./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-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-icplus-ipg.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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:49:26,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:49:26,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:49:26,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:49:26,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:49:26,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:49:26,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:49:26,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:49:26,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:49:26,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:49:26,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:49:26,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:49:26,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:49:26,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:49:26,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:49:26,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:49:26,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:49:26,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:49:26,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:49:26,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:49:26,966 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:49:26,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:49:26,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:49:26,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:49:26,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:49:26,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:49:26,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:49:26,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:49:26,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:49:26,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:49:26,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:49:26,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:49:26,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:49:26,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:49:26,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:49:26,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:49:26,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:49:26,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:49:26,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:49:26,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:49:26,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:49:26,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:49:27,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:49:27,034 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:49:27,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:49:27,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:49:27,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:49:27,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:49:27,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:49:27,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:49:27,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:49:27,038 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:49:27,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:49:27,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:49:27,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:49:27,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:49:27,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:49:27,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:49:27,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:49:27,040 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:49:27,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:49:27,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:49:27,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:49:27,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:49:27,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:49:27,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:49:27,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:49:27,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:49:27,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:49:27,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:49:27,042 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:49:27,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:49:27,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:49:27,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-07-21 13:49:27,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:49:27,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:49:27,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:49:27,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:49:27,363 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:49:27,365 INFO L432 ainManager$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-icplus-ipg.cil.i [2022-07-21 13:49:27,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d67aea662/374255028b834efbbb4f482e3d294529/FLAGbefe493fe [2022-07-21 13:49:28,118 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:49:28,119 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-icplus-ipg.cil.i [2022-07-21 13:49:28,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d67aea662/374255028b834efbbb4f482e3d294529/FLAGbefe493fe [2022-07-21 13:49:28,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d67aea662/374255028b834efbbb4f482e3d294529 [2022-07-21 13:49:28,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:49:28,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:49:28,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:49:28,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:49:28,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:49:28,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:49:28" (1/1) ... [2022-07-21 13:49:28,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ea9e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:28, skipping insertion in model container [2022-07-21 13:49:28,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:49:28" (1/1) ... [2022-07-21 13:49:28,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:49:28,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:49:30,811 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-icplus-ipg.cil.i[315136,315149] [2022-07-21 13:49:30,814 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-icplus-ipg.cil.i[315305,315318] [2022-07-21 13:49:30,815 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-icplus-ipg.cil.i[315472,315485] [2022-07-21 13:49:30,815 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-icplus-ipg.cil.i[315640,315653] [2022-07-21 13:49:30,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:49:30,864 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:49:31,129 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-icplus-ipg.cil.i[315136,315149] [2022-07-21 13:49:31,138 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-icplus-ipg.cil.i[315305,315318] [2022-07-21 13:49:31,139 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-icplus-ipg.cil.i[315472,315485] [2022-07-21 13:49:31,139 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-icplus-ipg.cil.i[315640,315653] [2022-07-21 13:49:31,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:49:31,416 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:49:31,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31 WrapperNode [2022-07-21 13:49:31,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:49:31,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:49:31,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:49:31,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:49:31,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,692 INFO L137 Inliner]: procedures = 430, calls = 1707, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 4359 [2022-07-21 13:49:31,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:49:31,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:49:31,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:49:31,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:49:31,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:49:31,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:49:31,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:49:31,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:49:31,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (1/1) ... [2022-07-21 13:49:31,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:49:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:49:31,972 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) [2022-07-21 13:49:31,997 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 [2022-07-21 13:49:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-21 13:49:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-21 13:49:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:49:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:49:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:49:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:49:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 13:49:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 13:49:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:49:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:49:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 13:49:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 13:49:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-07-21 13:49:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-07-21 13:49:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:49:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:49:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 13:49:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 13:49:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-21 13:49:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-21 13:49:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-07-21 13:49:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-07-21 13:49:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-21 13:49:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-21 13:49:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-21 13:49:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-21 13:49:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-21 13:49:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-21 13:49:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-07-21 13:49:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-07-21 13:49:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-07-21 13:49:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-07-21 13:49:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:49:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:49:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-21 13:49:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-21 13:49:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-21 13:49:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-21 13:49:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:49:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:49:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:49:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:49:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 13:49:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 13:49:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:49:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-07-21 13:49:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-07-21 13:49:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-07-21 13:49:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-07-21 13:49:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:49:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:49:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 13:49:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:49:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:49:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-07-21 13:49:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-07-21 13:49:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 13:49:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:49:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:49:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 13:49:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 13:49:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 13:49:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:49:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:49:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 13:49:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 13:49:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:49:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:49:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:49:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:49:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 13:49:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 13:49:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 13:49:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 13:49:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 13:49:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 13:49:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-07-21 13:49:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-07-21 13:49:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:49:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:49:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-07-21 13:49:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-07-21 13:49:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:49:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:49:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:49:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 13:49:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 13:49:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:49:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:49:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:49:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 13:49:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 13:49:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:49:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-21 13:49:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-21 13:49:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:49:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:49:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-07-21 13:49:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-07-21 13:49:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:49:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 13:49:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-21 13:49:32,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-21 13:49:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:49:32,032 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:49:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 13:49:32,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 13:49:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:49:32,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:49:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-07-21 13:49:32,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-07-21 13:49:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-07-21 13:49:32,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-07-21 13:49:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-07-21 13:49:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-07-21 13:49:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 13:49:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 13:49:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-07-21 13:49:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-07-21 13:49:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-21 13:49:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-21 13:49:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:49:32,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:49:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-07-21 13:49:32,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-07-21 13:49:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:49:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:49:32,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:49:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:49:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-07-21 13:49:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-07-21 13:49:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:49:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:49:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 13:49:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 13:49:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 13:49:32,090 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 13:49:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 13:49:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 13:49:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:49:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:49:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-07-21 13:49:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-07-21 13:49:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-21 13:49:32,091 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-21 13:49:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:49:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 13:49:32,092 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 13:49:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:49:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-07-21 13:49:32,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-07-21 13:49:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-07-21 13:49:32,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-07-21 13:49:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-07-21 13:49:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-07-21 13:49:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:49:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:49:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-21 13:49:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 13:49:32,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 13:49:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:49:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:49:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:49:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:49:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-21 13:49:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-21 13:49:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 13:49:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 13:49:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-07-21 13:49:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-07-21 13:49:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-07-21 13:49:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-07-21 13:49:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-21 13:49:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-21 13:49:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 13:49:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 13:49:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:49:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:49:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 13:49:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 13:49:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 13:49:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-21 13:49:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-21 13:49:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:49:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:49:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-07-21 13:49:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-07-21 13:49:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-07-21 13:49:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-07-21 13:49:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-07-21 13:49:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-07-21 13:49:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-07-21 13:49:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-07-21 13:49:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-07-21 13:49:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-07-21 13:49:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:49:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:49:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-07-21 13:49:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-07-21 13:49:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-21 13:49:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-21 13:49:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-21 13:49:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-21 13:49:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-21 13:49:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 13:49:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-07-21 13:49:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-07-21 13:49:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:49:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:49:32,896 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:49:32,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:49:33,706 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:49:38,497 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:49:38,548 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:49:38,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:49:38,568 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 13:49:38,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:49:38 BoogieIcfgContainer [2022-07-21 13:49:38,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:49:38,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:49:38,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:49:38,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:49:38,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:49:28" (1/3) ... [2022-07-21 13:49:38,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f21376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:49:38, skipping insertion in model container [2022-07-21 13:49:38,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31" (2/3) ... [2022-07-21 13:49:38,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f21376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:49:38, skipping insertion in model container [2022-07-21 13:49:38,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:49:38" (3/3) ... [2022-07-21 13:49:38,579 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-07-21 13:49:38,591 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:49:38,591 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 13:49:38,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:49:38,679 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@37d6e096, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1fe5e7a9 [2022-07-21 13:49:38,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 13:49:38,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 1854 states, 1301 states have (on average 1.3374327440430438) internal successors, (1740), 1336 states have internal predecessors, (1740), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2022-07-21 13:49:38,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 13:49:38,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:38,710 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:38,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:38,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:38,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1489934111, now seen corresponding path program 1 times [2022-07-21 13:49:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:49:38,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330500544] [2022-07-21 13:49:38,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:38,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:49:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:49:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:49:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:49:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:49:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:49:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:49:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:49:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:49:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:49:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 13:49:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-21 13:49:39,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:49:39,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330500544] [2022-07-21 13:49:39,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330500544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:39,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:39,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:49:39,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286023037] [2022-07-21 13:49:39,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:39,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:49:39,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:49:39,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:49:39,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:49:39,483 INFO L87 Difference]: Start difference. First operand has 1854 states, 1301 states have (on average 1.3374327440430438) internal successors, (1740), 1336 states have internal predecessors, (1740), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 13:49:44,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:44,079 INFO L93 Difference]: Finished difference Result 5558 states and 8172 transitions. [2022-07-21 13:49:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:49:44,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-07-21 13:49:44,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:44,128 INFO L225 Difference]: With dead ends: 5558 [2022-07-21 13:49:44,129 INFO L226 Difference]: Without dead ends: 3715 [2022-07-21 13:49:44,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:49:44,153 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 3469 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 1414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 4854 SdHoareTripleChecker+Invalid, 3550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1414 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:44,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 4854 Invalid, 3550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1414 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-21 13:49:44,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3715 states. [2022-07-21 13:49:44,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3715 to 3567. [2022-07-21 13:49:44,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3567 states, 2520 states have (on average 1.2575396825396825) internal successors, (3169), 2587 states have internal predecessors, (3169), 858 states have call successors, (858), 187 states have call predecessors, (858), 186 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2022-07-21 13:49:44,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4881 transitions. [2022-07-21 13:49:44,427 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4881 transitions. Word has length 116 [2022-07-21 13:49:44,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:44,430 INFO L495 AbstractCegarLoop]: Abstraction has 3567 states and 4881 transitions. [2022-07-21 13:49:44,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 13:49:44,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4881 transitions. [2022-07-21 13:49:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-21 13:49:44,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:44,439 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:44,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 13:49:44,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:44,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:44,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2038741352, now seen corresponding path program 1 times [2022-07-21 13:49:44,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:49:44,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933033315] [2022-07-21 13:49:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:44,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:49:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:49:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:49:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:49:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:49:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:49:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:49:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:49:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:49:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:49:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:49:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 13:49:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-21 13:49:44,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:49:44,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933033315] [2022-07-21 13:49:44,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933033315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:44,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:44,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:49:44,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754919905] [2022-07-21 13:49:44,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:44,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:49:44,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:49:44,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:49:44,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:49:44,704 INFO L87 Difference]: Start difference. First operand 3567 states and 4881 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (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) [2022-07-21 13:49:48,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:48,658 INFO L93 Difference]: Finished difference Result 10097 states and 13843 transitions. [2022-07-21 13:49:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:49:48,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (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 120 [2022-07-21 13:49:48,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:48,707 INFO L225 Difference]: With dead ends: 10097 [2022-07-21 13:49:48,707 INFO L226 Difference]: Without dead ends: 6551 [2022-07-21 13:49:48,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:49:48,729 INFO L413 NwaCegarLoop]: 2696 mSDtfsCounter, 2775 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 1328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 4940 SdHoareTripleChecker+Invalid, 3344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1328 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:48,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 4940 Invalid, 3344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1328 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-21 13:49:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6551 states. [2022-07-21 13:49:48,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6551 to 6264. [2022-07-21 13:49:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6264 states, 4413 states have (on average 1.2454112848402448) internal successors, (5496), 4527 states have internal predecessors, (5496), 1503 states have call successors, (1503), 352 states have call predecessors, (1503), 345 states have return successors, (1519), 1470 states have call predecessors, (1519), 1499 states have call successors, (1519) [2022-07-21 13:49:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6264 states to 6264 states and 8518 transitions. [2022-07-21 13:49:49,011 INFO L78 Accepts]: Start accepts. Automaton has 6264 states and 8518 transitions. Word has length 120 [2022-07-21 13:49:49,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:49,012 INFO L495 AbstractCegarLoop]: Abstraction has 6264 states and 8518 transitions. [2022-07-21 13:49:49,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (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) [2022-07-21 13:49:49,012 INFO L276 IsEmpty]: Start isEmpty. Operand 6264 states and 8518 transitions. [2022-07-21 13:49:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 13:49:49,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:49,019 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:49,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 13:49:49,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:49:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:49,020 INFO L85 PathProgramCache]: Analyzing trace with hash 78808683, now seen corresponding path program 1 times [2022-07-21 13:49:49,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:49:49,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418604866] [2022-07-21 13:49:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:49,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:49:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:49:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:49:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:49:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:49:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:49:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:49:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:49:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:49:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:49:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 13:49:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 13:49:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:49:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 13:49:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 13:49:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 13:49:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 13:49:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-07-21 13:49:49,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:49:49,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418604866] [2022-07-21 13:49:49,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418604866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:49,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:49,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:49:49,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136423215] [2022-07-21 13:49:49,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:49,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:49,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:49:49,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:49,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:49:49,376 INFO L87 Difference]: Start difference. First operand 6264 states and 8518 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 13:49:57,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:49:57,856 INFO L93 Difference]: Finished difference Result 19318 states and 26528 transitions. [2022-07-21 13:49:57,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 13:49:57,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-07-21 13:49:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:49:57,937 INFO L225 Difference]: With dead ends: 19318 [2022-07-21 13:49:57,937 INFO L226 Difference]: Without dead ends: 13075 [2022-07-21 13:49:57,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:49:57,967 INFO L413 NwaCegarLoop]: 2452 mSDtfsCounter, 5251 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 3440 mSolverCounterSat, 3342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5526 SdHoareTripleChecker+Valid, 4834 SdHoareTripleChecker+Invalid, 6782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3342 IncrementalHoareTripleChecker+Valid, 3440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:49:57,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5526 Valid, 4834 Invalid, 6782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3342 Valid, 3440 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-21 13:49:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13075 states. [2022-07-21 13:49:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13075 to 11776. [2022-07-21 13:49:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11776 states, 8273 states have (on average 1.2445304000967001) internal successors, (10296), 8493 states have internal predecessors, (10296), 2823 states have call successors, (2823), 692 states have call predecessors, (2823), 677 states have return successors, (2859), 2750 states have call predecessors, (2859), 2819 states have call successors, (2859) [2022-07-21 13:49:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11776 states to 11776 states and 15978 transitions. [2022-07-21 13:49:58,617 INFO L78 Accepts]: Start accepts. Automaton has 11776 states and 15978 transitions. Word has length 167 [2022-07-21 13:49:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:49:58,618 INFO L495 AbstractCegarLoop]: Abstraction has 11776 states and 15978 transitions. [2022-07-21 13:49:58,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 13:49:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 11776 states and 15978 transitions. [2022-07-21 13:49:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-21 13:49:58,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:49:58,624 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:49:58,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 13:49:58,624 INFO L420 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)] === [2022-07-21 13:49:58,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:49:58,627 INFO L85 PathProgramCache]: Analyzing trace with hash 2012312247, now seen corresponding path program 1 times [2022-07-21 13:49:58,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:49:58,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905941172] [2022-07-21 13:49:58,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:49:58,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:49:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:49:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:49:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:49:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:49:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:49:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:49:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:49:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:49:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:49:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:49:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:49:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:49:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:49:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 13:49:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 13:49:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 13:49:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 13:49:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:49:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-07-21 13:49:58,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:49:58,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905941172] [2022-07-21 13:49:58,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905941172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:49:58,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:49:58,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:49:58,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168965501] [2022-07-21 13:49:58,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:49:58,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:49:58,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:49:58,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:49:58,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:49:58,996 INFO L87 Difference]: Start difference. First operand 11776 states and 15978 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 13:50:06,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:06,083 INFO L93 Difference]: Finished difference Result 22158 states and 30270 transitions. [2022-07-21 13:50:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 13:50:06,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2022-07-21 13:50:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:06,145 INFO L225 Difference]: With dead ends: 22158 [2022-07-21 13:50:06,146 INFO L226 Difference]: Without dead ends: 10403 [2022-07-21 13:50:06,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:50:06,196 INFO L413 NwaCegarLoop]: 3280 mSDtfsCounter, 3651 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 2433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3881 SdHoareTripleChecker+Valid, 5976 SdHoareTripleChecker+Invalid, 5888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2433 IncrementalHoareTripleChecker+Valid, 3455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:06,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3881 Valid, 5976 Invalid, 5888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2433 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-07-21 13:50:06,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10403 states. [2022-07-21 13:50:06,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10403 to 9420. [2022-07-21 13:50:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9420 states, 6680 states have (on average 1.2452095808383234) internal successors, (8318), 6858 states have internal predecessors, (8318), 2196 states have call successors, (2196), 554 states have call predecessors, (2196), 541 states have return successors, (2213), 2130 states have call predecessors, (2213), 2192 states have call successors, (2213) [2022-07-21 13:50:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9420 states to 9420 states and 12727 transitions. [2022-07-21 13:50:06,688 INFO L78 Accepts]: Start accepts. Automaton has 9420 states and 12727 transitions. Word has length 165 [2022-07-21 13:50:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:06,689 INFO L495 AbstractCegarLoop]: Abstraction has 9420 states and 12727 transitions. [2022-07-21 13:50:06,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 13:50:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 9420 states and 12727 transitions. [2022-07-21 13:50:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-21 13:50:06,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:06,692 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:50:06,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 13:50:06,693 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:06,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:06,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1409791130, now seen corresponding path program 1 times [2022-07-21 13:50:06,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:06,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441639413] [2022-07-21 13:50:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:06,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-07-21 13:50:06,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:06,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441639413] [2022-07-21 13:50:06,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441639413] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:06,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:06,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:50:06,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418107720] [2022-07-21 13:50:06,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:06,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 13:50:06,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:06,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 13:50:06,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 13:50:06,946 INFO L87 Difference]: Start difference. First operand 9420 states and 12727 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 13:50:10,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:10,400 INFO L93 Difference]: Finished difference Result 28367 states and 38552 transitions. [2022-07-21 13:50:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:50:10,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2022-07-21 13:50:10,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:10,482 INFO L225 Difference]: With dead ends: 28367 [2022-07-21 13:50:10,483 INFO L226 Difference]: Without dead ends: 19043 [2022-07-21 13:50:10,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:50:10,512 INFO L413 NwaCegarLoop]: 2740 mSDtfsCounter, 3415 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2123 mSolverCounterSat, 1387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3816 SdHoareTripleChecker+Valid, 5069 SdHoareTripleChecker+Invalid, 3510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1387 IncrementalHoareTripleChecker+Valid, 2123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:10,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3816 Valid, 5069 Invalid, 3510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1387 Valid, 2123 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-21 13:50:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19043 states. [2022-07-21 13:50:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19043 to 18235. [2022-07-21 13:50:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18235 states, 12961 states have (on average 1.24566005709436) internal successors, (16145), 13287 states have internal predecessors, (16145), 4220 states have call successors, (4220), 1072 states have call predecessors, (4220), 1051 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-07-21 13:50:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18235 states to 18235 states and 24623 transitions. [2022-07-21 13:50:11,390 INFO L78 Accepts]: Start accepts. Automaton has 18235 states and 24623 transitions. Word has length 172 [2022-07-21 13:50:11,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:11,391 INFO L495 AbstractCegarLoop]: Abstraction has 18235 states and 24623 transitions. [2022-07-21 13:50:11,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 13:50:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 18235 states and 24623 transitions. [2022-07-21 13:50:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-21 13:50:11,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:11,395 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:50:11,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 13:50:11,396 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1550339740, now seen corresponding path program 1 times [2022-07-21 13:50:11,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:11,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571987592] [2022-07-21 13:50:11,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:11,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:11,711 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-21 13:50:11,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:11,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571987592] [2022-07-21 13:50:11,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571987592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:11,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:11,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:50:11,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555306916] [2022-07-21 13:50:11,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:11,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:50:11,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:11,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:50:11,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:50:11,714 INFO L87 Difference]: Start difference. First operand 18235 states and 24623 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:50:15,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:15,082 INFO L93 Difference]: Finished difference Result 19045 states and 25906 transitions. [2022-07-21 13:50:15,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:50:15,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2022-07-21 13:50:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:15,169 INFO L225 Difference]: With dead ends: 19045 [2022-07-21 13:50:15,169 INFO L226 Difference]: Without dead ends: 19043 [2022-07-21 13:50:15,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:15,186 INFO L413 NwaCegarLoop]: 2333 mSDtfsCounter, 2748 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 3895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1009 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:15,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 5892 Invalid, 3895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1009 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-21 13:50:15,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19043 states. [2022-07-21 13:50:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19043 to 18239. [2022-07-21 13:50:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18239 states, 12964 states have (on average 1.2456032088861462) internal successors, (16148), 13290 states have internal predecessors, (16148), 4220 states have call successors, (4220), 1073 states have call predecessors, (4220), 1052 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-07-21 13:50:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18239 states to 18239 states and 24626 transitions. [2022-07-21 13:50:15,963 INFO L78 Accepts]: Start accepts. Automaton has 18239 states and 24626 transitions. Word has length 172 [2022-07-21 13:50:15,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:15,963 INFO L495 AbstractCegarLoop]: Abstraction has 18239 states and 24626 transitions. [2022-07-21 13:50:15,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 13:50:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 18239 states and 24626 transitions. [2022-07-21 13:50:15,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-21 13:50:15,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:15,967 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:50:15,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 13:50:15,968 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:15,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:15,968 INFO L85 PathProgramCache]: Analyzing trace with hash 581041908, now seen corresponding path program 1 times [2022-07-21 13:50:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:15,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743811057] [2022-07-21 13:50:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:15,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:50:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-21 13:50:16,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743811057] [2022-07-21 13:50:16,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743811057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:16,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:16,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:50:16,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789856382] [2022-07-21 13:50:16,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:16,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:50:16,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:16,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:50:16,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:50:16,274 INFO L87 Difference]: Start difference. First operand 18239 states and 24626 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:19,705 INFO L93 Difference]: Finished difference Result 19049 states and 25909 transitions. [2022-07-21 13:50:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:50:19,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 177 [2022-07-21 13:50:19,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:19,800 INFO L225 Difference]: With dead ends: 19049 [2022-07-21 13:50:19,800 INFO L226 Difference]: Without dead ends: 19047 [2022-07-21 13:50:19,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:19,818 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 2740 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 3894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:19,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 5895 Invalid, 3894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1008 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-21 13:50:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19047 states. [2022-07-21 13:50:20,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19047 to 18243. [2022-07-21 13:50:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18243 states, 12967 states have (on average 1.2455463869823398) internal successors, (16151), 13293 states have internal predecessors, (16151), 4220 states have call successors, (4220), 1074 states have call predecessors, (4220), 1053 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-07-21 13:50:20,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18243 states to 18243 states and 24629 transitions. [2022-07-21 13:50:20,614 INFO L78 Accepts]: Start accepts. Automaton has 18243 states and 24629 transitions. Word has length 177 [2022-07-21 13:50:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:20,614 INFO L495 AbstractCegarLoop]: Abstraction has 18243 states and 24629 transitions. [2022-07-21 13:50:20,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18243 states and 24629 transitions. [2022-07-21 13:50:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-21 13:50:20,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:20,618 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:50:20,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 13:50:20,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:20,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:20,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1128127836, now seen corresponding path program 1 times [2022-07-21 13:50:20,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:20,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286782123] [2022-07-21 13:50:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:20,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:50:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:50:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-07-21 13:50:20,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:20,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286782123] [2022-07-21 13:50:20,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286782123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:20,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:20,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:50:20,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330601986] [2022-07-21 13:50:20,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:20,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:50:20,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:20,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:50:20,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:50:20,943 INFO L87 Difference]: Start difference. First operand 18243 states and 24629 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:24,669 INFO L93 Difference]: Finished difference Result 19053 states and 25912 transitions. [2022-07-21 13:50:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:50:24,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 182 [2022-07-21 13:50:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:24,753 INFO L225 Difference]: With dead ends: 19053 [2022-07-21 13:50:24,754 INFO L226 Difference]: Without dead ends: 19051 [2022-07-21 13:50:24,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:24,769 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 2740 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 5891 SdHoareTripleChecker+Invalid, 3893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:24,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 5891 Invalid, 3893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1007 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 13:50:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19051 states. [2022-07-21 13:50:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19051 to 18247. [2022-07-21 13:50:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18247 states, 12970 states have (on average 1.2454895913646877) internal successors, (16154), 13296 states have internal predecessors, (16154), 4220 states have call successors, (4220), 1075 states have call predecessors, (4220), 1054 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-07-21 13:50:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18247 states to 18247 states and 24632 transitions. [2022-07-21 13:50:25,758 INFO L78 Accepts]: Start accepts. Automaton has 18247 states and 24632 transitions. Word has length 182 [2022-07-21 13:50:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:25,759 INFO L495 AbstractCegarLoop]: Abstraction has 18247 states and 24632 transitions. [2022-07-21 13:50:25,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 18247 states and 24632 transitions. [2022-07-21 13:50:25,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 13:50:25,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:25,764 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:25,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 13:50:25,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:25,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:25,765 INFO L85 PathProgramCache]: Analyzing trace with hash 203754977, now seen corresponding path program 1 times [2022-07-21 13:50:25,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:25,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595844986] [2022-07-21 13:50:25,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:25,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:25,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:26,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 13:50:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-21 13:50:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:26,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:50:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:26,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 13:50:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:26,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 13:50:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 13:50:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-07-21 13:50:26,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:26,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595844986] [2022-07-21 13:50:26,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595844986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:26,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:26,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:50:26,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419786065] [2022-07-21 13:50:26,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:26,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:50:26,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:26,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:50:26,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:50:26,049 INFO L87 Difference]: Start difference. First operand 18247 states and 24632 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 13:50:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:36,082 INFO L93 Difference]: Finished difference Result 46461 states and 63050 transitions. [2022-07-21 13:50:36,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:50:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2022-07-21 13:50:36,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:36,293 INFO L225 Difference]: With dead ends: 46461 [2022-07-21 13:50:36,293 INFO L226 Difference]: Without dead ends: 28310 [2022-07-21 13:50:36,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:50:36,341 INFO L413 NwaCegarLoop]: 4327 mSDtfsCounter, 3561 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 2353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 7702 SdHoareTripleChecker+Invalid, 6052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2353 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:36,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3822 Valid, 7702 Invalid, 6052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2353 Valid, 3699 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-07-21 13:50:36,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28310 states. [2022-07-21 13:50:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28310 to 27070. [2022-07-21 13:50:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27070 states, 19259 states have (on average 1.2455994599927307) internal successors, (23989), 19733 states have internal predecessors, (23989), 6244 states have call successors, (6244), 1593 states have call predecessors, (6244), 1564 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-07-21 13:50:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27070 states to 27070 states and 36536 transitions. [2022-07-21 13:50:37,536 INFO L78 Accepts]: Start accepts. Automaton has 27070 states and 36536 transitions. Word has length 199 [2022-07-21 13:50:37,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:37,537 INFO L495 AbstractCegarLoop]: Abstraction has 27070 states and 36536 transitions. [2022-07-21 13:50:37,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 13:50:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 27070 states and 36536 transitions. [2022-07-21 13:50:37,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 13:50:37,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:37,541 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 13:50:37,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 13:50:37,542 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:37,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:37,542 INFO L85 PathProgramCache]: Analyzing trace with hash -789456972, now seen corresponding path program 1 times [2022-07-21 13:50:37,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:37,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524795664] [2022-07-21 13:50:37,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:37,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:50:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:50:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:50:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-07-21 13:50:37,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:37,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524795664] [2022-07-21 13:50:37,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524795664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:37,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:37,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:50:37,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300209269] [2022-07-21 13:50:37,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:37,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:50:37,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:37,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:50:37,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:50:37,857 INFO L87 Difference]: Start difference. First operand 27070 states and 36536 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:41,566 INFO L93 Difference]: Finished difference Result 28282 states and 38454 transitions. [2022-07-21 13:50:41,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:50:41,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 187 [2022-07-21 13:50:41,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:41,672 INFO L225 Difference]: With dead ends: 28282 [2022-07-21 13:50:41,672 INFO L226 Difference]: Without dead ends: 28280 [2022-07-21 13:50:41,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:41,687 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 2740 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1006 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 5891 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:41,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 5891 Invalid, 3892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1006 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 13:50:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28280 states. [2022-07-21 13:50:42,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28280 to 27074. [2022-07-21 13:50:42,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27074 states, 19262 states have (on average 1.245561208597238) internal successors, (23992), 19736 states have internal predecessors, (23992), 6244 states have call successors, (6244), 1594 states have call predecessors, (6244), 1565 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-07-21 13:50:42,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27074 states to 27074 states and 36539 transitions. [2022-07-21 13:50:42,817 INFO L78 Accepts]: Start accepts. Automaton has 27074 states and 36539 transitions. Word has length 187 [2022-07-21 13:50:42,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:42,817 INFO L495 AbstractCegarLoop]: Abstraction has 27074 states and 36539 transitions. [2022-07-21 13:50:42,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:42,818 INFO L276 IsEmpty]: Start isEmpty. Operand 27074 states and 36539 transitions. [2022-07-21 13:50:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-21 13:50:42,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:42,826 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:42,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 13:50:42,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:42,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:42,827 INFO L85 PathProgramCache]: Analyzing trace with hash 217164828, now seen corresponding path program 1 times [2022-07-21 13:50:42,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:42,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549962218] [2022-07-21 13:50:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:42,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:42,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:50:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:50:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:50:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:50:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-07-21 13:50:43,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:43,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549962218] [2022-07-21 13:50:43,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549962218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:43,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:43,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:50:43,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209343371] [2022-07-21 13:50:43,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:43,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:50:43,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:43,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:50:43,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:50:43,114 INFO L87 Difference]: Start difference. First operand 27074 states and 36539 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:47,097 INFO L93 Difference]: Finished difference Result 28286 states and 38457 transitions. [2022-07-21 13:50:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:50:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 192 [2022-07-21 13:50:47,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:47,189 INFO L225 Difference]: With dead ends: 28286 [2022-07-21 13:50:47,189 INFO L226 Difference]: Without dead ends: 28284 [2022-07-21 13:50:47,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:47,199 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 2740 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 3891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:47,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 5895 Invalid, 3891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1005 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 13:50:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28284 states. [2022-07-21 13:50:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28284 to 27078. [2022-07-21 13:50:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27078 states, 19265 states have (on average 1.2455229691149754) internal successors, (23995), 19739 states have internal predecessors, (23995), 6244 states have call successors, (6244), 1595 states have call predecessors, (6244), 1566 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-07-21 13:50:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27078 states to 27078 states and 36542 transitions. [2022-07-21 13:50:48,256 INFO L78 Accepts]: Start accepts. Automaton has 27078 states and 36542 transitions. Word has length 192 [2022-07-21 13:50:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:48,257 INFO L495 AbstractCegarLoop]: Abstraction has 27078 states and 36542 transitions. [2022-07-21 13:50:48,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-21 13:50:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand 27078 states and 36542 transitions. [2022-07-21 13:50:48,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-21 13:50:48,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:48,262 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:48,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 13:50:48,262 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:48,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:48,263 INFO L85 PathProgramCache]: Analyzing trace with hash -313823116, now seen corresponding path program 1 times [2022-07-21 13:50:48,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:48,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942206677] [2022-07-21 13:50:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:48,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:50:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:50:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:50:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:50:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:50:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-07-21 13:50:48,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:48,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942206677] [2022-07-21 13:50:48,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942206677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:48,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:48,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:50:48,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654349718] [2022-07-21 13:50:48,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:48,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:50:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:50:48,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:50:48,524 INFO L87 Difference]: Start difference. First operand 27078 states and 36542 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:50:52,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:52,158 INFO L93 Difference]: Finished difference Result 28290 states and 38460 transitions. [2022-07-21 13:50:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:50:52,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2022-07-21 13:50:52,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:52,240 INFO L225 Difference]: With dead ends: 28290 [2022-07-21 13:50:52,240 INFO L226 Difference]: Without dead ends: 28288 [2022-07-21 13:50:52,250 INFO L412 NwaCegarLoop]: 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 [2022-07-21 13:50:52,250 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 2740 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 3890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:52,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 5895 Invalid, 3890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 13:50:52,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28288 states. [2022-07-21 13:50:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28288 to 27082. [2022-07-21 13:50:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27082 states, 19268 states have (on average 1.2454847415403778) internal successors, (23998), 19742 states have internal predecessors, (23998), 6244 states have call successors, (6244), 1596 states have call predecessors, (6244), 1567 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-07-21 13:50:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27082 states to 27082 states and 36545 transitions. [2022-07-21 13:50:53,524 INFO L78 Accepts]: Start accepts. Automaton has 27082 states and 36545 transitions. Word has length 197 [2022-07-21 13:50:53,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:53,524 INFO L495 AbstractCegarLoop]: Abstraction has 27082 states and 36545 transitions. [2022-07-21 13:50:53,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-21 13:50:53,525 INFO L276 IsEmpty]: Start isEmpty. Operand 27082 states and 36545 transitions. [2022-07-21 13:50:53,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-21 13:50:53,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:53,529 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:53,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 13:50:53,530 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:53,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:53,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1756609244, now seen corresponding path program 1 times [2022-07-21 13:50:53,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:53,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529079303] [2022-07-21 13:50:53,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:53,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:50:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:50:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:50:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:50:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:50:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:50:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:50:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:50:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:50:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:50:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:50:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:50:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:50:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:50:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:50:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:50:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:50:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:50:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:50:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:50:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:50:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:50:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:50:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:50:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-07-21 13:50:53,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:50:53,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529079303] [2022-07-21 13:50:53,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529079303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:50:53,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:50:53,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:50:53,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281554009] [2022-07-21 13:50:53,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:50:53,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:50:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:50:53,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:50:53,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:50:53,796 INFO L87 Difference]: Start difference. First operand 27082 states and 36545 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:50:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:50:58,337 INFO L93 Difference]: Finished difference Result 33856 states and 45576 transitions. [2022-07-21 13:50:58,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 13:50:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 202 [2022-07-21 13:50:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:50:58,558 INFO L225 Difference]: With dead ends: 33856 [2022-07-21 13:50:58,559 INFO L226 Difference]: Without dead ends: 33854 [2022-07-21 13:50:58,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:50:58,570 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2502 mSDsluCounter, 4175 mSDsCounter, 0 mSdLazyCounter, 4031 mSolverCounterSat, 1008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2752 SdHoareTripleChecker+Valid, 6722 SdHoareTripleChecker+Invalid, 5039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 4031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-21 13:50:58,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2752 Valid, 6722 Invalid, 5039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1008 Valid, 4031 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-21 13:50:58,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33854 states. [2022-07-21 13:50:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33854 to 32300. [2022-07-21 13:50:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32300 states, 22820 states have (on average 1.238299737072743) internal successors, (28258), 23327 states have internal predecessors, (28258), 7426 states have call successors, (7426), 2080 states have call predecessors, (7426), 2051 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-07-21 13:50:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32300 states to 32300 states and 43169 transitions. [2022-07-21 13:50:59,887 INFO L78 Accepts]: Start accepts. Automaton has 32300 states and 43169 transitions. Word has length 202 [2022-07-21 13:50:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:50:59,887 INFO L495 AbstractCegarLoop]: Abstraction has 32300 states and 43169 transitions. [2022-07-21 13:50:59,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:50:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 32300 states and 43169 transitions. [2022-07-21 13:50:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-21 13:50:59,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:50:59,893 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:50:59,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 13:50:59,893 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:50:59,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:50:59,894 INFO L85 PathProgramCache]: Analyzing trace with hash -964769484, now seen corresponding path program 1 times [2022-07-21 13:50:59,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:50:59,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987076275] [2022-07-21 13:50:59,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:50:59,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:50:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:51:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:51:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:51:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:51:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:51:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:51:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:51:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:51:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:51:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:51:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:51:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:51:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:51:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:51:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-07-21 13:51:00,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:00,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987076275] [2022-07-21 13:51:00,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987076275] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:00,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:00,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:00,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083610717] [2022-07-21 13:51:00,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:00,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:00,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:00,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:00,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:00,235 INFO L87 Difference]: Start difference. First operand 32300 states and 43169 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:51:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:04,292 INFO L93 Difference]: Finished difference Result 33860 states and 45579 transitions. [2022-07-21 13:51:04,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:04,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 207 [2022-07-21 13:51:04,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:04,389 INFO L225 Difference]: With dead ends: 33860 [2022-07-21 13:51:04,389 INFO L226 Difference]: Without dead ends: 33858 [2022-07-21 13:51:04,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:04,407 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 2740 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 5887 SdHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:04,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 5887 Invalid, 3888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 13:51:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33858 states. [2022-07-21 13:51:05,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33858 to 32304. [2022-07-21 13:51:05,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32304 states, 22823 states have (on average 1.2382684134425799) internal successors, (28261), 23330 states have internal predecessors, (28261), 7426 states have call successors, (7426), 2081 states have call predecessors, (7426), 2052 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-07-21 13:51:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32304 states to 32304 states and 43172 transitions. [2022-07-21 13:51:05,712 INFO L78 Accepts]: Start accepts. Automaton has 32304 states and 43172 transitions. Word has length 207 [2022-07-21 13:51:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:05,712 INFO L495 AbstractCegarLoop]: Abstraction has 32304 states and 43172 transitions. [2022-07-21 13:51:05,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 13:51:05,713 INFO L276 IsEmpty]: Start isEmpty. Operand 32304 states and 43172 transitions. [2022-07-21 13:51:05,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 13:51:05,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:05,718 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:05,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 13:51:05,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:05,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:05,719 INFO L85 PathProgramCache]: Analyzing trace with hash -910947940, now seen corresponding path program 1 times [2022-07-21 13:51:05,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:05,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156113786] [2022-07-21 13:51:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:05,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:51:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:51:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:51:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:51:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:51:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:51:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:51:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:51:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:51:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:51:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:51:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:06,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:51:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:51:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:51:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:51:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-07-21 13:51:06,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:06,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156113786] [2022-07-21 13:51:06,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156113786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:06,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:06,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:06,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260428431] [2022-07-21 13:51:06,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:06,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:06,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:06,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:06,122 INFO L87 Difference]: Start difference. First operand 32304 states and 43172 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 13:51:10,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:10,173 INFO L93 Difference]: Finished difference Result 33864 states and 45582 transitions. [2022-07-21 13:51:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:10,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2022-07-21 13:51:10,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:10,382 INFO L225 Difference]: With dead ends: 33864 [2022-07-21 13:51:10,382 INFO L226 Difference]: Without dead ends: 33862 [2022-07-21 13:51:10,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:10,397 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 2740 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:10,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 5895 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1001 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 13:51:10,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33862 states. [2022-07-21 13:51:11,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33862 to 32308. [2022-07-21 13:51:11,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32308 states, 22826 states have (on average 1.2382370980460877) internal successors, (28264), 23333 states have internal predecessors, (28264), 7426 states have call successors, (7426), 2082 states have call predecessors, (7426), 2053 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-07-21 13:51:11,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32308 states to 32308 states and 43175 transitions. [2022-07-21 13:51:11,706 INFO L78 Accepts]: Start accepts. Automaton has 32308 states and 43175 transitions. Word has length 212 [2022-07-21 13:51:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:11,707 INFO L495 AbstractCegarLoop]: Abstraction has 32308 states and 43175 transitions. [2022-07-21 13:51:11,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 13:51:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 32308 states and 43175 transitions. [2022-07-21 13:51:11,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-21 13:51:11,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:11,713 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:11,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 13:51:11,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:11,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:11,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1734074868, now seen corresponding path program 1 times [2022-07-21 13:51:11,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:11,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015228841] [2022-07-21 13:51:11,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:11,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:51:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:11,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:51:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:51:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:51:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:51:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:51:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:51:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:51:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:51:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:51:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:51:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:51:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:51:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:51:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:51:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:51:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-07-21 13:51:12,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:12,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015228841] [2022-07-21 13:51:12,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015228841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:12,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:12,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457233415] [2022-07-21 13:51:12,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:12,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:12,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:12,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:12,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:12,119 INFO L87 Difference]: Start difference. First operand 32308 states and 43175 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:51:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:16,219 INFO L93 Difference]: Finished difference Result 33868 states and 45585 transitions. [2022-07-21 13:51:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:16,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 217 [2022-07-21 13:51:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:16,334 INFO L225 Difference]: With dead ends: 33868 [2022-07-21 13:51:16,334 INFO L226 Difference]: Without dead ends: 33866 [2022-07-21 13:51:16,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:16,357 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 2740 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 1000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 3886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:16,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 5895 Invalid, 3886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 13:51:16,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33866 states. [2022-07-21 13:51:17,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33866 to 32312. [2022-07-21 13:51:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32312 states, 22829 states have (on average 1.238205790880021) internal successors, (28267), 23336 states have internal predecessors, (28267), 7426 states have call successors, (7426), 2083 states have call predecessors, (7426), 2054 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-07-21 13:51:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32312 states to 32312 states and 43178 transitions. [2022-07-21 13:51:17,783 INFO L78 Accepts]: Start accepts. Automaton has 32312 states and 43178 transitions. Word has length 217 [2022-07-21 13:51:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:17,784 INFO L495 AbstractCegarLoop]: Abstraction has 32312 states and 43178 transitions. [2022-07-21 13:51:17,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 13:51:17,784 INFO L276 IsEmpty]: Start isEmpty. Operand 32312 states and 43178 transitions. [2022-07-21 13:51:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-21 13:51:17,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:17,790 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:17,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 13:51:17,790 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:17,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:17,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1730320476, now seen corresponding path program 1 times [2022-07-21 13:51:17,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:17,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948259267] [2022-07-21 13:51:17,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:17,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:51:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:51:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:51:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:51:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:51:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:51:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:51:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:51:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:51:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:51:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:51:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:51:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:51:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:51:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:51:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:51:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 13:51:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-07-21 13:51:18,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:18,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948259267] [2022-07-21 13:51:18,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948259267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:18,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:18,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:18,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326035342] [2022-07-21 13:51:18,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:18,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:18,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:18,043 INFO L87 Difference]: Start difference. First operand 32312 states and 43178 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 13:51:22,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:22,225 INFO L93 Difference]: Finished difference Result 33872 states and 45588 transitions. [2022-07-21 13:51:22,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:22,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2022-07-21 13:51:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:22,332 INFO L225 Difference]: With dead ends: 33872 [2022-07-21 13:51:22,333 INFO L226 Difference]: Without dead ends: 33868 [2022-07-21 13:51:22,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:22,351 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 2740 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 3885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:22,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 5895 Invalid, 3885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 13:51:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33868 states. [2022-07-21 13:51:23,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33868 to 32314. [2022-07-21 13:51:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32314 states, 22831 states have (on average 1.2381411239104727) internal successors, (28268), 23337 states have internal predecessors, (28268), 7426 states have call successors, (7426), 2084 states have call predecessors, (7426), 2054 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-07-21 13:51:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32314 states to 32314 states and 43179 transitions. [2022-07-21 13:51:23,850 INFO L78 Accepts]: Start accepts. Automaton has 32314 states and 43179 transitions. Word has length 222 [2022-07-21 13:51:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:23,851 INFO L495 AbstractCegarLoop]: Abstraction has 32314 states and 43179 transitions. [2022-07-21 13:51:23,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-21 13:51:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 32314 states and 43179 transitions. [2022-07-21 13:51:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-21 13:51:23,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:23,857 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:23,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 13:51:23,858 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:23,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 119044890, now seen corresponding path program 1 times [2022-07-21 13:51:23,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:23,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494238637] [2022-07-21 13:51:23,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:23,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:23,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:23,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:51:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:51:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:51:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:51:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 13:51:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 13:51:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 13:51:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 13:51:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 13:51:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 13:51:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:51:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 13:51:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 13:51:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 13:51:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 13:51:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-21 13:51:24,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:24,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494238637] [2022-07-21 13:51:24,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494238637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:24,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:24,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:51:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008105500] [2022-07-21 13:51:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:24,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:51:24,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:24,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:51:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:51:24,145 INFO L87 Difference]: Start difference. First operand 32314 states and 43179 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 13:51:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:32,789 INFO L93 Difference]: Finished difference Result 80816 states and 108839 transitions. [2022-07-21 13:51:32,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 13:51:32,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 229 [2022-07-21 13:51:32,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:32,955 INFO L225 Difference]: With dead ends: 80816 [2022-07-21 13:51:32,955 INFO L226 Difference]: Without dead ends: 48598 [2022-07-21 13:51:33,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:51:33,026 INFO L413 NwaCegarLoop]: 3859 mSDtfsCounter, 3254 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 3468 mSolverCounterSat, 2269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3483 SdHoareTripleChecker+Valid, 7150 SdHoareTripleChecker+Invalid, 5737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2269 IncrementalHoareTripleChecker+Valid, 3468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:33,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3483 Valid, 7150 Invalid, 5737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2269 Valid, 3468 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-07-21 13:51:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48598 states. [2022-07-21 13:51:35,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48598 to 43806. [2022-07-21 13:51:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43806 states, 31044 states have (on average 1.2385646179616028) internal successors, (38450), 31716 states have internal predecessors, (38450), 9964 states have call successors, (9964), 2832 states have call predecessors, (9964), 2795 states have return successors, (10026), 9803 states have call predecessors, (10026), 9960 states have call successors, (10026) [2022-07-21 13:51:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43806 states to 43806 states and 58440 transitions. [2022-07-21 13:51:35,264 INFO L78 Accepts]: Start accepts. Automaton has 43806 states and 58440 transitions. Word has length 229 [2022-07-21 13:51:35,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:35,265 INFO L495 AbstractCegarLoop]: Abstraction has 43806 states and 58440 transitions. [2022-07-21 13:51:35,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-21 13:51:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 43806 states and 58440 transitions. [2022-07-21 13:51:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-21 13:51:35,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:35,269 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:35,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 13:51:35,269 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:35,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:35,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1766671692, now seen corresponding path program 1 times [2022-07-21 13:51:35,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:35,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963714274] [2022-07-21 13:51:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:35,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:51:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:51:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:51:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:51:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:51:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:51:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 13:51:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:51:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:51:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 13:51:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:51:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 13:51:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 13:51:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 13:51:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:51:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:51:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 13:51:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 13:51:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 13:51:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2022-07-21 13:51:35,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:35,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963714274] [2022-07-21 13:51:35,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963714274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:35,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:35,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:51:35,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723049073] [2022-07-21 13:51:35,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:35,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:51:35,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:35,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:51:35,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:51:35,550 INFO L87 Difference]: Start difference. First operand 43806 states and 58440 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 13:51:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:51:40,226 INFO L93 Difference]: Finished difference Result 45966 states and 61742 transitions. [2022-07-21 13:51:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:51:40,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 227 [2022-07-21 13:51:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:51:40,346 INFO L225 Difference]: With dead ends: 45966 [2022-07-21 13:51:40,346 INFO L226 Difference]: Without dead ends: 45606 [2022-07-21 13:51:40,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:51:40,366 INFO L413 NwaCegarLoop]: 2333 mSDtfsCounter, 2734 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 2881 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 3879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:51:40,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2971 Valid, 5892 Invalid, 3879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2881 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 13:51:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45606 states. [2022-07-21 13:51:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45606 to 43446. [2022-07-21 13:51:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43446 states, 30800 states have (on average 1.2383116883116883) internal successors, (38140), 31436 states have internal predecessors, (38140), 9868 states have call successors, (9868), 2803 states have call predecessors, (9868), 2776 states have return successors, (9934), 9752 states have call predecessors, (9934), 9868 states have call successors, (9934) [2022-07-21 13:51:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43446 states to 43446 states and 57942 transitions. [2022-07-21 13:51:42,439 INFO L78 Accepts]: Start accepts. Automaton has 43446 states and 57942 transitions. Word has length 227 [2022-07-21 13:51:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:51:42,440 INFO L495 AbstractCegarLoop]: Abstraction has 43446 states and 57942 transitions. [2022-07-21 13:51:42,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 13:51:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 43446 states and 57942 transitions. [2022-07-21 13:51:42,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-07-21 13:51:42,446 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:51:42,446 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:51:42,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 13:51:42,447 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:51:42,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:51:42,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1480452909, now seen corresponding path program 1 times [2022-07-21 13:51:42,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:51:42,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841681351] [2022-07-21 13:51:42,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:51:42,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:51:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 13:51:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 13:51:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 13:51:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:51:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:51:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 13:51:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 13:51:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 13:51:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 13:51:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 13:51:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:51:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 13:51:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 13:51:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 13:51:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 13:51:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 13:51:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 13:51:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:51:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:51:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-21 13:51:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:51:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:51:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 13:51:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 13:51:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 13:51:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 13:51:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:51:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 13:51:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 13:51:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 13:51:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 13:51:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 13:51:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:51:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-21 13:51:42,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:51:42,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841681351] [2022-07-21 13:51:42,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841681351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:51:42,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:51:42,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:51:42,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117276557] [2022-07-21 13:51:42,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:51:42,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:51:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:51:42,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:51:42,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:51:42,821 INFO L87 Difference]: Start difference. First operand 43446 states and 57942 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33)