./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-usb-smsc75xx.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 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 11:12:47,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 11:12:47,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 11:12:47,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 11:12:47,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 11:12:47,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 11:12:47,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 11:12:47,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 11:12:47,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 11:12:47,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 11:12:47,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 11:12:47,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 11:12:47,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 11:12:47,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 11:12:47,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 11:12:47,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 11:12:47,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 11:12:47,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 11:12:47,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 11:12:47,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 11:12:47,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 11:12:47,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 11:12:47,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 11:12:47,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 11:12:47,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 11:12:47,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 11:12:47,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 11:12:47,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 11:12:47,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 11:12:47,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 11:12:47,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 11:12:47,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 11:12:47,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 11:12:47,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 11:12:47,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 11:12:47,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 11:12:47,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 11:12:47,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 11:12:47,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 11:12:47,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 11:12:47,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 11:12:47,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 11:12:47,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 11:12:47,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 11:12:47,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 11:12:47,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 11:12:47,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 11:12:47,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 11:12:47,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 11:12:47,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 11:12:47,505 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 11:12:47,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 11:12:47,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 11:12:47,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 11:12:47,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 11:12:47,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 11:12:47,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 11:12:47,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 11:12:47,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 11:12:47,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 11:12:47,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 11:12:47,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 11:12:47,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 11:12:47,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:12:47,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 11:12:47,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 11:12:47,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 11:12:47,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 11:12:47,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 11:12:47,509 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 11:12:47,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 11:12:47,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 11:12:47,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 11:12:47,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 [2021-12-18 11:12:47,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 11:12:47,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 11:12:47,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 11:12:47,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 11:12:47,692 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 11:12:47,693 INFO L432 ainManager$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-usb-smsc75xx.cil.i [2021-12-18 11:12:47,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b56d8803/e3a22da1b94f4f5d9a861f623c5a8969/FLAGeb5fe7a8b [2021-12-18 11:12:48,309 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 11:12:48,310 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-usb-smsc75xx.cil.i [2021-12-18 11:12:48,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b56d8803/e3a22da1b94f4f5d9a861f623c5a8969/FLAGeb5fe7a8b [2021-12-18 11:12:48,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b56d8803/e3a22da1b94f4f5d9a861f623c5a8969 [2021-12-18 11:12:48,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 11:12:48,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 11:12:48,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 11:12:48,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 11:12:48,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 11:12:48,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:12:48" (1/1) ... [2021-12-18 11:12:48,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6bf172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:48, skipping insertion in model container [2021-12-18 11:12:48,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:12:48" (1/1) ... [2021-12-18 11:12:48,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 11:12:48,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 11:12:50,412 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-usb-smsc75xx.cil.i[359515,359528] [2021-12-18 11:12:50,414 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-usb-smsc75xx.cil.i[359684,359697] [2021-12-18 11:12:50,414 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-usb-smsc75xx.cil.i[359851,359864] [2021-12-18 11:12:50,415 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-usb-smsc75xx.cil.i[360019,360032] [2021-12-18 11:12:50,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:12:50,455 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 11:12:50,685 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-usb-smsc75xx.cil.i[359515,359528] [2021-12-18 11:12:50,685 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-usb-smsc75xx.cil.i[359684,359697] [2021-12-18 11:12:50,686 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-usb-smsc75xx.cil.i[359851,359864] [2021-12-18 11:12:50,686 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-usb-smsc75xx.cil.i[360019,360032] [2021-12-18 11:12:50,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:12:50,848 INFO L208 MainTranslator]: Completed translation [2021-12-18 11:12:50,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50 WrapperNode [2021-12-18 11:12:50,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 11:12:50,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 11:12:50,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 11:12:50,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 11:12:50,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:50,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,081 INFO L137 Inliner]: procedures = 390, calls = 3756, calls flagged for inlining = 180, calls inlined = 163, statements flattened = 7743 [2021-12-18 11:12:51,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 11:12:51,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 11:12:51,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 11:12:51,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 11:12:51,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 11:12:51,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 11:12:51,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 11:12:51,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 11:12:51,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (1/1) ... [2021-12-18 11:12:51,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:12:51,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 11:12:51,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 11:12:51,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 11:12:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg_nopm [2021-12-18 11:12:51,442 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg_nopm [2021-12-18 11:12:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 11:12:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 11:12:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2021-12-18 11:12:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2021-12-18 11:12:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 11:12:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 11:12:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2021-12-18 11:12:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2021-12-18 11:12:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:12:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:12:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-12-18 11:12:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-12-18 11:12:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enable_phy_wakeup_interrupts [2021-12-18 11:12:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enable_phy_wakeup_interrupts [2021-12-18 11:12:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_reset [2021-12-18 11:12:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_reset [2021-12-18 11:12:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_eeprom [2021-12-18 11:12:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_eeprom [2021-12-18 11:12:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_write [2021-12-18 11:12:51,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_write [2021-12-18 11:12:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 11:12:51,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 11:12:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-12-18 11:12:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 11:12:51,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 11:12:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_rx_csum_offload [2021-12-18 11:12:51,446 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_rx_csum_offload [2021-12-18 11:12:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 11:12:51,446 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 11:12:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 11:12:51,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 11:12:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 11:12:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_features [2021-12-18 11:12:51,447 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_features [2021-12-18 11:12:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 11:12:51,447 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-12-18 11:12:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-12-18 11:12:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 11:12:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 11:12:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 11:12:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-12-18 11:12:51,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-12-18 11:12:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read_nopm [2021-12-18 11:12:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read_nopm [2021-12-18 11:12:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 11:12:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 11:12:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 11:12:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-12-18 11:12:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_phy_wait_not_busy [2021-12-18 11:12:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_phy_wait_not_busy [2021-12-18 11:12:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-12-18 11:12:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-12-18 11:12:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write [2021-12-18 11:12:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write [2021-12-18 11:12:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-12-18 11:12:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:12:51,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:12:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 11:12:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 11:12:51,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 11:12:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 11:12:51,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 11:12:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 11:12:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 11:12:51,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 11:12:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 11:12:51,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 11:12:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 11:12:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 11:12:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 11:12:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2021-12-18 11:12:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2021-12-18 11:12:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_read [2021-12-18 11:12:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_read [2021-12-18 11:12:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_rx_max_frame_length [2021-12-18 11:12:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_rx_max_frame_length [2021-12-18 11:12:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 11:12:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 11:12:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 11:12:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 11:12:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_read_reg [2021-12-18 11:12:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_read_reg [2021-12-18 11:12:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-18 11:12:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-18 11:12:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 11:12:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 11:12:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_ethtool_get_eeprom_len [2021-12-18 11:12:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_ethtool_get_eeprom_len [2021-12-18 11:12:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 11:12:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 11:12:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 11:12:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 11:12:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2021-12-18 11:12:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc75xx_driver_exit_6_2 [2021-12-18 11:12:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-18 11:12:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-18 11:12:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:12:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:12:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2021-12-18 11:12:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2021-12-18 11:12:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg [2021-12-18 11:12:51,459 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg [2021-12-18 11:12:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2021-12-18 11:12:51,459 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2021-12-18 11:12:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 11:12:51,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 11:12:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_mdio_write_nopm [2021-12-18 11:12:51,460 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_mdio_write_nopm [2021-12-18 11:12:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_set_multicast [2021-12-18 11:12:51,460 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_set_multicast [2021-12-18 11:12:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 11:12:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 11:12:51,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 11:12:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 11:12:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 11:12:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 11:12:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 11:12:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 11:12:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 11:12:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_mdio_read [2021-12-18 11:12:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_mdio_read [2021-12-18 11:12:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 11:12:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 11:12:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 11:12:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 11:12:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_reg_nopm [2021-12-18 11:12:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_reg_nopm [2021-12-18 11:12:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-12-18 11:12:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-12-18 11:12:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc75xx_write_reg [2021-12-18 11:12:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc75xx_write_reg [2021-12-18 11:12:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-12-18 11:12:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-12-18 11:12:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_wait_ready [2021-12-18 11:12:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_wait_ready [2021-12-18 11:12:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 11:12:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-18 11:12:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-18 11:12:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_read_eeprom [2021-12-18 11:12:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_read_eeprom [2021-12-18 11:12:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 11:12:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 11:12:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-12-18 11:12:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_link_reset [2021-12-18 11:12:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_link_reset [2021-12-18 11:12:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_resume [2021-12-18 11:12:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_resume [2021-12-18 11:12:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_wuff [2021-12-18 11:12:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_wuff [2021-12-18 11:12:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_eeprom_confirm_not_busy [2021-12-18 11:12:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_eeprom_confirm_not_busy [2021-12-18 11:12:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 11:12:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 11:12:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend2 [2021-12-18 11:12:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend2 [2021-12-18 11:12:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_enter_suspend1 [2021-12-18 11:12:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_enter_suspend1 [2021-12-18 11:12:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure smsc75xx_write_reg [2021-12-18 11:12:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc75xx_write_reg [2021-12-18 11:12:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 11:12:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2021-12-18 11:12:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rfe_ctl_lock_of_smsc75xx_priv [2021-12-18 11:12:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 11:12:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 11:12:52,231 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 11:12:52,233 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 11:12:52,483 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 11:12:54,983 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 11:12:58,809 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 11:12:58,826 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 11:12:58,826 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 11:12:58,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:12:58 BoogieIcfgContainer [2021-12-18 11:12:58,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 11:12:58,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 11:12:58,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 11:12:58,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 11:12:58,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:12:48" (1/3) ... [2021-12-18 11:12:58,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c855a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:12:58, skipping insertion in model container [2021-12-18 11:12:58,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:50" (2/3) ... [2021-12-18 11:12:58,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c855a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:12:58, skipping insertion in model container [2021-12-18 11:12:58,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:12:58" (3/3) ... [2021-12-18 11:12:58,836 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2021-12-18 11:12:58,839 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 11:12:58,839 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 11:12:58,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 11:12:58,886 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 11:12:58,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 11:12:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 1730 states, 1252 states have (on average 1.3594249201277955) internal successors, (1702), 1255 states have internal predecessors, (1702), 403 states have call successors, (403), 73 states have call predecessors, (403), 72 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) [2021-12-18 11:12:58,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-18 11:12:58,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:12:58,943 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:12:58,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:12:58,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:12:58,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1282096025, now seen corresponding path program 1 times [2021-12-18 11:12:58,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:12:58,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211174377] [2021-12-18 11:12:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:12:58,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:12:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:12:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:12:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:12:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:12:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:12:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:12:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:12:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:12:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:12:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:12:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:12:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:12:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:12:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:12:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:12:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:12:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:12:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:12:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:12:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 11:12:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:12:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-12-18 11:12:59,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:12:59,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211174377] [2021-12-18 11:12:59,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211174377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:12:59,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:12:59,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:12:59,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726397270] [2021-12-18 11:12:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:12:59,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:12:59,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:12:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:12:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:12:59,986 INFO L87 Difference]: Start difference. First operand has 1730 states, 1252 states have (on average 1.3594249201277955) internal successors, (1702), 1255 states have internal predecessors, (1702), 403 states have call successors, (403), 73 states have call predecessors, (403), 72 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:13:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:13:07,155 INFO L93 Difference]: Finished difference Result 5034 states and 7686 transitions. [2021-12-18 11:13:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:13:07,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 217 [2021-12-18 11:13:07,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:13:07,226 INFO L225 Difference]: With dead ends: 5034 [2021-12-18 11:13:07,226 INFO L226 Difference]: Without dead ends: 3332 [2021-12-18 11:13:07,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:13:07,244 INFO L933 BasicCegarLoop]: 2751 mSDtfsCounter, 2647 mSDsluCounter, 3744 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 6495 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:13:07,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2818 Valid, 6495 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-18 11:13:07,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2021-12-18 11:13:07,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 3300. [2021-12-18 11:13:07,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2416 states have (on average 1.3555463576158941) internal successors, (3275), 2421 states have internal predecessors, (3275), 741 states have call successors, (741), 141 states have call predecessors, (741), 140 states have return successors, (737), 737 states have call predecessors, (737), 737 states have call successors, (737) [2021-12-18 11:13:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4753 transitions. [2021-12-18 11:13:07,476 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4753 transitions. Word has length 217 [2021-12-18 11:13:07,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:13:07,479 INFO L470 AbstractCegarLoop]: Abstraction has 3300 states and 4753 transitions. [2021-12-18 11:13:07,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:13:07,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4753 transitions. [2021-12-18 11:13:07,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-12-18 11:13:07,486 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:13:07,486 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:13:07,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 11:13:07,487 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:13:07,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:13:07,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1294253859, now seen corresponding path program 1 times [2021-12-18 11:13:07,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:13:07,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211218933] [2021-12-18 11:13:07,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:13:07,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:13:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:13:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:13:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:13:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:13:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:13:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:13:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:13:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:13:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:13:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:13:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:13:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:13:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:13:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:13:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:13:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:13:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:13:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:13:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 11:13:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-12-18 11:13:07,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:13:07,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211218933] [2021-12-18 11:13:07,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211218933] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:13:07,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:13:07,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:13:07,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681615435] [2021-12-18 11:13:07,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:13:07,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:13:07,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:13:07,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:13:07,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:13:07,886 INFO L87 Difference]: Start difference. First operand 3300 states and 4753 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:13:11,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:13:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:13:15,698 INFO L93 Difference]: Finished difference Result 7859 states and 11352 transitions. [2021-12-18 11:13:15,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:13:15,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 228 [2021-12-18 11:13:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:13:15,718 INFO L225 Difference]: With dead ends: 7859 [2021-12-18 11:13:15,719 INFO L226 Difference]: Without dead ends: 4598 [2021-12-18 11:13:15,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:13:15,728 INFO L933 BasicCegarLoop]: 2843 mSDtfsCounter, 2309 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 6607 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 849 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:13:15,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2475 Valid, 6607 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [849 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-18 11:13:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2021-12-18 11:13:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4529. [2021-12-18 11:13:15,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 3275 states have (on average 1.3578625954198473) internal successors, (4447), 3285 states have internal predecessors, (4447), 1042 states have call successors, (1042), 210 states have call predecessors, (1042), 209 states have return successors, (1038), 1033 states have call predecessors, (1038), 1038 states have call successors, (1038) [2021-12-18 11:13:15,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 6527 transitions. [2021-12-18 11:13:15,833 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 6527 transitions. Word has length 228 [2021-12-18 11:13:15,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:13:15,833 INFO L470 AbstractCegarLoop]: Abstraction has 4529 states and 6527 transitions. [2021-12-18 11:13:15,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:13:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 6527 transitions. [2021-12-18 11:13:15,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-12-18 11:13:15,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:13:15,838 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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] [2021-12-18 11:13:15,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 11:13:15,838 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:13:15,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:13:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1589193594, now seen corresponding path program 1 times [2021-12-18 11:13:15,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:13:15,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176273140] [2021-12-18 11:13:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:13:15,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:13:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:13:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:13:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:13:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:13:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:13:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:13:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:13:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:13:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:13:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:13:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:13:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:13:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:13:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:13:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:13:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:13:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:13:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:13:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:13:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:13:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:13:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:13:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:13:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:13:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:13:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-12-18 11:13:16,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:13:16,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176273140] [2021-12-18 11:13:16,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176273140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:13:16,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:13:16,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:13:16,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708290821] [2021-12-18 11:13:16,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:13:16,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:13:16,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:13:16,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:13:16,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:13:16,502 INFO L87 Difference]: Start difference. First operand 4529 states and 6527 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-12-18 11:13:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:13:23,720 INFO L93 Difference]: Finished difference Result 4577 states and 6615 transitions. [2021-12-18 11:13:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:13:23,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 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 276 [2021-12-18 11:13:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:13:23,739 INFO L225 Difference]: With dead ends: 4577 [2021-12-18 11:13:23,739 INFO L226 Difference]: Without dead ends: 4575 [2021-12-18 11:13:23,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:13:23,742 INFO L933 BasicCegarLoop]: 2398 mSDtfsCounter, 2447 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2588 SdHoareTripleChecker+Valid, 8175 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:13:23,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2588 Valid, 8175 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-12-18 11:13:23,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2021-12-18 11:13:23,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4533. [2021-12-18 11:13:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4533 states, 3278 states have (on average 1.3575350823672971) internal successors, (4450), 3288 states have internal predecessors, (4450), 1042 states have call successors, (1042), 211 states have call predecessors, (1042), 210 states have return successors, (1038), 1033 states have call predecessors, (1038), 1038 states have call successors, (1038) [2021-12-18 11:13:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 6530 transitions. [2021-12-18 11:13:23,876 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 6530 transitions. Word has length 276 [2021-12-18 11:13:23,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:13:23,876 INFO L470 AbstractCegarLoop]: Abstraction has 4533 states and 6530 transitions. [2021-12-18 11:13:23,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-12-18 11:13:23,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 6530 transitions. [2021-12-18 11:13:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-18 11:13:23,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:13:23,882 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:13:23,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 11:13:23,883 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:13:23,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:13:23,883 INFO L85 PathProgramCache]: Analyzing trace with hash -590041941, now seen corresponding path program 1 times [2021-12-18 11:13:23,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:13:23,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316296862] [2021-12-18 11:13:23,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:13:23,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:13:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:13:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:13:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:13:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:13:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:13:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:13:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:13:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:13:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:13:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:13:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:13:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:13:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:13:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:13:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:13:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:13:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:13:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:13:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:13:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:13:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:13:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:13:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:13:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:13:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:13:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:13:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2021-12-18 11:13:24,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:13:24,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316296862] [2021-12-18 11:13:24,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316296862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:13:24,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:13:24,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:13:24,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927564234] [2021-12-18 11:13:24,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:13:24,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:13:24,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:13:24,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:13:24,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:13:24,306 INFO L87 Difference]: Start difference. First operand 4533 states and 6530 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:13:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:13:31,514 INFO L93 Difference]: Finished difference Result 4581 states and 6618 transitions. [2021-12-18 11:13:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:13:31,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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 281 [2021-12-18 11:13:31,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:13:31,531 INFO L225 Difference]: With dead ends: 4581 [2021-12-18 11:13:31,531 INFO L226 Difference]: Without dead ends: 4579 [2021-12-18 11:13:31,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:13:31,535 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 2439 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 8178 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:13:31,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 8178 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-12-18 11:13:31,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2021-12-18 11:13:31,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 4537. [2021-12-18 11:13:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4537 states, 3281 states have (on average 1.35720816824139) internal successors, (4453), 3291 states have internal predecessors, (4453), 1042 states have call successors, (1042), 212 states have call predecessors, (1042), 211 states have return successors, (1038), 1033 states have call predecessors, (1038), 1038 states have call successors, (1038) [2021-12-18 11:13:31,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 6533 transitions. [2021-12-18 11:13:31,652 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 6533 transitions. Word has length 281 [2021-12-18 11:13:31,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:13:31,653 INFO L470 AbstractCegarLoop]: Abstraction has 4537 states and 6533 transitions. [2021-12-18 11:13:31,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:13:31,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 6533 transitions. [2021-12-18 11:13:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-18 11:13:31,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:13:31,658 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:13:31,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 11:13:31,658 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:13:31,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:13:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash 886283685, now seen corresponding path program 1 times [2021-12-18 11:13:31,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:13:31,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189508356] [2021-12-18 11:13:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:13:31,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:13:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:13:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:13:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:13:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:13:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:13:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:13:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:13:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:13:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:13:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:13:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:13:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:13:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:13:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:13:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:13:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:13:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:13:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:13:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:13:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:13:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:13:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:13:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:13:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:13:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 11:13:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:13:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:13:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:13:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:13:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1490 trivial. 0 not checked. [2021-12-18 11:13:31,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:13:31,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189508356] [2021-12-18 11:13:31,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189508356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:13:31,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:13:31,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:13:31,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827027689] [2021-12-18 11:13:31,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:13:31,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:13:31,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:13:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:13:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:13:31,994 INFO L87 Difference]: Start difference. First operand 4537 states and 6533 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 11:13:33,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:13:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:13:51,240 INFO L93 Difference]: Finished difference Result 10734 states and 15485 transitions. [2021-12-18 11:13:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:13:51,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 296 [2021-12-18 11:13:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:13:51,282 INFO L225 Difference]: With dead ends: 10734 [2021-12-18 11:13:51,282 INFO L226 Difference]: Without dead ends: 7598 [2021-12-18 11:13:51,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:13:51,296 INFO L933 BasicCegarLoop]: 4315 mSDtfsCounter, 2912 mSDsluCounter, 4211 mSDsCounter, 0 mSdLazyCounter, 3955 mSolverCounterSat, 1587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 8526 SdHoareTripleChecker+Invalid, 5542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1587 IncrementalHoareTripleChecker+Valid, 3955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-12-18 11:13:51,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3227 Valid, 8526 Invalid, 5542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1587 Valid, 3955 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2021-12-18 11:13:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7598 states. [2021-12-18 11:13:51,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7598 to 7498. [2021-12-18 11:13:51,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 5448 states have (on average 1.3592143906020557) internal successors, (7405), 5458 states have internal predecessors, (7405), 1700 states have call successors, (1700), 348 states have call predecessors, (1700), 347 states have return successors, (1696), 1691 states have call predecessors, (1696), 1696 states have call successors, (1696) [2021-12-18 11:13:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 10801 transitions. [2021-12-18 11:13:51,499 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 10801 transitions. Word has length 296 [2021-12-18 11:13:51,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:13:51,499 INFO L470 AbstractCegarLoop]: Abstraction has 7498 states and 10801 transitions. [2021-12-18 11:13:51,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 11:13:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 10801 transitions. [2021-12-18 11:13:51,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-12-18 11:13:51,505 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:13:51,505 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:13:51,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 11:13:51,506 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)] === [2021-12-18 11:13:51,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:13:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1820088794, now seen corresponding path program 1 times [2021-12-18 11:13:51,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:13:51,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577308582] [2021-12-18 11:13:51,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:13:51,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:13:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:13:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:13:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:13:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:13:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:13:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:13:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:13:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:13:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:13:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:13:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:13:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:13:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:13:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:13:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:13:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:13:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:13:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:13:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:13:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:13:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:13:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:13:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:13:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:13:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:13:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:52,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:13:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:52,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:13:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:13:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:13:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1490 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-12-18 11:13:52,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:13:52,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577308582] [2021-12-18 11:13:52,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577308582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:13:52,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:13:52,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:13:52,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672057103] [2021-12-18 11:13:52,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:13:52,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:13:52,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:13:52,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:13:52,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:13:52,048 INFO L87 Difference]: Start difference. First operand 7498 states and 10801 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:13:53,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:13:54,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:13:55,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:14:01,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:14:01,455 INFO L93 Difference]: Finished difference Result 7574 states and 10933 transitions. [2021-12-18 11:14:01,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:14:01,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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 286 [2021-12-18 11:14:01,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:14:01,485 INFO L225 Difference]: With dead ends: 7574 [2021-12-18 11:14:01,485 INFO L226 Difference]: Without dead ends: 7572 [2021-12-18 11:14:01,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:14:01,489 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 2439 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 8178 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-12-18 11:14:01,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 8178 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2021-12-18 11:14:01,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7572 states. [2021-12-18 11:14:01,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7572 to 7502. [2021-12-18 11:14:01,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 5451 states have (on average 1.3590166941845534) internal successors, (7408), 5461 states have internal predecessors, (7408), 1700 states have call successors, (1700), 349 states have call predecessors, (1700), 348 states have return successors, (1696), 1691 states have call predecessors, (1696), 1696 states have call successors, (1696) [2021-12-18 11:14:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 10804 transitions. [2021-12-18 11:14:01,738 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 10804 transitions. Word has length 286 [2021-12-18 11:14:01,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:14:01,739 INFO L470 AbstractCegarLoop]: Abstraction has 7502 states and 10804 transitions. [2021-12-18 11:14:01,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:14:01,739 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 10804 transitions. [2021-12-18 11:14:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-12-18 11:14:01,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:14:01,746 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:14:01,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 11:14:01,746 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:14:01,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:14:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1029363746, now seen corresponding path program 1 times [2021-12-18 11:14:01,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:14:01,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452184185] [2021-12-18 11:14:01,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:14:01,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:14:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:14:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:14:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:14:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:14:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:14:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:14:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:14:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:14:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:14:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:14:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:14:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:14:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:14:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:14:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:14:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:14:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:14:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:14:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:14:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:14:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:14:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:14:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:14:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:14:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 11:14:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:14:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:14:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:14:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:14:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 11:14:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1510 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1498 trivial. 0 not checked. [2021-12-18 11:14:02,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:14:02,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452184185] [2021-12-18 11:14:02,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452184185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:14:02,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:14:02,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:14:02,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702251995] [2021-12-18 11:14:02,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:14:02,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:14:02,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:14:02,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:14:02,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:14:02,039 INFO L87 Difference]: Start difference. First operand 7502 states and 10804 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 11:14:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:14:21,093 INFO L93 Difference]: Finished difference Result 16664 states and 24033 transitions. [2021-12-18 11:14:21,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:14:21,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 301 [2021-12-18 11:14:21,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:14:21,156 INFO L225 Difference]: With dead ends: 16664 [2021-12-18 11:14:21,157 INFO L226 Difference]: Without dead ends: 10563 [2021-12-18 11:14:21,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:14:21,207 INFO L933 BasicCegarLoop]: 4296 mSDtfsCounter, 2907 mSDsluCounter, 4206 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 1541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 8502 SdHoareTripleChecker+Invalid, 5479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1541 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2021-12-18 11:14:21,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3224 Valid, 8502 Invalid, 5479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1541 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2021-12-18 11:14:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-12-18 11:14:21,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10461. [2021-12-18 11:14:21,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 7616 states have (on average 1.360031512605042) internal successors, (10358), 7626 states have internal predecessors, (10358), 2358 states have call successors, (2358), 485 states have call predecessors, (2358), 484 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:14:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 15070 transitions. [2021-12-18 11:14:21,616 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 15070 transitions. Word has length 301 [2021-12-18 11:14:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:14:21,618 INFO L470 AbstractCegarLoop]: Abstraction has 10461 states and 15070 transitions. [2021-12-18 11:14:21,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 11:14:21,618 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 15070 transitions. [2021-12-18 11:14:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-12-18 11:14:21,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:14:21,624 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:14:21,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 11:14:21,624 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:14:21,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:14:21,625 INFO L85 PathProgramCache]: Analyzing trace with hash 334080459, now seen corresponding path program 1 times [2021-12-18 11:14:21,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:14:21,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341110179] [2021-12-18 11:14:21,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:14:21,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:14:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:14:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:14:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:14:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:14:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:14:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:14:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:14:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:14:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:14:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:14:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:14:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:14:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:14:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:14:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:14:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:14:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:14:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:14:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:14:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:14:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:14:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:14:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:14:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:14:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:14:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:14:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:14:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:14:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:21,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1494 trivial. 0 not checked. [2021-12-18 11:14:21,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:14:21,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341110179] [2021-12-18 11:14:21,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341110179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:14:21,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:14:21,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:14:21,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090981034] [2021-12-18 11:14:21,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:14:21,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:14:21,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:14:21,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:14:21,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:14:21,988 INFO L87 Difference]: Start difference. First operand 10461 states and 15070 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:14:29,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:14:29,527 INFO L93 Difference]: Finished difference Result 10565 states and 15246 transitions. [2021-12-18 11:14:29,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:14:29,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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 291 [2021-12-18 11:14:29,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:14:29,587 INFO L225 Difference]: With dead ends: 10565 [2021-12-18 11:14:29,588 INFO L226 Difference]: Without dead ends: 10563 [2021-12-18 11:14:29,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:14:29,596 INFO L933 BasicCegarLoop]: 2399 mSDtfsCounter, 2439 mSDsluCounter, 5771 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 8170 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:14:29,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2582 Valid, 8170 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2021-12-18 11:14:29,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-12-18 11:14:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10465. [2021-12-18 11:14:29,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10465 states, 7619 states have (on average 1.3598897493109332) internal successors, (10361), 7629 states have internal predecessors, (10361), 2358 states have call successors, (2358), 486 states have call predecessors, (2358), 485 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:14:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10465 states to 10465 states and 15073 transitions. [2021-12-18 11:14:30,029 INFO L78 Accepts]: Start accepts. Automaton has 10465 states and 15073 transitions. Word has length 291 [2021-12-18 11:14:30,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:14:30,029 INFO L470 AbstractCegarLoop]: Abstraction has 10465 states and 15073 transitions. [2021-12-18 11:14:30,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:14:30,030 INFO L276 IsEmpty]: Start isEmpty. Operand 10465 states and 15073 transitions. [2021-12-18 11:14:30,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-18 11:14:30,037 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:14:30,038 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:14:30,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 11:14:30,038 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:14:30,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:14:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1926414394, now seen corresponding path program 1 times [2021-12-18 11:14:30,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:14:30,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927569955] [2021-12-18 11:14:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:14:30,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:14:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:14:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:14:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:14:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:14:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:14:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:14:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:14:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:14:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:14:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:14:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:14:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:14:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:14:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:14:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:14:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:14:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:14:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:14:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:14:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:14:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:14:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:14:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:14:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:14:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:14:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:14:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:14:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:14:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:14:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2021-12-18 11:14:30,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:14:30,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927569955] [2021-12-18 11:14:30,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927569955] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:14:30,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:14:30,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:14:30,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066555370] [2021-12-18 11:14:30,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:14:30,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:14:30,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:14:30,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:14:30,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:14:30,468 INFO L87 Difference]: Start difference. First operand 10465 states and 15073 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:14:33,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:14:38,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:14:38,428 INFO L93 Difference]: Finished difference Result 10569 states and 15249 transitions. [2021-12-18 11:14:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:14:38,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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 296 [2021-12-18 11:14:38,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:14:38,460 INFO L225 Difference]: With dead ends: 10569 [2021-12-18 11:14:38,460 INFO L226 Difference]: Without dead ends: 10567 [2021-12-18 11:14:38,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:14:38,464 INFO L933 BasicCegarLoop]: 2400 mSDtfsCounter, 2439 mSDsluCounter, 5774 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 8174 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-18 11:14:38,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2581 Valid, 8174 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2021-12-18 11:14:38,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10567 states. [2021-12-18 11:14:38,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10567 to 10469. [2021-12-18 11:14:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 7622 states have (on average 1.3597480976121752) internal successors, (10364), 7632 states have internal predecessors, (10364), 2358 states have call successors, (2358), 487 states have call predecessors, (2358), 486 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:14:38,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 15076 transitions. [2021-12-18 11:14:38,726 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 15076 transitions. Word has length 296 [2021-12-18 11:14:38,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:14:38,727 INFO L470 AbstractCegarLoop]: Abstraction has 10469 states and 15076 transitions. [2021-12-18 11:14:38,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:14:38,727 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 15076 transitions. [2021-12-18 11:14:38,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-12-18 11:14:38,734 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:14:38,734 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:14:38,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 11:14:38,734 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:14:38,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:14:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1169059563, now seen corresponding path program 1 times [2021-12-18 11:14:38,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:14:38,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200783470] [2021-12-18 11:14:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:14:38,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:14:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:14:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:14:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:14:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:14:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:14:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:14:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:14:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:14:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:14:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:14:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:14:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:14:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:14:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:14:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:14:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:14:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:14:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:14:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:14:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:14:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:14:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:14:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:14:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:14:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:14:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:14:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:14:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:14:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:14:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 11:14:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2021-12-18 11:14:39,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:14:39,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200783470] [2021-12-18 11:14:39,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200783470] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:14:39,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:14:39,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:14:39,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959404776] [2021-12-18 11:14:39,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:14:39,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:14:39,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:14:39,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:14:39,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:14:39,136 INFO L87 Difference]: Start difference. First operand 10469 states and 15076 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:14:42,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:14:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:14:47,843 INFO L93 Difference]: Finished difference Result 10573 states and 15252 transitions. [2021-12-18 11:14:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:14:47,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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 301 [2021-12-18 11:14:47,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:14:47,881 INFO L225 Difference]: With dead ends: 10573 [2021-12-18 11:14:47,882 INFO L226 Difference]: Without dead ends: 10571 [2021-12-18 11:14:47,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:14:47,889 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 2439 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 8178 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:14:47,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 8178 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-12-18 11:14:47,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2021-12-18 11:14:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 10473. [2021-12-18 11:14:48,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10473 states, 7625 states have (on average 1.3596065573770493) internal successors, (10367), 7635 states have internal predecessors, (10367), 2358 states have call successors, (2358), 488 states have call predecessors, (2358), 487 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:14:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10473 states to 10473 states and 15079 transitions. [2021-12-18 11:14:48,196 INFO L78 Accepts]: Start accepts. Automaton has 10473 states and 15079 transitions. Word has length 301 [2021-12-18 11:14:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:14:48,196 INFO L470 AbstractCegarLoop]: Abstraction has 10473 states and 15079 transitions. [2021-12-18 11:14:48,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-12-18 11:14:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 10473 states and 15079 transitions. [2021-12-18 11:14:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-18 11:14:48,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:14:48,203 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:14:48,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 11:14:48,204 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:14:48,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:14:48,204 INFO L85 PathProgramCache]: Analyzing trace with hash 488005274, now seen corresponding path program 1 times [2021-12-18 11:14:48,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:14:48,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996745221] [2021-12-18 11:14:48,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:14:48,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:14:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:14:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:14:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:14:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:14:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:14:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:14:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:14:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:14:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:14:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:14:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:14:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:14:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:14:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:14:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:14:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:14:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:14:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:14:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:14:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:14:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:14:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:14:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:14:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:14:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:14:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:14:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:14:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:14:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:14:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 11:14:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 11:14:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1542 trivial. 0 not checked. [2021-12-18 11:14:48,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:14:48,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996745221] [2021-12-18 11:14:48,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996745221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:14:48,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:14:48,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:14:48,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087829250] [2021-12-18 11:14:48,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:14:48,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:14:48,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:14:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:14:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:14:48,672 INFO L87 Difference]: Start difference. First operand 10473 states and 15079 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:14:50,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:14:57,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:14:57,331 INFO L93 Difference]: Finished difference Result 10577 states and 15255 transitions. [2021-12-18 11:14:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:14:57,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 306 [2021-12-18 11:14:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:14:57,387 INFO L225 Difference]: With dead ends: 10577 [2021-12-18 11:14:57,387 INFO L226 Difference]: Without dead ends: 10575 [2021-12-18 11:14:57,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:14:57,408 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 2439 mSDsluCounter, 5777 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 8178 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:14:57,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 8178 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-12-18 11:14:57,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2021-12-18 11:14:57,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 10477. [2021-12-18 11:14:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10477 states, 7628 states have (on average 1.359465128474043) internal successors, (10370), 7638 states have internal predecessors, (10370), 2358 states have call successors, (2358), 489 states have call predecessors, (2358), 488 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:14:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10477 states to 10477 states and 15082 transitions. [2021-12-18 11:14:57,771 INFO L78 Accepts]: Start accepts. Automaton has 10477 states and 15082 transitions. Word has length 306 [2021-12-18 11:14:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:14:57,772 INFO L470 AbstractCegarLoop]: Abstraction has 10477 states and 15082 transitions. [2021-12-18 11:14:57,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:14:57,772 INFO L276 IsEmpty]: Start isEmpty. Operand 10477 states and 15082 transitions. [2021-12-18 11:14:57,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-12-18 11:14:57,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:14:57,780 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:14:57,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 11:14:57,780 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)] === [2021-12-18 11:14:57,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:14:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash -821494773, now seen corresponding path program 1 times [2021-12-18 11:14:57,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:14:57,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115214685] [2021-12-18 11:14:57,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:14:57,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:14:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:14:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:14:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:14:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:14:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:14:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:14:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:14:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:14:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:14:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:14:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:14:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:14:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:14:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:14:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:14:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:14:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:14:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:14:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:14:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:14:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:14:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:14:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:14:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:14:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:14:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:14:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:14:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:14:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:14:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:14:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 11:14:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 11:14:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 11:14:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:14:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1566 trivial. 0 not checked. [2021-12-18 11:14:58,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:14:58,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115214685] [2021-12-18 11:14:58,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115214685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:14:58,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:14:58,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:14:58,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809353378] [2021-12-18 11:14:58,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:14:58,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:14:58,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:14:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:14:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:14:58,147 INFO L87 Difference]: Start difference. First operand 10477 states and 15082 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 11:15:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:15:05,936 INFO L93 Difference]: Finished difference Result 10581 states and 15258 transitions. [2021-12-18 11:15:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:15:05,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 311 [2021-12-18 11:15:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:15:05,965 INFO L225 Difference]: With dead ends: 10581 [2021-12-18 11:15:05,965 INFO L226 Difference]: Without dead ends: 10579 [2021-12-18 11:15:05,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:15:05,971 INFO L933 BasicCegarLoop]: 2400 mSDtfsCounter, 2439 mSDsluCounter, 5774 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 8174 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:15:05,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2581 Valid, 8174 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-12-18 11:15:05,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2021-12-18 11:15:06,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 10481. [2021-12-18 11:15:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10481 states, 7631 states have (on average 1.3593238107718517) internal successors, (10373), 7641 states have internal predecessors, (10373), 2358 states have call successors, (2358), 490 states have call predecessors, (2358), 489 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:15:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10481 states to 10481 states and 15085 transitions. [2021-12-18 11:15:06,259 INFO L78 Accepts]: Start accepts. Automaton has 10481 states and 15085 transitions. Word has length 311 [2021-12-18 11:15:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:15:06,260 INFO L470 AbstractCegarLoop]: Abstraction has 10481 states and 15085 transitions. [2021-12-18 11:15:06,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 11:15:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 10481 states and 15085 transitions. [2021-12-18 11:15:06,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-18 11:15:06,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:15:06,270 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:15:06,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 11:15:06,270 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)] === [2021-12-18 11:15:06,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:15:06,271 INFO L85 PathProgramCache]: Analyzing trace with hash 773928186, now seen corresponding path program 1 times [2021-12-18 11:15:06,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:15:06,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281839151] [2021-12-18 11:15:06,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:15:06,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:15:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:15:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:15:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:15:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:15:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:15:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:15:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:15:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:15:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:15:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:15:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:15:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:15:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:15:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:15:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:15:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:15:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:15:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:15:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:15:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:15:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:15:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:15:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:15:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:15:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:15:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:15:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:15:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:15:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:15:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 11:15:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 11:15:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 11:15:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 11:15:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2021-12-18 11:15:06,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:15:06,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281839151] [2021-12-18 11:15:06,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281839151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:15:06,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:15:06,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:15:06,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142117600] [2021-12-18 11:15:06,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:15:06,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:15:06,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:15:06,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:15:06,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:15:06,726 INFO L87 Difference]: Start difference. First operand 10481 states and 15085 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 11:15:09,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:15:15,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:15:15,841 INFO L93 Difference]: Finished difference Result 10585 states and 15261 transitions. [2021-12-18 11:15:15,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:15:15,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 316 [2021-12-18 11:15:15,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:15:15,872 INFO L225 Difference]: With dead ends: 10585 [2021-12-18 11:15:15,873 INFO L226 Difference]: Without dead ends: 10583 [2021-12-18 11:15:15,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:15:15,879 INFO L933 BasicCegarLoop]: 2400 mSDtfsCounter, 2439 mSDsluCounter, 5774 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 515 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 8174 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:15:15,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2581 Valid, 8174 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 1008 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2021-12-18 11:15:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2021-12-18 11:15:16,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 10485. [2021-12-18 11:15:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10485 states, 7634 states have (on average 1.3591826041393764) internal successors, (10376), 7644 states have internal predecessors, (10376), 2358 states have call successors, (2358), 491 states have call predecessors, (2358), 490 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:15:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10485 states to 10485 states and 15088 transitions. [2021-12-18 11:15:16,265 INFO L78 Accepts]: Start accepts. Automaton has 10485 states and 15088 transitions. Word has length 316 [2021-12-18 11:15:16,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:15:16,266 INFO L470 AbstractCegarLoop]: Abstraction has 10485 states and 15088 transitions. [2021-12-18 11:15:16,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 11:15:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand 10485 states and 15088 transitions. [2021-12-18 11:15:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-12-18 11:15:16,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:15:16,275 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:15:16,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 11:15:16,276 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)] === [2021-12-18 11:15:16,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:15:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1520479957, now seen corresponding path program 1 times [2021-12-18 11:15:16,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:15:16,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912446695] [2021-12-18 11:15:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:15:16,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:15:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:15:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:15:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:15:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:15:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:15:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:15:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:15:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:15:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:15:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:15:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:15:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:15:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:15:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:15:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:15:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:15:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:15:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:15:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:15:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:15:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:15:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:15:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:15:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:15:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:15:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:15:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:15:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:15:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:15:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 11:15:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 11:15:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 11:15:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 11:15:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 11:15:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1644 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked. [2021-12-18 11:15:16,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:15:16,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912446695] [2021-12-18 11:15:16,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912446695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:15:16,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:15:16,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:15:16,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892104257] [2021-12-18 11:15:16,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:15:16,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:15:16,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:15:16,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:15:16,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:15:16,622 INFO L87 Difference]: Start difference. First operand 10485 states and 15088 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 11:15:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:15:24,478 INFO L93 Difference]: Finished difference Result 10638 states and 15299 transitions. [2021-12-18 11:15:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:15:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 321 [2021-12-18 11:15:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:15:24,505 INFO L225 Difference]: With dead ends: 10638 [2021-12-18 11:15:24,505 INFO L226 Difference]: Without dead ends: 10636 [2021-12-18 11:15:24,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:15:24,510 INFO L933 BasicCegarLoop]: 2401 mSDtfsCounter, 2384 mSDsluCounter, 5835 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 8236 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:15:24,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2522 Valid, 8236 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-18 11:15:24,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10636 states. [2021-12-18 11:15:24,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 10538. [2021-12-18 11:15:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10538 states, 7672 states have (on average 1.3574035453597497) internal successors, (10414), 7682 states have internal predecessors, (10414), 2358 states have call successors, (2358), 506 states have call predecessors, (2358), 505 states have return successors, (2354), 2349 states have call predecessors, (2354), 2354 states have call successors, (2354) [2021-12-18 11:15:24,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10538 states to 10538 states and 15126 transitions. [2021-12-18 11:15:24,846 INFO L78 Accepts]: Start accepts. Automaton has 10538 states and 15126 transitions. Word has length 321 [2021-12-18 11:15:24,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:15:24,847 INFO L470 AbstractCegarLoop]: Abstraction has 10538 states and 15126 transitions. [2021-12-18 11:15:24,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 11:15:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10538 states and 15126 transitions. [2021-12-18 11:15:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-12-18 11:15:24,861 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:15:24,861 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:15:24,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 11:15:24,862 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)] === [2021-12-18 11:15:24,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:15:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1163428134, now seen corresponding path program 1 times [2021-12-18 11:15:24,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:15:24,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301556608] [2021-12-18 11:15:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:15:24,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:15:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:15:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:24,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:15:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:24,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:15:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:15:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:15:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:15:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:15:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:15:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:15:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:15:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:15:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:15:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:15:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:15:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:15:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:15:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:15:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:15:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:15:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:15:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:15:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:15:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:15:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:15:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:15:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:15:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:15:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 11:15:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 11:15:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:15:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-18 11:15:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 11:15:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 11:15:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-18 11:15:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 11:15:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-18 11:15:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 11:15:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 11:15:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 11:15:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 11:15:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2021-12-18 11:15:25,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:15:25,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301556608] [2021-12-18 11:15:25,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301556608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:15:25,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:15:25,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:15:25,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598492354] [2021-12-18 11:15:25,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:15:25,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:15:25,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:15:25,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:15:25,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:15:25,272 INFO L87 Difference]: Start difference. First operand 10538 states and 15126 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (43), 4 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-12-18 11:15:45,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:15:45,971 INFO L93 Difference]: Finished difference Result 22769 states and 32722 transitions. [2021-12-18 11:15:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:15:45,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (43), 4 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 362 [2021-12-18 11:15:45,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:15:46,005 INFO L225 Difference]: With dead ends: 22769 [2021-12-18 11:15:46,005 INFO L226 Difference]: Without dead ends: 13639 [2021-12-18 11:15:46,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:15:46,026 INFO L933 BasicCegarLoop]: 4233 mSDtfsCounter, 2918 mSDsluCounter, 4133 mSDsCounter, 0 mSdLazyCounter, 3925 mSolverCounterSat, 1568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3234 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 5493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1568 IncrementalHoareTripleChecker+Valid, 3925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2021-12-18 11:15:46,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3234 Valid, 8366 Invalid, 5493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1568 Valid, 3925 Invalid, 0 Unknown, 0 Unchecked, 20.2s Time] [2021-12-18 11:15:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13639 states. [2021-12-18 11:15:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13639 to 13509. [2021-12-18 11:15:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13509 states, 9845 states have (on average 1.3582529202640934) internal successors, (13372), 9855 states have internal predecessors, (13372), 3016 states have call successors, (3016), 646 states have call predecessors, (3016), 645 states have return successors, (3012), 3007 states have call predecessors, (3012), 3012 states have call successors, (3012) [2021-12-18 11:15:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 19400 transitions. [2021-12-18 11:15:46,426 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 19400 transitions. Word has length 362 [2021-12-18 11:15:46,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:15:46,427 INFO L470 AbstractCegarLoop]: Abstraction has 13509 states and 19400 transitions. [2021-12-18 11:15:46,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (43), 4 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-12-18 11:15:46,427 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 19400 transitions. [2021-12-18 11:15:46,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-18 11:15:46,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:15:46,436 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:15:46,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 11:15:46,437 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)] === [2021-12-18 11:15:46,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:15:46,437 INFO L85 PathProgramCache]: Analyzing trace with hash 541934426, now seen corresponding path program 1 times [2021-12-18 11:15:46,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:15:46,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045635629] [2021-12-18 11:15:46,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:15:46,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:15:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:15:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:15:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:15:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:15:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:15:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:15:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:15:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:15:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:15:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:15:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:15:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:15:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:15:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:15:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:15:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:15:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:15:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:15:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:15:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:15:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:15:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:15:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:15:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:15:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 11:15:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 11:15:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:15:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 11:15:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 11:15:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 11:15:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 11:15:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 11:15:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 11:15:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 11:15:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-18 11:15:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1662 trivial. 0 not checked. [2021-12-18 11:15:46,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:15:46,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045635629] [2021-12-18 11:15:46,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045635629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:15:46,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:15:46,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:15:46,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460108489] [2021-12-18 11:15:46,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:15:46,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:15:46,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:15:46,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:15:46,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:15:46,856 INFO L87 Difference]: Start difference. First operand 13509 states and 19400 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-18 11:15:49,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:15:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:15:55,564 INFO L93 Difference]: Finished difference Result 13641 states and 19620 transitions. [2021-12-18 11:15:55,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:15:55,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 326 [2021-12-18 11:15:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:15:55,660 INFO L225 Difference]: With dead ends: 13641 [2021-12-18 11:15:55,660 INFO L226 Difference]: Without dead ends: 13637 [2021-12-18 11:15:55,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:15:55,664 INFO L933 BasicCegarLoop]: 2400 mSDtfsCounter, 2439 mSDsluCounter, 5774 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 8174 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:15:55,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2581 Valid, 8174 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2021-12-18 11:15:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13637 states. [2021-12-18 11:15:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13637 to 13511. [2021-12-18 11:15:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13511 states, 9847 states have (on average 1.3580786026200873) internal successors, (13373), 9856 states have internal predecessors, (13373), 3016 states have call successors, (3016), 647 states have call predecessors, (3016), 645 states have return successors, (3012), 3007 states have call predecessors, (3012), 3012 states have call successors, (3012) [2021-12-18 11:15:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 19401 transitions. [2021-12-18 11:15:56,089 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 19401 transitions. Word has length 326 [2021-12-18 11:15:56,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:15:56,090 INFO L470 AbstractCegarLoop]: Abstraction has 13511 states and 19401 transitions. [2021-12-18 11:15:56,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-18 11:15:56,090 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 19401 transitions. [2021-12-18 11:15:56,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-12-18 11:15:56,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:15:56,100 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 12, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:15:56,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 11:15:56,100 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)] === [2021-12-18 11:15:56,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:15:56,101 INFO L85 PathProgramCache]: Analyzing trace with hash -637571289, now seen corresponding path program 1 times [2021-12-18 11:15:56,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:15:56,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920879434] [2021-12-18 11:15:56,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:15:56,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:15:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:15:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:15:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:15:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:15:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:15:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:15:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:15:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:15:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:15:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:15:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:15:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:15:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:15:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:15:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:15:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:15:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:15:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:15:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:15:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:15:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:15:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:15:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:15:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:15:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:15:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:15:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:15:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:15:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 11:15:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:15:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:15:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 11:15:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 11:15:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-18 11:15:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-18 11:15:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-18 11:15:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:15:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-18 11:15:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-18 11:15:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 11:15:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 11:15:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-12-18 11:15:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:15:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked. [2021-12-18 11:15:56,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:15:56,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920879434] [2021-12-18 11:15:56,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920879434] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:15:56,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:15:56,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 11:15:56,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437298198] [2021-12-18 11:15:56,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:15:56,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 11:15:56,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:15:56,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 11:15:56,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:15:56,526 INFO L87 Difference]: Start difference. First operand 13511 states and 19401 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 11:15:59,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:16:18,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:16:18,306 INFO L93 Difference]: Finished difference Result 28817 states and 41381 transitions. [2021-12-18 11:16:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 11:16:18,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 366 [2021-12-18 11:16:18,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:16:18,353 INFO L225 Difference]: With dead ends: 28817 [2021-12-18 11:16:18,353 INFO L226 Difference]: Without dead ends: 16714 [2021-12-18 11:16:18,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 11:16:18,381 INFO L933 BasicCegarLoop]: 4314 mSDtfsCounter, 2928 mSDsluCounter, 4207 mSDsCounter, 0 mSdLazyCounter, 3936 mSolverCounterSat, 1587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3244 SdHoareTripleChecker+Valid, 8521 SdHoareTripleChecker+Invalid, 5523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1587 IncrementalHoareTripleChecker+Valid, 3936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-12-18 11:16:18,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3244 Valid, 8521 Invalid, 5523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1587 Valid, 3936 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2021-12-18 11:16:18,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16714 states. [2021-12-18 11:16:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16714 to 16496. [2021-12-18 11:16:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16496 states, 12030 states have (on average 1.358354114713217) internal successors, (16341), 12039 states have internal predecessors, (16341), 3676 states have call successors, (3676), 789 states have call predecessors, (3676), 787 states have return successors, (3672), 3667 states have call predecessors, (3672), 3672 states have call successors, (3672) [2021-12-18 11:16:18,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16496 states to 16496 states and 23689 transitions. [2021-12-18 11:16:18,971 INFO L78 Accepts]: Start accepts. Automaton has 16496 states and 23689 transitions. Word has length 366 [2021-12-18 11:16:18,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:16:18,972 INFO L470 AbstractCegarLoop]: Abstraction has 16496 states and 23689 transitions. [2021-12-18 11:16:18,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 11:16:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 16496 states and 23689 transitions. [2021-12-18 11:16:18,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-12-18 11:16:18,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:16:18,983 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 12, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:16:18,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 11:16:18,983 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)] === [2021-12-18 11:16:18,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:16:18,983 INFO L85 PathProgramCache]: Analyzing trace with hash 243876877, now seen corresponding path program 1 times [2021-12-18 11:16:18,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:16:18,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243812182] [2021-12-18 11:16:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:16:18,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:16:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:16:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:16:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:16:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:16:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:16:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:16:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:16:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:16:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:16:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:16:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:16:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:16:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:16:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:16:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:16:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:16:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:16:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:16:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:16:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:16:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:16:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:16:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:16:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:16:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:16:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:16:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:16:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 11:16:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 11:16:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 11:16:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-18 11:16:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 11:16:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 11:16:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-18 11:16:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 11:16:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-18 11:16:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-18 11:16:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 11:16:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 11:16:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 11:16:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 11:16:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:19,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1879 trivial. 0 not checked. [2021-12-18 11:16:19,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:16:19,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243812182] [2021-12-18 11:16:19,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243812182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:16:19,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:16:19,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 11:16:19,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652818284] [2021-12-18 11:16:19,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:16:19,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 11:16:19,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:16:19,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 11:16:19,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 11:16:19,435 INFO L87 Difference]: Start difference. First operand 16496 states and 23689 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (43), 5 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-18 11:16:38,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:16:38,018 INFO L93 Difference]: Finished difference Result 16650 states and 23948 transitions. [2021-12-18 11:16:38,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 11:16:38,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (43), 5 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 367 [2021-12-18 11:16:38,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:16:38,072 INFO L225 Difference]: With dead ends: 16650 [2021-12-18 11:16:38,072 INFO L226 Difference]: Without dead ends: 16509 [2021-12-18 11:16:38,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-18 11:16:38,085 INFO L933 BasicCegarLoop]: 2233 mSDtfsCounter, 2971 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 3703 mSolverCounterSat, 1484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 6409 SdHoareTripleChecker+Invalid, 5187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1484 IncrementalHoareTripleChecker+Valid, 3703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-12-18 11:16:38,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3133 Valid, 6409 Invalid, 5187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1484 Valid, 3703 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2021-12-18 11:16:38,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16509 states. [2021-12-18 11:16:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16509 to 13398. [2021-12-18 11:16:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13398 states, 9775 states have (on average 1.3598976982097186) internal successors, (13293), 9778 states have internal predecessors, (13293), 2989 states have call successors, (2989), 632 states have call predecessors, (2989), 632 states have return successors, (2989), 2987 states have call predecessors, (2989), 2989 states have call successors, (2989) [2021-12-18 11:16:38,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13398 states to 13398 states and 19271 transitions. [2021-12-18 11:16:38,677 INFO L78 Accepts]: Start accepts. Automaton has 13398 states and 19271 transitions. Word has length 367 [2021-12-18 11:16:38,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:16:38,677 INFO L470 AbstractCegarLoop]: Abstraction has 13398 states and 19271 transitions. [2021-12-18 11:16:38,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (43), 5 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-18 11:16:38,678 INFO L276 IsEmpty]: Start isEmpty. Operand 13398 states and 19271 transitions. [2021-12-18 11:16:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-18 11:16:38,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:16:38,692 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:16:38,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 11:16:38,692 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:16:38,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:16:38,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1120713872, now seen corresponding path program 1 times [2021-12-18 11:16:38,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:16:38,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747178957] [2021-12-18 11:16:38,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:16:38,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:16:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:16:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:16:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:16:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:16:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:16:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:16:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:16:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:16:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:16:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:16:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:16:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:16:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:16:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:16:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:16:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:16:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:38,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:16:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:16:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:16:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:16:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:16:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:16:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:16:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:16:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:16:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:16:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:16:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:16:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:16:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:16:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:16:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-18 11:16:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1852 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2021-12-18 11:16:39,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:16:39,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747178957] [2021-12-18 11:16:39,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747178957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:16:39,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:16:39,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:16:39,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578795520] [2021-12-18 11:16:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:16:39,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:16:39,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:16:39,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:16:39,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:16:39,109 INFO L87 Difference]: Start difference. First operand 13398 states and 19271 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 11:16:43,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:16:53,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:16:53,405 INFO L93 Difference]: Finished difference Result 31336 states and 45123 transitions. [2021-12-18 11:16:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:16:53,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 356 [2021-12-18 11:16:53,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:16:53,468 INFO L225 Difference]: With dead ends: 31336 [2021-12-18 11:16:53,469 INFO L226 Difference]: Without dead ends: 19346 [2021-12-18 11:16:53,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:16:53,503 INFO L933 BasicCegarLoop]: 4358 mSDtfsCounter, 2250 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 9073 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:16:53,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2399 Valid, 9073 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2021-12-18 11:16:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19346 states. [2021-12-18 11:16:54,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19346 to 19158. [2021-12-18 11:16:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19158 states, 13982 states have (on average 1.3620369045916179) internal successors, (19044), 13987 states have internal predecessors, (19044), 4259 states have call successors, (4259), 915 states have call predecessors, (4259), 915 states have return successors, (4259), 4255 states have call predecessors, (4259), 4259 states have call successors, (4259) [2021-12-18 11:16:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19158 states to 19158 states and 27562 transitions. [2021-12-18 11:16:54,222 INFO L78 Accepts]: Start accepts. Automaton has 19158 states and 27562 transitions. Word has length 356 [2021-12-18 11:16:54,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:16:54,222 INFO L470 AbstractCegarLoop]: Abstraction has 19158 states and 27562 transitions. [2021-12-18 11:16:54,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 11:16:54,222 INFO L276 IsEmpty]: Start isEmpty. Operand 19158 states and 27562 transitions. [2021-12-18 11:16:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-12-18 11:16:54,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:16:54,239 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:16:54,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 11:16:54,239 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)] === [2021-12-18 11:16:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:16:54,240 INFO L85 PathProgramCache]: Analyzing trace with hash -542194414, now seen corresponding path program 1 times [2021-12-18 11:16:54,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:16:54,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491075628] [2021-12-18 11:16:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:16:54,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:16:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:16:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:16:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:16:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:16:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:16:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:16:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:16:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:16:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:16:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:16:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:16:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:16:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:16:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:16:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:16:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:16:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:16:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:16:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:16:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:16:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:16:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:16:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:16:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:16:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:16:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:16:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:16:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:16:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:16:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:16:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:16:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:16:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:16:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 11:16:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-12-18 11:16:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:16:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:16:54,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:16:54,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491075628] [2021-12-18 11:16:54,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491075628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:16:54,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:16:54,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:16:54,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908273821] [2021-12-18 11:16:54,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:16:54,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:16:54,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:16:54,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:16:54,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:16:54,657 INFO L87 Difference]: Start difference. First operand 19158 states and 27562 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:16:57,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:16:58,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:17:04,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:17:05,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:17:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:17:14,739 INFO L93 Difference]: Finished difference Result 42720 states and 61501 transitions. [2021-12-18 11:17:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:17:14,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 381 [2021-12-18 11:17:14,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:17:14,847 INFO L225 Difference]: With dead ends: 42720 [2021-12-18 11:17:14,847 INFO L226 Difference]: Without dead ends: 24970 [2021-12-18 11:17:14,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:17:14,893 INFO L933 BasicCegarLoop]: 4354 mSDtfsCounter, 2109 mSDsluCounter, 12748 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 17102 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:17:14,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2258 Valid, 17102 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time] [2021-12-18 11:17:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24970 states. [2021-12-18 11:17:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24970 to 24718. [2021-12-18 11:17:15,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24718 states, 17993 states have (on average 1.3622519868837881) internal successors, (24511), 18000 states have internal predecessors, (24511), 5525 states have call successors, (5525), 1194 states have call predecessors, (5525), 1198 states have return successors, (5529), 5523 states have call predecessors, (5529), 5525 states have call successors, (5529) [2021-12-18 11:17:15,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24718 states to 24718 states and 35565 transitions. [2021-12-18 11:17:15,893 INFO L78 Accepts]: Start accepts. Automaton has 24718 states and 35565 transitions. Word has length 381 [2021-12-18 11:17:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:17:15,894 INFO L470 AbstractCegarLoop]: Abstraction has 24718 states and 35565 transitions. [2021-12-18 11:17:15,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:17:15,894 INFO L276 IsEmpty]: Start isEmpty. Operand 24718 states and 35565 transitions. [2021-12-18 11:17:15,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-12-18 11:17:15,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:17:15,912 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:17:15,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 11:17:15,913 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)] === [2021-12-18 11:17:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:17:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash 698510605, now seen corresponding path program 1 times [2021-12-18 11:17:15,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:17:15,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633707168] [2021-12-18 11:17:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:17:15,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:17:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:17:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:17:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:17:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:17:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:17:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:17:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:17:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:17:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:17:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:17:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:17:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:17:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:17:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:17:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:17:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:17:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:17:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:17:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:17:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:17:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:17:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:17:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:17:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:17:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:17:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:17:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:17:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:17:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:17:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:17:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:17:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:17:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-18 11:17:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-18 11:17:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:17:16,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:17:16,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633707168] [2021-12-18 11:17:16,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633707168] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:17:16,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:17:16,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:17:16,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350122136] [2021-12-18 11:17:16,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:17:16,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:17:16,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:17:16,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:17:16,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:17:16,279 INFO L87 Difference]: Start difference. First operand 24718 states and 35565 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:17:18,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:17:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:17:29,601 INFO L93 Difference]: Finished difference Result 53716 states and 77319 transitions. [2021-12-18 11:17:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:17:29,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 382 [2021-12-18 11:17:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:17:29,695 INFO L225 Difference]: With dead ends: 53716 [2021-12-18 11:17:29,696 INFO L226 Difference]: Without dead ends: 30406 [2021-12-18 11:17:29,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:17:29,750 INFO L933 BasicCegarLoop]: 4288 mSDtfsCounter, 2038 mSDsluCounter, 12561 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 466 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 16849 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:17:29,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2184 Valid, 16849 Invalid, 2429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 1962 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2021-12-18 11:17:29,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30406 states. [2021-12-18 11:17:30,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30406 to 30094. [2021-12-18 11:17:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30094 states, 21860 states have (on average 1.3614821591948765) internal successors, (29762), 21869 states have internal predecessors, (29762), 6755 states have call successors, (6755), 1469 states have call predecessors, (6755), 1477 states have return successors, (6763), 6755 states have call predecessors, (6763), 6755 states have call successors, (6763) [2021-12-18 11:17:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30094 states to 30094 states and 43280 transitions. [2021-12-18 11:17:30,924 INFO L78 Accepts]: Start accepts. Automaton has 30094 states and 43280 transitions. Word has length 382 [2021-12-18 11:17:30,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:17:30,924 INFO L470 AbstractCegarLoop]: Abstraction has 30094 states and 43280 transitions. [2021-12-18 11:17:30,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:17:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 30094 states and 43280 transitions. [2021-12-18 11:17:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-12-18 11:17:30,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:17:30,942 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:17:30,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 11:17:30,943 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)] === [2021-12-18 11:17:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:17:30,943 INFO L85 PathProgramCache]: Analyzing trace with hash -933706769, now seen corresponding path program 1 times [2021-12-18 11:17:30,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:17:30,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45991368] [2021-12-18 11:17:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:17:30,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:17:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:17:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:17:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:17:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:17:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:17:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:17:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:17:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:17:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:17:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:17:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:17:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:17:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:17:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:17:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:17:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:17:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:17:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:17:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:17:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:17:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:17:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:17:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:17:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:17:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:17:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:17:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:17:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:17:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:17:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:17:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:17:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:17:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 11:17:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 11:17:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:17:31,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:17:31,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45991368] [2021-12-18 11:17:31,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45991368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:17:31,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:17:31,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:17:31,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062372687] [2021-12-18 11:17:31,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:17:31,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:17:31,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:17:31,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:17:31,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:17:31,242 INFO L87 Difference]: Start difference. First operand 30094 states and 43280 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:17:33,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:17:49,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:17:49,651 INFO L93 Difference]: Finished difference Result 64724 states and 93153 transitions. [2021-12-18 11:17:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:17:49,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 383 [2021-12-18 11:17:49,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:17:49,762 INFO L225 Difference]: With dead ends: 64724 [2021-12-18 11:17:49,762 INFO L226 Difference]: Without dead ends: 36038 [2021-12-18 11:17:49,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:17:49,821 INFO L933 BasicCegarLoop]: 4359 mSDtfsCounter, 2120 mSDsluCounter, 12746 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 17105 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:17:49,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2269 Valid, 17105 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2021-12-18 11:17:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36038 states. [2021-12-18 11:17:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36038 to 35674. [2021-12-18 11:17:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35674 states, 25891 states have (on average 1.3614383376462864) internal successors, (35249), 25902 states have internal predecessors, (35249), 8021 states have call successors, (8021), 1748 states have call predecessors, (8021), 1760 states have return successors, (8033), 8023 states have call predecessors, (8033), 8021 states have call successors, (8033) [2021-12-18 11:17:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35674 states to 35674 states and 51303 transitions. [2021-12-18 11:17:51,244 INFO L78 Accepts]: Start accepts. Automaton has 35674 states and 51303 transitions. Word has length 383 [2021-12-18 11:17:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:17:51,245 INFO L470 AbstractCegarLoop]: Abstraction has 35674 states and 51303 transitions. [2021-12-18 11:17:51,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:17:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 35674 states and 51303 transitions. [2021-12-18 11:17:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-12-18 11:17:51,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:17:51,264 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:17:51,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 11:17:51,264 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)] === [2021-12-18 11:17:51,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:17:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1432205110, now seen corresponding path program 1 times [2021-12-18 11:17:51,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:17:51,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627012856] [2021-12-18 11:17:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:17:51,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:17:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:17:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:17:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:17:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:17:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:17:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:17:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:17:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:17:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:17:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:17:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:17:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:17:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:17:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:17:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:17:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:17:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:17:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:17:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:17:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:17:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:17:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:17:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:17:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:17:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:17:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:17:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:17:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:17:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:17:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:17:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:17:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:17:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:17:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 11:17:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-12-18 11:17:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:17:51,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:17:51,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:17:51,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627012856] [2021-12-18 11:17:51,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627012856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:17:51,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:17:51,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:17:51,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349849900] [2021-12-18 11:17:51,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:17:51,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:17:51,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:17:51,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:17:51,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:17:51,548 INFO L87 Difference]: Start difference. First operand 35674 states and 51303 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:17:52,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:17:54,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:17:59,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:18:02,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:18:12,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:18:12,162 INFO L93 Difference]: Finished difference Result 75944 states and 109295 transitions. [2021-12-18 11:18:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:18:12,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 384 [2021-12-18 11:18:12,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:18:12,302 INFO L225 Difference]: With dead ends: 75944 [2021-12-18 11:18:12,303 INFO L226 Difference]: Without dead ends: 41678 [2021-12-18 11:18:12,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:18:12,385 INFO L933 BasicCegarLoop]: 4361 mSDtfsCounter, 2111 mSDsluCounter, 12762 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 470 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 17123 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:18:12,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2259 Valid, 17123 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1998 Invalid, 1 Unknown, 0 Unchecked, 19.1s Time] [2021-12-18 11:18:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41678 states. [2021-12-18 11:18:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41678 to 41258. [2021-12-18 11:18:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41258 states, 29926 states have (on average 1.3613580164405534) internal successors, (40740), 29939 states have internal predecessors, (40740), 9287 states have call successors, (9287), 2027 states have call predecessors, (9287), 2043 states have return successors, (9303), 9291 states have call predecessors, (9303), 9287 states have call successors, (9303) [2021-12-18 11:18:14,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41258 states to 41258 states and 59330 transitions. [2021-12-18 11:18:14,043 INFO L78 Accepts]: Start accepts. Automaton has 41258 states and 59330 transitions. Word has length 384 [2021-12-18 11:18:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:18:14,043 INFO L470 AbstractCegarLoop]: Abstraction has 41258 states and 59330 transitions. [2021-12-18 11:18:14,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:18:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 41258 states and 59330 transitions. [2021-12-18 11:18:14,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-12-18 11:18:14,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:18:14,062 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:18:14,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 11:18:14,063 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:18:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:18:14,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1145151796, now seen corresponding path program 1 times [2021-12-18 11:18:14,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:18:14,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805336578] [2021-12-18 11:18:14,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:18:14,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:18:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:18:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:18:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:18:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:18:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:18:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:18:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:18:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:18:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:18:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:18:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:18:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:18:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:18:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:18:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:18:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:18:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:18:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:18:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:18:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:18:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:18:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:18:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:18:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:18:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:18:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:18:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:18:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:18:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:18:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:18:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:18:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:18:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-12-18 11:18:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-18 11:18:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:18:14,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:18:14,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805336578] [2021-12-18 11:18:14,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805336578] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:18:14,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:18:14,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:18:14,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447226946] [2021-12-18 11:18:14,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:18:14,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:18:14,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:18:14,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:18:14,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:18:14,339 INFO L87 Difference]: Start difference. First operand 41258 states and 59330 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:18:16,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:18:18,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:18:23,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:18:33,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:18:33,480 INFO L93 Difference]: Finished difference Result 87172 states and 125445 transitions. [2021-12-18 11:18:33,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:18:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 385 [2021-12-18 11:18:33,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:18:33,618 INFO L225 Difference]: With dead ends: 87172 [2021-12-18 11:18:33,619 INFO L226 Difference]: Without dead ends: 47322 [2021-12-18 11:18:33,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:18:33,700 INFO L933 BasicCegarLoop]: 4359 mSDtfsCounter, 2110 mSDsluCounter, 12757 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 17116 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:18:33,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2258 Valid, 17116 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 2003 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2021-12-18 11:18:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47322 states. [2021-12-18 11:18:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47322 to 46846. [2021-12-18 11:18:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46846 states, 33965 states have (on average 1.3612542322979537) internal successors, (46235), 33980 states have internal predecessors, (46235), 10553 states have call successors, (10553), 2306 states have call predecessors, (10553), 2326 states have return successors, (10573), 10559 states have call predecessors, (10573), 10553 states have call successors, (10573) [2021-12-18 11:18:35,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46846 states to 46846 states and 67361 transitions. [2021-12-18 11:18:35,584 INFO L78 Accepts]: Start accepts. Automaton has 46846 states and 67361 transitions. Word has length 385 [2021-12-18 11:18:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:18:35,584 INFO L470 AbstractCegarLoop]: Abstraction has 46846 states and 67361 transitions. [2021-12-18 11:18:35,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:18:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 46846 states and 67361 transitions. [2021-12-18 11:18:35,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-12-18 11:18:35,605 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:18:35,605 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:18:35,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 11:18:35,605 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:18:35,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:18:35,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2019166343, now seen corresponding path program 1 times [2021-12-18 11:18:35,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:18:35,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106385564] [2021-12-18 11:18:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:18:35,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:18:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:18:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:18:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:18:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:18:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:18:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:18:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:18:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:18:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:18:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:18:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:18:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:18:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:18:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:18:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:18:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:18:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:18:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:18:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:18:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:18:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:18:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:35,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:18:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:18:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:18:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:18:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:18:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:18:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:18:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:18:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:18:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:18:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:18:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-18 11:18:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-18 11:18:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:18:36,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:18:36,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106385564] [2021-12-18 11:18:36,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106385564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:18:36,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:18:36,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:18:36,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966196251] [2021-12-18 11:18:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:18:36,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:18:36,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:18:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:18:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:18:36,060 INFO L87 Difference]: Start difference. First operand 46846 states and 67361 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:18:42,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:18:44,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:18:55,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:18:55,054 INFO L93 Difference]: Finished difference Result 98408 states and 141603 transitions. [2021-12-18 11:18:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:18:55,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 386 [2021-12-18 11:18:55,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:18:55,290 INFO L225 Difference]: With dead ends: 98408 [2021-12-18 11:18:55,290 INFO L226 Difference]: Without dead ends: 52970 [2021-12-18 11:18:55,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:18:55,419 INFO L933 BasicCegarLoop]: 4359 mSDtfsCounter, 2110 mSDsluCounter, 12758 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 17117 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:18:55,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2259 Valid, 17117 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2021-12-18 11:18:55,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52970 states. [2021-12-18 11:18:57,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52970 to 52438. [2021-12-18 11:18:57,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52438 states, 38008 states have (on average 1.361134498000421) internal successors, (51734), 38025 states have internal predecessors, (51734), 11819 states have call successors, (11819), 2585 states have call predecessors, (11819), 2609 states have return successors, (11843), 11827 states have call predecessors, (11843), 11819 states have call successors, (11843) [2021-12-18 11:18:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52438 states to 52438 states and 75396 transitions. [2021-12-18 11:18:57,533 INFO L78 Accepts]: Start accepts. Automaton has 52438 states and 75396 transitions. Word has length 386 [2021-12-18 11:18:57,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:18:57,534 INFO L470 AbstractCegarLoop]: Abstraction has 52438 states and 75396 transitions. [2021-12-18 11:18:57,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:18:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 52438 states and 75396 transitions. [2021-12-18 11:18:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2021-12-18 11:18:57,556 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:18:57,556 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:18:57,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 11:18:57,556 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:18:57,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:18:57,557 INFO L85 PathProgramCache]: Analyzing trace with hash -110586455, now seen corresponding path program 1 times [2021-12-18 11:18:57,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:18:57,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12893365] [2021-12-18 11:18:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:18:57,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:18:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:18:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:18:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:18:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:18:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:18:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:18:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:18:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:18:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:18:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:18:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:18:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:18:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:18:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:18:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:18:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:18:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:18:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:18:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:18:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:18:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:18:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:18:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:18:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:18:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:18:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:18:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:18:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:18:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:18:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:18:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:18:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:18:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:18:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 11:18:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-18 11:18:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:18:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:18:57,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:18:57,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12893365] [2021-12-18 11:18:57,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12893365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:18:57,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:18:57,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:18:57,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634659688] [2021-12-18 11:18:57,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:18:57,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:18:57,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:18:57,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:18:57,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:18:57,840 INFO L87 Difference]: Start difference. First operand 52438 states and 75396 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:18:59,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:01,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:02,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:05,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:10,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:20,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:19:20,744 INFO L93 Difference]: Finished difference Result 109652 states and 157769 transitions. [2021-12-18 11:19:20,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:19:20,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 387 [2021-12-18 11:19:20,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:19:21,040 INFO L225 Difference]: With dead ends: 109652 [2021-12-18 11:19:21,040 INFO L226 Difference]: Without dead ends: 58622 [2021-12-18 11:19:21,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:19:21,391 INFO L933 BasicCegarLoop]: 4360 mSDtfsCounter, 2110 mSDsluCounter, 12761 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 17121 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:19:21,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2258 Valid, 17121 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 20.8s Time] [2021-12-18 11:19:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58622 states. [2021-12-18 11:19:23,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58622 to 58034. [2021-12-18 11:19:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58034 states, 42055 states have (on average 1.36100344786589) internal successors, (57237), 42074 states have internal predecessors, (57237), 13085 states have call successors, (13085), 2864 states have call predecessors, (13085), 2892 states have return successors, (13113), 13095 states have call predecessors, (13113), 13085 states have call successors, (13113) [2021-12-18 11:19:23,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58034 states to 58034 states and 83435 transitions. [2021-12-18 11:19:23,946 INFO L78 Accepts]: Start accepts. Automaton has 58034 states and 83435 transitions. Word has length 387 [2021-12-18 11:19:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:19:23,947 INFO L470 AbstractCegarLoop]: Abstraction has 58034 states and 83435 transitions. [2021-12-18 11:19:23,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:19:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 58034 states and 83435 transitions. [2021-12-18 11:19:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-12-18 11:19:23,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:19:23,973 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:19:23,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 11:19:23,987 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:19:23,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:19:23,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1147186244, now seen corresponding path program 1 times [2021-12-18 11:19:23,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:19:23,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275547436] [2021-12-18 11:19:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:19:23,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:19:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:19:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:19:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:19:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:19:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:19:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:19:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:19:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:19:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:19:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:19:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:19:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:19:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:19:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:19:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:19:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:19:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:19:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:19:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:19:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:19:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:19:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:19:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:19:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:19:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:19:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:19:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:19:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:19:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:19:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:19:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:19:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:19:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 11:19:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-12-18 11:19:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:19:24,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:19:24,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275547436] [2021-12-18 11:19:24,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275547436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:19:24,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:19:24,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:19:24,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142003244] [2021-12-18 11:19:24,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:19:24,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:19:24,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:19:24,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:19:24,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:19:24,553 INFO L87 Difference]: Start difference. First operand 58034 states and 83435 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:19:25,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:27,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:29,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:31,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:35,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:37,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:48,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:19:48,126 INFO L93 Difference]: Finished difference Result 120716 states and 173651 transitions. [2021-12-18 11:19:48,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:19:48,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 388 [2021-12-18 11:19:48,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:19:48,484 INFO L225 Difference]: With dead ends: 120716 [2021-12-18 11:19:48,485 INFO L226 Difference]: Without dead ends: 64090 [2021-12-18 11:19:48,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:19:48,606 INFO L933 BasicCegarLoop]: 4289 mSDtfsCounter, 2040 mSDsluCounter, 12562 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 474 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2186 SdHoareTripleChecker+Valid, 16851 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:19:48,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2186 Valid, 16851 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 2002 Invalid, 1 Unknown, 0 Unchecked, 21.4s Time] [2021-12-18 11:19:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64090 states. [2021-12-18 11:19:51,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64090 to 63442. [2021-12-18 11:19:51,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63442 states, 45954 states have (on average 1.360490925708317) internal successors, (62520), 45975 states have internal predecessors, (62520), 14315 states have call successors, (14315), 3139 states have call predecessors, (14315), 3171 states have return successors, (14347), 14327 states have call predecessors, (14347), 14315 states have call successors, (14347) [2021-12-18 11:19:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63442 states to 63442 states and 91182 transitions. [2021-12-18 11:19:51,601 INFO L78 Accepts]: Start accepts. Automaton has 63442 states and 91182 transitions. Word has length 388 [2021-12-18 11:19:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:19:51,602 INFO L470 AbstractCegarLoop]: Abstraction has 63442 states and 91182 transitions. [2021-12-18 11:19:51,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:19:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 63442 states and 91182 transitions. [2021-12-18 11:19:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-12-18 11:19:51,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:19:51,630 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:19:51,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 11:19:51,631 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:19:51,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:19:51,631 INFO L85 PathProgramCache]: Analyzing trace with hash 44066950, now seen corresponding path program 1 times [2021-12-18 11:19:51,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:19:51,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114176027] [2021-12-18 11:19:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:19:51,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:19:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:19:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:19:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:19:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:19:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:19:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:19:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:19:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:19:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:19:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:19:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:19:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:19:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:19:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:19:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:19:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:19:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:19:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:19:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:19:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:19:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:19:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:19:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:19:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:19:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:19:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:19:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:19:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:19:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:19:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:19:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:19:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:19:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:19:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 11:19:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-12-18 11:19:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:19:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:19:52,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:19:52,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114176027] [2021-12-18 11:19:52,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114176027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:19:52,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:19:52,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:19:52,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781253128] [2021-12-18 11:19:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:19:52,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:19:52,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:19:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:19:52,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:19:52,102 INFO L87 Difference]: Start difference. First operand 63442 states and 91182 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:19:53,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:19:54,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:20:01,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:20:03,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:20:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:20:14,937 INFO L93 Difference]: Finished difference Result 131780 states and 189533 transitions. [2021-12-18 11:20:14,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:20:14,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 389 [2021-12-18 11:20:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:20:15,224 INFO L225 Difference]: With dead ends: 131780 [2021-12-18 11:20:15,224 INFO L226 Difference]: Without dead ends: 69746 [2021-12-18 11:20:15,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:20:15,525 INFO L933 BasicCegarLoop]: 4334 mSDtfsCounter, 2120 mSDsluCounter, 12679 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 479 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 17013 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:20:15,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2270 Valid, 17013 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 2009 Invalid, 1 Unknown, 0 Unchecked, 20.3s Time] [2021-12-18 11:20:15,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69746 states. [2021-12-18 11:20:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69746 to 69046. [2021-12-18 11:20:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69046 states, 50009 states have (on average 1.3603751324761544) internal successors, (68031), 50032 states have internal predecessors, (68031), 15581 states have call successors, (15581), 3418 states have call predecessors, (15581), 3454 states have return successors, (15617), 15595 states have call predecessors, (15617), 15581 states have call successors, (15617) [2021-12-18 11:20:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69046 states to 69046 states and 99229 transitions. [2021-12-18 11:20:18,165 INFO L78 Accepts]: Start accepts. Automaton has 69046 states and 99229 transitions. Word has length 389 [2021-12-18 11:20:18,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:20:18,166 INFO L470 AbstractCegarLoop]: Abstraction has 69046 states and 99229 transitions. [2021-12-18 11:20:18,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:20:18,166 INFO L276 IsEmpty]: Start isEmpty. Operand 69046 states and 99229 transitions. [2021-12-18 11:20:18,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-12-18 11:20:18,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:20:18,194 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:20:18,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-18 11:20:18,195 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:20:18,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:20:18,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1232260095, now seen corresponding path program 1 times [2021-12-18 11:20:18,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:20:18,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662487852] [2021-12-18 11:20:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:20:18,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:20:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:20:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:20:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:20:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:20:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:20:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:20:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:20:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:20:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:20:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:20:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:20:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:20:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:20:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:20:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:20:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:20:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:20:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:20:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:20:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:20:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:20:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:20:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:20:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:20:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:20:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:20:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:20:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:20:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:20:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:20:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:20:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:20:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-18 11:20:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 11:20:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:20:18,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:20:18,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662487852] [2021-12-18 11:20:18,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662487852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:20:18,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:20:18,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:20:18,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070987125] [2021-12-18 11:20:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:20:18,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:20:18,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:20:18,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:20:18,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:20:18,522 INFO L87 Difference]: Start difference. First operand 69046 states and 99229 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:20:23,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:20:27,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:20:30,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:20:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:20:41,988 INFO L93 Difference]: Finished difference Result 142860 states and 205431 transitions. [2021-12-18 11:20:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:20:41,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 390 [2021-12-18 11:20:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:20:42,352 INFO L225 Difference]: With dead ends: 142860 [2021-12-18 11:20:42,353 INFO L226 Difference]: Without dead ends: 75222 [2021-12-18 11:20:42,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:20:42,546 INFO L933 BasicCegarLoop]: 4288 mSDtfsCounter, 2048 mSDsluCounter, 12550 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 476 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 16838 SdHoareTripleChecker+Invalid, 2487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:20:42,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2196 Valid, 16838 Invalid, 2487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 2010 Invalid, 1 Unknown, 0 Unchecked, 20.4s Time] [2021-12-18 11:20:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75222 states. [2021-12-18 11:20:45,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75222 to 74462. [2021-12-18 11:20:45,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74462 states, 53916 states have (on average 1.3599302618888642) internal successors, (73322), 53941 states have internal predecessors, (73322), 16811 states have call successors, (16811), 3693 states have call predecessors, (16811), 3733 states have return successors, (16851), 16827 states have call predecessors, (16851), 16811 states have call successors, (16851) [2021-12-18 11:20:45,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74462 states to 74462 states and 106984 transitions. [2021-12-18 11:20:45,564 INFO L78 Accepts]: Start accepts. Automaton has 74462 states and 106984 transitions. Word has length 390 [2021-12-18 11:20:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:20:45,564 INFO L470 AbstractCegarLoop]: Abstraction has 74462 states and 106984 transitions. [2021-12-18 11:20:45,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:20:45,565 INFO L276 IsEmpty]: Start isEmpty. Operand 74462 states and 106984 transitions. [2021-12-18 11:20:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-12-18 11:20:45,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:20:45,596 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:20:45,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-18 11:20:45,596 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:20:45,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:20:45,597 INFO L85 PathProgramCache]: Analyzing trace with hash 711907171, now seen corresponding path program 1 times [2021-12-18 11:20:45,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:20:45,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050610227] [2021-12-18 11:20:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:20:45,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:20:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:20:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:20:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:20:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:20:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:20:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:20:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:20:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:20:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:20:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:20:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:20:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:20:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:20:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:20:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:20:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:20:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:20:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:20:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:20:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:20:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:20:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:20:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:20:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:20:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:20:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:20:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:20:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:20:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:20:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:20:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:20:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:20:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:20:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-12-18 11:20:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-18 11:20:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:20:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2021-12-18 11:20:45,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:20:45,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050610227] [2021-12-18 11:20:45,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050610227] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:20:45,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:20:45,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:20:45,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722207321] [2021-12-18 11:20:45,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:20:45,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:20:45,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:20:45,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:20:45,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:20:45,911 INFO L87 Difference]: Start difference. First operand 74462 states and 106984 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:20:50,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:20:55,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:21:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:21:07,420 INFO L93 Difference]: Finished difference Result 153940 states and 221329 transitions. [2021-12-18 11:21:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:21:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 391 [2021-12-18 11:21:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:21:07,799 INFO L225 Difference]: With dead ends: 153940 [2021-12-18 11:21:07,800 INFO L226 Difference]: Without dead ends: 80886 [2021-12-18 11:21:07,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 11:21:07,980 INFO L933 BasicCegarLoop]: 4360 mSDtfsCounter, 2111 mSDsluCounter, 12760 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 17120 SdHoareTripleChecker+Invalid, 2504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:21:07,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2261 Valid, 17120 Invalid, 2504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2021-12-18 11:21:08,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80886 states. [2021-12-18 11:21:10,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80886 to 80074. [2021-12-18 11:21:10,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80074 states, 57979 states have (on average 1.3598199348039808) internal successors, (78841), 58006 states have internal predecessors, (78841), 18077 states have call successors, (18077), 3972 states have call predecessors, (18077), 4016 states have return successors, (18121), 18095 states have call predecessors, (18121), 18077 states have call successors, (18121) [2021-12-18 11:21:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80074 states to 80074 states and 115039 transitions. [2021-12-18 11:21:11,287 INFO L78 Accepts]: Start accepts. Automaton has 80074 states and 115039 transitions. Word has length 391 [2021-12-18 11:21:11,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:21:11,287 INFO L470 AbstractCegarLoop]: Abstraction has 80074 states and 115039 transitions. [2021-12-18 11:21:11,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 11:21:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 80074 states and 115039 transitions. [2021-12-18 11:21:11,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2021-12-18 11:21:11,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:21:11,323 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:21:11,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-18 11:21:11,324 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:21:11,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:21:11,324 INFO L85 PathProgramCache]: Analyzing trace with hash -587817026, now seen corresponding path program 1 times [2021-12-18 11:21:11,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:21:11,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86841400] [2021-12-18 11:21:11,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:21:11,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:21:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:21:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:21:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:21:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:21:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:21:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:21:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:21:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:21:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:21:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:21:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:21:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:21:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:21:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:21:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:21:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:21:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:21:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:21:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:21:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:21:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:21:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:21:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:21:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:21:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:21:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:21:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:21:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:21:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:21:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:21:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:21:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:21:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-18 11:21:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-12-18 11:21:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:11,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2026 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2026 trivial. 0 not checked. [2021-12-18 11:21:11,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:21:11,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86841400] [2021-12-18 11:21:11,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86841400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:21:11,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:21:11,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:21:11,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497999310] [2021-12-18 11:21:11,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:21:11,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:21:11,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:21:11,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:21:11,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:21:11,970 INFO L87 Difference]: Start difference. First operand 80074 states and 115039 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:21:14,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:21:16,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:21:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:21:24,563 INFO L93 Difference]: Finished difference Result 80872 states and 116310 transitions. [2021-12-18 11:21:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:21:24,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 392 [2021-12-18 11:21:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:21:24,862 INFO L225 Difference]: With dead ends: 80872 [2021-12-18 11:21:24,862 INFO L226 Difference]: Without dead ends: 80870 [2021-12-18 11:21:24,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 11:21:24,900 INFO L933 BasicCegarLoop]: 2354 mSDtfsCounter, 2308 mSDsluCounter, 5788 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 453 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2436 SdHoareTripleChecker+Valid, 8142 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:21:24,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2436 Valid, 8142 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 936 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2021-12-18 11:21:24,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80870 states. [2021-12-18 11:21:28,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80870 to 80072. [2021-12-18 11:21:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80072 states, 57978 states have (on average 1.3588430094173651) internal successors, (78783), 58004 states have internal predecessors, (78783), 18077 states have call successors, (18077), 3972 states have call predecessors, (18077), 4016 states have return successors, (18121), 18095 states have call predecessors, (18121), 18077 states have call successors, (18121) [2021-12-18 11:21:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80072 states to 80072 states and 114981 transitions. [2021-12-18 11:21:28,545 INFO L78 Accepts]: Start accepts. Automaton has 80072 states and 114981 transitions. Word has length 392 [2021-12-18 11:21:28,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:21:28,546 INFO L470 AbstractCegarLoop]: Abstraction has 80072 states and 114981 transitions. [2021-12-18 11:21:28,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (35), 4 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:21:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 80072 states and 114981 transitions. [2021-12-18 11:21:28,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-12-18 11:21:28,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:21:28,609 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 17, 17, 17, 17, 17, 17, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:21:28,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-18 11:21:28,609 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:21:28,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:21:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1386332667, now seen corresponding path program 1 times [2021-12-18 11:21:28,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:21:28,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491140141] [2021-12-18 11:21:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:21:28,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:21:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:21:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:21:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:21:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:21:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:21:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:21:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:21:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:21:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:21:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:21:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 11:21:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:21:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:21:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 11:21:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 11:21:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:21:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 11:21:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:21:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:28,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 11:21:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 11:21:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 11:21:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 11:21:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 11:21:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 11:21:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 11:21:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 11:21:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 11:21:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 11:21:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 11:21:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 11:21:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 11:21:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 11:21:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:21:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-18 11:21:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-12-18 11:21:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-12-18 11:21:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 11:21:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 11:21:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-12-18 11:21:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:21:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2050 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2050 trivial. 0 not checked. [2021-12-18 11:21:29,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:21:29,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491140141] [2021-12-18 11:21:29,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491140141] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:21:29,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:21:29,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 11:21:29,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550102935] [2021-12-18 11:21:29,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:21:29,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 11:21:29,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:21:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 11:21:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 11:21:29,244 INFO L87 Difference]: Start difference. First operand 80072 states and 114981 transitions. Second operand has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (39), 5 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 11:21:30,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:21:32,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:21:34,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:21:35,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:21:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:21:45,163 INFO L93 Difference]: Finished difference Result 81212 states and 116765 transitions. [2021-12-18 11:21:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 11:21:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (39), 5 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) Word has length 413 [2021-12-18 11:21:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:21:45,172 INFO L225 Difference]: With dead ends: 81212 [2021-12-18 11:21:45,172 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 11:21:45,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-18 11:21:45,341 INFO L933 BasicCegarLoop]: 2225 mSDtfsCounter, 1056 mSDsluCounter, 6738 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 818 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 8963 SdHoareTripleChecker+Invalid, 4334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:21:45,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 8963 Invalid, 4334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 3515 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2021-12-18 11:21:45,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 11:21:45,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 11:21:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 11:21:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 11:21:45,350 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 413 [2021-12-18 11:21:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:21:45,351 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 11:21:45,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (39), 5 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) [2021-12-18 11:21:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 11:21:45,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 11:21:45,353 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-18 11:21:45,354 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-12-18 11:21:45,354 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-18 11:21:45,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-18 11:21:45,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.