./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-wireless-cw1200-cw1200_wlan_spi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.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 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 08:09:04,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 08:09:04,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 08:09:04,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 08:09:04,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 08:09:04,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 08:09:04,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 08:09:04,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 08:09:04,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 08:09:04,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 08:09:04,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 08:09:04,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 08:09:04,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 08:09:04,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 08:09:04,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 08:09:04,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 08:09:04,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 08:09:04,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 08:09:04,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 08:09:04,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 08:09:04,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 08:09:04,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 08:09:04,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 08:09:04,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 08:09:04,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 08:09:04,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 08:09:04,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 08:09:04,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 08:09:04,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 08:09:04,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 08:09:04,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 08:09:04,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 08:09:04,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 08:09:04,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 08:09:04,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 08:09:04,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 08:09:04,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 08:09:04,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 08:09:04,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 08:09:04,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 08:09:04,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 08:09:04,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 08:09:04,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 08:09:04,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 08:09:04,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 08:09:04,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 08:09:04,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 08:09:04,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 08:09:04,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 08:09:04,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 08:09:04,860 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 08:09:04,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 08:09:04,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 08:09:04,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 08:09:04,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 08:09:04,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 08:09:04,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 08:09:04,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 08:09:04,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 08:09:04,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 08:09:04,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 08:09:04,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 08:09:04,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 08:09:04,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:09:04,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 08:09:04,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 08:09:04,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 08:09:04,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 08:09:04,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 08:09:04,863 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 08:09:04,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 08:09:04,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 08:09:04,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 08:09:04,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2021-11-17 08:09:05,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 08:09:05,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 08:09:05,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 08:09:05,105 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 08:09:05,105 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 08:09:05,106 INFO L432 ainManager$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-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-17 08:09:05,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cffd642a0/777ab06f8bb042eca7c8637cded06f88/FLAGcd199fb38 [2021-11-17 08:09:05,732 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 08:09:05,732 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-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-17 08:09:05,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cffd642a0/777ab06f8bb042eca7c8637cded06f88/FLAGcd199fb38 [2021-11-17 08:09:05,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cffd642a0/777ab06f8bb042eca7c8637cded06f88 [2021-11-17 08:09:05,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 08:09:05,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 08:09:05,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 08:09:05,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 08:09:05,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 08:09:05,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:09:05" (1/1) ... [2021-11-17 08:09:05,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b72dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:05, skipping insertion in model container [2021-11-17 08:09:05,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:09:05" (1/1) ... [2021-11-17 08:09:05,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 08:09:06,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 08:09:07,277 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2021-11-17 08:09:07,280 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2021-11-17 08:09:07,283 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2021-11-17 08:09:07,284 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2021-11-17 08:09:07,288 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:09:07,300 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 08:09:07,507 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2021-11-17 08:09:07,508 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2021-11-17 08:09:07,508 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2021-11-17 08:09:07,508 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-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2021-11-17 08:09:07,510 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:09:07,591 INFO L208 MainTranslator]: Completed translation [2021-11-17 08:09:07,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07 WrapperNode [2021-11-17 08:09:07,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 08:09:07,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 08:09:07,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 08:09:07,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 08:09:07,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,738 INFO L137 Inliner]: procedures = 325, calls = 928, calls flagged for inlining = 152, calls inlined = 139, statements flattened = 2698 [2021-11-17 08:09:07,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 08:09:07,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 08:09:07,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 08:09:07,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 08:09:07,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 08:09:07,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 08:09:07,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 08:09:07,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 08:09:07,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (1/1) ... [2021-11-17 08:09:07,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:09:07,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 08:09:07,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 08:09:07,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 08:09:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 08:09:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 08:09:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-17 08:09:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 08:09:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 08:09:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 08:09:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 08:09:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 08:09:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 08:09:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 08:09:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 08:09:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2021-11-17 08:09:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2021-11-17 08:09:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-11-17 08:09:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-11-17 08:09:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 08:09:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 08:09:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2021-11-17 08:09:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2021-11-17 08:09:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 08:09:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 08:09:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2021-11-17 08:09:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2021-11-17 08:09:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2021-11-17 08:09:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2021-11-17 08:09:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 08:09:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 08:09:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-17 08:09:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-17 08:09:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 08:09:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2021-11-17 08:09:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2021-11-17 08:09:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 08:09:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 08:09:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 08:09:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 08:09:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 08:09:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2021-11-17 08:09:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2021-11-17 08:09:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 08:09:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 08:09:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-11-17 08:09:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-11-17 08:09:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-17 08:09:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-17 08:09:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 08:09:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 08:09:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 08:09:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 08:09:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 08:09:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 08:09:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2021-11-17 08:09:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2021-11-17 08:09:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 08:09:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 08:09:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 08:09:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-11-17 08:09:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-11-17 08:09:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 08:09:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 08:09:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 08:09:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 08:09:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 08:09:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2021-11-17 08:09:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2021-11-17 08:09:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 08:09:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 08:09:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-11-17 08:09:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-11-17 08:09:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2021-11-17 08:09:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2021-11-17 08:09:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 08:09:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 08:09:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2021-11-17 08:09:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2021-11-17 08:09:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 08:09:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 08:09:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 08:09:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 08:09:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 08:09:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-17 08:09:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-17 08:09:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 08:09:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 08:09:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 08:09:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 08:09:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 08:09:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-11-17 08:09:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-11-17 08:09:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:09:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:09:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:09:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:09:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-11-17 08:09:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-11-17 08:09:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 08:09:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 08:09:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 08:09:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 08:09:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2021-11-17 08:09:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2021-11-17 08:09:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 08:09:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 08:09:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2021-11-17 08:09:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2021-11-17 08:09:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2021-11-17 08:09:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2021-11-17 08:09:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2021-11-17 08:09:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2021-11-17 08:09:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 08:09:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 08:09:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 08:09:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 08:09:07,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 08:09:08,381 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 08:09:08,395 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 08:09:08,461 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 08:09:13,532 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 08:09:13,674 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 08:09:13,682 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 08:09:13,683 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-17 08:09:13,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:09:13 BoogieIcfgContainer [2021-11-17 08:09:13,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 08:09:13,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 08:09:13,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 08:09:13,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 08:09:13,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 08:09:05" (1/3) ... [2021-11-17 08:09:13,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257df270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:09:13, skipping insertion in model container [2021-11-17 08:09:13,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:09:07" (2/3) ... [2021-11-17 08:09:13,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257df270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:09:13, skipping insertion in model container [2021-11-17 08:09:13,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:09:13" (3/3) ... [2021-11-17 08:09:13,690 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2021-11-17 08:09:13,693 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 08:09:13,693 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 08:09:13,723 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 08:09:13,727 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 08:09:13,727 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 08:09:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 1044 states, 748 states have (on average 1.2807486631016043) internal successors, (958), 758 states have internal predecessors, (958), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) [2021-11-17 08:09:13,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-17 08:09:13,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:13,762 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:13,763 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:09:13,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:13,766 INFO L85 PathProgramCache]: Analyzing trace with hash 409785378, now seen corresponding path program 1 times [2021-11-17 08:09:13,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:13,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888310920] [2021-11-17 08:09:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:13,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 08:09:14,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:14,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888310920] [2021-11-17 08:09:14,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888310920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:14,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:14,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:09:14,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859799786] [2021-11-17 08:09:14,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:14,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:09:14,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:14,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:09:14,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:09:14,411 INFO L87 Difference]: Start difference. First operand has 1044 states, 748 states have (on average 1.2807486631016043) internal successors, (958), 758 states have internal predecessors, (958), 246 states have call successors, (246), 50 states have call predecessors, (246), 49 states have return successors, (237), 236 states have call predecessors, (237), 237 states have call successors, (237) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 08:09:17,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:19,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:09:19,996 INFO L93 Difference]: Finished difference Result 2883 states and 4080 transitions. [2021-11-17 08:09:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:09:19,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2021-11-17 08:09:19,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:09:20,017 INFO L225 Difference]: With dead ends: 2883 [2021-11-17 08:09:20,018 INFO L226 Difference]: Without dead ends: 1850 [2021-11-17 08:09:20,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:09:20,060 INFO L933 BasicCegarLoop]: 1562 mSDtfsCounter, 1222 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 562 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:09:20,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 3387 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 801 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2021-11-17 08:09:20,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-11-17 08:09:20,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1781. [2021-11-17 08:09:20,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1283 states have (on average 1.249415432579891) internal successors, (1603), 1310 states have internal predecessors, (1603), 402 states have call successors, (402), 94 states have call predecessors, (402), 93 states have return successors, (398), 392 states have call predecessors, (398), 398 states have call successors, (398) [2021-11-17 08:09:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2403 transitions. [2021-11-17 08:09:20,173 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2403 transitions. Word has length 151 [2021-11-17 08:09:20,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:09:20,173 INFO L470 AbstractCegarLoop]: Abstraction has 1781 states and 2403 transitions. [2021-11-17 08:09:20,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 08:09:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2403 transitions. [2021-11-17 08:09:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-17 08:09:20,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:20,193 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:20,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 08:09:20,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:09:20,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash 130266866, now seen corresponding path program 1 times [2021-11-17 08:09:20,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:20,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221521110] [2021-11-17 08:09:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:20,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 08:09:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 08:09:20,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:20,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221521110] [2021-11-17 08:09:20,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221521110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:20,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:20,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:09:20,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378941240] [2021-11-17 08:09:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:20,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:09:20,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:20,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:09:20,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:09:20,442 INFO L87 Difference]: Start difference. First operand 1781 states and 2403 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 08:09:22,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:24,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:09:25,767 INFO L93 Difference]: Finished difference Result 5226 states and 7089 transitions. [2021-11-17 08:09:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:09:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2021-11-17 08:09:25,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:09:25,788 INFO L225 Difference]: With dead ends: 5226 [2021-11-17 08:09:25,788 INFO L226 Difference]: Without dead ends: 3472 [2021-11-17 08:09:25,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:09:25,794 INFO L933 BasicCegarLoop]: 1498 mSDtfsCounter, 1436 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 510 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-17 08:09:25,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1617 Valid, 3343 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 679 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2021-11-17 08:09:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2021-11-17 08:09:25,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 3384. [2021-11-17 08:09:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 2458 states have (on average 1.2493897477624085) internal successors, (3071), 2504 states have internal predecessors, (3071), 740 states have call successors, (740), 184 states have call predecessors, (740), 183 states have return successors, (736), 727 states have call predecessors, (736), 736 states have call successors, (736) [2021-11-17 08:09:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 4547 transitions. [2021-11-17 08:09:25,914 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 4547 transitions. Word has length 151 [2021-11-17 08:09:25,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:09:25,916 INFO L470 AbstractCegarLoop]: Abstraction has 3384 states and 4547 transitions. [2021-11-17 08:09:25,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 08:09:25,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 4547 transitions. [2021-11-17 08:09:25,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-17 08:09:25,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:25,921 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:25,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 08:09:25,922 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:09:25,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:25,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1091781446, now seen corresponding path program 1 times [2021-11-17 08:09:25,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:25,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495956078] [2021-11-17 08:09:25,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:25,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 08:09:26,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:26,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495956078] [2021-11-17 08:09:26,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495956078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:26,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:26,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:09:26,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962299045] [2021-11-17 08:09:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:26,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:09:26,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:26,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:09:26,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:09:26,227 INFO L87 Difference]: Start difference. First operand 3384 states and 4547 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 08:09:29,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:31,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:09:31,703 INFO L93 Difference]: Finished difference Result 8213 states and 11075 transitions. [2021-11-17 08:09:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:09:31,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 157 [2021-11-17 08:09:31,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:09:31,769 INFO L225 Difference]: With dead ends: 8213 [2021-11-17 08:09:31,769 INFO L226 Difference]: Without dead ends: 4856 [2021-11-17 08:09:31,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:09:31,780 INFO L933 BasicCegarLoop]: 1498 mSDtfsCounter, 1357 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 555 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:09:31,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1531 Valid, 3362 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 691 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2021-11-17 08:09:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2021-11-17 08:09:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4701. [2021-11-17 08:09:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4701 states, 3407 states have (on average 1.2418550044027004) internal successors, (4231), 3482 states have internal predecessors, (4231), 1026 states have call successors, (1026), 266 states have call predecessors, (1026), 265 states have return successors, (1022), 1000 states have call predecessors, (1022), 1022 states have call successors, (1022) [2021-11-17 08:09:31,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 6279 transitions. [2021-11-17 08:09:31,927 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 6279 transitions. Word has length 157 [2021-11-17 08:09:31,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:09:31,928 INFO L470 AbstractCegarLoop]: Abstraction has 4701 states and 6279 transitions. [2021-11-17 08:09:31,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-17 08:09:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 6279 transitions. [2021-11-17 08:09:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-17 08:09:31,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:31,931 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:31,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 08:09:31,932 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:09:31,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash 857121363, now seen corresponding path program 1 times [2021-11-17 08:09:31,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:31,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115701708] [2021-11-17 08:09:31,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:31,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 08:09:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:09:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-17 08:09:32,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:32,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115701708] [2021-11-17 08:09:32,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115701708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:32,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:32,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:09:32,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051476932] [2021-11-17 08:09:32,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:32,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:09:32,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:32,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:09:32,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:09:32,165 INFO L87 Difference]: Start difference. First operand 4701 states and 6279 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 08:09:34,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:36,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:37,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:09:37,690 INFO L93 Difference]: Finished difference Result 13849 states and 18850 transitions. [2021-11-17 08:09:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:09:37,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 163 [2021-11-17 08:09:37,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:09:37,736 INFO L225 Difference]: With dead ends: 13849 [2021-11-17 08:09:37,736 INFO L226 Difference]: Without dead ends: 9175 [2021-11-17 08:09:37,754 INFO L932 BasicCegarLoop]: 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 [2021-11-17 08:09:37,755 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 1507 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 592 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:09:37,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1670 Valid, 3478 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 672 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2021-11-17 08:09:37,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9175 states. [2021-11-17 08:09:38,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9175 to 9006. [2021-11-17 08:09:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 6532 states have (on average 1.2438763012859768) internal successors, (8125), 6698 states have internal predecessors, (8125), 1958 states have call successors, (1958), 508 states have call predecessors, (1958), 513 states have return successors, (2302), 1877 states have call predecessors, (2302), 1954 states have call successors, (2302) [2021-11-17 08:09:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 12385 transitions. [2021-11-17 08:09:38,101 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 12385 transitions. Word has length 163 [2021-11-17 08:09:38,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:09:38,102 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 12385 transitions. [2021-11-17 08:09:38,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 08:09:38,103 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 12385 transitions. [2021-11-17 08:09:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-17 08:09:38,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:38,105 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:38,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 08:09:38,106 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:09:38,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:38,106 INFO L85 PathProgramCache]: Analyzing trace with hash 377555936, now seen corresponding path program 1 times [2021-11-17 08:09:38,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:38,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918975535] [2021-11-17 08:09:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:38,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 08:09:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 08:09:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2021-11-17 08:09:38,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:38,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918975535] [2021-11-17 08:09:38,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918975535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:38,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:38,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:09:38,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369149729] [2021-11-17 08:09:38,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:38,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:09:38,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:09:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:09:38,297 INFO L87 Difference]: Start difference. First operand 9006 states and 12385 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 08:09:41,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:43,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:09:43,840 INFO L93 Difference]: Finished difference Result 22349 states and 30540 transitions. [2021-11-17 08:09:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:09:43,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2021-11-17 08:09:43,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:09:43,901 INFO L225 Difference]: With dead ends: 22349 [2021-11-17 08:09:43,901 INFO L226 Difference]: Without dead ends: 13370 [2021-11-17 08:09:43,927 INFO L932 BasicCegarLoop]: 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 [2021-11-17 08:09:43,929 INFO L933 BasicCegarLoop]: 1747 mSDtfsCounter, 1384 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 527 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 3788 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:09:43,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1563 Valid, 3788 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 710 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2021-11-17 08:09:43,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13370 states. [2021-11-17 08:09:44,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13370 to 13133. [2021-11-17 08:09:44,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13133 states, 9527 states have (on average 1.2334417969980056) internal successors, (11751), 9793 states have internal predecessors, (11751), 2822 states have call successors, (2822), 779 states have call predecessors, (2822), 781 states have return successors, (3246), 2677 states have call predecessors, (3246), 2818 states have call successors, (3246) [2021-11-17 08:09:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13133 states to 13133 states and 17819 transitions. [2021-11-17 08:09:44,350 INFO L78 Accepts]: Start accepts. Automaton has 13133 states and 17819 transitions. Word has length 175 [2021-11-17 08:09:44,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:09:44,351 INFO L470 AbstractCegarLoop]: Abstraction has 13133 states and 17819 transitions. [2021-11-17 08:09:44,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-17 08:09:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 13133 states and 17819 transitions. [2021-11-17 08:09:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 08:09:44,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:44,354 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:44,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 08:09:44,354 INFO L402 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)] === [2021-11-17 08:09:44,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:44,355 INFO L85 PathProgramCache]: Analyzing trace with hash 72197767, now seen corresponding path program 1 times [2021-11-17 08:09:44,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:44,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155438058] [2021-11-17 08:09:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:44,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:09:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:09:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:09:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:09:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:09:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:09:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:09:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-17 08:09:44,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:44,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155438058] [2021-11-17 08:09:44,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155438058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:44,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:44,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:09:44,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005188436] [2021-11-17 08:09:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:44,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:09:44,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:44,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:09:44,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:09:44,599 INFO L87 Difference]: Start difference. First operand 13133 states and 17819 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-17 08:09:47,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:49,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:09:50,002 INFO L93 Difference]: Finished difference Result 36706 states and 49903 transitions. [2021-11-17 08:09:50,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:09:50,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2021-11-17 08:09:50,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:09:50,154 INFO L225 Difference]: With dead ends: 36706 [2021-11-17 08:09:50,154 INFO L226 Difference]: Without dead ends: 24535 [2021-11-17 08:09:50,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:09:50,183 INFO L933 BasicCegarLoop]: 2498 mSDtfsCounter, 1243 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 324 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 5010 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:09:50,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 5010 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 706 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2021-11-17 08:09:50,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2021-11-17 08:09:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 24159. [2021-11-17 08:09:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24159 states, 17613 states have (on average 1.2335774711860557) internal successors, (21727), 18045 states have internal predecessors, (21727), 5106 states have call successors, (5106), 1431 states have call predecessors, (5106), 1437 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2021-11-17 08:09:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24159 states to 24159 states and 32787 transitions. [2021-11-17 08:09:51,000 INFO L78 Accepts]: Start accepts. Automaton has 24159 states and 32787 transitions. Word has length 209 [2021-11-17 08:09:51,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:09:51,000 INFO L470 AbstractCegarLoop]: Abstraction has 24159 states and 32787 transitions. [2021-11-17 08:09:51,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-17 08:09:51,001 INFO L276 IsEmpty]: Start isEmpty. Operand 24159 states and 32787 transitions. [2021-11-17 08:09:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-17 08:09:51,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:51,004 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:51,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 08:09:51,004 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:09:51,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1995425801, now seen corresponding path program 1 times [2021-11-17 08:09:51,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:51,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471969328] [2021-11-17 08:09:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:51,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:09:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:09:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:09:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:09:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:09:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:09:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:09:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-17 08:09:51,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:51,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471969328] [2021-11-17 08:09:51,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471969328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:51,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:51,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:09:51,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528093226] [2021-11-17 08:09:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:51,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:09:51,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:51,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:09:51,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:09:51,303 INFO L87 Difference]: Start difference. First operand 24159 states and 32787 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 08:09:54,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:56,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:09:56,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:09:56,672 INFO L93 Difference]: Finished difference Result 24537 states and 33209 transitions. [2021-11-17 08:09:56,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:09:56,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 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 209 [2021-11-17 08:09:56,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:09:56,748 INFO L225 Difference]: With dead ends: 24537 [2021-11-17 08:09:56,749 INFO L226 Difference]: Without dead ends: 24535 [2021-11-17 08:09:56,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:09:56,763 INFO L933 BasicCegarLoop]: 1326 mSDtfsCounter, 1328 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 353 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:09:56,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 4364 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2021-11-17 08:09:56,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2021-11-17 08:09:57,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 24163. [2021-11-17 08:09:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24163 states, 17616 states have (on average 1.233537693006358) internal successors, (21730), 18048 states have internal predecessors, (21730), 5106 states have call successors, (5106), 1432 states have call predecessors, (5106), 1438 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2021-11-17 08:09:57,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24163 states to 24163 states and 32790 transitions. [2021-11-17 08:09:57,469 INFO L78 Accepts]: Start accepts. Automaton has 24163 states and 32790 transitions. Word has length 209 [2021-11-17 08:09:57,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:09:57,469 INFO L470 AbstractCegarLoop]: Abstraction has 24163 states and 32790 transitions. [2021-11-17 08:09:57,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 08:09:57,470 INFO L276 IsEmpty]: Start isEmpty. Operand 24163 states and 32790 transitions. [2021-11-17 08:09:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 08:09:57,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:09:57,473 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:09:57,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 08:09:57,473 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:09:57,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:09:57,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1036278967, now seen corresponding path program 1 times [2021-11-17 08:09:57,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:09:57,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622195310] [2021-11-17 08:09:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:09:57,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:09:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:09:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:09:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:09:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:09:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:09:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:09:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:09:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:09:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:09:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:09:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:09:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:09:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:09:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:09:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:09:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:09:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:09:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:09:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:09:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:09:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:09:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:09:57,880 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-11-17 08:09:57,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:09:57,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622195310] [2021-11-17 08:09:57,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622195310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:09:57,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:09:57,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:09:57,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129938471] [2021-11-17 08:09:57,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:09:57,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:09:57,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:09:57,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:09:57,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:09:57,883 INFO L87 Difference]: Start difference. First operand 24163 states and 32790 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 08:10:00,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:02,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:03,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:03,046 INFO L93 Difference]: Finished difference Result 24541 states and 33212 transitions. [2021-11-17 08:10:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:10:03,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 214 [2021-11-17 08:10:03,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:03,150 INFO L225 Difference]: With dead ends: 24541 [2021-11-17 08:10:03,151 INFO L226 Difference]: Without dead ends: 24539 [2021-11-17 08:10:03,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:10:03,160 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 352 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:03,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 08:10:03,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24539 states. [2021-11-17 08:10:04,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24539 to 24167. [2021-11-17 08:10:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24167 states, 17619 states have (on average 1.2334979283727794) internal successors, (21733), 18051 states have internal predecessors, (21733), 5106 states have call successors, (5106), 1433 states have call predecessors, (5106), 1439 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2021-11-17 08:10:04,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 32793 transitions. [2021-11-17 08:10:04,276 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 32793 transitions. Word has length 214 [2021-11-17 08:10:04,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:10:04,276 INFO L470 AbstractCegarLoop]: Abstraction has 24167 states and 32793 transitions. [2021-11-17 08:10:04,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 08:10:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 32793 transitions. [2021-11-17 08:10:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-17 08:10:04,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:10:04,280 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:10:04,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 08:10:04,281 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:10:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:10:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1370791049, now seen corresponding path program 1 times [2021-11-17 08:10:04,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:10:04,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091871780] [2021-11-17 08:10:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:10:04,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:10:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:10:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:10:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:10:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:10:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:10:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:10:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:10:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:10:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:10:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:10:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:10:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:10:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:10:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:10:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:10:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:10:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:10:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:10:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:10:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:10:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-11-17 08:10:04,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:10:04,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091871780] [2021-11-17 08:10:04,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091871780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:10:04,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:10:04,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:10:04,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824150796] [2021-11-17 08:10:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:10:04,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:10:04,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:10:04,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:10:04,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:10:04,568 INFO L87 Difference]: Start difference. First operand 24167 states and 32793 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:07,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:09,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:09,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:09,807 INFO L93 Difference]: Finished difference Result 24545 states and 33215 transitions. [2021-11-17 08:10:09,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:10:09,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 219 [2021-11-17 08:10:09,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:09,879 INFO L225 Difference]: With dead ends: 24545 [2021-11-17 08:10:09,880 INFO L226 Difference]: Without dead ends: 24543 [2021-11-17 08:10:09,894 INFO L932 BasicCegarLoop]: 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 [2021-11-17 08:10:09,896 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 351 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:09,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 08:10:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24543 states. [2021-11-17 08:10:10,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24543 to 24171. [2021-11-17 08:10:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24171 states, 17622 states have (on average 1.233458177278402) internal successors, (21736), 18054 states have internal predecessors, (21736), 5106 states have call successors, (5106), 1434 states have call predecessors, (5106), 1440 states have return successors, (5954), 4903 states have call predecessors, (5954), 5102 states have call successors, (5954) [2021-11-17 08:10:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24171 states to 24171 states and 32796 transitions. [2021-11-17 08:10:10,694 INFO L78 Accepts]: Start accepts. Automaton has 24171 states and 32796 transitions. Word has length 219 [2021-11-17 08:10:10,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:10:10,694 INFO L470 AbstractCegarLoop]: Abstraction has 24171 states and 32796 transitions. [2021-11-17 08:10:10,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 24171 states and 32796 transitions. [2021-11-17 08:10:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-17 08:10:10,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:10:10,699 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 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] [2021-11-17 08:10:10,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 08:10:10,699 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:10:10,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:10:10,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1845166869, now seen corresponding path program 1 times [2021-11-17 08:10:10,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:10:10,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321719057] [2021-11-17 08:10:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:10:10,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:10:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:10:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:10:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:10:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:10:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:10:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:10:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:10:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:10:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:10:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:10:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:10:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:10:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:10:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:10:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:10:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:10:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:10:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:10:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 08:10:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:10:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:10:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:10:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-17 08:10:10,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:10:10,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321719057] [2021-11-17 08:10:10,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321719057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:10:10,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:10:10,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:10:10,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583724452] [2021-11-17 08:10:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:10:10,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:10:10,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:10:10,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:10:10,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:10:10,898 INFO L87 Difference]: Start difference. First operand 24171 states and 32796 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 08:10:14,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:16,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:19,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:21,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:22,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:22,146 INFO L93 Difference]: Finished difference Result 59004 states and 80118 transitions. [2021-11-17 08:10:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 08:10:22,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 234 [2021-11-17 08:10:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:22,267 INFO L225 Difference]: With dead ends: 59004 [2021-11-17 08:10:22,268 INFO L226 Difference]: Without dead ends: 35795 [2021-11-17 08:10:22,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 08:10:22,332 INFO L933 BasicCegarLoop]: 2372 mSDtfsCounter, 1511 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 946 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 5253 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:22,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1696 Valid, 5253 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [946 Valid, 1751 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2021-11-17 08:10:22,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35795 states. [2021-11-17 08:10:23,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35795 to 35213. [2021-11-17 08:10:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35213 states, 25724 states have (on average 1.2334007152853366) internal successors, (31728), 26322 states have internal predecessors, (31728), 7390 states have call successors, (7390), 2086 states have call predecessors, (7390), 2096 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:10:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35213 states to 35213 states and 47780 transitions. [2021-11-17 08:10:23,624 INFO L78 Accepts]: Start accepts. Automaton has 35213 states and 47780 transitions. Word has length 234 [2021-11-17 08:10:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:10:23,626 INFO L470 AbstractCegarLoop]: Abstraction has 35213 states and 47780 transitions. [2021-11-17 08:10:23,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-17 08:10:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 35213 states and 47780 transitions. [2021-11-17 08:10:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-17 08:10:23,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:10:23,630 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:10:23,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 08:10:23,631 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:10:23,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:10:23,631 INFO L85 PathProgramCache]: Analyzing trace with hash 462063543, now seen corresponding path program 1 times [2021-11-17 08:10:23,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:10:23,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069391682] [2021-11-17 08:10:23,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:10:23,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:10:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:10:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:10:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:10:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:10:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:10:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:10:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:10:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:10:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:10:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:10:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:10:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:10:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:10:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:10:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:10:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:10:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:10:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:10:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:10:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:10:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:10:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2021-11-17 08:10:23,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:10:23,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069391682] [2021-11-17 08:10:23,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069391682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:10:23,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:10:23,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:10:23,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697896370] [2021-11-17 08:10:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:10:23,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:10:23,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:10:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:10:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:10:23,895 INFO L87 Difference]: Start difference. First operand 35213 states and 47780 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:26,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:28,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:29,601 INFO L93 Difference]: Finished difference Result 35767 states and 48394 transitions. [2021-11-17 08:10:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:10:29,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 224 [2021-11-17 08:10:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:29,712 INFO L225 Difference]: With dead ends: 35767 [2021-11-17 08:10:29,712 INFO L226 Difference]: Without dead ends: 35765 [2021-11-17 08:10:29,732 INFO L932 BasicCegarLoop]: 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 [2021-11-17 08:10:29,733 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 350 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:29,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 08:10:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35765 states. [2021-11-17 08:10:30,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35765 to 35217. [2021-11-17 08:10:30,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35217 states, 25727 states have (on average 1.2333734986589964) internal successors, (31731), 26325 states have internal predecessors, (31731), 7390 states have call successors, (7390), 2087 states have call predecessors, (7390), 2097 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:10:30,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35217 states to 35217 states and 47783 transitions. [2021-11-17 08:10:30,971 INFO L78 Accepts]: Start accepts. Automaton has 35217 states and 47783 transitions. Word has length 224 [2021-11-17 08:10:30,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:10:30,972 INFO L470 AbstractCegarLoop]: Abstraction has 35217 states and 47783 transitions. [2021-11-17 08:10:30,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:30,972 INFO L276 IsEmpty]: Start isEmpty. Operand 35217 states and 47783 transitions. [2021-11-17 08:10:30,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-17 08:10:30,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:10:30,976 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:10:30,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 08:10:30,976 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:10:30,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:10:30,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2142535415, now seen corresponding path program 1 times [2021-11-17 08:10:30,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:10:30,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639676441] [2021-11-17 08:10:30,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:10:30,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:10:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:10:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:10:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:10:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:10:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:10:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:10:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:10:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:10:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:10:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:10:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:10:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:10:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:10:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:10:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:10:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:10:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:10:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:10:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:10:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:10:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:10:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:10:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-11-17 08:10:31,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:10:31,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639676441] [2021-11-17 08:10:31,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639676441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:10:31,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:10:31,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:10:31,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076515266] [2021-11-17 08:10:31,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:10:31,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:10:31,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:10:31,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:10:31,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:10:31,269 INFO L87 Difference]: Start difference. First operand 35217 states and 47783 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:34,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:36,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:37,014 INFO L93 Difference]: Finished difference Result 35771 states and 48397 transitions. [2021-11-17 08:10:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:10:37,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 229 [2021-11-17 08:10:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:37,124 INFO L225 Difference]: With dead ends: 35771 [2021-11-17 08:10:37,124 INFO L226 Difference]: Without dead ends: 35769 [2021-11-17 08:10:37,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:10:37,145 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 349 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:37,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 08:10:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35769 states. [2021-11-17 08:10:38,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35769 to 35221. [2021-11-17 08:10:38,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35221 states, 25730 states have (on average 1.2333462883793238) internal successors, (31734), 26328 states have internal predecessors, (31734), 7390 states have call successors, (7390), 2088 states have call predecessors, (7390), 2098 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:10:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35221 states to 35221 states and 47786 transitions. [2021-11-17 08:10:38,422 INFO L78 Accepts]: Start accepts. Automaton has 35221 states and 47786 transitions. Word has length 229 [2021-11-17 08:10:38,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:10:38,423 INFO L470 AbstractCegarLoop]: Abstraction has 35221 states and 47786 transitions. [2021-11-17 08:10:38,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:38,423 INFO L276 IsEmpty]: Start isEmpty. Operand 35221 states and 47786 transitions. [2021-11-17 08:10:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-17 08:10:38,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:10:38,427 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:10:38,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 08:10:38,427 INFO L402 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)] === [2021-11-17 08:10:38,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:10:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2042060105, now seen corresponding path program 1 times [2021-11-17 08:10:38,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:10:38,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858380312] [2021-11-17 08:10:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:10:38,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:10:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:10:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:10:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:10:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:10:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:10:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:10:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:10:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:10:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:10:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:10:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:10:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:10:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:10:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:10:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:10:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:10:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:10:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:10:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:10:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:10:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:10:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:10:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:10:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2021-11-17 08:10:38,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:10:38,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858380312] [2021-11-17 08:10:38,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858380312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:10:38,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:10:38,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:10:38,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49592947] [2021-11-17 08:10:38,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:10:38,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:10:38,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:10:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:10:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:10:38,663 INFO L87 Difference]: Start difference. First operand 35221 states and 47786 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:41,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:43,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:44,220 INFO L93 Difference]: Finished difference Result 35775 states and 48400 transitions. [2021-11-17 08:10:44,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:10:44,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 234 [2021-11-17 08:10:44,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:44,327 INFO L225 Difference]: With dead ends: 35775 [2021-11-17 08:10:44,327 INFO L226 Difference]: Without dead ends: 35773 [2021-11-17 08:10:44,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:10:44,349 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 348 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:44,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 08:10:44,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35773 states. [2021-11-17 08:10:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35773 to 35225. [2021-11-17 08:10:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35225 states, 25733 states have (on average 1.233319084444099) internal successors, (31737), 26331 states have internal predecessors, (31737), 7390 states have call successors, (7390), 2089 states have call predecessors, (7390), 2099 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:10:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35225 states to 35225 states and 47789 transitions. [2021-11-17 08:10:45,596 INFO L78 Accepts]: Start accepts. Automaton has 35225 states and 47789 transitions. Word has length 234 [2021-11-17 08:10:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:10:45,597 INFO L470 AbstractCegarLoop]: Abstraction has 35225 states and 47789 transitions. [2021-11-17 08:10:45,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:45,597 INFO L276 IsEmpty]: Start isEmpty. Operand 35225 states and 47789 transitions. [2021-11-17 08:10:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-17 08:10:45,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:10:45,601 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:10:45,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 08:10:45,601 INFO L402 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)] === [2021-11-17 08:10:45,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:10:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash 794850697, now seen corresponding path program 1 times [2021-11-17 08:10:45,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:10:45,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863313810] [2021-11-17 08:10:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:10:45,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:10:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:10:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:10:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:10:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:10:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:10:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:10:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:10:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:10:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:10:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:10:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:10:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:10:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:10:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:10:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:10:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:10:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:10:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:10:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:10:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:10:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:10:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:10:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:10:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 08:10:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-17 08:10:45,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:10:45,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863313810] [2021-11-17 08:10:45,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863313810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:10:45,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:10:45,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:10:45,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658775347] [2021-11-17 08:10:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:10:45,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:10:45,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:10:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:10:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:10:45,809 INFO L87 Difference]: Start difference. First operand 35225 states and 47789 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:48,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:50,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:51,749 INFO L93 Difference]: Finished difference Result 36295 states and 48833 transitions. [2021-11-17 08:10:51,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 08:10:51,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 239 [2021-11-17 08:10:51,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:51,861 INFO L225 Difference]: With dead ends: 36295 [2021-11-17 08:10:51,862 INFO L226 Difference]: Without dead ends: 36293 [2021-11-17 08:10:51,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:10:51,882 INFO L933 BasicCegarLoop]: 1330 mSDtfsCounter, 1296 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 341 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 4402 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:51,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1438 Valid, 4402 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 714 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 08:10:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36293 states. [2021-11-17 08:10:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36293 to 35745. [2021-11-17 08:10:53,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35745 states, 26166 states have (on average 1.2294580753649775) internal successors, (32170), 26764 states have internal predecessors, (32170), 7390 states have call successors, (7390), 2176 states have call predecessors, (7390), 2186 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:10:53,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35745 states to 35745 states and 48222 transitions. [2021-11-17 08:10:53,155 INFO L78 Accepts]: Start accepts. Automaton has 35745 states and 48222 transitions. Word has length 239 [2021-11-17 08:10:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:10:53,156 INFO L470 AbstractCegarLoop]: Abstraction has 35745 states and 48222 transitions. [2021-11-17 08:10:53,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 35745 states and 48222 transitions. [2021-11-17 08:10:53,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-17 08:10:53,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:10:53,160 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:10:53,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 08:10:53,160 INFO L402 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)] === [2021-11-17 08:10:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:10:53,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1557310903, now seen corresponding path program 1 times [2021-11-17 08:10:53,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:10:53,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975040824] [2021-11-17 08:10:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:10:53,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:10:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:10:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:10:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:10:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:10:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:10:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:10:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:10:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:10:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:10:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:10:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:10:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:10:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:10:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:10:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:10:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:10:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:10:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:10:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:10:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:10:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:10:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:10:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:10:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:10:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:10:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 08:10:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 08:10:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:10:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2021-11-17 08:10:53,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:10:53,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975040824] [2021-11-17 08:10:53,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975040824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:10:53,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:10:53,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:10:53,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479475301] [2021-11-17 08:10:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:10:53,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:10:53,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:10:53,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:10:53,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:10:53,527 INFO L87 Difference]: Start difference. First operand 35745 states and 48222 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:10:56,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:58,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:10:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:10:59,162 INFO L93 Difference]: Finished difference Result 36299 states and 48836 transitions. [2021-11-17 08:10:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:10:59,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 244 [2021-11-17 08:10:59,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:10:59,267 INFO L225 Difference]: With dead ends: 36299 [2021-11-17 08:10:59,267 INFO L226 Difference]: Without dead ends: 36297 [2021-11-17 08:10:59,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:10:59,289 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 346 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:10:59,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 08:10:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36297 states. [2021-11-17 08:11:00,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36297 to 35749. [2021-11-17 08:11:00,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35749 states, 26169 states have (on average 1.229431770415377) internal successors, (32173), 26767 states have internal predecessors, (32173), 7390 states have call successors, (7390), 2177 states have call predecessors, (7390), 2187 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:11:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35749 states to 35749 states and 48225 transitions. [2021-11-17 08:11:00,744 INFO L78 Accepts]: Start accepts. Automaton has 35749 states and 48225 transitions. Word has length 244 [2021-11-17 08:11:00,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:11:00,744 INFO L470 AbstractCegarLoop]: Abstraction has 35749 states and 48225 transitions. [2021-11-17 08:11:00,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:11:00,744 INFO L276 IsEmpty]: Start isEmpty. Operand 35749 states and 48225 transitions. [2021-11-17 08:11:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-17 08:11:00,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:11:00,750 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:11:00,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 08:11:00,751 INFO L402 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)] === [2021-11-17 08:11:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:11:00,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1533052407, now seen corresponding path program 1 times [2021-11-17 08:11:00,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:11:00,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24767475] [2021-11-17 08:11:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:11:00,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:11:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:11:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:11:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:11:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:11:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:11:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:11:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:11:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:11:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:11:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:11:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:11:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:11:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:11:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:11:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:11:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:11:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:11:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:11:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:11:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:11:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:11:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:11:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:11:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:11:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 08:11:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 08:11:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 08:11:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2021-11-17 08:11:00,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:11:00,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24767475] [2021-11-17 08:11:00,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24767475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:11:00,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:11:00,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:11:00,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23476305] [2021-11-17 08:11:00,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:11:00,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:11:00,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:11:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:11:00,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:11:00,997 INFO L87 Difference]: Start difference. First operand 35749 states and 48225 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:11:03,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:05,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:06,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:11:06,678 INFO L93 Difference]: Finished difference Result 36303 states and 48839 transitions. [2021-11-17 08:11:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:11:06,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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 249 [2021-11-17 08:11:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:11:06,787 INFO L225 Difference]: With dead ends: 36303 [2021-11-17 08:11:06,788 INFO L226 Difference]: Without dead ends: 36301 [2021-11-17 08:11:06,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:11:06,810 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 345 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:11:06,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 08:11:06,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36301 states. [2021-11-17 08:11:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36301 to 35753. [2021-11-17 08:11:08,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35753 states, 26172 states have (on average 1.2294054714962555) internal successors, (32176), 26770 states have internal predecessors, (32176), 7390 states have call successors, (7390), 2178 states have call predecessors, (7390), 2188 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:11:08,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35753 states to 35753 states and 48228 transitions. [2021-11-17 08:11:08,105 INFO L78 Accepts]: Start accepts. Automaton has 35753 states and 48228 transitions. Word has length 249 [2021-11-17 08:11:08,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:11:08,106 INFO L470 AbstractCegarLoop]: Abstraction has 35753 states and 48228 transitions. [2021-11-17 08:11:08,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-17 08:11:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 35753 states and 48228 transitions. [2021-11-17 08:11:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-17 08:11:08,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:11:08,111 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 10, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:11:08,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 08:11:08,111 INFO L402 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)] === [2021-11-17 08:11:08,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:11:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 83667127, now seen corresponding path program 1 times [2021-11-17 08:11:08,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:11:08,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903034618] [2021-11-17 08:11:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:11:08,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:11:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:11:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:11:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:11:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:11:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:11:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:11:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:11:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:11:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:11:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:11:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:11:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:11:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:11:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:11:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:11:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:11:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:11:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:11:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:11:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:11:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:11:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:11:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:11:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:11:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 08:11:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 08:11:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 08:11:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:11:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2021-11-17 08:11:08,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:11:08,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903034618] [2021-11-17 08:11:08,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903034618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:11:08,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:11:08,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:11:08,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472884632] [2021-11-17 08:11:08,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:11:08,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:11:08,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:11:08,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:11:08,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:11:08,364 INFO L87 Difference]: Start difference. First operand 35753 states and 48228 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 08:11:11,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:13,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:11:14,244 INFO L93 Difference]: Finished difference Result 36307 states and 48842 transitions. [2021-11-17 08:11:14,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:11:14,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 254 [2021-11-17 08:11:14,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:11:14,341 INFO L225 Difference]: With dead ends: 36307 [2021-11-17 08:11:14,341 INFO L226 Difference]: Without dead ends: 36305 [2021-11-17 08:11:14,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:11:14,357 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 344 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:11:14,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 08:11:14,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36305 states. [2021-11-17 08:11:15,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36305 to 35757. [2021-11-17 08:11:15,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35757 states, 26175 states have (on average 1.2293791786055397) internal successors, (32179), 26773 states have internal predecessors, (32179), 7390 states have call successors, (7390), 2179 states have call predecessors, (7390), 2189 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:11:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35757 states to 35757 states and 48231 transitions. [2021-11-17 08:11:15,736 INFO L78 Accepts]: Start accepts. Automaton has 35757 states and 48231 transitions. Word has length 254 [2021-11-17 08:11:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:11:15,737 INFO L470 AbstractCegarLoop]: Abstraction has 35757 states and 48231 transitions. [2021-11-17 08:11:15,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 08:11:15,737 INFO L276 IsEmpty]: Start isEmpty. Operand 35757 states and 48231 transitions. [2021-11-17 08:11:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-17 08:11:15,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:11:15,742 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:11:15,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 08:11:15,742 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:11:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:11:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash -21721463, now seen corresponding path program 1 times [2021-11-17 08:11:15,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:11:15,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626704786] [2021-11-17 08:11:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:11:15,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:11:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:11:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:11:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:11:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:11:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:11:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:11:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:11:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:11:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:11:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:11:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:11:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:11:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:11:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:11:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:11:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:11:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:11:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:11:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:11:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:11:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:11:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:11:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:11:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:11:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 08:11:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 08:11:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 08:11:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:11:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 08:11:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:15,962 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 08:11:15,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:11:15,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626704786] [2021-11-17 08:11:15,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626704786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:11:15,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:11:15,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:11:15,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168632403] [2021-11-17 08:11:15,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:11:15,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:11:15,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:11:15,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:11:15,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:11:15,964 INFO L87 Difference]: Start difference. First operand 35757 states and 48231 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 08:11:18,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:20,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:21,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:11:21,816 INFO L93 Difference]: Finished difference Result 36311 states and 48845 transitions. [2021-11-17 08:11:21,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:11:21,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 259 [2021-11-17 08:11:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:11:21,926 INFO L225 Difference]: With dead ends: 36311 [2021-11-17 08:11:21,926 INFO L226 Difference]: Without dead ends: 36307 [2021-11-17 08:11:21,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:11:21,948 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1320 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 343 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:11:21,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 4367 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 692 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 08:11:21,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36307 states. [2021-11-17 08:11:23,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36307 to 35759. [2021-11-17 08:11:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35759 states, 26177 states have (on average 1.2293234518852427) internal successors, (32180), 26774 states have internal predecessors, (32180), 7390 states have call successors, (7390), 2180 states have call predecessors, (7390), 2189 states have return successors, (8662), 7129 states have call predecessors, (8662), 7386 states have call successors, (8662) [2021-11-17 08:11:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35759 states to 35759 states and 48232 transitions. [2021-11-17 08:11:23,670 INFO L78 Accepts]: Start accepts. Automaton has 35759 states and 48232 transitions. Word has length 259 [2021-11-17 08:11:23,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:11:23,671 INFO L470 AbstractCegarLoop]: Abstraction has 35759 states and 48232 transitions. [2021-11-17 08:11:23,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 08:11:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 35759 states and 48232 transitions. [2021-11-17 08:11:23,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-17 08:11:23,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:11:23,683 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 12, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:11:23,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 08:11:23,683 INFO L402 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)] === [2021-11-17 08:11:23,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:11:23,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1415933001, now seen corresponding path program 1 times [2021-11-17 08:11:23,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:11:23,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166076877] [2021-11-17 08:11:23,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:11:23,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:11:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:11:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:11:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:11:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:11:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:11:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:11:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:11:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:11:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:11:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:11:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:11:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:11:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:11:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:11:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:11:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:11:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:11:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:11:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 08:11:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:11:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:11:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 08:11:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 08:11:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:11:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 08:11:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 08:11:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 08:11:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 08:11:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 08:11:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:11:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-11-17 08:11:23,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:11:23,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166076877] [2021-11-17 08:11:23,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166076877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:11:23,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:11:23,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 08:11:23,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234932051] [2021-11-17 08:11:23,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:11:23,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 08:11:23,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:11:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 08:11:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 08:11:23,964 INFO L87 Difference]: Start difference. First operand 35759 states and 48232 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 08:11:26,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:28,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:29,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:11:29,778 INFO L93 Difference]: Finished difference Result 36307 states and 48841 transitions. [2021-11-17 08:11:29,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 08:11:29,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 264 [2021-11-17 08:11:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:11:29,879 INFO L225 Difference]: With dead ends: 36307 [2021-11-17 08:11:29,879 INFO L226 Difference]: Without dead ends: 35812 [2021-11-17 08:11:29,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 08:11:29,900 INFO L933 BasicCegarLoop]: 1326 mSDtfsCounter, 1314 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 342 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:11:29,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 4364 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 687 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 08:11:29,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35812 states. [2021-11-17 08:11:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35812 to 35264. [2021-11-17 08:11:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35264 states, 25821 states have (on average 1.2293869331164555) internal successors, (31744), 26370 states have internal predecessors, (31744), 7279 states have call successors, (7279), 2151 states have call predecessors, (7279), 2162 states have return successors, (8555), 7067 states have call predecessors, (8555), 7279 states have call successors, (8555) [2021-11-17 08:11:31,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35264 states to 35264 states and 47578 transitions. [2021-11-17 08:11:31,319 INFO L78 Accepts]: Start accepts. Automaton has 35264 states and 47578 transitions. Word has length 264 [2021-11-17 08:11:31,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:11:31,320 INFO L470 AbstractCegarLoop]: Abstraction has 35264 states and 47578 transitions. [2021-11-17 08:11:31,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 08:11:31,320 INFO L276 IsEmpty]: Start isEmpty. Operand 35264 states and 47578 transitions. [2021-11-17 08:11:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-17 08:11:31,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:11:31,325 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 08:11:31,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 08:11:31,326 INFO L402 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)] === [2021-11-17 08:11:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:11:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -149390319, now seen corresponding path program 1 times [2021-11-17 08:11:31,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:11:31,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024312898] [2021-11-17 08:11:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:11:31,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:11:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:11:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:11:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:11:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:11:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:11:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:11:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:11:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:11:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:11:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:11:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:11:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:11:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:11:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:11:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:11:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:11:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:11:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:11:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 08:11:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 08:11:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:11:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 08:11:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 08:11:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-17 08:11:31,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:11:31,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024312898] [2021-11-17 08:11:31,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024312898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:11:31,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:11:31,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:11:31,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389299051] [2021-11-17 08:11:31,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:11:31,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:11:31,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:11:31,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:11:31,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:11:31,476 INFO L87 Difference]: Start difference. First operand 35264 states and 47578 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:11:34,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:36,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:38,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:11:39,924 INFO L93 Difference]: Finished difference Result 81396 states and 109743 transitions. [2021-11-17 08:11:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:11:39,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 262 [2021-11-17 08:11:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:11:40,197 INFO L225 Difference]: With dead ends: 81396 [2021-11-17 08:11:40,198 INFO L226 Difference]: Without dead ends: 47058 [2021-11-17 08:11:40,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:11:40,264 INFO L933 BasicCegarLoop]: 2454 mSDtfsCounter, 1222 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 296 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 4944 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:11:40,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 4944 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 647 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 08:11:40,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47058 states. [2021-11-17 08:11:41,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47058 to 35264. [2021-11-17 08:11:41,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35264 states, 25821 states have (on average 1.2293869331164555) internal successors, (31744), 26370 states have internal predecessors, (31744), 7279 states have call successors, (7279), 2151 states have call predecessors, (7279), 2162 states have return successors, (8555), 7067 states have call predecessors, (8555), 7279 states have call successors, (8555) [2021-11-17 08:11:41,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35264 states to 35264 states and 47578 transitions. [2021-11-17 08:11:41,834 INFO L78 Accepts]: Start accepts. Automaton has 35264 states and 47578 transitions. Word has length 262 [2021-11-17 08:11:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:11:41,835 INFO L470 AbstractCegarLoop]: Abstraction has 35264 states and 47578 transitions. [2021-11-17 08:11:41,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:11:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 35264 states and 47578 transitions. [2021-11-17 08:11:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-17 08:11:41,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:11:41,840 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 08:11:41,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 08:11:41,841 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:11:41,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:11:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash 726628687, now seen corresponding path program 1 times [2021-11-17 08:11:41,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:11:41,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305439739] [2021-11-17 08:11:41,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:11:41,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:11:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:11:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:11:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:11:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:11:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:11:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:11:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:11:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:11:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:11:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:11:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:11:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:11:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:11:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:11:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:41,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:11:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:11:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:11:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:11:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 08:11:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 08:11:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:11:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 08:11:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 08:11:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-17 08:11:42,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:11:42,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305439739] [2021-11-17 08:11:42,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305439739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:11:42,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:11:42,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:11:42,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943171119] [2021-11-17 08:11:42,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:11:42,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:11:42,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:11:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:11:42,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:11:42,030 INFO L87 Difference]: Start difference. First operand 35264 states and 47578 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:11:45,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:47,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:49,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:51,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:11:52,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:11:52,828 INFO L93 Difference]: Finished difference Result 81460 states and 109871 transitions. [2021-11-17 08:11:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:11:52,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 262 [2021-11-17 08:11:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:11:52,947 INFO L225 Difference]: With dead ends: 81460 [2021-11-17 08:11:52,947 INFO L226 Difference]: Without dead ends: 47170 [2021-11-17 08:11:53,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:11:53,007 INFO L933 BasicCegarLoop]: 2452 mSDtfsCounter, 1228 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 300 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 4937 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:11:53,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 4937 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 655 Invalid, 4 Unknown, 0 Unchecked, 9.0s Time] [2021-11-17 08:11:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47170 states. [2021-11-17 08:11:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47170 to 46442. [2021-11-17 08:11:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46442 states, 34031 states have (on average 1.229584790338221) internal successors, (41844), 34746 states have internal predecessors, (41844), 9563 states have call successors, (9563), 2831 states have call predecessors, (9563), 2846 states have return successors, (11263), 9293 states have call predecessors, (11263), 9563 states have call successors, (11263) [2021-11-17 08:11:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46442 states to 46442 states and 62670 transitions. [2021-11-17 08:11:54,898 INFO L78 Accepts]: Start accepts. Automaton has 46442 states and 62670 transitions. Word has length 262 [2021-11-17 08:11:54,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:11:54,899 INFO L470 AbstractCegarLoop]: Abstraction has 46442 states and 62670 transitions. [2021-11-17 08:11:54,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:11:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 46442 states and 62670 transitions. [2021-11-17 08:11:54,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-17 08:11:54,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:11:54,916 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 08:11:54,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 08:11:54,917 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:11:54,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:11:54,917 INFO L85 PathProgramCache]: Analyzing trace with hash 299509764, now seen corresponding path program 1 times [2021-11-17 08:11:54,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:11:54,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484987473] [2021-11-17 08:11:54,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:11:54,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:11:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:54,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:11:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:54,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:54,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:11:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:54,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:54,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:11:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:54,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:11:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:11:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:11:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:11:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:11:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:11:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:11:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:11:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:11:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:11:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:11:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:11:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:11:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:11:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:11:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:11:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 08:11:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 08:11:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:11:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:11:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 08:11:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 08:11:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:11:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:11:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2021-11-17 08:11:55,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:11:55,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484987473] [2021-11-17 08:11:55,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484987473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:11:55,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:11:55,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:11:55,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958357043] [2021-11-17 08:11:55,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:11:55,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:11:55,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:11:55,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:11:55,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:11:55,098 INFO L87 Difference]: Start difference. First operand 46442 states and 62670 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 08:11:58,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:12:00,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:12:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:12:02,730 INFO L93 Difference]: Finished difference Result 114598 states and 154463 transitions. [2021-11-17 08:12:02,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:12:02,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 281 [2021-11-17 08:12:02,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:12:02,939 INFO L225 Difference]: With dead ends: 114598 [2021-11-17 08:12:02,939 INFO L226 Difference]: Without dead ends: 69130 [2021-11-17 08:12:03,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:12:03,039 INFO L933 BasicCegarLoop]: 2201 mSDtfsCounter, 1232 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 344 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 4524 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-17 08:12:03,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 4524 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 673 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2021-11-17 08:12:03,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69130 states. [2021-11-17 08:12:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69130 to 68034. [2021-11-17 08:12:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68034 states, 49895 states have (on average 1.2268964826134883) internal successors, (61216), 50946 states have internal predecessors, (61216), 13931 states have call successors, (13931), 4191 states have call predecessors, (13931), 4206 states have return successors, (16399), 13533 states have call predecessors, (16399), 13931 states have call successors, (16399) [2021-11-17 08:12:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68034 states to 68034 states and 91546 transitions. [2021-11-17 08:12:06,244 INFO L78 Accepts]: Start accepts. Automaton has 68034 states and 91546 transitions. Word has length 281 [2021-11-17 08:12:06,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:12:06,244 INFO L470 AbstractCegarLoop]: Abstraction has 68034 states and 91546 transitions. [2021-11-17 08:12:06,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-17 08:12:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 68034 states and 91546 transitions. [2021-11-17 08:12:06,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-17 08:12:06,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:12:06,252 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-11-17 08:12:06,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 08:12:06,252 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 08:12:06,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:12:06,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1415061305, now seen corresponding path program 1 times [2021-11-17 08:12:06,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:12:06,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317629613] [2021-11-17 08:12:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:12:06,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:12:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:12:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:12:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:12:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:12:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:12:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:12:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:12:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:12:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:12:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:12:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:12:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 08:12:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 08:12:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 08:12:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 08:12:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 08:12:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:12:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 08:12:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 08:12:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 08:12:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 08:12:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 08:12:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 08:12:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 08:12:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 08:12:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 08:12:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:12:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 964 trivial. 0 not checked. [2021-11-17 08:12:06,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:12:06,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317629613] [2021-11-17 08:12:06,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317629613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:12:06,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:12:06,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:12:06,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865582413] [2021-11-17 08:12:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:12:06,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:12:06,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:12:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:12:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:12:06,412 INFO L87 Difference]: Start difference. First operand 68034 states and 91546 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 08:12:10,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:12:12,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:12:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:12:15,299 INFO L93 Difference]: Finished difference Result 167050 states and 224615 transitions. [2021-11-17 08:12:15,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:12:15,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 284 [2021-11-17 08:12:15,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:12:15,829 INFO L225 Difference]: With dead ends: 167050 [2021-11-17 08:12:15,830 INFO L226 Difference]: Without dead ends: 99990 [2021-11-17 08:12:15,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:12:15,971 INFO L933 BasicCegarLoop]: 2366 mSDtfsCounter, 1136 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 300 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 4784 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:12:15,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1294 Valid, 4784 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 657 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2021-11-17 08:12:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99990 states.