./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- 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 20:05:38,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:05:38,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:05:38,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:05:38,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:05:38,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:05:38,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:05:38,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:05:38,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:05:38,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:05:38,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:05:38,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:05:38,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:05:38,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:05:38,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:05:38,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:05:38,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:05:38,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:05:38,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:05:38,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:05:38,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:05:38,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:05:38,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:05:38,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:05:38,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:05:38,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:05:38,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:05:38,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:05:38,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:05:38,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:05:38,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:05:38,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:05:38,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:05:38,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:05:38,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:05:38,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:05:38,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:05:38,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:05:38,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:05:38,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:05:38,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:05:38,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:05:38,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:05:38,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:05:38,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:05:38,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:05:38,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:05:38,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:05:38,275 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:05:38,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:05:38,276 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:05:38,276 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:05:38,277 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:05:38,278 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:05:38,278 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:05:38,278 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:05:38,278 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:05:38,279 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:05:38,279 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:05:38,279 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:05:38,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:05:38,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:05:38,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:05:38,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:05:38,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:05:38,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:05:38,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:05:38,281 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:05:38,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:05:38,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:05:38,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:05:38,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:05:38,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:05:38,283 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:05:38,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:05:38,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:05:38,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:05:38,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:05:38,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:05:38,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:05:38,285 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2022-11-20 20:05:38,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:05:38,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:05:38,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:05:38,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:05:38,612 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:05:38,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 20:05:41,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:05:42,463 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:05:42,463 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 20:05:42,532 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data/31b41a448/125d82cb70d7430cbc4d2b920f646665/FLAG22dd0430a [2022-11-20 20:05:42,553 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data/31b41a448/125d82cb70d7430cbc4d2b920f646665 [2022-11-20 20:05:42,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:05:42,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:05:42,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:05:42,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:05:42,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:05:42,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:05:42" (1/1) ... [2022-11-20 20:05:42,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50782bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:42, skipping insertion in model container [2022-11-20 20:05:42,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:05:42" (1/1) ... [2022-11-20 20:05:42,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:05:42,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:05:43,885 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 20:05:43,893 INFO L158 Benchmark]: Toolchain (without parser) took 1332.10ms. Allocated memory is still 159.4MB. Free memory was 94.4MB in the beginning and 99.2MB in the end (delta: -4.8MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2022-11-20 20:05:43,893 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:05:43,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1327.57ms. Allocated memory is still 159.4MB. Free memory was 94.1MB in the beginning and 99.2MB in the end (delta: -5.0MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2022-11-20 20:05:43,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1327.57ms. Allocated memory is still 159.4MB. Free memory was 94.1MB in the beginning and 99.2MB in the end (delta: -5.0MB). Peak memory consumption was 45.3MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- 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 20:05:46,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:05:46,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:05:46,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:05:46,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:05:46,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:05:46,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:05:46,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:05:46,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:05:46,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:05:46,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:05:46,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:05:46,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:05:46,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:05:46,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:05:46,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:05:46,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:05:46,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:05:46,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:05:46,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:05:46,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:05:46,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:05:46,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:05:46,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:05:46,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:05:46,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:05:46,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:05:46,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:05:46,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:05:46,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:05:46,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:05:46,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:05:46,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:05:46,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:05:46,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:05:46,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:05:46,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:05:46,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:05:46,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:05:46,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:05:46,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:05:46,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:05:46,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:05:46,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:05:46,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:05:46,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:05:46,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:05:46,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:05:46,515 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:05:46,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:05:46,515 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:05:46,516 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:05:46,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:05:46,517 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:05:46,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:05:46,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:05:46,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:05:46,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:05:46,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:05:46,519 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:05:46,519 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:05:46,519 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:05:46,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:05:46,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:05:46,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:05:46,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:05:46,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:05:46,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:05:46,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:05:46,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:05:46,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:05:46,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:05:46,522 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:05:46,522 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:05:46,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:05:46,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:05:46,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:05:46,524 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2022-11-20 20:05:46,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:05:46,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:05:46,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:05:46,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:05:46,945 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:05:46,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 20:05:50,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:05:50,863 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:05:50,864 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 20:05:50,986 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data/d35fd80a6/d3ab4f69715540c1a33fef8bc3501dc7/FLAG1b2bb2564 [2022-11-20 20:05:51,021 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/data/d35fd80a6/d3ab4f69715540c1a33fef8bc3501dc7 [2022-11-20 20:05:51,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:05:51,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:05:51,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:05:51,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:05:51,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:05:51,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:05:51" (1/1) ... [2022-11-20 20:05:51,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c97a055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:51, skipping insertion in model container [2022-11-20 20:05:51,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:05:51" (1/1) ... [2022-11-20 20:05:51,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:05:51,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:05:55,167 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-20 20:05:55,172 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-20 20:05:55,173 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-20 20:05:55,174 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-20 20:05:55,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:05:55,398 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:05:55,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:05:56,156 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-20 20:05:56,157 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-20 20:05:56,157 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-20 20:05:56,157 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-20 20:05:56,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:05:56,231 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:05:57,213 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-20 20:05:57,213 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-20 20:05:57,214 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-20 20:05:57,214 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_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-20 20:05:57,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:05:57,439 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:05:57,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57 WrapperNode [2022-11-20 20:05:57,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:05:57,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:05:57,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:05:57,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:05:57,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:57,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:57,947 INFO L138 Inliner]: procedures = 501, calls = 4163, calls flagged for inlining = 274, calls inlined = 263, statements flattened = 8380 [2022-11-20 20:05:57,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:05:57,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:05:57,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:05:57,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:05:57,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:57,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,380 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:05:58,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:05:58,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:05:58,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:05:58,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (1/1) ... [2022-11-20 20:05:58,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:05:58,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:05:58,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:05:58,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:05:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-20 20:05:58,565 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-20 20:05:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:05:58,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:05:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-20 20:05:58,566 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-20 20:05:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-11-20 20:05:58,566 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-11-20 20:05:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-20 20:05:58,567 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-20 20:05:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:05:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:05:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-11-20 20:05:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-11-20 20:05:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-20 20:05:58,569 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-20 20:05:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-20 20:05:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-20 20:05:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 20:05:58,571 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 20:05:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-11-20 20:05:58,571 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-11-20 20:05:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-11-20 20:05:58,571 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-11-20 20:05:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2022-11-20 20:05:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2022-11-20 20:05:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-11-20 20:05:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-11-20 20:05:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-11-20 20:05:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-11-20 20:05:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 20:05:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 20:05:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-20 20:05:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-20 20:05:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-11-20 20:05:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-11-20 20:05:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-20 20:05:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-20 20:05:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 20:05:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 20:05:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-11-20 20:05:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-11-20 20:05:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-20 20:05:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-20 20:05:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-11-20 20:05:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-11-20 20:05:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-11-20 20:05:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-11-20 20:05:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 20:05:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 20:05:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:05:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:05:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 20:05:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 20:05:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-20 20:05:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-20 20:05:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-20 20:05:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-20 20:05:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:05:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:05:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-11-20 20:05:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-11-20 20:05:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-11-20 20:05:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-11-20 20:05:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-20 20:05:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-20 20:05:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 20:05:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 20:05:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 20:05:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 20:05:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-11-20 20:05:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-11-20 20:05:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-20 20:05:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-20 20:05:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-20 20:05:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-20 20:05:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:05:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-11-20 20:05:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-11-20 20:05:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 20:05:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:05:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-11-20 20:05:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-11-20 20:05:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:05:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:05:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 20:05:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 20:05:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-11-20 20:05:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 20:05:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 20:05:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-20 20:05:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-20 20:05:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-20 20:05:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-20 20:05:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:05:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:05:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-11-20 20:05:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-11-20 20:05:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2022-11-20 20:05:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2022-11-20 20:05:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-11-20 20:05:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-11-20 20:05:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 20:05:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 20:05:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-20 20:05:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-20 20:05:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-11-20 20:05:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-11-20 20:05:58,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 20:05:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 20:05:58,596 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-11-20 20:05:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-11-20 20:05:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:05:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:05:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-11-20 20:05:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-11-20 20:05:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-20 20:05:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-20 20:05:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 20:05:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 20:05:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-11-20 20:05:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-11-20 20:05:58,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 20:05:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 20:05:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-11-20 20:05:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-11-20 20:05:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-20 20:05:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-20 20:05:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:05:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:05:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-11-20 20:05:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-11-20 20:05:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:05:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 20:05:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 20:05:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 20:05:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 20:05:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 20:05:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 20:05:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-20 20:05:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-20 20:05:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-20 20:05:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-20 20:05:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:05:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:05:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:05:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:05:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-11-20 20:05:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-11-20 20:05:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:05:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:05:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-11-20 20:05:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-11-20 20:05:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-20 20:05:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-20 20:05:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-11-20 20:05:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-11-20 20:05:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 20:05:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 20:05:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-11-20 20:05:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-11-20 20:05:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-20 20:05:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-20 20:05:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-11-20 20:05:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-11-20 20:05:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-11-20 20:05:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-11-20 20:05:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-11-20 20:05:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-11-20 20:05:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-11-20 20:05:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-11-20 20:05:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-11-20 20:05:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-11-20 20:05:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-11-20 20:05:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-11-20 20:05:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-11-20 20:05:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-11-20 20:05:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-20 20:05:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-20 20:05:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 20:05:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 20:05:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-20 20:05:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-20 20:05:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:05:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:05:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-11-20 20:05:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-11-20 20:05:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 20:05:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 20:05:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:05:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 20:05:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 20:05:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:05:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:05:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:05:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:05:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-11-20 20:05:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-11-20 20:05:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-20 20:05:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-20 20:05:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-11-20 20:05:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-11-20 20:05:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-11-20 20:05:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-11-20 20:05:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-20 20:05:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-20 20:05:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 20:05:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 20:05:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-11-20 20:05:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-11-20 20:05:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-11-20 20:05:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-11-20 20:05:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-20 20:05:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-20 20:05:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-11-20 20:05:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-11-20 20:05:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-20 20:05:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-20 20:05:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-11-20 20:05:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-11-20 20:05:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 20:05:58,615 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 20:05:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-20 20:05:58,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-20 20:05:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:05:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 20:05:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 20:05:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:05:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-11-20 20:05:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-11-20 20:05:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-11-20 20:05:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-11-20 20:05:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:05:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:05:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-20 20:05:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-20 20:05:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-11-20 20:05:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-11-20 20:05:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:05:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:05:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:05:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-20 20:05:58,618 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-20 20:05:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 20:05:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 20:05:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-11-20 20:05:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-11-20 20:05:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 20:05:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 20:05:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:05:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:05:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 20:05:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 20:05:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 20:05:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 20:05:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-20 20:05:58,627 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-20 20:05:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 20:05:58,627 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 20:05:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-20 20:05:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-20 20:05:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 20:05:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 20:05:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-20 20:05:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-20 20:05:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2022-11-20 20:05:58,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2022-11-20 20:05:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2022-11-20 20:05:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2022-11-20 20:05:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:05:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:05:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 20:05:58,629 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 20:05:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 20:05:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 20:05:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:05:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:05:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:05:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:05:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:05:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-20 20:05:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-20 20:05:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 20:05:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 20:05:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-11-20 20:05:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-11-20 20:05:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 20:05:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 20:05:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 20:05:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 20:05:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-11-20 20:05:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-11-20 20:05:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-11-20 20:05:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-11-20 20:05:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-11-20 20:05:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-11-20 20:05:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:05:58,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:05:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 20:05:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 20:05:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 20:05:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 20:05:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-11-20 20:05:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-11-20 20:05:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 20:05:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 20:05:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-11-20 20:05:58,633 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-11-20 20:05:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 20:05:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 20:05:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-11-20 20:05:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-11-20 20:05:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 20:05:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 20:05:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-11-20 20:05:58,634 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-11-20 20:05:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 20:05:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 20:06:00,237 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:06:00,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:06:01,067 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:07:52,375 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 20:07:52,603 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:07:52,635 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:07:52,636 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 20:07:52,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:07:52 BoogieIcfgContainer [2022-11-20 20:07:52,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:07:52,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:07:52,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:07:52,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:07:52,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:05:51" (1/3) ... [2022-11-20 20:07:52,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f23fbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:07:52, skipping insertion in model container [2022-11-20 20:07:52,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:05:57" (2/3) ... [2022-11-20 20:07:52,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f23fbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:07:52, skipping insertion in model container [2022-11-20 20:07:52,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:07:52" (3/3) ... [2022-11-20 20:07:52,654 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 20:07:52,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:07:52,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 20:07:52,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:07:52,801 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=FINITE_AUTOMATA, 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;@7db3c1fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:07:52,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 20:07:52,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 2864 states, 1960 states have (on average 1.260204081632653) internal successors, (2470), 1975 states have internal predecessors, (2470), 755 states have call successors, (755), 147 states have call predecessors, (755), 146 states have return successors, (748), 747 states have call predecessors, (748), 748 states have call successors, (748) [2022-11-20 20:07:52,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-11-20 20:07:52,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:07:52,887 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:52,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:07:52,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:07:52,899 INFO L85 PathProgramCache]: Analyzing trace with hash 859840949, now seen corresponding path program 1 times [2022-11-20 20:07:52,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:07:52,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365376793] [2022-11-20 20:07:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:07:52,929 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 20:07:52,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:07:52,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:07:52,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:08:04,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 6502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:08:04,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:08:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 20:08:04,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:08:04,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:08:04,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365376793] [2022-11-20 20:08:04,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365376793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:08:04,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:08:04,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:08:04,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461349631] [2022-11-20 20:08:04,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:08:04,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:08:04,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:08:04,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:08:04,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:08:04,581 INFO L87 Difference]: Start difference. First operand has 2864 states, 1960 states have (on average 1.260204081632653) internal successors, (2470), 1975 states have internal predecessors, (2470), 755 states have call successors, (755), 147 states have call predecessors, (755), 146 states have return successors, (748), 747 states have call predecessors, (748), 748 states have call successors, (748) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-20 20:08:08,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:08:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:08:08,938 INFO L93 Difference]: Finished difference Result 8273 states and 11662 transitions. [2022-11-20 20:08:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:08:08,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 571 [2022-11-20 20:08:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:08:09,006 INFO L225 Difference]: With dead ends: 8273 [2022-11-20 20:08:09,007 INFO L226 Difference]: Without dead ends: 5493 [2022-11-20 20:08:09,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 569 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 20:08:09,039 INFO L413 NwaCegarLoop]: 4631 mSDtfsCounter, 3680 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3680 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:08:09,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3680 Valid, 8519 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 20:08:09,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2022-11-20 20:08:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 5489. [2022-11-20 20:08:09,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5489 states, 3781 states have (on average 1.25575244644274) internal successors, (4748), 3810 states have internal predecessors, (4748), 1417 states have call successors, (1417), 289 states have call predecessors, (1417), 288 states have return successors, (1413), 1411 states have call predecessors, (1413), 1413 states have call successors, (1413) [2022-11-20 20:08:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5489 states to 5489 states and 7578 transitions. [2022-11-20 20:08:09,477 INFO L78 Accepts]: Start accepts. Automaton has 5489 states and 7578 transitions. Word has length 571 [2022-11-20 20:08:09,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:08:09,480 INFO L495 AbstractCegarLoop]: Abstraction has 5489 states and 7578 transitions. [2022-11-20 20:08:09,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-20 20:08:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5489 states and 7578 transitions. [2022-11-20 20:08:09,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2022-11-20 20:08:09,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:08:09,504 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:09,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:09,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:09,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:08:09,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:08:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1989187559, now seen corresponding path program 1 times [2022-11-20 20:08:09,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:08:09,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006594461] [2022-11-20 20:08:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:08:09,729 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 20:08:09,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:08:09,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:09,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:08:19,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 6575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:08:20,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:08:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 20:08:20,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:08:20,256 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:08:20,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006594461] [2022-11-20 20:08:20,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006594461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:08:20,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:08:20,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:08:20,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734668289] [2022-11-20 20:08:20,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:08:20,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:08:20,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:08:20,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:08:20,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:08:20,262 INFO L87 Difference]: Start difference. First operand 5489 states and 7578 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 20:08:23,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:08:25,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:08:25,083 INFO L93 Difference]: Finished difference Result 13143 states and 18080 transitions. [2022-11-20 20:08:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:08:25,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 585 [2022-11-20 20:08:25,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:08:25,139 INFO L225 Difference]: With dead ends: 13143 [2022-11-20 20:08:25,139 INFO L226 Difference]: Without dead ends: 7757 [2022-11-20 20:08:25,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 583 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 20:08:25,166 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 3394 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3394 SdHoareTripleChecker+Valid, 8357 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:08:25,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3394 Valid, 8357 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 20:08:25,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7757 states. [2022-11-20 20:08:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7757 to 7734. [2022-11-20 20:08:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7734 states, 5344 states have (on average 1.2554266467065869) internal successors, (6709), 5390 states have internal predecessors, (6709), 1952 states have call successors, (1952), 436 states have call predecessors, (1952), 435 states have return successors, (1948), 1940 states have call predecessors, (1948), 1948 states have call successors, (1948) [2022-11-20 20:08:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7734 states to 7734 states and 10609 transitions. [2022-11-20 20:08:25,807 INFO L78 Accepts]: Start accepts. Automaton has 7734 states and 10609 transitions. Word has length 585 [2022-11-20 20:08:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:08:25,812 INFO L495 AbstractCegarLoop]: Abstraction has 7734 states and 10609 transitions. [2022-11-20 20:08:25,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 20:08:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 7734 states and 10609 transitions. [2022-11-20 20:08:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2022-11-20 20:08:25,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:08:25,834 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:25,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:26,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:26,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:08:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:08:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1167308247, now seen corresponding path program 1 times [2022-11-20 20:08:26,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:08:26,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129660639] [2022-11-20 20:08:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:08:26,061 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 20:08:26,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:08:26,062 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:26,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:08:36,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 6576 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:08:36,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:08:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 20:08:36,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:08:36,870 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:08:36,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129660639] [2022-11-20 20:08:36,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129660639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:08:36,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:08:36,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:08:36,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997683947] [2022-11-20 20:08:36,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:08:36,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:08:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:08:36,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:08:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:08:36,879 INFO L87 Difference]: Start difference. First operand 7734 states and 10609 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 20:08:40,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:08:41,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:08:41,851 INFO L93 Difference]: Finished difference Result 18873 states and 25865 transitions. [2022-11-20 20:08:41,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:08:41,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 586 [2022-11-20 20:08:41,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:08:41,924 INFO L225 Difference]: With dead ends: 18873 [2022-11-20 20:08:41,924 INFO L226 Difference]: Without dead ends: 11242 [2022-11-20 20:08:41,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 584 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 20:08:41,961 INFO L413 NwaCegarLoop]: 5370 mSDtfsCounter, 3348 mSDsluCounter, 3800 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3348 SdHoareTripleChecker+Valid, 9170 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:08:41,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3348 Valid, 9170 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 20:08:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11242 states. [2022-11-20 20:08:42,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11242 to 11221. [2022-11-20 20:08:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11221 states, 7724 states have (on average 1.2510357327809425) internal successors, (9663), 7804 states have internal predecessors, (9663), 2848 states have call successors, (2848), 647 states have call predecessors, (2848), 646 states have return successors, (2844), 2824 states have call predecessors, (2844), 2844 states have call successors, (2844) [2022-11-20 20:08:42,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11221 states to 11221 states and 15355 transitions. [2022-11-20 20:08:42,850 INFO L78 Accepts]: Start accepts. Automaton has 11221 states and 15355 transitions. Word has length 586 [2022-11-20 20:08:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:08:42,853 INFO L495 AbstractCegarLoop]: Abstraction has 11221 states and 15355 transitions. [2022-11-20 20:08:42,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 20:08:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 11221 states and 15355 transitions. [2022-11-20 20:08:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-20 20:08:42,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:08:42,872 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:43,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:43,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:43,091 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:08:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:08:43,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2005580946, now seen corresponding path program 1 times [2022-11-20 20:08:43,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:08:43,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006809777] [2022-11-20 20:08:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:08:43,101 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 20:08:43,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:08:43,102 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:43,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:08:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:08:53,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 6606 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:08:53,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:08:54,120 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 20:08:54,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:08:54,126 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:08:54,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006809777] [2022-11-20 20:08:54,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006809777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:08:54,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:08:54,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:08:54,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912464390] [2022-11-20 20:08:54,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:08:54,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:08:54,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:08:54,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:08:54,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:08:54,132 INFO L87 Difference]: Start difference. First operand 11221 states and 15355 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 20:08:57,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:08:59,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:08:59,354 INFO L93 Difference]: Finished difference Result 29428 states and 40321 transitions. [2022-11-20 20:08:59,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:08:59,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 591 [2022-11-20 20:08:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:08:59,490 INFO L225 Difference]: With dead ends: 29428 [2022-11-20 20:08:59,490 INFO L226 Difference]: Without dead ends: 18310 [2022-11-20 20:08:59,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 589 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 20:08:59,550 INFO L413 NwaCegarLoop]: 5020 mSDtfsCounter, 3479 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3479 SdHoareTripleChecker+Valid, 8885 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:08:59,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3479 Valid, 8885 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-20 20:08:59,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18310 states. [2022-11-20 20:09:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18310 to 18285. [2022-11-20 20:09:00,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18285 states, 12699 states have (on average 1.2562406488699898) internal successors, (15953), 12829 states have internal predecessors, (15953), 4531 states have call successors, (4531), 1057 states have call predecessors, (4531), 1052 states have return successors, (4527), 4479 states have call predecessors, (4527), 4527 states have call successors, (4527) [2022-11-20 20:09:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18285 states to 18285 states and 25011 transitions. [2022-11-20 20:09:01,032 INFO L78 Accepts]: Start accepts. Automaton has 18285 states and 25011 transitions. Word has length 591 [2022-11-20 20:09:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:09:01,034 INFO L495 AbstractCegarLoop]: Abstraction has 18285 states and 25011 transitions. [2022-11-20 20:09:01,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 20:09:01,034 INFO L276 IsEmpty]: Start isEmpty. Operand 18285 states and 25011 transitions. [2022-11-20 20:09:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-20 20:09:01,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:09:01,046 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:01,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:01,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:01,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:09:01,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:09:01,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1798258881, now seen corresponding path program 1 times [2022-11-20 20:09:01,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:09:01,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250896623] [2022-11-20 20:09:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:01,282 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 20:09:01,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:09:01,284 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:01,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:12,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 6631 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:09:12,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:09:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 11046 trivial. 0 not checked. [2022-11-20 20:09:13,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:09:13,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:09:13,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250896623] [2022-11-20 20:09:13,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250896623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:09:13,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:09:13,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:09:13,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473584411] [2022-11-20 20:09:13,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:09:13,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:09:13,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:09:13,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:09:13,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:09:13,012 INFO L87 Difference]: Start difference. First operand 18285 states and 25011 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 20:09:16,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:09:18,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:09:18,735 INFO L93 Difference]: Finished difference Result 52428 states and 71720 transitions. [2022-11-20 20:09:18,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:09:18,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 631 [2022-11-20 20:09:18,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:09:19,153 INFO L225 Difference]: With dead ends: 52428 [2022-11-20 20:09:19,153 INFO L226 Difference]: Without dead ends: 35043 [2022-11-20 20:09:19,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 629 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 20:09:19,216 INFO L413 NwaCegarLoop]: 7292 mSDtfsCounter, 3638 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 11183 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:09:19,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3638 Valid, 11183 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-20 20:09:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35043 states. [2022-11-20 20:09:22,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35043 to 35039. [2022-11-20 20:09:22,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35039 states, 24366 states have (on average 1.2563408027579415) internal successors, (30612), 24579 states have internal predecessors, (30612), 8637 states have call successors, (8637), 2038 states have call predecessors, (8637), 2033 states have return successors, (8633), 8578 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-11-20 20:09:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35039 states to 35039 states and 47882 transitions. [2022-11-20 20:09:22,637 INFO L78 Accepts]: Start accepts. Automaton has 35039 states and 47882 transitions. Word has length 631 [2022-11-20 20:09:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:09:22,639 INFO L495 AbstractCegarLoop]: Abstraction has 35039 states and 47882 transitions. [2022-11-20 20:09:22,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 20:09:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 35039 states and 47882 transitions. [2022-11-20 20:09:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-20 20:09:22,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:09:22,653 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:22,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:22,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:22,867 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:09:22,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:09:22,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1110505021, now seen corresponding path program 1 times [2022-11-20 20:09:22,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:09:22,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106175877] [2022-11-20 20:09:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:22,873 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 20:09:22,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:09:22,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:22,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:33,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 6631 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:09:33,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:09:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 20:09:39,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:09:39,675 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:09:39,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106175877] [2022-11-20 20:09:39,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106175877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:09:39,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:09:39,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:09:39,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100829771] [2022-11-20 20:09:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:09:39,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:09:39,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:09:39,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:09:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:09:39,680 INFO L87 Difference]: Start difference. First operand 35039 states and 47882 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-20 20:09:41,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:09:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:09:42,956 INFO L93 Difference]: Finished difference Result 35045 states and 47887 transitions. [2022-11-20 20:09:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:09:42,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 631 [2022-11-20 20:09:42,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:09:43,127 INFO L225 Difference]: With dead ends: 35045 [2022-11-20 20:09:43,128 INFO L226 Difference]: Without dead ends: 35043 [2022-11-20 20:09:43,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:09:43,142 INFO L413 NwaCegarLoop]: 3927 mSDtfsCounter, 3725 mSDsluCounter, 7848 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 11775 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:09:43,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3726 Valid, 11775 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 20:09:43,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35043 states. [2022-11-20 20:09:45,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35043 to 35043. [2022-11-20 20:09:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35043 states, 24369 states have (on average 1.2563092453527023) internal successors, (30615), 24582 states have internal predecessors, (30615), 8637 states have call successors, (8637), 2039 states have call predecessors, (8637), 2034 states have return successors, (8633), 8578 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-11-20 20:09:45,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35043 states to 35043 states and 47885 transitions. [2022-11-20 20:09:45,761 INFO L78 Accepts]: Start accepts. Automaton has 35043 states and 47885 transitions. Word has length 631 [2022-11-20 20:09:45,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:09:45,762 INFO L495 AbstractCegarLoop]: Abstraction has 35043 states and 47885 transitions. [2022-11-20 20:09:45,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-20 20:09:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 35043 states and 47885 transitions. [2022-11-20 20:09:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-11-20 20:09:45,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:09:45,777 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:45,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:45,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:45,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:09:45,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:09:45,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1785183348, now seen corresponding path program 1 times [2022-11-20 20:09:46,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:09:46,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694169341] [2022-11-20 20:09:46,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:09:46,002 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 20:09:46,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:09:46,004 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:46,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:09:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:09:56,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 6638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:09:56,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:10:03,086 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 20:10:03,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:10:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 20:10:05,562 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:10:05,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694169341] [2022-11-20 20:10:05,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694169341] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:10:05,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:10:05,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 20:10:05,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547165497] [2022-11-20 20:10:05,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:10:05,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:10:05,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:10:05,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:10:05,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:10:05,566 INFO L87 Difference]: Start difference. First operand 35043 states and 47885 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-20 20:10:07,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:10:09,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:10:09,522 INFO L93 Difference]: Finished difference Result 35049 states and 47890 transitions. [2022-11-20 20:10:09,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:10:09,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 636 [2022-11-20 20:10:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:10:09,705 INFO L225 Difference]: With dead ends: 35049 [2022-11-20 20:10:09,705 INFO L226 Difference]: Without dead ends: 35047 [2022-11-20 20:10:09,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:10:09,727 INFO L413 NwaCegarLoop]: 3930 mSDtfsCounter, 3789 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3793 SdHoareTripleChecker+Valid, 11777 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:10:09,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3793 Valid, 11777 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 20:10:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35047 states. [2022-11-20 20:10:11,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35047 to 35047. [2022-11-20 20:10:11,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35047 states, 24372 states have (on average 1.256277695716396) internal successors, (30618), 24585 states have internal predecessors, (30618), 8637 states have call successors, (8637), 2040 states have call predecessors, (8637), 2035 states have return successors, (8633), 8578 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-11-20 20:10:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35047 states to 35047 states and 47888 transitions. [2022-11-20 20:10:12,104 INFO L78 Accepts]: Start accepts. Automaton has 35047 states and 47888 transitions. Word has length 636 [2022-11-20 20:10:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:10:12,105 INFO L495 AbstractCegarLoop]: Abstraction has 35047 states and 47888 transitions. [2022-11-20 20:10:12,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-20 20:10:12,105 INFO L276 IsEmpty]: Start isEmpty. Operand 35047 states and 47888 transitions. [2022-11-20 20:10:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2022-11-20 20:10:12,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:10:12,121 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:12,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:12,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:12,335 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:10:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:10:12,336 INFO L85 PathProgramCache]: Analyzing trace with hash 36009370, now seen corresponding path program 1 times [2022-11-20 20:10:12,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:10:12,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057686095] [2022-11-20 20:10:12,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:10:12,344 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 20:10:12,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:10:12,346 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:12,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:10:23,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 6689 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:10:23,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:10:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 11244 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 11058 trivial. 0 not checked. [2022-11-20 20:10:23,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:10:23,313 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:10:23,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057686095] [2022-11-20 20:10:23,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057686095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:10:23,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:10:23,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:10:23,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515765701] [2022-11-20 20:10:23,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:10:23,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:10:23,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:10:23,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:10:23,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:10:23,320 INFO L87 Difference]: Start difference. First operand 35047 states and 47888 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-20 20:10:26,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:10:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:10:30,154 INFO L93 Difference]: Finished difference Result 85980 states and 117512 transitions. [2022-11-20 20:10:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:10:30,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 649 [2022-11-20 20:10:30,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:10:30,364 INFO L225 Difference]: With dead ends: 85980 [2022-11-20 20:10:30,364 INFO L226 Difference]: Without dead ends: 51833 [2022-11-20 20:10:30,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 647 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 20:10:30,475 INFO L413 NwaCegarLoop]: 7574 mSDtfsCounter, 3660 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 11467 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:10:30,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 11467 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 20:10:30,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51833 states. [2022-11-20 20:10:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51833 to 51809. [2022-11-20 20:10:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51809 states, 36047 states have (on average 1.2562765278663965) internal successors, (45285), 36343 states have internal predecessors, (45285), 12743 states have call successors, (12743), 3021 states have call predecessors, (12743), 3016 states have return successors, (12739), 12677 states have call predecessors, (12739), 12739 states have call successors, (12739) [2022-11-20 20:10:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51809 states to 51809 states and 70767 transitions. [2022-11-20 20:10:34,510 INFO L78 Accepts]: Start accepts. Automaton has 51809 states and 70767 transitions. Word has length 649 [2022-11-20 20:10:34,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:10:34,512 INFO L495 AbstractCegarLoop]: Abstraction has 51809 states and 70767 transitions. [2022-11-20 20:10:34,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-20 20:10:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 51809 states and 70767 transitions. [2022-11-20 20:10:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-11-20 20:10:34,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:10:34,532 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:34,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:34,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:34,755 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:10:34,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:10:34,756 INFO L85 PathProgramCache]: Analyzing trace with hash -912971741, now seen corresponding path program 1 times [2022-11-20 20:10:34,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:10:34,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94212010] [2022-11-20 20:10:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:10:34,767 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 20:10:34,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:10:34,768 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:34,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:10:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:10:45,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 6645 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:10:45,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:10:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11232 trivial. 0 not checked. [2022-11-20 20:10:51,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:10:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11232 trivial. 0 not checked. [2022-11-20 20:10:53,399 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:10:53,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94212010] [2022-11-20 20:10:53,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94212010] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:10:53,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:10:53,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 20:10:53,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910732236] [2022-11-20 20:10:53,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:10:53,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:10:53,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:10:53,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:10:53,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:10:53,403 INFO L87 Difference]: Start difference. First operand 51809 states and 70767 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 20:10:54,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:10:58,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:10:58,352 INFO L93 Difference]: Finished difference Result 67887 states and 91699 transitions. [2022-11-20 20:10:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:10:58,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 641 [2022-11-20 20:10:58,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:10:58,615 INFO L225 Difference]: With dead ends: 67887 [2022-11-20 20:10:58,616 INFO L226 Difference]: Without dead ends: 67885 [2022-11-20 20:10:58,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1283 GetRequests, 1275 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:10:58,647 INFO L413 NwaCegarLoop]: 4193 mSDtfsCounter, 3419 mSDsluCounter, 9810 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 14003 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:10:58,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 14003 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 20:10:58,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67885 states. [2022-11-20 20:11:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67885 to 67548. [2022-11-20 20:11:03,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67548 states, 46748 states have (on average 1.2485026097373149) internal successors, (58365), 47200 states have internal predecessors, (58365), 16403 states have call successors, (16403), 4465 states have call predecessors, (16403), 4394 states have return successors, (16513), 16115 states have call predecessors, (16513), 16399 states have call successors, (16513) [2022-11-20 20:11:04,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67548 states to 67548 states and 91281 transitions. [2022-11-20 20:11:04,056 INFO L78 Accepts]: Start accepts. Automaton has 67548 states and 91281 transitions. Word has length 641 [2022-11-20 20:11:04,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:11:04,057 INFO L495 AbstractCegarLoop]: Abstraction has 67548 states and 91281 transitions. [2022-11-20 20:11:04,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 20:11:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 67548 states and 91281 transitions. [2022-11-20 20:11:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2022-11-20 20:11:04,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:11:04,077 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:04,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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)] Ended with exit code 0 [2022-11-20 20:11:04,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:11:04,291 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:11:04,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:11:04,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1613772396, now seen corresponding path program 1 times [2022-11-20 20:11:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:11:04,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343406993] [2022-11-20 20:11:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:11:04,300 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 20:11:04,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:11:04,300 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:11:04,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_906bef1f-6bb1-4fe5-8cc3-4239e6b2381a/bin/utaipan-6cKwYrpEi9/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 20:11:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:11:14,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 6652 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:11:14,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:11:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 11246 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11240 trivial. 0 not checked. [2022-11-20 20:11:21,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:11:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 11246 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11240 trivial. 0 not checked. [2022-11-20 20:11:23,437 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:11:23,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343406993] [2022-11-20 20:11:23,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343406993] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:11:23,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:11:23,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 20:11:23,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276029707] [2022-11-20 20:11:23,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:11:23,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:11:23,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:11:23,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:11:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:11:23,441 INFO L87 Difference]: Start difference. First operand 67548 states and 91281 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-20 20:11:24,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:11:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:11:28,833 INFO L93 Difference]: Finished difference Result 67554 states and 91286 transitions. [2022-11-20 20:11:28,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:11:28,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 646 [2022-11-20 20:11:28,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:11:29,118 INFO L225 Difference]: With dead ends: 67554 [2022-11-20 20:11:29,118 INFO L226 Difference]: Without dead ends: 67552 [2022-11-20 20:11:29,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1293 GetRequests, 1285 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:11:29,144 INFO L413 NwaCegarLoop]: 3930 mSDtfsCounter, 3789 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3791 SdHoareTripleChecker+Valid, 11777 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:11:29,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3791 Valid, 11777 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 20:11:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67552 states.