./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.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 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:04:29,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:04:29,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:04:29,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:04:29,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:04:29,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:04:29,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:04:29,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:04:29,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:04:29,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:04:29,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:04:29,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:04:29,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:04:29,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:04:29,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:04:29,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:04:29,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:04:29,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:04:29,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:04:29,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:04:29,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:04:29,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:04:29,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:04:29,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:04:29,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:04:29,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:04:29,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:04:29,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:04:29,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:04:29,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:04:29,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:04:29,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:04:29,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:04:29,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:04:29,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:04:29,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:04:29,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:04:29,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:04:29,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:04:29,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:04:29,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:04:29,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:04:29,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:04:29,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:04:29,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:04:29,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:04:29,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:04:29,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:04:29,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:04:29,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:04:29,778 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:04:29,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:04:29,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:04:29,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:04:29,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:04:29,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:04:29,798 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2021-12-21 17:04:29,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:04:29,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:04:29,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:04:29,982 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:04:29,982 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:04:29,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-12-21 17:04:30,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc45d7be/e506580468ec41a399ade3c82c4ae024/FLAG897e9e31d [2021-12-21 17:04:30,667 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:04:30,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-12-21 17:04:30,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc45d7be/e506580468ec41a399ade3c82c4ae024/FLAG897e9e31d [2021-12-21 17:04:31,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc45d7be/e506580468ec41a399ade3c82c4ae024 [2021-12-21 17:04:31,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:04:31,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:04:31,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:04:31,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:04:31,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:04:31,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:04:31" (1/1) ... [2021-12-21 17:04:31,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c19d251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:31, skipping insertion in model container [2021-12-21 17:04:31,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:04:31" (1/1) ... [2021-12-21 17:04:31,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:04:31,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:04:32,694 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2021-12-21 17:04:32,696 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2021-12-21 17:04:32,697 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2021-12-21 17:04:32,697 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2021-12-21 17:04:32,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:04:32,791 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:04:33,010 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2021-12-21 17:04:33,011 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2021-12-21 17:04:33,011 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2021-12-21 17:04:33,011 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2021-12-21 17:04:33,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:04:33,139 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:04:33,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33 WrapperNode [2021-12-21 17:04:33,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:04:33,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:04:33,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:04:33,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:04:33,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,314 INFO L137 Inliner]: procedures = 434, calls = 1806, calls flagged for inlining = 214, calls inlined = 197, statements flattened = 4294 [2021-12-21 17:04:33,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:04:33,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:04:33,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:04:33,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:04:33,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:04:33,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:04:33,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:04:33,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:04:33,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (1/1) ... [2021-12-21 17:04:33,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:04:33,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:04:33,538 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) [2021-12-21 17:04:33,544 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 [2021-12-21 17:04:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2021-12-21 17:04:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2021-12-21 17:04:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-21 17:04:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-21 17:04:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 17:04:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 17:04:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:04:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:04:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-21 17:04:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-21 17:04:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:04:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:04:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:04:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:04:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:04:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-21 17:04:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 17:04:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 17:04:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2021-12-21 17:04:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2021-12-21 17:04:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2021-12-21 17:04:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2021-12-21 17:04:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 17:04:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 17:04:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:04:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:04:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-21 17:04:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-21 17:04:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 17:04:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 17:04:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2021-12-21 17:04:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2021-12-21 17:04:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 17:04:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 17:04:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:04:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:04:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 17:04:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 17:04:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-12-21 17:04:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-12-21 17:04:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2021-12-21 17:04:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2021-12-21 17:04:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 17:04:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 17:04:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:04:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-12-21 17:04:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-12-21 17:04:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:04:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:04:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:04:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2021-12-21 17:04:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2021-12-21 17:04:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:04:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:04:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2021-12-21 17:04:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2021-12-21 17:04:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:04:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:04:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:04:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:04:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-21 17:04:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-21 17:04:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 17:04:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 17:04:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-21 17:04:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-21 17:04:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:04:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:04:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-21 17:04:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-21 17:04:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 17:04:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 17:04:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:04:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-21 17:04:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:04:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-21 17:04:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-21 17:04:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-21 17:04:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-21 17:04:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:04:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-12-21 17:04:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-12-21 17:04:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:04:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:04:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:04:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:04:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:04:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:04:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:04:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:04:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:04:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:04:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-21 17:04:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-21 17:04:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-21 17:04:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:04:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:04:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 17:04:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 17:04:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-21 17:04:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-21 17:04:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2021-12-21 17:04:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2021-12-21 17:04:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-21 17:04:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-21 17:04:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:04:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:04:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:04:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:04:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:04:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:04:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-12-21 17:04:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-12-21 17:04:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:04:33,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-21 17:04:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-21 17:04:33,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-21 17:04:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-21 17:04:33,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-12-21 17:04:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2021-12-21 17:04:33,586 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2021-12-21 17:04:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 17:04:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 17:04:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 17:04:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 17:04:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 17:04:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 17:04:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-21 17:04:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-21 17:04:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2021-12-21 17:04:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2021-12-21 17:04:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 17:04:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 17:04:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-21 17:04:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-21 17:04:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:04:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2021-12-21 17:04:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2021-12-21 17:04:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 17:04:33,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 17:04:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:04:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-21 17:04:33,595 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-21 17:04:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:04:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:04:33,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-21 17:04:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:04:33,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:04:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-21 17:04:33,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-12-21 17:04:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:04:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:04:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-12-21 17:04:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-12-21 17:04:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-21 17:04:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-21 17:04:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 17:04:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 17:04:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-21 17:04:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-21 17:04:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2021-12-21 17:04:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2021-12-21 17:04:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2021-12-21 17:04:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2021-12-21 17:04:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:04:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2021-12-21 17:04:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2021-12-21 17:04:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:04:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:04:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:04:33,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:04:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-21 17:04:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-21 17:04:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 17:04:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 17:04:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:04:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:04:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:04:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-12-21 17:04:33,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-12-21 17:04:34,202 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:04:34,204 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:04:34,656 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:04:35,945 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-21 17:04:36,014 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:04:36,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:04:36,026 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 17:04:36,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:04:36 BoogieIcfgContainer [2021-12-21 17:04:36,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:04:36,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:04:36,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:04:36,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:04:36,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:04:31" (1/3) ... [2021-12-21 17:04:36,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8783468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:04:36, skipping insertion in model container [2021-12-21 17:04:36,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:04:33" (2/3) ... [2021-12-21 17:04:36,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8783468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:04:36, skipping insertion in model container [2021-12-21 17:04:36,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:04:36" (3/3) ... [2021-12-21 17:04:36,034 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-12-21 17:04:36,038 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:04:36,038 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 17:04:36,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:04:36,102 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 [2021-12-21 17:04:36,104 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 17:04:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 1564 states, 1091 states have (on average 1.2768102658111824) internal successors, (1393), 1112 states have internal predecessors, (1393), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) [2021-12-21 17:04:36,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-21 17:04:36,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:36,168 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] [2021-12-21 17:04:36,169 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)] === [2021-12-21 17:04:36,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:36,188 INFO L85 PathProgramCache]: Analyzing trace with hash 11578464, now seen corresponding path program 1 times [2021-12-21 17:04:36,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:36,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341127700] [2021-12-21 17:04:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:36,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 17:04:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:04:36,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:36,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341127700] [2021-12-21 17:04:36,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341127700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:36,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:36,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:36,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941895184] [2021-12-21 17:04:36,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:36,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:36,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:36,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:36,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:36,852 INFO L87 Difference]: Start difference. First operand has 1564 states, 1091 states have (on average 1.2768102658111824) internal successors, (1393), 1112 states have internal predecessors, (1393), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) 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) [2021-12-21 17:04:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:39,421 INFO L93 Difference]: Finished difference Result 4647 states and 6595 transitions. [2021-12-21 17:04:39,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:39,423 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 [2021-12-21 17:04:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:39,449 INFO L225 Difference]: With dead ends: 4647 [2021-12-21 17:04:39,449 INFO L226 Difference]: Without dead ends: 3096 [2021-12-21 17:04:39,459 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 [2021-12-21 17:04:39,461 INFO L933 BasicCegarLoop]: 2252 mSDtfsCounter, 2779 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 1140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3120 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1140 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:39,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3120 Valid, 4531 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1140 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 17:04:39,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2021-12-21 17:04:39,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2996. [2021-12-21 17:04:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2111 states have (on average 1.2695405021316912) internal successors, (2680), 2152 states have internal predecessors, (2680), 724 states have call successors, (724), 159 states have call predecessors, (724), 158 states have return successors, (720), 714 states have call predecessors, (720), 720 states have call successors, (720) [2021-12-21 17:04:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 4124 transitions. [2021-12-21 17:04:39,678 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 4124 transitions. Word has length 127 [2021-12-21 17:04:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:39,680 INFO L470 AbstractCegarLoop]: Abstraction has 2996 states and 4124 transitions. [2021-12-21 17:04:39,680 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) [2021-12-21 17:04:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 4124 transitions. [2021-12-21 17:04:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-21 17:04:39,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:39,686 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] [2021-12-21 17:04:39,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:04:39,686 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)] === [2021-12-21 17:04:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:39,687 INFO L85 PathProgramCache]: Analyzing trace with hash -94211857, now seen corresponding path program 1 times [2021-12-21 17:04:39,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:39,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711915100] [2021-12-21 17:04:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:39,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 17:04:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 17:04:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:04:39,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:39,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711915100] [2021-12-21 17:04:39,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711915100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:39,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:39,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:39,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231667606] [2021-12-21 17:04:39,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:39,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:39,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:39,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:39,931 INFO L87 Difference]: Start difference. First operand 2996 states and 4124 transitions. 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, (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) [2021-12-21 17:04:42,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:42,195 INFO L93 Difference]: Finished difference Result 8638 states and 11911 transitions. [2021-12-21 17:04:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:42,195 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, (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 129 [2021-12-21 17:04:42,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:42,223 INFO L225 Difference]: With dead ends: 8638 [2021-12-21 17:04:42,224 INFO L226 Difference]: Without dead ends: 5665 [2021-12-21 17:04:42,236 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 [2021-12-21 17:04:42,237 INFO L933 BasicCegarLoop]: 2306 mSDtfsCounter, 2464 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 1128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2757 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1128 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:42,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2757 Valid, 4649 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1128 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 17:04:42,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2021-12-21 17:04:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5467. [2021-12-21 17:04:42,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 3842 states have (on average 1.2631441957313898) internal successors, (4853), 3922 states have internal predecessors, (4853), 1309 states have call successors, (1309), 308 states have call predecessors, (1309), 313 states have return successors, (1337), 1284 states have call predecessors, (1337), 1305 states have call successors, (1337) [2021-12-21 17:04:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 7499 transitions. [2021-12-21 17:04:42,472 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 7499 transitions. Word has length 129 [2021-12-21 17:04:42,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:42,473 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 7499 transitions. [2021-12-21 17:04:42,473 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, (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) [2021-12-21 17:04:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 7499 transitions. [2021-12-21 17:04:42,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-21 17:04:42,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:42,476 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] [2021-12-21 17:04:42,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:04:42,476 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)] === [2021-12-21 17:04:42,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:42,477 INFO L85 PathProgramCache]: Analyzing trace with hash 305562421, now seen corresponding path program 1 times [2021-12-21 17:04:42,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:42,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141436723] [2021-12-21 17:04:42,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:42,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 17:04:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 17:04:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:04:42,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:42,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141436723] [2021-12-21 17:04:42,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141436723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:42,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:42,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:42,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85957295] [2021-12-21 17:04:42,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:42,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:42,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:42,672 INFO L87 Difference]: Start difference. First operand 5467 states and 7499 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-12-21 17:04:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:44,757 INFO L93 Difference]: Finished difference Result 16349 states and 22494 transitions. [2021-12-21 17:04:44,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:44,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 132 [2021-12-21 17:04:44,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:44,854 INFO L225 Difference]: With dead ends: 16349 [2021-12-21 17:04:44,855 INFO L226 Difference]: Without dead ends: 10905 [2021-12-21 17:04:44,894 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 [2021-12-21 17:04:44,908 INFO L933 BasicCegarLoop]: 2514 mSDtfsCounter, 2527 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:44,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 4872 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1114 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 17:04:44,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10905 states. [2021-12-21 17:04:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10905 to 10525. [2021-12-21 17:04:45,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 7436 states have (on average 1.2658687466379774) internal successors, (9413), 7598 states have internal predecessors, (9413), 2479 states have call successors, (2479), 608 states have call predecessors, (2479), 607 states have return successors, (2539), 2414 states have call predecessors, (2539), 2475 states have call successors, (2539) [2021-12-21 17:04:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 14431 transitions. [2021-12-21 17:04:45,532 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 14431 transitions. Word has length 132 [2021-12-21 17:04:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:45,532 INFO L470 AbstractCegarLoop]: Abstraction has 10525 states and 14431 transitions. [2021-12-21 17:04:45,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-12-21 17:04:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 14431 transitions. [2021-12-21 17:04:45,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-21 17:04:45,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:45,537 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] [2021-12-21 17:04:45,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:04:45,537 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)] === [2021-12-21 17:04:45,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1460878253, now seen corresponding path program 1 times [2021-12-21 17:04:45,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:45,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144799212] [2021-12-21 17:04:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:45,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 17:04:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:04:45,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:45,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144799212] [2021-12-21 17:04:45,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144799212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:45,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:45,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:45,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960874438] [2021-12-21 17:04:45,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:45,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:45,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:45,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:45,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:45,818 INFO L87 Difference]: Start difference. First operand 10525 states and 14431 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-12-21 17:04:48,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:48,265 INFO L93 Difference]: Finished difference Result 30661 states and 42226 transitions. [2021-12-21 17:04:48,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:48,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 134 [2021-12-21 17:04:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:48,453 INFO L225 Difference]: With dead ends: 30661 [2021-12-21 17:04:48,454 INFO L226 Difference]: Without dead ends: 20159 [2021-12-21 17:04:48,479 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 [2021-12-21 17:04:48,481 INFO L933 BasicCegarLoop]: 2211 mSDtfsCounter, 2530 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 1167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:48,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2845 Valid, 4467 Invalid, 2629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1167 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 17:04:48,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20159 states. [2021-12-21 17:04:48,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20159 to 19427. [2021-12-21 17:04:48,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19427 states, 13610 states have (on average 1.266936076414401) internal successors, (17243), 13924 states have internal predecessors, (17243), 4645 states have call successors, (4645), 1174 states have call predecessors, (4645), 1169 states have return successors, (4769), 4504 states have call predecessors, (4769), 4641 states have call successors, (4769) [2021-12-21 17:04:48,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19427 states to 19427 states and 26657 transitions. [2021-12-21 17:04:48,960 INFO L78 Accepts]: Start accepts. Automaton has 19427 states and 26657 transitions. Word has length 134 [2021-12-21 17:04:48,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:48,961 INFO L470 AbstractCegarLoop]: Abstraction has 19427 states and 26657 transitions. [2021-12-21 17:04:48,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-12-21 17:04:48,961 INFO L276 IsEmpty]: Start isEmpty. Operand 19427 states and 26657 transitions. [2021-12-21 17:04:48,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-21 17:04:48,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:48,963 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] [2021-12-21 17:04:48,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 17:04:48,963 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)] === [2021-12-21 17:04:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1833140722, now seen corresponding path program 1 times [2021-12-21 17:04:48,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:48,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968343804] [2021-12-21 17:04:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:48,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-21 17:04:49,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:49,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968343804] [2021-12-21 17:04:49,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968343804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:49,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:49,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:49,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598056118] [2021-12-21 17:04:49,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:49,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:49,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:49,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:49,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:49,301 INFO L87 Difference]: Start difference. First operand 19427 states and 26657 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-12-21 17:04:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:51,726 INFO L93 Difference]: Finished difference Result 35774 states and 49077 transitions. [2021-12-21 17:04:51,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:51,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 134 [2021-12-21 17:04:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:51,872 INFO L225 Difference]: With dead ends: 35774 [2021-12-21 17:04:51,873 INFO L226 Difference]: Without dead ends: 16370 [2021-12-21 17:04:51,973 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 [2021-12-21 17:04:51,976 INFO L933 BasicCegarLoop]: 2520 mSDtfsCounter, 1967 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 4925 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:51,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2239 Valid, 4925 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-21 17:04:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16370 states. [2021-12-21 17:04:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16370 to 15663. [2021-12-21 17:04:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15663 states, 11026 states have (on average 1.2570288409214583) internal successors, (13860), 11280 states have internal predecessors, (13860), 3649 states have call successors, (3649), 996 states have call predecessors, (3649), 985 states have return successors, (3709), 3521 states have call predecessors, (3709), 3645 states have call successors, (3709) [2021-12-21 17:04:52,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15663 states to 15663 states and 21218 transitions. [2021-12-21 17:04:52,628 INFO L78 Accepts]: Start accepts. Automaton has 15663 states and 21218 transitions. Word has length 134 [2021-12-21 17:04:52,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:52,630 INFO L470 AbstractCegarLoop]: Abstraction has 15663 states and 21218 transitions. [2021-12-21 17:04:52,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-12-21 17:04:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 15663 states and 21218 transitions. [2021-12-21 17:04:52,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-21 17:04:52,632 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:52,632 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, 1] [2021-12-21 17:04:52,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 17:04:52,633 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)] === [2021-12-21 17:04:52,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1457727249, now seen corresponding path program 1 times [2021-12-21 17:04:52,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:52,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737576829] [2021-12-21 17:04:52,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:52,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:04:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 17:04:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 17:04:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 17:04:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:52,835 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2021-12-21 17:04:52,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:52,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737576829] [2021-12-21 17:04:52,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737576829] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:52,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:52,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:52,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388633059] [2021-12-21 17:04:52,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:52,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:52,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:52,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:52,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:52,837 INFO L87 Difference]: Start difference. First operand 15663 states and 21218 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-12-21 17:04:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:04:55,636 INFO L93 Difference]: Finished difference Result 47141 states and 64160 transitions. [2021-12-21 17:04:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:04:55,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 155 [2021-12-21 17:04:55,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:04:55,833 INFO L225 Difference]: With dead ends: 47141 [2021-12-21 17:04:55,834 INFO L226 Difference]: Without dead ends: 31501 [2021-12-21 17:04:55,875 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 [2021-12-21 17:04:55,877 INFO L933 BasicCegarLoop]: 2518 mSDtfsCounter, 2648 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 1132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 4883 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1132 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:04:55,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2998 Valid, 4883 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1132 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 17:04:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31501 states. [2021-12-21 17:04:56,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31501 to 30191. [2021-12-21 17:04:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30191 states, 21237 states have (on average 1.2573809860149738) internal successors, (26703), 21761 states have internal predecessors, (26703), 7054 states have call successors, (7054), 1918 states have call predecessors, (7054), 1897 states have return successors, (7178), 6777 states have call predecessors, (7178), 7050 states have call successors, (7178) [2021-12-21 17:04:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30191 states to 30191 states and 40935 transitions. [2021-12-21 17:04:57,010 INFO L78 Accepts]: Start accepts. Automaton has 30191 states and 40935 transitions. Word has length 155 [2021-12-21 17:04:57,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:04:57,011 INFO L470 AbstractCegarLoop]: Abstraction has 30191 states and 40935 transitions. [2021-12-21 17:04:57,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-12-21 17:04:57,011 INFO L276 IsEmpty]: Start isEmpty. Operand 30191 states and 40935 transitions. [2021-12-21 17:04:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-21 17:04:57,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:04:57,013 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] [2021-12-21 17:04:57,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 17:04:57,013 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)] === [2021-12-21 17:04:57,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:04:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1944694420, now seen corresponding path program 1 times [2021-12-21 17:04:57,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:04:57,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227147255] [2021-12-21 17:04:57,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:04:57,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:04:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:04:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:04:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:04:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:04:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:04:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:04:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:04:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:04:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:04:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:04:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:04:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:04:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:04:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 17:04:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:04:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 17:04:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:04:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:04:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:04:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-21 17:04:57,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:04:57,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227147255] [2021-12-21 17:04:57,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227147255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:04:57,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:04:57,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:04:57,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141462797] [2021-12-21 17:04:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:04:57,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:04:57,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:04:57,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:04:57,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:04:57,215 INFO L87 Difference]: Start difference. First operand 30191 states and 40935 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-12-21 17:05:00,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:00,680 INFO L93 Difference]: Finished difference Result 91057 states and 123953 transitions. [2021-12-21 17:05:00,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 17:05:00,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 183 [2021-12-21 17:05:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:00,991 INFO L225 Difference]: With dead ends: 91057 [2021-12-21 17:05:00,992 INFO L226 Difference]: Without dead ends: 60945 [2021-12-21 17:05:01,103 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 [2021-12-21 17:05:01,105 INFO L933 BasicCegarLoop]: 2695 mSDtfsCounter, 2552 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 1030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 5178 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1030 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:01,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2889 Valid, 5178 Invalid, 2478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1030 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-21 17:05:01,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60945 states. [2021-12-21 17:05:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60945 to 58437. [2021-12-21 17:05:02,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58437 states, 41247 states have (on average 1.2571338521589448) internal successors, (51853), 42149 states have internal predecessors, (51853), 13506 states have call successors, (13506), 3706 states have call predecessors, (13506), 3681 states have return successors, (13758), 13113 states have call predecessors, (13758), 13502 states have call successors, (13758) [2021-12-21 17:05:03,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58437 states to 58437 states and 79117 transitions. [2021-12-21 17:05:03,032 INFO L78 Accepts]: Start accepts. Automaton has 58437 states and 79117 transitions. Word has length 183 [2021-12-21 17:05:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:03,033 INFO L470 AbstractCegarLoop]: Abstraction has 58437 states and 79117 transitions. [2021-12-21 17:05:03,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-12-21 17:05:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 58437 states and 79117 transitions. [2021-12-21 17:05:03,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-21 17:05:03,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:03,036 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] [2021-12-21 17:05:03,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 17:05:03,036 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)] === [2021-12-21 17:05:03,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:03,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2085243030, now seen corresponding path program 1 times [2021-12-21 17:05:03,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:03,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124635989] [2021-12-21 17:05:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:03,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:05:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:05:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:05:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 17:05:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 17:05:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:05:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:05:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-12-21 17:05:03,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:03,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124635989] [2021-12-21 17:05:03,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124635989] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:03,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:03,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:03,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997787112] [2021-12-21 17:05:03,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:03,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:03,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:03,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:03,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:03,515 INFO L87 Difference]: Start difference. First operand 58437 states and 79117 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:05:06,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:06,063 INFO L93 Difference]: Finished difference Result 60947 states and 82955 transitions. [2021-12-21 17:05:06,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:06,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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 183 [2021-12-21 17:05:06,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:06,298 INFO L225 Difference]: With dead ends: 60947 [2021-12-21 17:05:06,299 INFO L226 Difference]: Without dead ends: 60945 [2021-12-21 17:05:06,334 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 [2021-12-21 17:05:06,334 INFO L933 BasicCegarLoop]: 1988 mSDtfsCounter, 2250 mSDsluCounter, 3776 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 5764 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 822 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:06,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2459 Valid, 5764 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-21 17:05:06,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60945 states. [2021-12-21 17:05:07,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60945 to 58441. [2021-12-21 17:05:08,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58441 states, 41250 states have (on average 1.2571151515151515) internal successors, (51856), 42152 states have internal predecessors, (51856), 13506 states have call successors, (13506), 3707 states have call predecessors, (13506), 3682 states have return successors, (13758), 13113 states have call predecessors, (13758), 13502 states have call successors, (13758) [2021-12-21 17:05:08,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58441 states to 58441 states and 79120 transitions. [2021-12-21 17:05:08,448 INFO L78 Accepts]: Start accepts. Automaton has 58441 states and 79120 transitions. Word has length 183 [2021-12-21 17:05:08,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:08,452 INFO L470 AbstractCegarLoop]: Abstraction has 58441 states and 79120 transitions. [2021-12-21 17:05:08,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-12-21 17:05:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 58441 states and 79120 transitions. [2021-12-21 17:05:08,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-21 17:05:08,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:08,454 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] [2021-12-21 17:05:08,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 17:05:08,455 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)] === [2021-12-21 17:05:08,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash 581128741, now seen corresponding path program 1 times [2021-12-21 17:05:08,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:08,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959058325] [2021-12-21 17:05:08,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:08,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:05:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:05:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:05:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 17:05:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 17:05:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:05:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:05:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 17:05:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:08,712 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-12-21 17:05:08,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:08,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959058325] [2021-12-21 17:05:08,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959058325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:08,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:08,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:08,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608549429] [2021-12-21 17:05:08,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:08,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:08,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:08,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:08,714 INFO L87 Difference]: Start difference. First operand 58441 states and 79120 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-12-21 17:05:11,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:11,529 INFO L93 Difference]: Finished difference Result 60951 states and 82958 transitions. [2021-12-21 17:05:11,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:11,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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) Word has length 188 [2021-12-21 17:05:11,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:11,749 INFO L225 Difference]: With dead ends: 60951 [2021-12-21 17:05:11,750 INFO L226 Difference]: Without dead ends: 60949 [2021-12-21 17:05:11,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:11,776 INFO L933 BasicCegarLoop]: 1991 mSDtfsCounter, 2242 mSDsluCounter, 3776 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 5767 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:11,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2451 Valid, 5767 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-21 17:05:11,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60949 states. [2021-12-21 17:05:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60949 to 58445. [2021-12-21 17:05:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58445 states, 41253 states have (on average 1.2570964535912539) internal successors, (51859), 42155 states have internal predecessors, (51859), 13506 states have call successors, (13506), 3708 states have call predecessors, (13506), 3683 states have return successors, (13758), 13113 states have call predecessors, (13758), 13502 states have call successors, (13758) [2021-12-21 17:05:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58445 states to 58445 states and 79123 transitions. [2021-12-21 17:05:13,711 INFO L78 Accepts]: Start accepts. Automaton has 58445 states and 79123 transitions. Word has length 188 [2021-12-21 17:05:13,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:13,712 INFO L470 AbstractCegarLoop]: Abstraction has 58445 states and 79123 transitions. [2021-12-21 17:05:13,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-12-21 17:05:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 58445 states and 79123 transitions. [2021-12-21 17:05:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-21 17:05:13,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:13,715 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:13,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 17:05:13,715 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)] === [2021-12-21 17:05:13,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:13,716 INFO L85 PathProgramCache]: Analyzing trace with hash -609615434, now seen corresponding path program 1 times [2021-12-21 17:05:13,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:13,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049401200] [2021-12-21 17:05:13,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:13,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:05:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:05:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:05:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 17:05:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 17:05:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:05:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:05:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 17:05:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 17:05:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-12-21 17:05:13,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:13,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049401200] [2021-12-21 17:05:13,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049401200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:13,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:13,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:13,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397221240] [2021-12-21 17:05:13,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:13,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:13,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:13,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:13,979 INFO L87 Difference]: Start difference. First operand 58445 states and 79123 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-21 17:05:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:17,034 INFO L93 Difference]: Finished difference Result 60955 states and 82961 transitions. [2021-12-21 17:05:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:17,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 193 [2021-12-21 17:05:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:17,266 INFO L225 Difference]: With dead ends: 60955 [2021-12-21 17:05:17,267 INFO L226 Difference]: Without dead ends: 60953 [2021-12-21 17:05:17,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:17,307 INFO L933 BasicCegarLoop]: 1990 mSDtfsCounter, 2242 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 5763 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:17,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2452 Valid, 5763 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 17:05:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60953 states. [2021-12-21 17:05:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60953 to 58449. [2021-12-21 17:05:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58449 states, 41256 states have (on average 1.2570777583866588) internal successors, (51862), 42158 states have internal predecessors, (51862), 13506 states have call successors, (13506), 3709 states have call predecessors, (13506), 3684 states have return successors, (13758), 13113 states have call predecessors, (13758), 13502 states have call successors, (13758) [2021-12-21 17:05:19,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58449 states to 58449 states and 79126 transitions. [2021-12-21 17:05:19,287 INFO L78 Accepts]: Start accepts. Automaton has 58449 states and 79126 transitions. Word has length 193 [2021-12-21 17:05:19,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:19,288 INFO L470 AbstractCegarLoop]: Abstraction has 58449 states and 79126 transitions. [2021-12-21 17:05:19,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-21 17:05:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 58449 states and 79126 transitions. [2021-12-21 17:05:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-21 17:05:19,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:19,292 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2021-12-21 17:05:19,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 17:05:19,292 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)] === [2021-12-21 17:05:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1845787781, now seen corresponding path program 1 times [2021-12-21 17:05:19,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:19,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939837823] [2021-12-21 17:05:19,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:19,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:05:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:05:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:05:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 17:05:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 17:05:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-21 17:05:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-21 17:05:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 17:05:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 17:05:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-21 17:05:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2021-12-21 17:05:19,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:19,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939837823] [2021-12-21 17:05:19,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939837823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:19,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:19,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 17:05:19,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161473180] [2021-12-21 17:05:19,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:19,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 17:05:19,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 17:05:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 17:05:19,554 INFO L87 Difference]: Start difference. First operand 58449 states and 79126 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-21 17:05:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:05:22,913 INFO L93 Difference]: Finished difference Result 60959 states and 82964 transitions. [2021-12-21 17:05:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:05:22,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 198 [2021-12-21 17:05:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:05:23,092 INFO L225 Difference]: With dead ends: 60959 [2021-12-21 17:05:23,093 INFO L226 Difference]: Without dead ends: 60957 [2021-12-21 17:05:23,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:05:23,117 INFO L933 BasicCegarLoop]: 1990 mSDtfsCounter, 2242 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 5763 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-21 17:05:23,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2452 Valid, 5763 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-21 17:05:23,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60957 states. [2021-12-21 17:05:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60957 to 58453. [2021-12-21 17:05:24,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58453 states, 41259 states have (on average 1.2570590659007732) internal successors, (51865), 42161 states have internal predecessors, (51865), 13506 states have call successors, (13506), 3710 states have call predecessors, (13506), 3685 states have return successors, (13758), 13113 states have call predecessors, (13758), 13502 states have call successors, (13758) [2021-12-21 17:05:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58453 states to 58453 states and 79129 transitions. [2021-12-21 17:05:25,295 INFO L78 Accepts]: Start accepts. Automaton has 58453 states and 79129 transitions. Word has length 198 [2021-12-21 17:05:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:05:25,296 INFO L470 AbstractCegarLoop]: Abstraction has 58453 states and 79129 transitions. [2021-12-21 17:05:25,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-21 17:05:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 58453 states and 79129 transitions. [2021-12-21 17:05:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-21 17:05:25,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:05:25,301 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 17:05:25,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 17:05:25,301 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-21 17:05:25,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:05:25,302 INFO L85 PathProgramCache]: Analyzing trace with hash 747766936, now seen corresponding path program 1 times [2021-12-21 17:05:25,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:05:25,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792107516] [2021-12-21 17:05:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:05:25,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:05:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:05:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 17:05:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 17:05:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 17:05:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 17:05:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-21 17:05:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-21 17:05:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 17:05:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-21 17:05:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 17:05:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 17:05:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 17:05:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:05:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 17:05:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 17:05:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:05:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 17:05:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:05:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-21 17:05:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:05:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-21 17:05:25,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:05:25,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792107516] [2021-12-21 17:05:25,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792107516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:05:25,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:05:25,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 17:05:25,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775529703] [2021-12-21 17:05:25,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:05:25,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 17:05:25,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:05:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 17:05:25,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 17:05:25,486 INFO L87 Difference]: Start difference. First operand 58453 states and 79129 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)