./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-spinlock_drivers-net-usb-smsc95xx.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_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- 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 09:27:08,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:08,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:08,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:08,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:08,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:08,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:08,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:08,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:08,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:08,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:08,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:08,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:08,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:08,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:08,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:08,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:08,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:08,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:08,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:08,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:08,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:08,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:08,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:08,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:08,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:08,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:08,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:08,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:08,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:08,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:08,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:08,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:08,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:08,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:08,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:08,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:08,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:08,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:08,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:08,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:08,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:27:08,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:08,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:08,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:08,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:08,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:08,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:08,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:08,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:08,190 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:08,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:08,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:08,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:08,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:08,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:08,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:08,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:08,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:08,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:08,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:08,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:08,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:08,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:08,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:08,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:08,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:08,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:08,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:08,196 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:08,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:08,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:08,197 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_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2022-11-20 09:27:08,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:08,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:08,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:08,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:08,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:08,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-11-20 09:27:11,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:12,312 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:12,313 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-11-20 09:27:12,363 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data/247a40d0c/1e1e875f90ad4a30aa1c64c0043111b4/FLAG725caa88f [2022-11-20 09:27:12,384 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data/247a40d0c/1e1e875f90ad4a30aa1c64c0043111b4 [2022-11-20 09:27:12,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:12,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:12,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:12,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:12,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:12,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e73b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12, skipping insertion in model container [2022-11-20 09:27:12,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:12,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:13,222 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 09:27:13,231 INFO L158 Benchmark]: Toolchain (without parser) took 839.90ms. Allocated memory is still 130.0MB. Free memory was 63.5MB in the beginning and 81.0MB in the end (delta: -17.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-11-20 09:27:13,232 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:13,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 837.56ms. Allocated memory is still 130.0MB. Free memory was 63.5MB in the beginning and 81.0MB in the end (delta: -17.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-11-20 09:27:13,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 837.56ms. Allocated memory is still 130.0MB. Free memory was 63.5MB in the beginning and 81.0MB in the end (delta: -17.5MB). Peak memory consumption was 22.5MB. 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_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- 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 09:27:15,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:15,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:15,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:15,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:15,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:15,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:15,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:15,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:15,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:15,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:15,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:15,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:15,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:15,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:15,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:15,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:15,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:15,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:15,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:15,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:15,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:15,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:15,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:15,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:15,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:15,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:15,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:15,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:15,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:15,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:15,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:15,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:15,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:15,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:15,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:15,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:15,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:15,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:15,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:15,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:15,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:27:15,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:15,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:15,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:15,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:15,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:15,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:15,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:15,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:15,727 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:15,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:15,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:15,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:15,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:15,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:15,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:27:15,730 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:27:15,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:27:15,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:15,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:15,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:15,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:15,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:15,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:15,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:15,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:15,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:15,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:15,734 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:27:15,734 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:27:15,734 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:15,735 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:15,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:15,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:27:15,736 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_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2022-11-20 09:27:16,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:16,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:16,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:16,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:16,183 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:16,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-11-20 09:27:19,482 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:20,226 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:20,227 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-11-20 09:27:20,293 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data/e7b0e39a9/31669b7daee54189b98cd8f7440787be/FLAG8e8adc849 [2022-11-20 09:27:20,317 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/data/e7b0e39a9/31669b7daee54189b98cd8f7440787be [2022-11-20 09:27:20,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:20,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:20,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:20,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:20,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:20,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:20" (1/1) ... [2022-11-20 09:27:20,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b10dfe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:20, skipping insertion in model container [2022-11-20 09:27:20,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:20" (1/1) ... [2022-11-20 09:27:20,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:20,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:23,067 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2022-11-20 09:27:23,071 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2022-11-20 09:27:23,072 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2022-11-20 09:27:23,073 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2022-11-20 09:27:23,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:23,160 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:27:23,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:23,602 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2022-11-20 09:27:23,603 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2022-11-20 09:27:23,604 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2022-11-20 09:27:23,604 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2022-11-20 09:27:23,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:23,640 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:24,089 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2022-11-20 09:27:24,090 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2022-11-20 09:27:24,090 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2022-11-20 09:27:24,091 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_7dd02784-d9f6-476c-a65e-42807d2059ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2022-11-20 09:27:24,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:24,478 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:24,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24 WrapperNode [2022-11-20 09:27:24,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:24,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:24,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:24,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:24,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:24,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:24,799 INFO L138 Inliner]: procedures = 406, calls = 2978, calls flagged for inlining = 179, calls inlined = 164, statements flattened = 5999 [2022-11-20 09:27:24,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:24,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:24,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:24,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:24,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:24,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:24,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:24,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:24,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:24,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:25,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:25,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:25,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:25,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:25,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:25,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:25,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (1/1) ... [2022-11-20 09:27:25,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:25,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:25,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:25,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:27:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:27:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-11-20 09:27:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-11-20 09:27:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2022-11-20 09:27:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2022-11-20 09:27:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:27:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:27:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2022-11-20 09:27:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2022-11-20 09:27:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_getregslen [2022-11-20 09:27:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_getregslen [2022-11-20 09:27:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2022-11-20 09:27:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2022-11-20 09:27:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:27:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:27:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 09:27:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 09:27:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2022-11-20 09:27:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2022-11-20 09:27:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-11-20 09:27:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-11-20 09:27:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-11-20 09:27:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-11-20 09:27:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:27:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:27:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2022-11-20 09:27:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 09:27:25,186 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 09:27:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:27:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:27:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 09:27:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:27:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:27:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:27:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2022-11-20 09:27:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2022-11-20 09:27:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2022-11-20 09:27:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2022-11-20 09:27:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2022-11-20 09:27:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2022-11-20 09:27:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-20 09:27:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-20 09:27:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:27:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:27:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-20 09:27:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-20 09:27:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-20 09:27:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-20 09:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2022-11-20 09:27:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2022-11-20 09:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:27:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_get_eeprom_len [2022-11-20 09:27:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_get_eeprom_len [2022-11-20 09:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2022-11-20 09:27:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-20 09:27:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-20 09:27:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2022-11-20 09:27:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:27:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:27:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:27:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:27:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 09:27:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 09:27:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:27:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:27:25,195 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 09:27:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 09:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2022-11-20 09:27:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2022-11-20 09:27:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:27:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-20 09:27:25,197 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-20 09:27:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2022-11-20 09:27:25,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2022-11-20 09:27:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2022-11-20 09:27:25,197 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2022-11-20 09:27:25,197 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 09:27:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 09:27:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2022-11-20 09:27:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2022-11-20 09:27:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:27:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2022-11-20 09:27:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2022-11-20 09:27:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:27:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-20 09:27:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-20 09:27:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 09:27:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 09:27:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:27:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:27:25,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:27:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:27:25,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:27:25,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:27:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:27:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-20 09:27:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-20 09:27:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:27:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:27:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2022-11-20 09:27:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2022-11-20 09:27:25,207 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-20 09:27:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-20 09:27:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-11-20 09:27:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-11-20 09:27:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2022-11-20 09:27:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2022-11-20 09:27:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 09:27:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 09:27:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:27:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:27:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2022-11-20 09:27:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2022-11-20 09:27:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 09:27:25,268 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 09:27:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:27:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2022-11-20 09:27:25,268 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2022-11-20 09:27:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2022-11-20 09:27:25,268 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2022-11-20 09:27:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:27:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:27:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:27:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2022-11-20 09:27:25,269 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2022-11-20 09:27:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:27:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2022-11-20 09:27:25,269 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2022-11-20 09:27:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:27:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2022-11-20 09:27:25,269 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2022-11-20 09:27:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 09:27:25,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 09:27:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 09:27:25,270 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 09:27:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 09:27:25,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 09:27:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:27:25,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:27:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 09:27:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 09:27:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2022-11-20 09:27:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2022-11-20 09:27:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2022-11-20 09:27:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2022-11-20 09:27:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-20 09:27:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-20 09:27:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-11-20 09:27:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-11-20 09:27:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2022-11-20 09:27:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2022-11-20 09:27:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:27:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:27:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:27:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:27:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2022-11-20 09:27:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2022-11-20 09:27:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2022-11-20 09:27:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-20 09:27:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:27:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2022-11-20 09:27:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~C_INT [2022-11-20 09:27:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~C_INT [2022-11-20 09:27:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2022-11-20 09:27:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2022-11-20 09:27:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2022-11-20 09:27:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2022-11-20 09:27:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:27:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:27:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:27:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:27:26,277 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:26,280 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:26,556 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:28:33,498 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:28:33,593 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:33,624 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:33,624 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:28:33,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:33 BoogieIcfgContainer [2022-11-20 09:28:33,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:33,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:33,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:33,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:33,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:20" (1/3) ... [2022-11-20 09:28:33,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7052b3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:33, skipping insertion in model container [2022-11-20 09:28:33,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:24" (2/3) ... [2022-11-20 09:28:33,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7052b3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:33, skipping insertion in model container [2022-11-20 09:28:33,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:33" (3/3) ... [2022-11-20 09:28:33,641 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-11-20 09:28:33,661 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:33,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 09:28:33,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:33,763 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f1f3319, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:33,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 09:28:33,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 1690 states, 1225 states have (on average 1.3453061224489795) internal successors, (1648), 1231 states have internal predecessors, (1648), 386 states have call successors, (386), 77 states have call predecessors, (386), 76 states have return successors, (379), 379 states have call predecessors, (379), 379 states have call successors, (379) [2022-11-20 09:28:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-20 09:28:33,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:33,802 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:33,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:28:33,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash -423010914, now seen corresponding path program 1 times [2022-11-20 09:28:33,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:33,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671865955] [2022-11-20 09:28:33,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:33,829 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 09:28:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:33,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:33,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:28:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:35,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:35,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-11-20 09:28:35,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:35,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:35,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671865955] [2022-11-20 09:28:35,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671865955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:35,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:35,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256343909] [2022-11-20 09:28:35,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:35,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:35,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:36,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:36,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:36,042 INFO L87 Difference]: Start difference. First operand has 1690 states, 1225 states have (on average 1.3453061224489795) internal successors, (1648), 1231 states have internal predecessors, (1648), 386 states have call successors, (386), 77 states have call predecessors, (386), 76 states have return successors, (379), 379 states have call predecessors, (379), 379 states have call successors, (379) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:28:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:36,967 INFO L93 Difference]: Finished difference Result 4882 states and 7297 transitions. [2022-11-20 09:28:36,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:36,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 228 [2022-11-20 09:28:36,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:37,014 INFO L225 Difference]: With dead ends: 4882 [2022-11-20 09:28:37,015 INFO L226 Difference]: Without dead ends: 3222 [2022-11-20 09:28:37,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 226 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 09:28:37,038 INFO L413 NwaCegarLoop]: 2734 mSDtfsCounter, 2224 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 5070 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:37,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2224 Valid, 5070 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:28:37,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2022-11-20 09:28:37,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3218. [2022-11-20 09:28:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 2361 states have (on average 1.3392630241423127) internal successors, (3162), 2372 states have internal predecessors, (3162), 706 states have call successors, (706), 149 states have call predecessors, (706), 148 states have return successors, (702), 702 states have call predecessors, (702), 702 states have call successors, (702) [2022-11-20 09:28:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 4570 transitions. [2022-11-20 09:28:37,354 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 4570 transitions. Word has length 228 [2022-11-20 09:28:37,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:37,358 INFO L495 AbstractCegarLoop]: Abstraction has 3218 states and 4570 transitions. [2022-11-20 09:28:37,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:28:37,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 4570 transitions. [2022-11-20 09:28:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-20 09:28:37,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:37,369 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:37,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:37,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:37,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:28:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:37,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1755622173, now seen corresponding path program 1 times [2022-11-20 09:28:37,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:37,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177883400] [2022-11-20 09:28:37,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:37,573 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 09:28:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:37,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:37,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:28:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 2051 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:39,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-11-20 09:28:39,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:39,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:39,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177883400] [2022-11-20 09:28:39,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177883400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:39,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:39,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:39,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828336953] [2022-11-20 09:28:39,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:39,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:39,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:39,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:39,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:39,492 INFO L87 Difference]: Start difference. First operand 3218 states and 4570 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:28:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:40,608 INFO L93 Difference]: Finished difference Result 7579 states and 10763 transitions. [2022-11-20 09:28:40,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:40,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 243 [2022-11-20 09:28:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:40,639 INFO L225 Difference]: With dead ends: 7579 [2022-11-20 09:28:40,640 INFO L226 Difference]: Without dead ends: 4402 [2022-11-20 09:28:40,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 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 09:28:40,662 INFO L413 NwaCegarLoop]: 2810 mSDtfsCounter, 1976 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 5099 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:40,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1976 Valid, 5099 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 09:28:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2022-11-20 09:28:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 4375. [2022-11-20 09:28:40,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4375 states, 3166 states have (on average 1.339545167403664) internal successors, (4241), 3185 states have internal predecessors, (4241), 985 states have call successors, (985), 222 states have call predecessors, (985), 221 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-11-20 09:28:40,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 6207 transitions. [2022-11-20 09:28:40,922 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 6207 transitions. Word has length 243 [2022-11-20 09:28:40,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:40,924 INFO L495 AbstractCegarLoop]: Abstraction has 4375 states and 6207 transitions. [2022-11-20 09:28:40,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:28:40,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 6207 transitions. [2022-11-20 09:28:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-20 09:28:40,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:40,934 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 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] [2022-11-20 09:28:40,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:41,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:41,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:28:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash 482354409, now seen corresponding path program 1 times [2022-11-20 09:28:41,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:41,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026435855] [2022-11-20 09:28:41,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:41,151 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 09:28:41,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:41,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:41,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:28:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:42,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:42,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-11-20 09:28:43,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:43,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:43,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026435855] [2022-11-20 09:28:43,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026435855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:43,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:43,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:43,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311073066] [2022-11-20 09:28:43,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:43,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:43,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:43,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:43,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:43,188 INFO L87 Difference]: Start difference. First operand 4375 states and 6207 transitions. 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, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:28:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:43,917 INFO L93 Difference]: Finished difference Result 10268 states and 14572 transitions. [2022-11-20 09:28:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:43,918 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, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 287 [2022-11-20 09:28:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:43,977 INFO L225 Difference]: With dead ends: 10268 [2022-11-20 09:28:43,978 INFO L226 Difference]: Without dead ends: 7239 [2022-11-20 09:28:43,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 285 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 09:28:43,999 INFO L413 NwaCegarLoop]: 4562 mSDtfsCounter, 2185 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:44,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 6906 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:28:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7239 states. [2022-11-20 09:28:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7239 to 7235. [2022-11-20 09:28:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7235 states, 5262 states have (on average 1.3415051311288484) internal successors, (7059), 5287 states have internal predecessors, (7059), 1605 states have call successors, (1605), 366 states have call predecessors, (1605), 365 states have return successors, (1601), 1596 states have call predecessors, (1601), 1601 states have call successors, (1601) [2022-11-20 09:28:44,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7235 states to 7235 states and 10265 transitions. [2022-11-20 09:28:44,577 INFO L78 Accepts]: Start accepts. Automaton has 7235 states and 10265 transitions. Word has length 287 [2022-11-20 09:28:44,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:44,578 INFO L495 AbstractCegarLoop]: Abstraction has 7235 states and 10265 transitions. [2022-11-20 09:28:44,579 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, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:28:44,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7235 states and 10265 transitions. [2022-11-20 09:28:44,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-20 09:28:44,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:44,591 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 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] [2022-11-20 09:28:44,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:44,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:44,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:28:44,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:44,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1889384853, now seen corresponding path program 1 times [2022-11-20 09:28:44,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:44,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747334654] [2022-11-20 09:28:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:44,810 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 09:28:44,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:44,811 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:44,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:28:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:46,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:46,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-11-20 09:28:49,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:49,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:49,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747334654] [2022-11-20 09:28:49,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747334654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:49,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:49,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:28:49,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155484188] [2022-11-20 09:28:49,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:49,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:28:49,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:49,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:28:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:28:49,658 INFO L87 Difference]: Start difference. First operand 7235 states and 10265 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 09:28:50,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:50,353 INFO L93 Difference]: Finished difference Result 7241 states and 10270 transitions. [2022-11-20 09:28:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:28:50,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 287 [2022-11-20 09:28:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:50,396 INFO L225 Difference]: With dead ends: 7241 [2022-11-20 09:28:50,396 INFO L226 Difference]: Without dead ends: 7239 [2022-11-20 09:28:50,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:28:50,406 INFO L413 NwaCegarLoop]: 2374 mSDtfsCounter, 2266 mSDsluCounter, 4736 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 7110 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:50,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 7110 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:28:50,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7239 states. [2022-11-20 09:28:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7239 to 7239. [2022-11-20 09:28:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7239 states, 5265 states have (on average 1.3413105413105413) internal successors, (7062), 5290 states have internal predecessors, (7062), 1605 states have call successors, (1605), 367 states have call predecessors, (1605), 366 states have return successors, (1601), 1596 states have call predecessors, (1601), 1601 states have call successors, (1601) [2022-11-20 09:28:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7239 states to 7239 states and 10268 transitions. [2022-11-20 09:28:50,935 INFO L78 Accepts]: Start accepts. Automaton has 7239 states and 10268 transitions. Word has length 287 [2022-11-20 09:28:50,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:50,940 INFO L495 AbstractCegarLoop]: Abstraction has 7239 states and 10268 transitions. [2022-11-20 09:28:50,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 09:28:50,940 INFO L276 IsEmpty]: Start isEmpty. Operand 7239 states and 10268 transitions. [2022-11-20 09:28:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-20 09:28:50,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:50,950 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 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] [2022-11-20 09:28:50,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:51,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:51,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:28:51,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1472314017, now seen corresponding path program 1 times [2022-11-20 09:28:51,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:51,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470721815] [2022-11-20 09:28:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:51,171 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 09:28:51,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:51,173 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:51,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:28:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:52,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:52,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-11-20 09:28:56,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:28:57,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-11-20 09:28:57,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:57,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470721815] [2022-11-20 09:28:57,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470721815] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:28:57,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:28:57,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:28:57,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805479597] [2022-11-20 09:28:57,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:57,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:28:57,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:57,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:28:57,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:28:57,550 INFO L87 Difference]: Start difference. First operand 7239 states and 10268 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 09:28:58,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:58,434 INFO L93 Difference]: Finished difference Result 7245 states and 10273 transitions. [2022-11-20 09:28:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:58,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 292 [2022-11-20 09:28:58,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:58,496 INFO L225 Difference]: With dead ends: 7245 [2022-11-20 09:28:58,496 INFO L226 Difference]: Without dead ends: 7243 [2022-11-20 09:28:58,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 577 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 09:28:58,500 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2293 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:58,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 7112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:28:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-11-20 09:28:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 7243. [2022-11-20 09:28:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7243 states, 5268 states have (on average 1.3411161731207288) internal successors, (7065), 5293 states have internal predecessors, (7065), 1605 states have call successors, (1605), 368 states have call predecessors, (1605), 367 states have return successors, (1601), 1596 states have call predecessors, (1601), 1601 states have call successors, (1601) [2022-11-20 09:28:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7243 states to 7243 states and 10271 transitions. [2022-11-20 09:28:59,069 INFO L78 Accepts]: Start accepts. Automaton has 7243 states and 10271 transitions. Word has length 292 [2022-11-20 09:28:59,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:59,070 INFO L495 AbstractCegarLoop]: Abstraction has 7243 states and 10271 transitions. [2022-11-20 09:28:59,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 09:28:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7243 states and 10271 transitions. [2022-11-20 09:28:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-20 09:28:59,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:59,082 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 5, 5, 5, 3, 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] [2022-11-20 09:28:59,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:59,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:28:59,296 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:28:59,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:59,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1602991099, now seen corresponding path program 1 times [2022-11-20 09:28:59,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:59,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112667731] [2022-11-20 09:28:59,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:59,298 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 09:28:59,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:59,299 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:28:59,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:29:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:00,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 2119 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:00,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:01,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-11-20 09:29:01,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:01,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:01,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112667731] [2022-11-20 09:29:01,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112667731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:01,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:01,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:01,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845924873] [2022-11-20 09:29:01,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:01,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:01,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:01,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:01,025 INFO L87 Difference]: Start difference. First operand 7243 states and 10271 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 09:29:02,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:02,006 INFO L93 Difference]: Finished difference Result 16032 states and 22738 transitions. [2022-11-20 09:29:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:02,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 306 [2022-11-20 09:29:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:02,057 INFO L225 Difference]: With dead ends: 16032 [2022-11-20 09:29:02,057 INFO L226 Difference]: Without dead ends: 10135 [2022-11-20 09:29:02,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 304 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 09:29:02,087 INFO L413 NwaCegarLoop]: 4574 mSDtfsCounter, 2218 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 6920 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:02,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 6920 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:29:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2022-11-20 09:29:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 10105. [2022-11-20 09:29:02,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10105 states, 7366 states have (on average 1.3419766494705403) internal successors, (9885), 7397 states have internal predecessors, (9885), 2225 states have call successors, (2225), 512 states have call predecessors, (2225), 511 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-11-20 09:29:02,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10105 states to 10105 states and 14331 transitions. [2022-11-20 09:29:02,927 INFO L78 Accepts]: Start accepts. Automaton has 10105 states and 14331 transitions. Word has length 306 [2022-11-20 09:29:02,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:02,928 INFO L495 AbstractCegarLoop]: Abstraction has 10105 states and 14331 transitions. [2022-11-20 09:29:02,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-20 09:29:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 10105 states and 14331 transitions. [2022-11-20 09:29:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-20 09:29:02,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:02,937 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 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] [2022-11-20 09:29:02,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:03,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:03,159 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:29:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash -273901909, now seen corresponding path program 1 times [2022-11-20 09:29:03,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:03,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818037350] [2022-11-20 09:29:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:03,162 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 09:29:03,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:03,164 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:03,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:29:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:04,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:29:04,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-11-20 09:29:08,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-11-20 09:29:09,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:09,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818037350] [2022-11-20 09:29:09,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818037350] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:09,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:09,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:29:09,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16966178] [2022-11-20 09:29:09,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:09,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:09,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:09,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:29:09,553 INFO L87 Difference]: Start difference. First operand 10105 states and 14331 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 09:29:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:10,437 INFO L93 Difference]: Finished difference Result 10111 states and 14336 transitions. [2022-11-20 09:29:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:10,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 297 [2022-11-20 09:29:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:10,481 INFO L225 Difference]: With dead ends: 10111 [2022-11-20 09:29:10,481 INFO L226 Difference]: Without dead ends: 10109 [2022-11-20 09:29:10,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 587 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 09:29:10,488 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2293 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:10,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 7112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2022-11-20 09:29:11,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 10109. [2022-11-20 09:29:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 7369 states have (on average 1.3418374270593025) internal successors, (9888), 7400 states have internal predecessors, (9888), 2225 states have call successors, (2225), 513 states have call predecessors, (2225), 512 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-11-20 09:29:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 14334 transitions. [2022-11-20 09:29:11,420 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 14334 transitions. Word has length 297 [2022-11-20 09:29:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:11,421 INFO L495 AbstractCegarLoop]: Abstraction has 10109 states and 14334 transitions. [2022-11-20 09:29:11,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 09:29:11,421 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 14334 transitions. [2022-11-20 09:29:11,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-20 09:29:11,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:11,430 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 09:29:11,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:11,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:11,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:29:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash -682210145, now seen corresponding path program 1 times [2022-11-20 09:29:11,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:11,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647323603] [2022-11-20 09:29:11,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:11,646 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 09:29:11,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:11,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:11,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 09:29:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:13,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2084 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:29:13,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2022-11-20 09:29:16,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2022-11-20 09:29:17,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:17,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647323603] [2022-11-20 09:29:17,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647323603] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:17,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:17,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:29:17,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362470491] [2022-11-20 09:29:17,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:17,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:17,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:17,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:17,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:29:17,610 INFO L87 Difference]: Start difference. First operand 10109 states and 14334 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 09:29:18,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:18,707 INFO L93 Difference]: Finished difference Result 10115 states and 14339 transitions. [2022-11-20 09:29:18,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:18,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 302 [2022-11-20 09:29:18,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:18,749 INFO L225 Difference]: With dead ends: 10115 [2022-11-20 09:29:18,750 INFO L226 Difference]: Without dead ends: 10113 [2022-11-20 09:29:18,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 597 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 09:29:18,756 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2293 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:18,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 7112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:18,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10113 states. [2022-11-20 09:29:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10113 to 10113. [2022-11-20 09:29:19,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10113 states, 7372 states have (on average 1.341698317959848) internal successors, (9891), 7403 states have internal predecessors, (9891), 2225 states have call successors, (2225), 514 states have call predecessors, (2225), 513 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-11-20 09:29:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10113 states to 10113 states and 14337 transitions. [2022-11-20 09:29:19,821 INFO L78 Accepts]: Start accepts. Automaton has 10113 states and 14337 transitions. Word has length 302 [2022-11-20 09:29:19,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:19,822 INFO L495 AbstractCegarLoop]: Abstraction has 10113 states and 14337 transitions. [2022-11-20 09:29:19,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 09:29:19,822 INFO L276 IsEmpty]: Start isEmpty. Operand 10113 states and 14337 transitions. [2022-11-20 09:29:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-20 09:29:19,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:19,833 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 5, 4, 4, 4, 4, 4, 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] [2022-11-20 09:29:19,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:20,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:20,055 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:29:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash -823048469, now seen corresponding path program 1 times [2022-11-20 09:29:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:20,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931357164] [2022-11-20 09:29:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:20,059 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 09:29:20,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:20,061 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:20,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 09:29:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:21,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:29:21,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-11-20 09:29:25,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-11-20 09:29:26,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:26,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931357164] [2022-11-20 09:29:26,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931357164] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:26,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:26,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:29:26,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965867953] [2022-11-20 09:29:26,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:26,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:26,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:26,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:29:26,680 INFO L87 Difference]: Start difference. First operand 10113 states and 14337 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 09:29:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:27,761 INFO L93 Difference]: Finished difference Result 10119 states and 14342 transitions. [2022-11-20 09:29:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 307 [2022-11-20 09:29:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:27,803 INFO L225 Difference]: With dead ends: 10119 [2022-11-20 09:29:27,804 INFO L226 Difference]: Without dead ends: 10117 [2022-11-20 09:29:27,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 607 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 09:29:27,811 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2293 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:27,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2300 Valid, 7112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:27,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10117 states. [2022-11-20 09:29:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10117 to 10117. [2022-11-20 09:29:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10117 states, 7375 states have (on average 1.3415593220338984) internal successors, (9894), 7406 states have internal predecessors, (9894), 2225 states have call successors, (2225), 515 states have call predecessors, (2225), 514 states have return successors, (2221), 2216 states have call predecessors, (2221), 2221 states have call successors, (2221) [2022-11-20 09:29:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10117 states to 10117 states and 14340 transitions. [2022-11-20 09:29:28,969 INFO L78 Accepts]: Start accepts. Automaton has 10117 states and 14340 transitions. Word has length 307 [2022-11-20 09:29:28,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:28,970 INFO L495 AbstractCegarLoop]: Abstraction has 10117 states and 14340 transitions. [2022-11-20 09:29:28,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 09:29:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 10117 states and 14340 transitions. [2022-11-20 09:29:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-11-20 09:29:28,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:28,982 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:29:29,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:29,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:29,196 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:29:29,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:29,197 INFO L85 PathProgramCache]: Analyzing trace with hash -756071995, now seen corresponding path program 1 times [2022-11-20 09:29:29,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:29,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889347747] [2022-11-20 09:29:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:29,201 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 09:29:29,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:29,207 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:29,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 09:29:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:31,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 3030 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:31,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:31,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-11-20 09:29:31,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:31,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:31,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889347747] [2022-11-20 09:29:31,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889347747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:31,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:31,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:31,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672045758] [2022-11-20 09:29:31,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:31,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:31,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:31,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:31,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:31,869 INFO L87 Difference]: Start difference. First operand 10117 states and 14340 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 09:29:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:34,096 INFO L93 Difference]: Finished difference Result 26927 states and 38197 transitions. [2022-11-20 09:29:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:34,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 435 [2022-11-20 09:29:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:34,181 INFO L225 Difference]: With dead ends: 26927 [2022-11-20 09:29:34,182 INFO L226 Difference]: Without dead ends: 16851 [2022-11-20 09:29:34,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 433 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 09:29:34,230 INFO L413 NwaCegarLoop]: 2746 mSDtfsCounter, 1928 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 5083 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:34,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 5083 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:29:34,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16851 states. [2022-11-20 09:29:35,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16851 to 16802. [2022-11-20 09:29:35,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16802 states, 12175 states have (on average 1.3416837782340862) internal successors, (16335), 12222 states have internal predecessors, (16335), 3749 states have call successors, (3749), 876 states have call predecessors, (3749), 875 states have return successors, (3745), 3728 states have call predecessors, (3745), 3745 states have call successors, (3745) [2022-11-20 09:29:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16802 states to 16802 states and 23829 transitions. [2022-11-20 09:29:35,880 INFO L78 Accepts]: Start accepts. Automaton has 16802 states and 23829 transitions. Word has length 435 [2022-11-20 09:29:35,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:35,881 INFO L495 AbstractCegarLoop]: Abstraction has 16802 states and 23829 transitions. [2022-11-20 09:29:35,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 09:29:35,881 INFO L276 IsEmpty]: Start isEmpty. Operand 16802 states and 23829 transitions. [2022-11-20 09:29:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 09:29:35,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:35,890 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 4, 4, 4, 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] [2022-11-20 09:29:36,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:36,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:36,211 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:29:36,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:36,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1527778337, now seen corresponding path program 1 times [2022-11-20 09:29:36,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:36,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384398169] [2022-11-20 09:29:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:36,213 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 09:29:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:36,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:36,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 09:29:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:37,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 2098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:29:37,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1687 trivial. 0 not checked. [2022-11-20 09:29:41,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1687 trivial. 0 not checked. [2022-11-20 09:29:42,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:42,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384398169] [2022-11-20 09:29:42,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384398169] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:42,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:42,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:29:42,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9891329] [2022-11-20 09:29:42,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:42,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:42,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:42,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:29:42,432 INFO L87 Difference]: Start difference. First operand 16802 states and 23829 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 09:29:44,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:44,556 INFO L93 Difference]: Finished difference Result 16808 states and 23834 transitions. [2022-11-20 09:29:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:44,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 312 [2022-11-20 09:29:44,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:44,622 INFO L225 Difference]: With dead ends: 16808 [2022-11-20 09:29:44,622 INFO L226 Difference]: Without dead ends: 16806 [2022-11-20 09:29:44,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 617 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 09:29:44,630 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2293 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2299 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:44,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2299 Valid, 7112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:44,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16806 states. [2022-11-20 09:29:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16806 to 16806. [2022-11-20 09:29:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16806 states, 12178 states have (on average 1.3415996058466086) internal successors, (16338), 12225 states have internal predecessors, (16338), 3749 states have call successors, (3749), 877 states have call predecessors, (3749), 876 states have return successors, (3745), 3728 states have call predecessors, (3745), 3745 states have call successors, (3745) [2022-11-20 09:29:46,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16806 states to 16806 states and 23832 transitions. [2022-11-20 09:29:46,354 INFO L78 Accepts]: Start accepts. Automaton has 16806 states and 23832 transitions. Word has length 312 [2022-11-20 09:29:46,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:46,355 INFO L495 AbstractCegarLoop]: Abstraction has 16806 states and 23832 transitions. [2022-11-20 09:29:46,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 09:29:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 16806 states and 23832 transitions. [2022-11-20 09:29:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-11-20 09:29:46,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:46,366 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:29:46,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:46,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:46,592 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:29:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash 396623107, now seen corresponding path program 1 times [2022-11-20 09:29:46,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:46,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810465456] [2022-11-20 09:29:46,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:46,594 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 09:29:46,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:46,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:46,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 09:29:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:49,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 3057 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:49,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:49,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1623 trivial. 0 not checked. [2022-11-20 09:29:49,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:49,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:49,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810465456] [2022-11-20 09:29:49,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810465456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:49,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:49,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:49,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830717259] [2022-11-20 09:29:49,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:49,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:49,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:49,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:49,389 INFO L87 Difference]: Start difference. First operand 16806 states and 23832 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 09:29:52,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:52,418 INFO L93 Difference]: Finished difference Result 41672 states and 58889 transitions. [2022-11-20 09:29:52,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:52,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 441 [2022-11-20 09:29:52,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:52,532 INFO L225 Difference]: With dead ends: 41672 [2022-11-20 09:29:52,533 INFO L226 Difference]: Without dead ends: 24907 [2022-11-20 09:29:52,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 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 09:29:52,589 INFO L413 NwaCegarLoop]: 3131 mSDtfsCounter, 1690 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 5467 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:52,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 5467 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:29:52,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24907 states. [2022-11-20 09:29:55,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24907 to 24832. [2022-11-20 09:29:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24832 states, 18248 states have (on average 1.3343928101709777) internal successors, (24350), 18353 states have internal predecessors, (24350), 5275 states have call successors, (5275), 1307 states have call predecessors, (5275), 1306 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-11-20 09:29:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24832 states to 24832 states and 34896 transitions. [2022-11-20 09:29:55,778 INFO L78 Accepts]: Start accepts. Automaton has 24832 states and 34896 transitions. Word has length 441 [2022-11-20 09:29:55,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:55,779 INFO L495 AbstractCegarLoop]: Abstraction has 24832 states and 34896 transitions. [2022-11-20 09:29:55,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 09:29:55,780 INFO L276 IsEmpty]: Start isEmpty. Operand 24832 states and 34896 transitions. [2022-11-20 09:29:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-20 09:29:55,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:55,789 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 7, 6, 6, 4, 4, 4, 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] [2022-11-20 09:29:55,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-20 09:29:56,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:56,003 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:29:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash -4696277, now seen corresponding path program 1 times [2022-11-20 09:29:56,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:56,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363639315] [2022-11-20 09:29:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:56,007 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 09:29:56,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:56,008 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:56,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 09:29:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:58,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 2105 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:29:58,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:01,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2022-11-20 09:30:01,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1719 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2022-11-20 09:30:02,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:02,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363639315] [2022-11-20 09:30:02,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363639315] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:02,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:02,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:02,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925564495] [2022-11-20 09:30:02,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:02,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:02,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:02,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:02,745 INFO L87 Difference]: Start difference. First operand 24832 states and 34896 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 09:30:05,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:05,769 INFO L93 Difference]: Finished difference Result 24838 states and 34901 transitions. [2022-11-20 09:30:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:05,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 317 [2022-11-20 09:30:05,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:05,876 INFO L225 Difference]: With dead ends: 24838 [2022-11-20 09:30:05,876 INFO L226 Difference]: Without dead ends: 24836 [2022-11-20 09:30:05,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 627 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 09:30:05,888 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2293 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:05,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 7112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24836 states. [2022-11-20 09:30:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24836 to 24836. [2022-11-20 09:30:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24836 states, 18251 states have (on average 1.3343378445016711) internal successors, (24353), 18356 states have internal predecessors, (24353), 5275 states have call successors, (5275), 1308 states have call predecessors, (5275), 1307 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-11-20 09:30:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24836 states to 24836 states and 34899 transitions. [2022-11-20 09:30:09,065 INFO L78 Accepts]: Start accepts. Automaton has 24836 states and 34899 transitions. Word has length 317 [2022-11-20 09:30:09,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:09,066 INFO L495 AbstractCegarLoop]: Abstraction has 24836 states and 34899 transitions. [2022-11-20 09:30:09,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 09:30:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 24836 states and 34899 transitions. [2022-11-20 09:30:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-20 09:30:09,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:09,075 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 8, 7, 7, 4, 4, 4, 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] [2022-11-20 09:30:09,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-11-20 09:30:09,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:09,292 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1820116193, now seen corresponding path program 1 times [2022-11-20 09:30:09,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:09,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583760778] [2022-11-20 09:30:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:09,296 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 09:30:09,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:09,298 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:09,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 09:30:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:11,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 2112 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:11,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2022-11-20 09:30:14,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:16,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1731 trivial. 0 not checked. [2022-11-20 09:30:16,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:16,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583760778] [2022-11-20 09:30:16,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583760778] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:16,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:16,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093866601] [2022-11-20 09:30:16,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:16,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:16,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:16,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:16,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:16,134 INFO L87 Difference]: Start difference. First operand 24836 states and 34899 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-20 09:30:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:19,198 INFO L93 Difference]: Finished difference Result 24996 states and 35014 transitions. [2022-11-20 09:30:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:19,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 322 [2022-11-20 09:30:19,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:19,263 INFO L225 Difference]: With dead ends: 24996 [2022-11-20 09:30:19,263 INFO L226 Difference]: Without dead ends: 24994 [2022-11-20 09:30:19,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 637 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 09:30:19,270 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2210 mSDsluCounter, 4821 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 7198 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:19,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 7198 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:19,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24994 states. [2022-11-20 09:30:21,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24994 to 24994. [2022-11-20 09:30:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24994 states, 18364 states have (on average 1.3322805489000218) internal successors, (24466), 18469 states have internal predecessors, (24466), 5275 states have call successors, (5275), 1353 states have call predecessors, (5275), 1352 states have return successors, (5271), 5208 states have call predecessors, (5271), 5271 states have call successors, (5271) [2022-11-20 09:30:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24994 states to 24994 states and 35012 transitions. [2022-11-20 09:30:21,912 INFO L78 Accepts]: Start accepts. Automaton has 24994 states and 35012 transitions. Word has length 322 [2022-11-20 09:30:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:21,913 INFO L495 AbstractCegarLoop]: Abstraction has 24994 states and 35012 transitions. [2022-11-20 09:30:21,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-20 09:30:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 24994 states and 35012 transitions. [2022-11-20 09:30:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-20 09:30:21,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:21,920 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 9, 8, 8, 4, 4, 4, 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] [2022-11-20 09:30:21,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:22,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:22,144 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:22,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:22,144 INFO L85 PathProgramCache]: Analyzing trace with hash -896940181, now seen corresponding path program 1 times [2022-11-20 09:30:22,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:22,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855216772] [2022-11-20 09:30:22,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:22,146 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 09:30:22,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:22,147 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:22,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dd02784-d9f6-476c-a65e-42807d2059ec/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 09:30:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:23,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:23,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2022-11-20 09:30:27,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2022-11-20 09:30:28,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:28,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855216772] [2022-11-20 09:30:28,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855216772] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:28,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:28,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:28,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841016400] [2022-11-20 09:30:28,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:28,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:28,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:28,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:28,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:28,736 INFO L87 Difference]: Start difference. First operand 24994 states and 35012 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-20 09:30:31,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:31,448 INFO L93 Difference]: Finished difference Result 25000 states and 35017 transitions. [2022-11-20 09:30:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:31,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 327 [2022-11-20 09:30:31,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:31,530 INFO L225 Difference]: With dead ends: 25000 [2022-11-20 09:30:31,530 INFO L226 Difference]: Without dead ends: 24998 [2022-11-20 09:30:31,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 647 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 09:30:31,537 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 2293 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:31,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 7112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:30:31,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24998 states.