./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 09:54:17,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 09:54:17,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 09:54:17,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 09:54:17,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 09:54:17,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 09:54:17,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 09:54:17,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 09:54:17,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 09:54:17,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 09:54:17,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 09:54:17,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 09:54:17,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 09:54:17,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 09:54:17,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 09:54:17,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 09:54:17,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 09:54:17,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 09:54:17,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 09:54:17,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 09:54:17,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 09:54:17,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 09:54:17,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 09:54:17,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 09:54:17,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 09:54:17,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 09:54:17,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 09:54:17,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 09:54:17,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 09:54:17,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 09:54:17,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 09:54:17,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 09:54:17,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 09:54:17,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 09:54:17,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 09:54:17,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 09:54:17,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 09:54:17,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 09:54:17,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 09:54:17,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 09:54:17,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 09:54:17,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 09:54:17,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 09:54:17,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 09:54:17,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 09:54:17,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 09:54:17,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 09:54:17,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 09:54:17,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 09:54:17,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 09:54:17,785 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 09:54:17,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 09:54:17,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 09:54:17,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 09:54:17,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 09:54:17,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 09:54:17,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 09:54:17,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 09:54:17,786 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 09:54:17,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 09:54:17,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 09:54:17,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 09:54:17,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 09:54:17,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 09:54:17,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 09:54:17,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 09:54:17,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 09:54:17,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 09:54:17,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 09:54:17,788 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 09:54:17,788 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 09:54:17,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 09:54:17,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 09:54:17,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-11-17 09:54:18,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 09:54:18,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 09:54:18,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 09:54:18,032 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 09:54:18,032 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 09:54:18,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-17 09:54:18,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c81fb2f/738d609b056e4abbbc88dbf0b2a0270f/FLAG6501f477c [2021-11-17 09:54:18,767 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 09:54:18,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-17 09:54:18,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c81fb2f/738d609b056e4abbbc88dbf0b2a0270f/FLAG6501f477c [2021-11-17 09:54:18,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c81fb2f/738d609b056e4abbbc88dbf0b2a0270f [2021-11-17 09:54:18,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 09:54:18,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 09:54:18,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 09:54:18,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 09:54:18,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 09:54:18,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 09:54:18" (1/1) ... [2021-11-17 09:54:18,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fddd5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:18, skipping insertion in model container [2021-11-17 09:54:18,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 09:54:18" (1/1) ... [2021-11-17 09:54:18,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 09:54:19,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 09:54:20,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-17 09:54:20,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-17 09:54:20,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-17 09:54:20,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-17 09:54:20,633 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 09:54:20,668 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 09:54:20,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-17 09:54:20,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-17 09:54:20,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-17 09:54:20,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-17 09:54:20,952 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 09:54:21,105 INFO L208 MainTranslator]: Completed translation [2021-11-17 09:54:21,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21 WrapperNode [2021-11-17 09:54:21,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 09:54:21,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 09:54:21,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 09:54:21,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 09:54:21,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,321 INFO L137 Inliner]: procedures = 412, calls = 1642, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4071 [2021-11-17 09:54:21,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 09:54:21,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 09:54:21,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 09:54:21,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 09:54:21,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 09:54:21,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 09:54:21,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 09:54:21,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 09:54:21,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (1/1) ... [2021-11-17 09:54:21,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 09:54:21,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 09:54:21,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 09:54:21,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 09:54:21,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 09:54:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 09:54:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 09:54:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 09:54:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 09:54:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 09:54:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 09:54:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 09:54:21,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 09:54:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 09:54:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 09:54:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 09:54:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 09:54:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 09:54:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2021-11-17 09:54:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2021-11-17 09:54:21,597 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 09:54:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 09:54:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 09:54:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 09:54:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-17 09:54:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-17 09:54:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2021-11-17 09:54:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2021-11-17 09:54:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 09:54:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 09:54:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 09:54:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 09:54:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 09:54:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 09:54:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 09:54:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 09:54:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 09:54:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 09:54:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 09:54:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 09:54:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-17 09:54:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-17 09:54:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 09:54:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2021-11-17 09:54:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2021-11-17 09:54:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 09:54:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 09:54:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 09:54:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 09:54:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 09:54:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 09:54:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 09:54:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 09:54:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2021-11-17 09:54:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2021-11-17 09:54:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-11-17 09:54:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-11-17 09:54:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 09:54:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-17 09:54:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-17 09:54:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 09:54:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 09:54:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 09:54:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 09:54:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 09:54:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 09:54:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 09:54:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 09:54:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 09:54:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 09:54:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 09:54:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 09:54:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 09:54:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 09:54:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-11-17 09:54:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-11-17 09:54:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 09:54:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 09:54:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2021-11-17 09:54:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2021-11-17 09:54:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 09:54:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 09:54:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 09:54:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 09:54:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 09:54:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 09:54:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-17 09:54:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-17 09:54:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 09:54:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 09:54:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 09:54:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 09:54:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 09:54:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 09:54:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 09:54:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 09:54:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 09:54:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 09:54:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 09:54:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 09:54:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 09:54:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 09:54:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 09:54:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-17 09:54:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-17 09:54:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 09:54:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 09:54:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2021-11-17 09:54:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2021-11-17 09:54:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2021-11-17 09:54:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2021-11-17 09:54:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 09:54:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 09:54:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 09:54:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 09:54:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 09:54:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 09:54:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 09:54:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 09:54:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-17 09:54:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-17 09:54:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 09:54:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 09:54:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 09:54:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 09:54:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 09:54:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 09:54:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 09:54:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 09:54:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 09:54:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 09:54:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-17 09:54:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-17 09:54:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-17 09:54:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-17 09:54:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 09:54:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 09:54:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 09:54:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 09:54:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 09:54:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 09:54:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 09:54:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 09:54:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 09:54:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 09:54:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 09:54:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 09:54:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 09:54:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2021-11-17 09:54:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2021-11-17 09:54:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 09:54:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 09:54:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2021-11-17 09:54:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2021-11-17 09:54:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-17 09:54:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-17 09:54:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2021-11-17 09:54:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2021-11-17 09:54:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-17 09:54:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-17 09:54:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 09:54:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 09:54:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 09:54:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-17 09:54:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-17 09:54:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2021-11-17 09:54:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2021-11-17 09:54:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 09:54:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 09:54:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 09:54:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 09:54:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 09:54:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 09:54:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2021-11-17 09:54:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2021-11-17 09:54:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 09:54:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 09:54:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 09:54:22,169 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 09:54:22,172 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 09:54:22,454 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 09:54:23,948 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 09:54:24,085 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 09:54:24,097 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 09:54:24,097 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 09:54:24,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 09:54:24 BoogieIcfgContainer [2021-11-17 09:54:24,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 09:54:24,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 09:54:24,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 09:54:24,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 09:54:24,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 09:54:18" (1/3) ... [2021-11-17 09:54:24,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d65c46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 09:54:24, skipping insertion in model container [2021-11-17 09:54:24,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 09:54:21" (2/3) ... [2021-11-17 09:54:24,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d65c46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 09:54:24, skipping insertion in model container [2021-11-17 09:54:24,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 09:54:24" (3/3) ... [2021-11-17 09:54:24,107 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-17 09:54:24,112 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 09:54:24,112 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 09:54:24,161 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 09:54:24,166 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 09:54:24,166 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 09:54:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 1500 states, 1029 states have (on average 1.2896015549076774) internal successors, (1327), 1052 states have internal predecessors, (1327), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) [2021-11-17 09:54:24,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-17 09:54:24,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:24,227 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:54:24,228 INFO L402 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)] === [2021-11-17 09:54:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:24,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1591272428, now seen corresponding path program 1 times [2021-11-17 09:54:24,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:24,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719253104] [2021-11-17 09:54:24,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:24,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 09:54:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 09:54:24,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:24,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719253104] [2021-11-17 09:54:24,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719253104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:24,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:24,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:54:24,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60351542] [2021-11-17 09:54:24,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:24,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:54:24,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:24,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:54:24,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:54:24,855 INFO L87 Difference]: Start difference. First operand has 1500 states, 1029 states have (on average 1.2896015549076774) internal successors, (1327), 1052 states have internal predecessors, (1327), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 09:54:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:54:27,662 INFO L93 Difference]: Finished difference Result 4617 states and 6635 transitions. [2021-11-17 09:54:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:54:27,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2021-11-17 09:54:27,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:54:27,688 INFO L225 Difference]: With dead ends: 4617 [2021-11-17 09:54:27,689 INFO L226 Difference]: Without dead ends: 3130 [2021-11-17 09:54:27,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:54:27,701 INFO L933 BasicCegarLoop]: 2142 mSDtfsCounter, 2936 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 1319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3300 SdHoareTripleChecker+Valid, 4320 SdHoareTripleChecker+Invalid, 2801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1319 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-17 09:54:27,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3300 Valid, 4320 Invalid, 2801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1319 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-17 09:54:27,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2021-11-17 09:54:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2856. [2021-11-17 09:54:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 1975 states have (on average 1.2820253164556963) internal successors, (2532), 2020 states have internal predecessors, (2532), 726 states have call successors, (726), 153 states have call predecessors, (726), 152 states have return successors, (722), 710 states have call predecessors, (722), 722 states have call successors, (722) [2021-11-17 09:54:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 3980 transitions. [2021-11-17 09:54:27,966 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 3980 transitions. Word has length 127 [2021-11-17 09:54:27,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:54:27,968 INFO L470 AbstractCegarLoop]: Abstraction has 2856 states and 3980 transitions. [2021-11-17 09:54:27,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 09:54:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 3980 transitions. [2021-11-17 09:54:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-17 09:54:27,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:27,977 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:54:27,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 09:54:27,978 INFO L402 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)] === [2021-11-17 09:54:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash 768924421, now seen corresponding path program 1 times [2021-11-17 09:54:27,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:27,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900404317] [2021-11-17 09:54:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:27,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 09:54:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:54:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:28,308 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 09:54:28,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:28,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900404317] [2021-11-17 09:54:28,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900404317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:28,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:28,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:54:28,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796150627] [2021-11-17 09:54:28,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:28,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:54:28,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:28,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:54:28,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:54:28,311 INFO L87 Difference]: Start difference. First operand 2856 states and 3980 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 09:54:30,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:54:30,877 INFO L93 Difference]: Finished difference Result 8962 states and 12595 transitions. [2021-11-17 09:54:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:54:30,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2021-11-17 09:54:30,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:54:30,908 INFO L225 Difference]: With dead ends: 8962 [2021-11-17 09:54:30,908 INFO L226 Difference]: Without dead ends: 6129 [2021-11-17 09:54:30,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:54:30,960 INFO L933 BasicCegarLoop]: 2144 mSDtfsCounter, 2946 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 4372 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-17 09:54:30,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3305 Valid, 4372 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-17 09:54:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2021-11-17 09:54:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 5795. [2021-11-17 09:54:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 4042 states have (on average 1.2882236516575953) internal successors, (5207), 4146 states have internal predecessors, (5207), 1439 states have call successors, (1439), 304 states have call predecessors, (1439), 311 states have return successors, (1473), 1404 states have call predecessors, (1473), 1435 states have call successors, (1473) [2021-11-17 09:54:31,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8119 transitions. [2021-11-17 09:54:31,215 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8119 transitions. Word has length 131 [2021-11-17 09:54:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:54:31,216 INFO L470 AbstractCegarLoop]: Abstraction has 5795 states and 8119 transitions. [2021-11-17 09:54:31,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 09:54:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8119 transitions. [2021-11-17 09:54:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-17 09:54:31,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:31,219 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:54:31,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 09:54:31,221 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:54:31,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:31,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1281464054, now seen corresponding path program 1 times [2021-11-17 09:54:31,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:31,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941823819] [2021-11-17 09:54:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:31,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 09:54:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 09:54:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 09:54:31,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:31,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941823819] [2021-11-17 09:54:31,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941823819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:31,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:31,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:54:31,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914956401] [2021-11-17 09:54:31,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:31,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:54:31,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:31,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:54:31,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:54:31,467 INFO L87 Difference]: Start difference. First operand 5795 states and 8119 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 09:54:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:54:33,960 INFO L93 Difference]: Finished difference Result 17345 states and 24344 transitions. [2021-11-17 09:54:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:54:33,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2021-11-17 09:54:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:54:34,036 INFO L225 Difference]: With dead ends: 17345 [2021-11-17 09:54:34,037 INFO L226 Difference]: Without dead ends: 11573 [2021-11-17 09:54:34,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:54:34,070 INFO L933 BasicCegarLoop]: 2134 mSDtfsCounter, 2794 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 4369 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:54:34,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3126 Valid, 4369 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 09:54:34,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11573 states. [2021-11-17 09:54:34,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11573 to 10695. [2021-11-17 09:54:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10695 states, 7426 states have (on average 1.281308914624293) internal successors, (9515), 7622 states have internal predecessors, (9515), 2669 states have call successors, (2669), 598 states have call predecessors, (2669), 597 states have return successors, (2711), 2586 states have call predecessors, (2711), 2665 states have call successors, (2711) [2021-11-17 09:54:34,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10695 states to 10695 states and 14895 transitions. [2021-11-17 09:54:34,596 INFO L78 Accepts]: Start accepts. Automaton has 10695 states and 14895 transitions. Word has length 131 [2021-11-17 09:54:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:54:34,596 INFO L470 AbstractCegarLoop]: Abstraction has 10695 states and 14895 transitions. [2021-11-17 09:54:34,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-17 09:54:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 10695 states and 14895 transitions. [2021-11-17 09:54:34,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-17 09:54:34,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:34,601 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:54:34,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 09:54:34,601 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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)] === [2021-11-17 09:54:34,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:34,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1749869785, now seen corresponding path program 1 times [2021-11-17 09:54:34,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:34,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139932596] [2021-11-17 09:54:34,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:34,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 09:54:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 09:54:34,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:34,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139932596] [2021-11-17 09:54:34,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139932596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:34,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:34,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 09:54:34,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042559727] [2021-11-17 09:54:34,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:34,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 09:54:34,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 09:54:34,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 09:54:34,815 INFO L87 Difference]: Start difference. First operand 10695 states and 14895 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 09:54:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:54:39,453 INFO L93 Difference]: Finished difference Result 25813 states and 36036 transitions. [2021-11-17 09:54:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 09:54:39,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2021-11-17 09:54:39,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:54:39,519 INFO L225 Difference]: With dead ends: 25813 [2021-11-17 09:54:39,519 INFO L226 Difference]: Without dead ends: 15141 [2021-11-17 09:54:39,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 09:54:39,558 INFO L933 BasicCegarLoop]: 2341 mSDtfsCounter, 5662 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 4384 mSolverCounterSat, 2385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6213 SdHoareTripleChecker+Valid, 5983 SdHoareTripleChecker+Invalid, 6769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2385 IncrementalHoareTripleChecker+Valid, 4384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:54:39,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6213 Valid, 5983 Invalid, 6769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2385 Valid, 4384 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-17 09:54:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15141 states. [2021-11-17 09:54:39,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15141 to 13422. [2021-11-17 09:54:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 9503 states have (on average 1.2868567820688204) internal successors, (12229), 9736 states have internal predecessors, (12229), 3111 states have call successors, (3111), 820 states have call predecessors, (3111), 805 states have return successors, (3127), 2987 states have call predecessors, (3127), 3107 states have call successors, (3127) [2021-11-17 09:54:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 18467 transitions. [2021-11-17 09:54:40,085 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 18467 transitions. Word has length 137 [2021-11-17 09:54:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:54:40,086 INFO L470 AbstractCegarLoop]: Abstraction has 13422 states and 18467 transitions. [2021-11-17 09:54:40,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 09:54:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 18467 transitions. [2021-11-17 09:54:40,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-17 09:54:40,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:40,090 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 09:54:40,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 09:54:40,090 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-11-17 09:54:40,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:40,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2069662804, now seen corresponding path program 1 times [2021-11-17 09:54:40,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:40,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370627694] [2021-11-17 09:54:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:40,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 09:54:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-17 09:54:40,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:40,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370627694] [2021-11-17 09:54:40,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370627694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:40,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:40,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:54:40,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884112135] [2021-11-17 09:54:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:40,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:54:40,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:40,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:54:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:54:40,319 INFO L87 Difference]: Start difference. First operand 13422 states and 18467 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 09:54:42,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:54:42,678 INFO L93 Difference]: Finished difference Result 37638 states and 52173 transitions. [2021-11-17 09:54:42,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:54:42,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2021-11-17 09:54:42,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:54:42,789 INFO L225 Difference]: With dead ends: 37638 [2021-11-17 09:54:42,789 INFO L226 Difference]: Without dead ends: 24239 [2021-11-17 09:54:42,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:54:42,834 INFO L933 BasicCegarLoop]: 2109 mSDtfsCounter, 2770 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 1342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-17 09:54:42,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3108 Valid, 4304 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-17 09:54:42,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24239 states. [2021-11-17 09:54:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24239 to 21660. [2021-11-17 09:54:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21660 states, 15203 states have (on average 1.282444254423469) internal successors, (19497), 15580 states have internal predecessors, (19497), 5114 states have call successors, (5114), 1377 states have call predecessors, (5114), 1340 states have return successors, (5137), 4883 states have call predecessors, (5137), 5110 states have call successors, (5137) [2021-11-17 09:54:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21660 states to 21660 states and 29748 transitions. [2021-11-17 09:54:43,540 INFO L78 Accepts]: Start accepts. Automaton has 21660 states and 29748 transitions. Word has length 140 [2021-11-17 09:54:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:54:43,542 INFO L470 AbstractCegarLoop]: Abstraction has 21660 states and 29748 transitions. [2021-11-17 09:54:43,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-17 09:54:43,543 INFO L276 IsEmpty]: Start isEmpty. Operand 21660 states and 29748 transitions. [2021-11-17 09:54:43,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-17 09:54:43,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:43,545 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2021-11-17 09:54:43,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 09:54:43,545 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-17 09:54:43,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:43,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1823542494, now seen corresponding path program 1 times [2021-11-17 09:54:43,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:43,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892698981] [2021-11-17 09:54:43,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:43,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 09:54:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 09:54:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-17 09:54:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 09:54:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-11-17 09:54:43,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:43,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892698981] [2021-11-17 09:54:43,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892698981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:43,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:43,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:54:43,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492563740] [2021-11-17 09:54:43,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:43,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:54:43,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:43,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:54:43,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:54:43,716 INFO L87 Difference]: Start difference. First operand 21660 states and 29748 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 09:54:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:54:46,922 INFO L93 Difference]: Finished difference Result 68618 states and 95070 transitions. [2021-11-17 09:54:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:54:46,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 154 [2021-11-17 09:54:46,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:54:47,126 INFO L225 Difference]: With dead ends: 68618 [2021-11-17 09:54:47,126 INFO L226 Difference]: Without dead ends: 46981 [2021-11-17 09:54:47,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:54:47,217 INFO L933 BasicCegarLoop]: 2331 mSDtfsCounter, 2957 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 1344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3330 SdHoareTripleChecker+Valid, 4705 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1344 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:54:47,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3330 Valid, 4705 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1344 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 09:54:47,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46981 states. [2021-11-17 09:54:48,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46981 to 41883. [2021-11-17 09:54:48,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41883 states, 29355 states have (on average 1.2826775677056719) internal successors, (37653), 30131 states have internal predecessors, (37653), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2021-11-17 09:54:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41883 states to 41883 states and 57547 transitions. [2021-11-17 09:54:48,922 INFO L78 Accepts]: Start accepts. Automaton has 41883 states and 57547 transitions. Word has length 154 [2021-11-17 09:54:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:54:48,923 INFO L470 AbstractCegarLoop]: Abstraction has 41883 states and 57547 transitions. [2021-11-17 09:54:48,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 09:54:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 41883 states and 57547 transitions. [2021-11-17 09:54:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-17 09:54:48,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:48,925 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 09:54:48,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 09:54:48,925 INFO L402 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)] === [2021-11-17 09:54:48,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:48,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1687788886, now seen corresponding path program 1 times [2021-11-17 09:54:48,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:49,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792787069] [2021-11-17 09:54:49,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:49,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 09:54:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 09:54:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 09:54:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 09:54:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 09:54:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:54:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 09:54:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 09:54:49,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:49,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792787069] [2021-11-17 09:54:49,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792787069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:49,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:49,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:54:49,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978009399] [2021-11-17 09:54:49,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:49,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:54:49,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:49,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:54:49,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:54:49,316 INFO L87 Difference]: Start difference. First operand 41883 states and 57547 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:54:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:54:53,716 INFO L93 Difference]: Finished difference Result 135539 states and 190094 transitions. [2021-11-17 09:54:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:54:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2021-11-17 09:54:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:54:54,370 INFO L225 Difference]: With dead ends: 135539 [2021-11-17 09:54:54,371 INFO L226 Difference]: Without dead ends: 93735 [2021-11-17 09:54:54,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:54:54,531 INFO L933 BasicCegarLoop]: 3129 mSDtfsCounter, 2532 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 1214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 5756 SdHoareTripleChecker+Invalid, 2764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1214 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 09:54:54,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2906 Valid, 5756 Invalid, 2764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1214 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 09:54:54,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93735 states. [2021-11-17 09:54:57,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93735 to 83661. [2021-11-17 09:54:57,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83661 states, 58635 states have (on average 1.270998550353884) internal successors, (74525), 60185 states have internal predecessors, (74525), 19818 states have call successors, (19818), 5350 states have call predecessors, (19818), 5205 states have return successors, (20692), 18833 states have call predecessors, (20692), 19814 states have call successors, (20692) [2021-11-17 09:54:57,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83661 states to 83661 states and 115035 transitions. [2021-11-17 09:54:57,837 INFO L78 Accepts]: Start accepts. Automaton has 83661 states and 115035 transitions. Word has length 189 [2021-11-17 09:54:57,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:54:57,838 INFO L470 AbstractCegarLoop]: Abstraction has 83661 states and 115035 transitions. [2021-11-17 09:54:57,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:54:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 83661 states and 115035 transitions. [2021-11-17 09:54:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-17 09:54:57,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:54:57,841 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 09:54:57,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 09:54:57,841 INFO L402 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)] === [2021-11-17 09:54:57,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:54:57,842 INFO L85 PathProgramCache]: Analyzing trace with hash 920998572, now seen corresponding path program 1 times [2021-11-17 09:54:57,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:54:57,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718051177] [2021-11-17 09:54:57,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:54:57,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:54:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:54:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:54:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:54:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:54:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:54:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:54:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:54:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:54:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:54:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:54:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 09:54:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 09:54:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 09:54:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 09:54:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:54:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 09:54:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:54:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 09:54:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:54:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 09:54:58,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:54:58,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718051177] [2021-11-17 09:54:58,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718051177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:54:58,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:54:58,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:54:58,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415804480] [2021-11-17 09:54:58,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:54:58,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:54:58,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:54:58,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:54:58,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:54:58,029 INFO L87 Difference]: Start difference. First operand 83661 states and 115035 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:55:00,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:55:00,752 INFO L93 Difference]: Finished difference Result 130489 states and 179361 transitions. [2021-11-17 09:55:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 09:55:00,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2021-11-17 09:55:00,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:55:01,079 INFO L225 Difference]: With dead ends: 130489 [2021-11-17 09:55:01,079 INFO L226 Difference]: Without dead ends: 46907 [2021-11-17 09:55:01,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:55:01,302 INFO L933 BasicCegarLoop]: 1891 mSDtfsCounter, 2290 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 969 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 969 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-17 09:55:01,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2483 Valid, 2634 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [969 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-17 09:55:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46907 states. [2021-11-17 09:55:02,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46907 to 41883. [2021-11-17 09:55:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41883 states, 29355 states have (on average 1.2571963890308295) internal successors, (36905), 30131 states have internal predecessors, (36905), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2021-11-17 09:55:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41883 states to 41883 states and 56799 transitions. [2021-11-17 09:55:02,790 INFO L78 Accepts]: Start accepts. Automaton has 41883 states and 56799 transitions. Word has length 189 [2021-11-17 09:55:02,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:55:02,791 INFO L470 AbstractCegarLoop]: Abstraction has 41883 states and 56799 transitions. [2021-11-17 09:55:02,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:55:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 41883 states and 56799 transitions. [2021-11-17 09:55:02,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-17 09:55:02,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:55:02,793 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 09:55:02,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 09:55:02,794 INFO L402 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)] === [2021-11-17 09:55:02,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:55:02,794 INFO L85 PathProgramCache]: Analyzing trace with hash 866605674, now seen corresponding path program 1 times [2021-11-17 09:55:02,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:55:02,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689395260] [2021-11-17 09:55:02,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:55:02,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:55:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:55:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:55:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:55:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:55:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:55:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:55:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:55:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:55:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:55:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:55:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 09:55:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 09:55:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 09:55:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 09:55:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 09:55:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 09:55:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 09:55:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 09:55:02,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:55:02,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689395260] [2021-11-17 09:55:02,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689395260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:55:02,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:55:02,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:55:02,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833293792] [2021-11-17 09:55:02,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:55:02,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:55:02,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:55:02,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:55:02,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:55:02,992 INFO L87 Difference]: Start difference. First operand 41883 states and 56799 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:55:05,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:55:05,585 INFO L93 Difference]: Finished difference Result 88663 states and 121029 transitions. [2021-11-17 09:55:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 09:55:05,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2021-11-17 09:55:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:55:05,788 INFO L225 Difference]: With dead ends: 88663 [2021-11-17 09:55:05,789 INFO L226 Difference]: Without dead ends: 46859 [2021-11-17 09:55:05,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:55:05,911 INFO L933 BasicCegarLoop]: 1881 mSDtfsCounter, 2285 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-17 09:55:05,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2477 Valid, 2617 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-17 09:55:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46859 states. [2021-11-17 09:55:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46859 to 41835. [2021-11-17 09:55:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41835 states, 29307 states have (on average 1.2510662981540246) internal successors, (36665), 30083 states have internal predecessors, (36665), 9922 states have call successors, (9922), 2676 states have call predecessors, (9922), 2603 states have return successors, (9972), 9429 states have call predecessors, (9972), 9918 states have call successors, (9972) [2021-11-17 09:55:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41835 states to 41835 states and 56559 transitions. [2021-11-17 09:55:07,430 INFO L78 Accepts]: Start accepts. Automaton has 41835 states and 56559 transitions. Word has length 189 [2021-11-17 09:55:07,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:55:07,431 INFO L470 AbstractCegarLoop]: Abstraction has 41835 states and 56559 transitions. [2021-11-17 09:55:07,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:55:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 41835 states and 56559 transitions. [2021-11-17 09:55:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 09:55:07,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:55:07,433 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 09:55:07,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 09:55:07,434 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:55:07,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:55:07,434 INFO L85 PathProgramCache]: Analyzing trace with hash 230756765, now seen corresponding path program 1 times [2021-11-17 09:55:07,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:55:07,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882105172] [2021-11-17 09:55:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:55:07,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:55:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:55:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:55:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:55:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:55:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:55:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:55:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:55:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:55:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:55:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:55:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 09:55:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 09:55:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:55:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 09:55:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 09:55:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 09:55:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 09:55:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:07,578 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 09:55:07,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:55:07,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882105172] [2021-11-17 09:55:07,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882105172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:55:07,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:55:07,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 09:55:07,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653780538] [2021-11-17 09:55:07,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:55:07,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 09:55:07,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:55:07,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 09:55:07,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 09:55:07,580 INFO L87 Difference]: Start difference. First operand 41835 states and 56559 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:55:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:55:12,329 INFO L93 Difference]: Finished difference Result 132173 states and 180401 transitions. [2021-11-17 09:55:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 09:55:12,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2021-11-17 09:55:12,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:55:12,713 INFO L225 Difference]: With dead ends: 132173 [2021-11-17 09:55:12,714 INFO L226 Difference]: Without dead ends: 90417 [2021-11-17 09:55:12,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 09:55:12,859 INFO L933 BasicCegarLoop]: 2783 mSDtfsCounter, 2691 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 1181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 5386 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1181 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 09:55:12,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3052 Valid, 5386 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1181 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 09:55:12,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90417 states. [2021-11-17 09:55:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90417 to 80365. [2021-11-17 09:55:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80365 states, 56363 states have (on average 1.2516189698915956) internal successors, (70545), 57689 states have internal predecessors, (70545), 18954 states have call successors, (18954), 5158 states have call predecessors, (18954), 5045 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2021-11-17 09:55:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80365 states to 80365 states and 108557 transitions. [2021-11-17 09:55:16,215 INFO L78 Accepts]: Start accepts. Automaton has 80365 states and 108557 transitions. Word has length 192 [2021-11-17 09:55:16,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:55:16,216 INFO L470 AbstractCegarLoop]: Abstraction has 80365 states and 108557 transitions. [2021-11-17 09:55:16,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 09:55:16,216 INFO L276 IsEmpty]: Start isEmpty. Operand 80365 states and 108557 transitions. [2021-11-17 09:55:16,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 09:55:16,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:55:16,219 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 09:55:16,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 09:55:16,220 INFO L402 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)] === [2021-11-17 09:55:16,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:55:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 371305375, now seen corresponding path program 1 times [2021-11-17 09:55:16,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:55:16,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743904543] [2021-11-17 09:55:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:55:16,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:55:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:55:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:55:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:55:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:55:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:55:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:55:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:55:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:55:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:55:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:55:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 09:55:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 09:55:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:55:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 09:55:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 09:55:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 09:55:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 09:55:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-17 09:55:16,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:55:16,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743904543] [2021-11-17 09:55:16,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743904543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:55:16,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:55:16,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 09:55:16,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026029523] [2021-11-17 09:55:16,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:55:16,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 09:55:16,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:55:16,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 09:55:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 09:55:16,503 INFO L87 Difference]: Start difference. First operand 80365 states and 108557 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 09:55:20,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 09:55:20,470 INFO L93 Difference]: Finished difference Result 90419 states and 123699 transitions. [2021-11-17 09:55:20,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 09:55:20,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 192 [2021-11-17 09:55:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 09:55:20,948 INFO L225 Difference]: With dead ends: 90419 [2021-11-17 09:55:20,948 INFO L226 Difference]: Without dead ends: 90417 [2021-11-17 09:55:20,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 09:55:20,994 INFO L933 BasicCegarLoop]: 1872 mSDtfsCounter, 2282 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 5489 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 979 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-17 09:55:20,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2471 Valid, 5489 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [979 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-17 09:55:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90417 states. [2021-11-17 09:55:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90417 to 80369. [2021-11-17 09:55:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80369 states, 56366 states have (on average 1.251605577830607) internal successors, (70548), 57692 states have internal predecessors, (70548), 18954 states have call successors, (18954), 5159 states have call predecessors, (18954), 5046 states have return successors, (19058), 18225 states have call predecessors, (19058), 18950 states have call successors, (19058) [2021-11-17 09:55:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80369 states to 80369 states and 108560 transitions. [2021-11-17 09:55:24,282 INFO L78 Accepts]: Start accepts. Automaton has 80369 states and 108560 transitions. Word has length 192 [2021-11-17 09:55:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 09:55:24,282 INFO L470 AbstractCegarLoop]: Abstraction has 80369 states and 108560 transitions. [2021-11-17 09:55:24,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 09:55:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 80369 states and 108560 transitions. [2021-11-17 09:55:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-17 09:55:24,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 09:55:24,296 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 09:55:24,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 09:55:24,297 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 09:55:24,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 09:55:24,297 INFO L85 PathProgramCache]: Analyzing trace with hash 297458039, now seen corresponding path program 1 times [2021-11-17 09:55:24,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 09:55:24,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661991148] [2021-11-17 09:55:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 09:55:24,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 09:55:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 09:55:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 09:55:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 09:55:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 09:55:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 09:55:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 09:55:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 09:55:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 09:55:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 09:55:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 09:55:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 09:55:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 09:55:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 09:55:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 09:55:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 09:55:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 09:55:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 09:55:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 09:55:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 09:55:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 09:55:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-17 09:55:24,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 09:55:24,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661991148] [2021-11-17 09:55:24,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661991148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 09:55:24,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 09:55:24,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 09:55:24,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120946422] [2021-11-17 09:55:24,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 09:55:24,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 09:55:24,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 09:55:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 09:55:24,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 09:55:24,824 INFO L87 Difference]: Start difference. First operand 80369 states and 108560 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)