs [2022-11-20 10:31:03,314 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_free_tx_skbufs [2022-11-20 10:31:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:31:03,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:31:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:31:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:31:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:31:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:31:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-11-20 10:31:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-11-20 10:31:03,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 10:31:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 10:31:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-20 10:31:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-20 10:31:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 10:31:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 10:31:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-20 10:31:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-20 10:31:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:31:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:31:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 10:31:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 10:31:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-20 10:31:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-20 10:31:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-20 10:31:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-20 10:31:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 10:31:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 10:31:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:31:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:31:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:31:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:31:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:31:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:31:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_mac_disable [2022-11-20 10:31:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_mac_disable [2022-11-20 10:31:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:31:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:31:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:31:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:31:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:31:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:31:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:31:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure desc_init_tx_desc [2022-11-20 10:31:03,333 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_init_tx_desc [2022-11-20 10:31:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 10:31:03,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 10:31:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-20 10:31:03,333 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-20 10:31:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 10:31:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 10:31:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 10:31:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 10:31:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 10:31:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-20 10:31:03,334 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-20 10:31:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:31:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:31:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-20 10:31:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-20 10:31:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 10:31:03,335 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 10:31:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-20 10:31:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-20 10:31:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_mac_enable [2022-11-20 10:31:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_mac_enable [2022-11-20 10:31:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 10:31:03,336 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 10:31:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 10:31:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 10:31:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:31:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_stop [2022-11-20 10:31:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_stop [2022-11-20 10:31:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure desc_set_tx_owner [2022-11-20 10:31:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_set_tx_owner [2022-11-20 10:31:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 10:31:03,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 10:31:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2022-11-20 10:31:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2022-11-20 10:31:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:31:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:31:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:31:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:31:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:31:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:31:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 10:31:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 10:31:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 10:31:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 10:31:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:31:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:31:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-20 10:31:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-20 10:31:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 10:31:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 10:31:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 10:31:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 10:31:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_set_flow_ctrl [2022-11-20 10:31:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_set_flow_ctrl [2022-11-20 10:31:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 10:31:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 10:31:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_resume [2022-11-20 10:31:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_resume [2022-11-20 10:31:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 10:31:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 10:31:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 10:31:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 10:31:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:31:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:31:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2022-11-20 10:31:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2022-11-20 10:31:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_tx_fs [2022-11-20 10:31:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_tx_fs [2022-11-20 10:31:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:31:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:31:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:31:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:31:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_set_rx_mode [2022-11-20 10:31:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_set_rx_mode [2022-11-20 10:31:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-20 10:31:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-20 10:31:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:31:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:31:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:31:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:31:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:31:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:31:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:31:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:31:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 10:31:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 10:31:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 10:31:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 10:31:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-20 10:31:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-20 10:31:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2022-11-20 10:31:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2022-11-20 10:31:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 10:31:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 10:31:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 10:31:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 10:31:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-11-20 10:31:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-11-20 10:31:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-20 10:31:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-20 10:31:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 10:31:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 10:31:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-20 10:31:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-20 10:31:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 10:31:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 10:31:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure xgmac_remove [2022-11-20 10:31:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure xgmac_remove [2022-11-20 10:31:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_buf_addr [2022-11-20 10:31:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_buf_addr [2022-11-20 10:31:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-20 10:31:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-20 10:31:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-20 10:31:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-20 10:31:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 10:31:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 10:31:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure desc_get_tx_ls [2022-11-20 10:31:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_get_tx_ls [2022-11-20 10:31:04,403 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:31:04,413 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:31:08,009 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:37:52,667 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 10:37:52,759 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:37:52,776 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:37:52,776 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-20 10:37:52,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:52 BoogieIcfgContainer [2022-11-20 10:37:52,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:37:52,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:37:52,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:37:52,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:37:52,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:30:57" (1/3) ... [2022-11-20 10:37:52,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073ba46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:52, skipping insertion in model container [2022-11-20 10:37:52,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:02" (2/3) ... [2022-11-20 10:37:52,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6073ba46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:52, skipping insertion in model container [2022-11-20 10:37:52,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:52" (3/3) ... [2022-11-20 10:37:52,789 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-calxeda-xgmac.cil.i [2022-11-20 10:37:52,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:37:52,807 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 10:37:52,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:37:52,929 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@59020e88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:37:52,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 10:37:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 2052 states, 1406 states have (on average 1.2532005689900427) internal successors, (1762), 1427 states have internal predecessors, (1762), 528 states have call successors, (528), 116 states have call predecessors, (528), 115 states have return successors, (521), 516 states have call predecessors, (521), 521 states have call successors, (521) [2022-11-20 10:37:52,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 10:37:52,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:52,966 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:52,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:37:52,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash 357510212, now seen corresponding path program 1 times [2022-11-20 10:37:52,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:52,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773577700] [2022-11-20 10:37:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:52,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:52,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:52,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:53,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:37:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:57,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 3910 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:37:57,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-11-20 10:37:57,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:57,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773577700] [2022-11-20 10:37:57,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773577700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:57,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:57,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:37:57,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983410336] [2022-11-20 10:37:57,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:57,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:57,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:57,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:57,969 INFO L87 Difference]: Start difference. First operand has 2052 states, 1406 states have (on average 1.2532005689900427) internal successors, (1762), 1427 states have internal predecessors, (1762), 528 states have call successors, (528), 116 states have call predecessors, (528), 115 states have return successors, (521), 516 states have call predecessors, (521), 521 states have call successors, (521) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:38:00,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:38:01,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:01,411 INFO L93 Difference]: Finished difference Result 5926 states and 8223 transitions. [2022-11-20 10:38:01,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:01,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2022-11-20 10:38:01,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:01,466 INFO L225 Difference]: With dead ends: 5926 [2022-11-20 10:38:01,467 INFO L226 Difference]: Without dead ends: 3893 [2022-11-20 10:38:01,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:01,497 INFO L413 NwaCegarLoop]: 3212 mSDtfsCounter, 2601 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 5883 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:01,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 5883 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 10:38:01,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3893 states. [2022-11-20 10:38:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3893 to 3889. [2022-11-20 10:38:01,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3889 states, 2655 states have (on average 1.224482109227872) internal successors, (3251), 2695 states have internal predecessors, (3251), 1004 states have call successors, (1004), 228 states have call predecessors, (1004), 227 states have return successors, (1001), 991 states have call predecessors, (1001), 1001 states have call successors, (1001) [2022-11-20 10:38:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3889 states to 3889 states and 5256 transitions. [2022-11-20 10:38:01,870 INFO L78 Accepts]: Start accepts. Automaton has 3889 states and 5256 transitions. Word has length 167 [2022-11-20 10:38:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:01,874 INFO L495 AbstractCegarLoop]: Abstraction has 3889 states and 5256 transitions. [2022-11-20 10:38:01,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:38:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3889 states and 5256 transitions. [2022-11-20 10:38:01,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 10:38:01,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:01,896 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:01,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 10:38:02,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:02,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:38:02,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:02,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1915221371, now seen corresponding path program 1 times [2022-11-20 10:38:02,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:02,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276131368] [2022-11-20 10:38:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:02,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:02,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:02,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:38:02,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:38:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:06,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 3956 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:38:06,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-11-20 10:38:07,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:07,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:07,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276131368] [2022-11-20 10:38:07,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276131368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:07,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:07,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:38:07,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32705542] [2022-11-20 10:38:07,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:07,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:07,177 INFO L87 Difference]: Start difference. First operand 3889 states and 5256 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:38:09,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:38:11,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:11,400 INFO L93 Difference]: Finished difference Result 10803 states and 14608 transitions. [2022-11-20 10:38:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:11,401 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), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 182 [2022-11-20 10:38:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:11,446 INFO L225 Difference]: With dead ends: 10803 [2022-11-20 10:38:11,446 INFO L226 Difference]: Without dead ends: 6945 [2022-11-20 10:38:11,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:11,465 INFO L413 NwaCegarLoop]: 3115 mSDtfsCounter, 2104 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 5726 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:11,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 5726 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 10:38:11,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6945 states. [2022-11-20 10:38:11,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6945 to 6910. [2022-11-20 10:38:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6910 states, 4713 states have (on average 1.223000212179079) internal successors, (5764), 4787 states have internal predecessors, (5764), 1757 states have call successors, (1757), 440 states have call predecessors, (1757), 437 states have return successors, (1822), 1724 states have call predecessors, (1822), 1754 states have call successors, (1822) [2022-11-20 10:38:11,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6910 states to 6910 states and 9343 transitions. [2022-11-20 10:38:11,893 INFO L78 Accepts]: Start accepts. Automaton has 6910 states and 9343 transitions. Word has length 182 [2022-11-20 10:38:11,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:11,894 INFO L495 AbstractCegarLoop]: Abstraction has 6910 states and 9343 transitions. [2022-11-20 10:38:11,895 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), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 10:38:11,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6910 states and 9343 transitions. [2022-11-20 10:38:11,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 10:38:11,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:11,900 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:11,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:12,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:12,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:38:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:12,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1921440894, now seen corresponding path program 1 times [2022-11-20 10:38:12,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:12,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030848113] [2022-11-20 10:38:12,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:12,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:12,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:12,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:38:12,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:38:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:16,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 4021 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:38:16,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-11-20 10:38:17,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:17,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:17,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030848113] [2022-11-20 10:38:17,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030848113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:17,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:17,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:38:17,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504692987] [2022-11-20 10:38:17,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:17,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:17,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:17,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:17,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:17,378 INFO L87 Difference]: Start difference. First operand 6910 states and 9343 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 10:38:19,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:38:22,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:22,672 INFO L93 Difference]: Finished difference Result 19168 states and 25813 transitions. [2022-11-20 10:38:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:22,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 197 [2022-11-20 10:38:22,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:22,768 INFO L225 Difference]: With dead ends: 19168 [2022-11-20 10:38:22,768 INFO L226 Difference]: Without dead ends: 12289 [2022-11-20 10:38:22,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:22,808 INFO L413 NwaCegarLoop]: 4092 mSDtfsCounter, 2136 mSDsluCounter, 2599 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 6691 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:22,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 6691 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-20 10:38:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12289 states. [2022-11-20 10:38:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12289 to 12250. [2022-11-20 10:38:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12250 states, 8323 states have (on average 1.2127838519764509) internal successors, (10094), 8459 states have internal predecessors, (10094), 3095 states have call successors, (3095), 834 states have call predecessors, (3095), 829 states have return successors, (3162), 3032 states have call predecessors, (3162), 3092 states have call successors, (3162) [2022-11-20 10:38:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12250 states to 12250 states and 16351 transitions. [2022-11-20 10:38:23,736 INFO L78 Accepts]: Start accepts. Automaton has 12250 states and 16351 transitions. Word has length 197 [2022-11-20 10:38:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:23,737 INFO L495 AbstractCegarLoop]: Abstraction has 12250 states and 16351 transitions. [2022-11-20 10:38:23,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 10:38:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12250 states and 16351 transitions. [2022-11-20 10:38:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-20 10:38:23,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:23,743 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:23,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:23,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:23,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:38:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1242744284, now seen corresponding path program 1 times [2022-11-20 10:38:23,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:23,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612002597] [2022-11-20 10:38:23,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:23,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:23,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:23,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:38:24,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:38:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:28,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 4019 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:38:28,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-11-20 10:38:29,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:29,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:29,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612002597] [2022-11-20 10:38:29,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612002597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:29,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:29,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:38:29,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068615038] [2022-11-20 10:38:29,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:29,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:29,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:29,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:29,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:29,300 INFO L87 Difference]: Start difference. First operand 12250 states and 16351 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 10:38:31,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:38:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:33,418 INFO L93 Difference]: Finished difference Result 24535 states and 32728 transitions. [2022-11-20 10:38:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:33,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 219 [2022-11-20 10:38:33,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:33,540 INFO L225 Difference]: With dead ends: 24535 [2022-11-20 10:38:33,540 INFO L226 Difference]: Without dead ends: 18300 [2022-11-20 10:38:33,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:33,574 INFO L413 NwaCegarLoop]: 5282 mSDtfsCounter, 2600 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 7949 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:33,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 7949 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-20 10:38:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18300 states. [2022-11-20 10:38:34,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18300 to 18278. [2022-11-20 10:38:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18278 states, 12425 states have (on average 1.2129577464788732) internal successors, (15071), 12624 states have internal predecessors, (15071), 4607 states have call successors, (4607), 1250 states have call predecessors, (4607), 1243 states have return successors, (4709), 4517 states have call predecessors, (4709), 4604 states have call successors, (4709) [2022-11-20 10:38:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18278 states to 18278 states and 24387 transitions. [2022-11-20 10:38:34,953 INFO L78 Accepts]: Start accepts. Automaton has 18278 states and 24387 transitions. Word has length 219 [2022-11-20 10:38:34,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:34,954 INFO L495 AbstractCegarLoop]: Abstraction has 18278 states and 24387 transitions. [2022-11-20 10:38:34,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 10:38:34,955 INFO L276 IsEmpty]: Start isEmpty. Operand 18278 states and 24387 transitions. [2022-11-20 10:38:34,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-20 10:38:34,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:34,962 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:35,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:35,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:35,187 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:38:35,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:35,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1665446110, now seen corresponding path program 1 times [2022-11-20 10:38:35,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:35,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512065780] [2022-11-20 10:38:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:35,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:35,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:35,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:38:35,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:38:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:40,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 4019 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:38:40,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-11-20 10:38:46,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:46,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:46,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512065780] [2022-11-20 10:38:46,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512065780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:46,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:46,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:38:46,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965072096] [2022-11-20 10:38:46,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:46,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:38:46,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:46,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:38:46,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:38:46,751 INFO L87 Difference]: Start difference. First operand 18278 states and 24387 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 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) [2022-11-20 10:38:48,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:48,519 INFO L93 Difference]: Finished difference Result 18568 states and 24651 transitions. [2022-11-20 10:38:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:38:48,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 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 219 [2022-11-20 10:38:48,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:48,610 INFO L225 Difference]: With dead ends: 18568 [2022-11-20 10:38:48,610 INFO L226 Difference]: Without dead ends: 18566 [2022-11-20 10:38:48,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:38:48,623 INFO L413 NwaCegarLoop]: 2713 mSDtfsCounter, 2584 mSDsluCounter, 5465 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 8178 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:48,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 8178 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:38:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18566 states. [2022-11-20 10:38:49,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18566 to 18564. [2022-11-20 10:38:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18564 states, 12617 states have (on average 1.2113814694459857) internal successors, (15284), 12828 states have internal predecessors, (15284), 4631 states have call successors, (4631), 1320 states have call predecessors, (4631), 1313 states have return successors, (4733), 4541 states have call predecessors, (4733), 4628 states have call successors, (4733) [2022-11-20 10:38:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18564 states to 18564 states and 24648 transitions. [2022-11-20 10:38:49,799 INFO L78 Accepts]: Start accepts. Automaton has 18564 states and 24648 transitions. Word has length 219 [2022-11-20 10:38:49,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:49,800 INFO L495 AbstractCegarLoop]: Abstraction has 18564 states and 24648 transitions. [2022-11-20 10:38:49,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 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) [2022-11-20 10:38:49,801 INFO L276 IsEmpty]: Start isEmpty. Operand 18564 states and 24648 transitions. [2022-11-20 10:38:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-20 10:38:49,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:49,808 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:49,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:50,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:50,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:38:50,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:50,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1271905267, now seen corresponding path program 1 times [2022-11-20 10:38:50,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:50,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260132745] [2022-11-20 10:38:50,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:50,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:50,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:50,038 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:38:50,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:38:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:55,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 4026 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:38:55,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:39:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-11-20 10:39:02,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:39:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-11-20 10:39:05,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:39:05,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260132745] [2022-11-20 10:39:05,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260132745] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:39:05,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:39:05,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 10:39:05,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391477834] [2022-11-20 10:39:05,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:05,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:39:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:39:05,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:39:05,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:39:05,121 INFO L87 Difference]: Start difference. First operand 18564 states and 24648 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 10:39:07,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:39:07,213 INFO L93 Difference]: Finished difference Result 18570 states and 24653 transitions. [2022-11-20 10:39:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:39:07,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2022-11-20 10:39:07,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:39:07,295 INFO L225 Difference]: With dead ends: 18570 [2022-11-20 10:39:07,295 INFO L226 Difference]: Without dead ends: 18568 [2022-11-20 10:39:07,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:39:07,304 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 2626 mSDsluCounter, 5367 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2636 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:39:07,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2636 Valid, 8060 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:39:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18568 states. [2022-11-20 10:39:08,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18568 to 18568. [2022-11-20 10:39:08,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18568 states, 12620 states have (on average 1.2113312202852615) internal successors, (15287), 12831 states have internal predecessors, (15287), 4631 states have call successors, (4631), 1321 states have call predecessors, (4631), 1314 states have return successors, (4733), 4541 states have call predecessors, (4733), 4628 states have call successors, (4733) [2022-11-20 10:39:08,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18568 states to 18568 states and 24651 transitions. [2022-11-20 10:39:08,701 INFO L78 Accepts]: Start accepts. Automaton has 18568 states and 24651 transitions. Word has length 224 [2022-11-20 10:39:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:39:08,702 INFO L495 AbstractCegarLoop]: Abstraction has 18568 states and 24651 transitions. [2022-11-20 10:39:08,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 10:39:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 18568 states and 24651 transitions. [2022-11-20 10:39:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-20 10:39:08,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:39:08,710 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 13, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:39:08,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:39:08,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:08,931 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:39:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:08,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1340629659, now seen corresponding path program 1 times [2022-11-20 10:39:08,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:39:08,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050296713] [2022-11-20 10:39:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:08,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:08,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:39:08,937 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:39:08,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:39:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:14,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 4054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:39:14,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:39:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2022-11-20 10:39:15,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:39:15,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:39:15,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050296713] [2022-11-20 10:39:15,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050296713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:15,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:15,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:39:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435936126] [2022-11-20 10:39:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:15,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:39:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:15,235 INFO L87 Difference]: Start difference. First operand 18568 states and 24651 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 10:39:17,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:39:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:39:20,588 INFO L93 Difference]: Finished difference Result 40983 states and 54444 transitions. [2022-11-20 10:39:20,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:20,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 222 [2022-11-20 10:39:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:39:20,704 INFO L225 Difference]: With dead ends: 40983 [2022-11-20 10:39:20,704 INFO L226 Difference]: Without dead ends: 22446 [2022-11-20 10:39:20,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:20,774 INFO L413 NwaCegarLoop]: 4892 mSDtfsCounter, 2539 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 7535 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:39:20,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 7535 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 10:39:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22446 states. [2022-11-20 10:39:22,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22446 to 22410. [2022-11-20 10:39:22,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22410 states, 15344 states have (on average 1.2107664233576643) internal successors, (18578), 15596 states have internal predecessors, (18578), 5488 states have call successors, (5488), 1582 states have call predecessors, (5488), 1575 states have return successors, (5621), 5385 states have call predecessors, (5621), 5485 states have call successors, (5621) [2022-11-20 10:39:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22410 states to 22410 states and 29687 transitions. [2022-11-20 10:39:22,808 INFO L78 Accepts]: Start accepts. Automaton has 22410 states and 29687 transitions. Word has length 222 [2022-11-20 10:39:22,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:39:22,809 INFO L495 AbstractCegarLoop]: Abstraction has 22410 states and 29687 transitions. [2022-11-20 10:39:22,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 10:39:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 22410 states and 29687 transitions. [2022-11-20 10:39:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-20 10:39:22,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:39:22,815 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:39:22,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:39:23,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:23,039 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:39:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:23,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1725525502, now seen corresponding path program 1 times [2022-11-20 10:39:23,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:39:23,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116066931] [2022-11-20 10:39:23,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:23,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:23,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:39:23,045 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:39:23,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:39:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:28,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 4033 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:39:28,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:39:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-11-20 10:39:36,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:39:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-11-20 10:39:39,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:39:39,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116066931] [2022-11-20 10:39:39,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116066931] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:39:39,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:39:39,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 10:39:39,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997075726] [2022-11-20 10:39:39,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:39,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:39:39,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:39:39,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:39:39,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:39:39,560 INFO L87 Difference]: Start difference. First operand 22410 states and 29687 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:39:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:39:41,715 INFO L93 Difference]: Finished difference Result 22416 states and 29692 transitions. [2022-11-20 10:39:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:39:41,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 229 [2022-11-20 10:39:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:39:41,817 INFO L225 Difference]: With dead ends: 22416 [2022-11-20 10:39:41,817 INFO L226 Difference]: Without dead ends: 22414 [2022-11-20 10:39:41,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:39:41,828 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 2626 mSDsluCounter, 5367 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:39:41,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2635 Valid, 8060 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:39:41,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22414 states. [2022-11-20 10:39:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22414 to 22414. [2022-11-20 10:39:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22414 states, 15347 states have (on average 1.2107252231706522) internal successors, (18581), 15599 states have internal predecessors, (18581), 5488 states have call successors, (5488), 1583 states have call predecessors, (5488), 1576 states have return successors, (5621), 5385 states have call predecessors, (5621), 5485 states have call successors, (5621) [2022-11-20 10:39:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22414 states to 22414 states and 29690 transitions. [2022-11-20 10:39:44,062 INFO L78 Accepts]: Start accepts. Automaton has 22414 states and 29690 transitions. Word has length 229 [2022-11-20 10:39:44,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:39:44,063 INFO L495 AbstractCegarLoop]: Abstraction has 22414 states and 29690 transitions. [2022-11-20 10:39:44,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 10:39:44,063 INFO L276 IsEmpty]: Start isEmpty. Operand 22414 states and 29690 transitions. [2022-11-20 10:39:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-20 10:39:44,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:39:44,067 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:39:44,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:39:44,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:44,271 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:39:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:44,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2015434131, now seen corresponding path program 1 times [2022-11-20 10:39:44,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:39:44,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945295675] [2022-11-20 10:39:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:44,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:44,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:39:44,275 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:39:44,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:39:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:49,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 4040 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:39:49,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:39:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-11-20 10:39:58,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:40:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2022-11-20 10:40:00,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:00,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945295675] [2022-11-20 10:40:00,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945295675] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:40:00,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:40:00,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 10:40:00,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902061039] [2022-11-20 10:40:00,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:00,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:40:00,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:00,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:40:00,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:00,837 INFO L87 Difference]: Start difference. First operand 22414 states and 29690 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 10:40:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:03,109 INFO L93 Difference]: Finished difference Result 22420 states and 29695 transitions. [2022-11-20 10:40:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:03,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2022-11-20 10:40:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:03,204 INFO L225 Difference]: With dead ends: 22420 [2022-11-20 10:40:03,205 INFO L226 Difference]: Without dead ends: 22418 [2022-11-20 10:40:03,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:40:03,215 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 2626 mSDsluCounter, 5367 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2634 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:03,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2634 Valid, 8060 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:03,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22418 states. [2022-11-20 10:40:05,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22418 to 22418. [2022-11-20 10:40:05,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22418 states, 15350 states have (on average 1.2106840390879479) internal successors, (18584), 15602 states have internal predecessors, (18584), 5488 states have call successors, (5488), 1584 states have call predecessors, (5488), 1577 states have return successors, (5621), 5385 states have call predecessors, (5621), 5485 states have call successors, (5621) [2022-11-20 10:40:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22418 states to 22418 states and 29693 transitions. [2022-11-20 10:40:05,142 INFO L78 Accepts]: Start accepts. Automaton has 22418 states and 29693 transitions. Word has length 234 [2022-11-20 10:40:05,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:05,142 INFO L495 AbstractCegarLoop]: Abstraction has 22418 states and 29693 transitions. [2022-11-20 10:40:05,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 10:40:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 22418 states and 29693 transitions. [2022-11-20 10:40:05,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-20 10:40:05,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:05,147 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:05,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:40:05,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:05,348 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:40:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1737624802, now seen corresponding path program 1 times [2022-11-20 10:40:05,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:05,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915606762] [2022-11-20 10:40:05,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:05,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:05,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:05,354 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:40:05,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:40:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:10,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 4047 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:40:10,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:19,135 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-11-20 10:40:19,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:40:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-11-20 10:40:21,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:21,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915606762] [2022-11-20 10:40:21,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915606762] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:40:21,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:40:21,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 10:40:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95051806] [2022-11-20 10:40:21,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:21,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:40:21,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:21,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:40:21,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:40:21,810 INFO L87 Difference]: Start difference. First operand 22418 states and 29693 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 10:40:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:24,445 INFO L93 Difference]: Finished difference Result 22424 states and 29698 transitions. [2022-11-20 10:40:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:24,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 239 [2022-11-20 10:40:24,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:24,524 INFO L225 Difference]: With dead ends: 22424 [2022-11-20 10:40:24,524 INFO L226 Difference]: Without dead ends: 22422 [2022-11-20 10:40:24,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:40:24,534 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 2626 mSDsluCounter, 5367 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:24,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2633 Valid, 8060 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:24,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22422 states. [2022-11-20 10:40:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22422 to 22422. [2022-11-20 10:40:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22422 states, 15353 states have (on average 1.2106428711001107) internal successors, (18587), 15605 states have internal predecessors, (18587), 5488 states have call successors, (5488), 1585 states have call predecessors, (5488), 1578 states have return successors, (5621), 5385 states have call predecessors, (5621), 5485 states have call successors, (5621) [2022-11-20 10:40:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22422 states to 22422 states and 29696 transitions. [2022-11-20 10:40:26,568 INFO L78 Accepts]: Start accepts. Automaton has 22422 states and 29696 transitions. Word has length 239 [2022-11-20 10:40:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:26,568 INFO L495 AbstractCegarLoop]: Abstraction has 22422 states and 29696 transitions. [2022-11-20 10:40:26,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 10:40:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 22422 states and 29696 transitions. [2022-11-20 10:40:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-20 10:40:26,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:26,571 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:26,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:40:26,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:26,772 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:40:26,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:26,772 INFO L85 PathProgramCache]: Analyzing trace with hash -709579730, now seen corresponding path program 1 times [2022-11-20 10:40:26,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:26,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912606716] [2022-11-20 10:40:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:26,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:26,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:26,776 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:40:26,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 10:40:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:32,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 4103 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 10:40:32,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 142 proven. 3 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2022-11-20 10:40:38,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:40:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2022-11-20 10:40:44,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:44,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912606716] [2022-11-20 10:40:44,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912606716] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:40:44,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:40:44,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-11-20 10:40:44,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885943101] [2022-11-20 10:40:44,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:40:44,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 10:40:44,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:44,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 10:40:44,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 10:40:44,798 INFO L87 Difference]: Start difference. First operand 22422 states and 29696 transitions. Second operand has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (43), 3 states have call predecessors, (43), 8 states have return successors, (42), 7 states have call predecessors, (42), 6 states have call successors, (42) [2022-11-20 10:40:47,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:40:49,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:43:12,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:12,517 INFO L93 Difference]: Finished difference Result 44729 states and 59209 transitions. [2022-11-20 10:43:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 10:43:12,518 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (43), 3 states have call predecessors, (43), 8 states have return successors, (42), 7 states have call predecessors, (42), 6 states have call successors, (42) Word has length 262 [2022-11-20 10:43:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:12,640 INFO L225 Difference]: With dead ends: 44729 [2022-11-20 10:43:12,641 INFO L226 Difference]: Without dead ends: 44397 [2022-11-20 10:43:12,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-11-20 10:43:12,655 INFO L413 NwaCegarLoop]: 5047 mSDtfsCounter, 7290 mSDsluCounter, 75255 mSDsCounter, 0 mSdLazyCounter, 6536 mSolverCounterSat, 1422 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7350 SdHoareTripleChecker+Valid, 80302 SdHoareTripleChecker+Invalid, 7960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1422 IncrementalHoareTripleChecker+Valid, 6536 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:12,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7350 Valid, 80302 Invalid, 7960 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1422 Valid, 6536 Invalid, 2 Unknown, 0 Unchecked, 132.0s Time] [2022-11-20 10:43:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44397 states. [2022-11-20 10:43:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44397 to 44232. [2022-11-20 10:43:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44232 states, 30251 states have (on average 1.210935175696671) internal successors, (36632), 30757 states have internal predecessors, (36632), 10858 states have call successors, (10858), 3133 states have call predecessors, (10858), 3120 states have return successors, (11127), 10649 states have call predecessors, (11127), 10855 states have call successors, (11127) [2022-11-20 10:43:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44232 states to 44232 states and 58617 transitions. [2022-11-20 10:43:17,604 INFO L78 Accepts]: Start accepts. Automaton has 44232 states and 58617 transitions. Word has length 262 [2022-11-20 10:43:17,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:17,604 INFO L495 AbstractCegarLoop]: Abstraction has 44232 states and 58617 transitions. [2022-11-20 10:43:17,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.285714285714286) internal successors, (90), 20 states have internal predecessors, (90), 6 states have call successors, (43), 3 states have call predecessors, (43), 8 states have return successors, (42), 7 states have call predecessors, (42), 6 states have call successors, (42) [2022-11-20 10:43:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 44232 states and 58617 transitions. [2022-11-20 10:43:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-20 10:43:17,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:17,608 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:17,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:17,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:17,831 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:43:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1579862221, now seen corresponding path program 1 times [2022-11-20 10:43:17,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:43:17,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112954520] [2022-11-20 10:43:17,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:17,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:17,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:43:17,835 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:43:17,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 10:43:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:23,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 4054 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:43:23,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-20 10:43:33,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:43:36,111 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-20 10:43:36,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:43:36,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112954520] [2022-11-20 10:43:36,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112954520] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:43:36,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:43:36,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 10:43:36,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962672772] [2022-11-20 10:43:36,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:36,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:43:36,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:43:36,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:43:36,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:43:36,114 INFO L87 Difference]: Start difference. First operand 44232 states and 58617 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 10:43:41,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:41,115 INFO L93 Difference]: Finished difference Result 44238 states and 58622 transitions. [2022-11-20 10:43:41,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:43:41,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 244 [2022-11-20 10:43:41,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:41,223 INFO L225 Difference]: With dead ends: 44238 [2022-11-20 10:43:41,223 INFO L226 Difference]: Without dead ends: 44236 [2022-11-20 10:43:41,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:43:41,235 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 2626 mSDsluCounter, 5367 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2632 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:41,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2632 Valid, 8060 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:43:41,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44236 states. [2022-11-20 10:43:46,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44236 to 44236. [2022-11-20 10:43:46,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44236 states, 30254 states have (on average 1.2109142592715012) internal successors, (36635), 30760 states have internal predecessors, (36635), 10858 states have call successors, (10858), 3134 states have call predecessors, (10858), 3121 states have return successors, (11127), 10649 states have call predecessors, (11127), 10855 states have call successors, (11127) [2022-11-20 10:43:46,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44236 states to 44236 states and 58620 transitions. [2022-11-20 10:43:46,392 INFO L78 Accepts]: Start accepts. Automaton has 44236 states and 58620 transitions. Word has length 244 [2022-11-20 10:43:46,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:46,392 INFO L495 AbstractCegarLoop]: Abstraction has 44236 states and 58620 transitions. [2022-11-20 10:43:46,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 10:43:46,393 INFO L276 IsEmpty]: Start isEmpty. Operand 44236 states and 58620 transitions. [2022-11-20 10:43:46,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-20 10:43:46,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:46,397 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 13, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:46,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-20 10:43:46,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:46,604 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:43:46,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:46,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1894268990, now seen corresponding path program 1 times [2022-11-20 10:43:46,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:43:46,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534055090] [2022-11-20 10:43:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:46,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:46,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:43:46,609 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:43:46,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8105eb3-a232-4f25-a434-3a778e61750d/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 10:43:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:52,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 4061 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:43:52,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-11-20 10:44:01,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:44:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-11-20 10:44:05,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:44:05,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534055090] [2022-11-20 10:44:05,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534055090] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:44:05,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:44:05,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 10:44:05,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211034466] [2022-11-20 10:44:05,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:05,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:44:05,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:44:05,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:44:05,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:44:05,132 INFO L87 Difference]: Start difference. First operand 44236 states and 58620 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)